Merge pull request #17 from bunnei/arm-vfp

ARM VFP support - integrated from SkyEye

src/core/CMakeLists.txt

@@ -7,6 +7,7 @@ set(SRCS    core.cpp
             arm/disassembler/arm_disasm.cpp
             arm/disassembler/load_symbol_map.cpp
             arm/interpreter/arm_interpreter.cpp
+            arm/interpreter/armcopro.cpp
             arm/interpreter/armemu.cpp
             arm/interpreter/arminit.cpp
             arm/interpreter/armmmu.cpp
@@ -14,7 +15,18 @@ set(SRCS    core.cpp
             arm/interpreter/armsupp.cpp
             arm/interpreter/armvirt.cpp
             arm/interpreter/thumbemu.cpp
-            arm/mmu/arm1176jzf_s_mmu.cpp
+            arm/interpreter/vfp/vfp.cpp
+            arm/interpreter/vfp/vfpdouble.cpp
+            arm/interpreter/vfp/vfpinstr.cpp
+            arm/interpreter/vfp/vfpsingle.cpp
+            arm/interpreter/mmu/arm1176jzf_s_mmu.cpp
+            arm/interpreter/mmu/cache.cpp
+            arm/interpreter/mmu/maverick.cpp
+            arm/interpreter/mmu/rb.cpp
+            arm/interpreter/mmu/sa_mmu.cpp
+            arm/interpreter/mmu/tlb.cpp
+            arm/interpreter/mmu/wb.cpp
+            arm/interpreter/mmu/xscale_copro.cpp
             elf/elf_reader.cpp
             file_sys/directory_file_system.cpp
             file_sys/meta_file_system.cpp

src/core/arm/interpreter/arm_interpreter.cpp

@@ -2,7 +2,7 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.  
 
-#include "arm_interpreter.h"
+#include "core/arm/interpreter/arm_interpreter.h"
 
 const static cpu_config_t s_arm11_cpu_info = {
     "armv6", "arm11", 0x0007b000, 0x0007f000, NONCACHE

src/core/arm/interpreter/armcopro.cpp

@@ -0,0 +1,842 @@
+/*  armcopro.c -- co-processor interface:  ARM6 Instruction Emulator.
+    Copyright (C) 1994, 2000 Advanced RISC Machines Ltd.
+ 
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+ 
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+ 
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+
+#include "core/arm/interpreter/armdefs.h"
+#include "core/arm/interpreter/armos.h"
+#include "core/arm/interpreter/armemu.h"
+#include "core/arm/interpreter/vfp/vfp.h"
+
+//chy 2005-07-08
+//#include "ansidecl.h"
+//chy -------
+//#include "iwmmxt.h"
+
+
+//chy 2005-09-19 add CP6 MRC support (for get irq number and base)
+extern unsigned xscale_cp6_mrc (ARMul_State * state, unsigned type,
+				ARMword instr, ARMword * data);
+//chy 2005-09-19---------------
+
+extern unsigned xscale_cp13_init (ARMul_State * state);
+extern unsigned xscale_cp13_exit (ARMul_State * state);
+extern unsigned xscale_cp13_ldc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword data);
+extern unsigned xscale_cp13_stc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword * data);
+extern unsigned xscale_cp13_mrc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword * data);
+extern unsigned xscale_cp13_mcr (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword data);
+extern unsigned xscale_cp13_cdp (ARMul_State * state, unsigned type,
+				 ARMword instr);
+extern unsigned xscale_cp13_read_reg (ARMul_State * state, unsigned reg,
+				      ARMword * data);
+extern unsigned xscale_cp13_write_reg (ARMul_State * state, unsigned reg,
+				       ARMword data);
+extern unsigned xscale_cp14_init (ARMul_State * state);
+extern unsigned xscale_cp14_exit (ARMul_State * state);
+extern unsigned xscale_cp14_ldc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword data);
+extern unsigned xscale_cp14_stc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword * data);
+extern unsigned xscale_cp14_mrc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword * data);
+extern unsigned xscale_cp14_mcr (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword data);
+extern unsigned xscale_cp14_cdp (ARMul_State * state, unsigned type,
+				 ARMword instr);
+extern unsigned xscale_cp14_read_reg (ARMul_State * state, unsigned reg,
+				      ARMword * data);
+extern unsigned xscale_cp14_write_reg (ARMul_State * state, unsigned reg,
+				       ARMword data);
+extern unsigned xscale_cp15_init (ARMul_State * state);
+extern unsigned xscale_cp15_exit (ARMul_State * state);
+extern unsigned xscale_cp15_ldc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword data);
+extern unsigned xscale_cp15_stc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword * data);
+extern unsigned xscale_cp15_mrc (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword * data);
+extern unsigned xscale_cp15_mcr (ARMul_State * state, unsigned type,
+				 ARMword instr, ARMword data);
+extern unsigned xscale_cp15_cdp (ARMul_State * state, unsigned type,
+				 ARMword instr);
+extern unsigned xscale_cp15_read_reg (ARMul_State * state, unsigned reg,
+				      ARMword * data);
+extern unsigned xscale_cp15_write_reg (ARMul_State * state, unsigned reg,
+				       ARMword data);
+extern unsigned xscale_cp15_cp_access_allowed (ARMul_State * state, unsigned reg,
+					unsigned cpnum);
+
+/* Dummy Co-processors.  */
+
+static unsigned
+NoCoPro3R (ARMul_State * state,
+	   unsigned a, ARMword b)
+{
+	return ARMul_CANT;
+}
+
+static unsigned
+NoCoPro4R (ARMul_State * state,
+	   unsigned a,
+	   ARMword b, ARMword c)
+{
+	return ARMul_CANT;
+}
+
+static unsigned
+NoCoPro4W (ARMul_State * state,
+	   unsigned a,
+	   ARMword b, ARMword * c)
+{
+	return ARMul_CANT;
+}
+
+static unsigned
+NoCoPro5R (ARMul_State * state,
+	   unsigned a,
+	   ARMword b, 
+	   ARMword c, ARMword d)
+{
+	return ARMul_CANT;
+}
+
+static unsigned
+NoCoPro5W (ARMul_State * state,
+	   unsigned a,
+	   ARMword b,
+	   ARMword * c, ARMword * d )
+{
+	return ARMul_CANT;
+}
+
+/* The XScale Co-processors.  */
+
+/* Coprocessor 15:  System Control.  */
+static void write_cp14_reg (unsigned, ARMword);
+static ARMword read_cp14_reg (unsigned);
+
+/* There are two sets of registers for copro 15.
+   One set is available when opcode_2 is 0 and
+   the other set when opcode_2 >= 1.  */
+static ARMword XScale_cp15_opcode_2_is_0_Regs[16];
+static ARMword XScale_cp15_opcode_2_is_not_0_Regs[16];
+/* There are also a set of breakpoint registers
+   which are accessed via CRm instead of opcode_2.  */
+static ARMword XScale_cp15_DBR1;
+static ARMword XScale_cp15_DBCON;
+static ARMword XScale_cp15_IBCR0;
+static ARMword XScale_cp15_IBCR1;
+
+static unsigned
+XScale_cp15_init (ARMul_State * state)
+{
+	int i;
+
+	for (i = 16; i--;) {
+		XScale_cp15_opcode_2_is_0_Regs[i] = 0;
+		XScale_cp15_opcode_2_is_not_0_Regs[i] = 0;
+	}
+
+	/* Initialise the processor ID.  */
+	//chy 2003-03-24, is same as cpu id in skyeye_options.c
+	//XScale_cp15_opcode_2_is_0_Regs[0] = 0x69052000;
+	XScale_cp15_opcode_2_is_0_Regs[0] = 0x69050000;
+
+	/* Initialise the cache type.  */
+	XScale_cp15_opcode_2_is_not_0_Regs[0] = 0x0B1AA1AA;
+
+	/* Initialise the ARM Control Register.  */
+	XScale_cp15_opcode_2_is_0_Regs[1] = 0x00000078;
+
+	return No_exp;
+}
+
+/* Check an access to a register.  */
+
+static unsigned
+check_cp15_access (ARMul_State * state,
+		   unsigned reg,
+		   unsigned CRm, unsigned opcode_1, unsigned opcode_2)
+{
+	/* Do not allow access to these register in USER mode.  */
+	//chy 2006-02-16 , should not consider system mode, don't conside 26bit mode
+	if (state->Mode == USER26MODE || state->Mode == USER32MODE )
+		return ARMul_CANT;
+
+	/* Opcode_1should be zero.  */
+	if (opcode_1 != 0)
+		return ARMul_CANT;
+
+	/* Different register have different access requirements.  */
+	switch (reg) {
+	case 0:
+	case 1:
+		/* CRm must be 0.  Opcode_2 can be anything.  */
+		if (CRm != 0)
+			return ARMul_CANT;
+		break;
+	case 2:
+	case 3:
+		/* CRm must be 0.  Opcode_2 must be zero.  */
+		if ((CRm != 0) || (opcode_2 != 0))
+			return ARMul_CANT;
+		break;
+	case 4:
+		/* Access not allowed.  */
+		return ARMul_CANT;
+	case 5:
+	case 6:
+		/* Opcode_2 must be zero.  CRm must be 0.  */
+		if ((CRm != 0) || (opcode_2 != 0))
+			return ARMul_CANT;
+		break;
+	case 7:
+		/* Permissable combinations:
+		   Opcode_2  CRm
+		   0       5
+		   0       6
+		   0       7
+		   1       5
+		   1       6
+		   1      10
+		   4      10
+		   5       2
+		   6       5  */
+		switch (opcode_2) {
+		default:
+			return ARMul_CANT;
+		case 6:
+			if (CRm != 5)
+				return ARMul_CANT;
+			break;
+		case 5:
+			if (CRm != 2)
+				return ARMul_CANT;
+			break;
+		case 4:
+			if (CRm != 10)
+				return ARMul_CANT;
+			break;
+		case 1:
+			if ((CRm != 5) && (CRm != 6) && (CRm != 10))
+				return ARMul_CANT;
+			break;
+		case 0:
+			if ((CRm < 5) || (CRm > 7))
+				return ARMul_CANT;
+			break;
+		}
+		break;
+
+	case 8:
+		/* Permissable combinations:
+		   Opcode_2  CRm
+		   0       5
+		   0       6
+		   0       7
+		   1       5
+		   1       6  */
+		if (opcode_2 > 1)
+			return ARMul_CANT;
+		if ((CRm < 5) || (CRm > 7))
+			return ARMul_CANT;
+		if (opcode_2 == 1 && CRm == 7)
+			return ARMul_CANT;
+		break;
+	case 9:
+		/* Opcode_2 must be zero or one.  CRm must be 1 or 2.  */
+		if (((CRm != 0) && (CRm != 1))
+		    || ((opcode_2 != 1) && (opcode_2 != 2)))
+			return ARMul_CANT;
+		break;
+	case 10:
+		/* Opcode_2 must be zero or one.  CRm must be 4 or 8.  */
+		if (((CRm != 0) && (CRm != 1))
+		    || ((opcode_2 != 4) && (opcode_2 != 8)))
+			return ARMul_CANT;
+		break;
+	case 11:
+		/* Access not allowed.  */
+		return ARMul_CANT;
+	case 12:
+		/* Access not allowed.  */
+		return ARMul_CANT;
+	case 13:
+		/* Opcode_2 must be zero.  CRm must be 0.  */
+		if ((CRm != 0) || (opcode_2 != 0))
+			return ARMul_CANT;
+		break;
+	case 14:
+		/* Opcode_2 must be 0.  CRm must be 0, 3, 4, 8 or 9.  */
+		if (opcode_2 != 0)
+			return ARMul_CANT;
+
+		if ((CRm != 0) && (CRm != 3) && (CRm != 4) && (CRm != 8)
+		    && (CRm != 9))
+			return ARMul_CANT;
+		break;
+	case 15:
+		/* Opcode_2 must be zero.  CRm must be 1.  */
+		if ((CRm != 1) || (opcode_2 != 0))
+			return ARMul_CANT;
+		break;
+	default:
+		/* Should never happen.  */
+		return ARMul_CANT;
+	}
+
+	return ARMul_DONE;
+}
+
+/* Coprocessor 13:  Interrupt Controller and Bus Controller.  */
+
+/* There are two sets of registers for copro 13.
+   One set (of three registers) is available when CRm is 0
+   and the other set (of six registers) when CRm is 1.  */
+
+static ARMword XScale_cp13_CR0_Regs[16];
+static ARMword XScale_cp13_CR1_Regs[16];
+
+static unsigned
+XScale_cp13_init (ARMul_State * state)
+{
+	int i;
+
+	for (i = 16; i--;) {
+		XScale_cp13_CR0_Regs[i] = 0;
+		XScale_cp13_CR1_Regs[i] = 0;
+	}
+
+	return No_exp;
+}
+
+/* Check an access to a register.  */
+
+static unsigned
+check_cp13_access (ARMul_State * state,
+		   unsigned reg,
+		   unsigned CRm, unsigned opcode_1, unsigned opcode_2)
+{
+	/* Do not allow access to these registers in USER mode.  */
+	//chy 2006-02-16 , should not consider system mode, don't conside 26bit mode
+	if (state->Mode == USER26MODE || state->Mode == USER32MODE )
+		return ARMul_CANT;
+
+	/* The opcodes should be zero.  */
+	if ((opcode_1 != 0) || (opcode_2 != 0))
+		return ARMul_CANT;
+
+	/* Do not allow access to these register if bit
+	   13 of coprocessor 15's register 15 is zero.  */
+	if (!CP_ACCESS_ALLOWED (state, 13))
+		return ARMul_CANT;
+
+	/* Registers 0, 4 and 8 are defined when CRm == 0.
+	   Registers 0, 1, 4, 5, 6, 7, 8 are defined when CRm == 1.
+	   For all other CRm values undefined behaviour results.  */
+	if (CRm == 0) {
+		if (reg == 0 || reg == 4 || reg == 8)
+			return ARMul_DONE;
+	}
+	else if (CRm == 1) {
+		if (reg == 0 || reg == 1 || (reg >= 4 && reg <= 8))
+			return ARMul_DONE;
+	}
+
+	return ARMul_CANT;
+}
+
+/* Coprocessor 14:  Performance Monitoring,  Clock and Power management,
+   Software Debug.  */
+
+static ARMword XScale_cp14_Regs[16];
+
+static unsigned
+XScale_cp14_init (ARMul_State * state)
+{
+	int i;
+
+	for (i = 16; i--;)
+		XScale_cp14_Regs[i] = 0;
+
+	return No_exp;
+}
+
+/* Check an access to a register.  */
+
+static unsigned
+check_cp14_access (ARMul_State * state,
+		   unsigned reg,
+		   unsigned CRm, unsigned opcode1, unsigned opcode2)
+{
+	/* Not allowed to access these register in USER mode.  */
+	//chy 2006-02-16 , should not consider system mode, don't conside 26bit mode
+	if (state->Mode == USER26MODE || state->Mode == USER32MODE )
+		return ARMul_CANT;
+
+	/* CRm should be zero.  */
+	if (CRm != 0)
+		return ARMul_CANT;
+
+	/* OPcodes should be zero.  */
+	if (opcode1 != 0 || opcode2 != 0)
+		return ARMul_CANT;
+
+	/* Accessing registers 4 or 5 has unpredicatable results.  */
+	if (reg >= 4 && reg <= 5)
+		return ARMul_CANT;
+
+	return ARMul_DONE;
+}
+
+/* Here's ARMulator's MMU definition.  A few things to note:
+   1) It has eight registers, but only two are defined.
+   2) You can only access its registers with MCR and MRC.
+   3) MMU Register 0 (ID) returns 0x41440110
+   4) Register 1 only has 4 bits defined.  Bits 0 to 3 are unused, bit 4
+      controls 32/26 bit program space, bit 5 controls 32/26 bit data space,
+      bit 6 controls late abort timimg and bit 7 controls big/little endian.  */
+
+static ARMword MMUReg[8];
+
+static unsigned
+MMUInit (ARMul_State * state)
+{
+/* 2004-05-09 chy
+-------------------------------------------------------------
+read ARM Architecture Reference Manual
+2.6.5 Data Abort
+There are three Abort Model in ARM arch.
+
+Early Abort Model: used in some ARMv3 and earlier implementations. In this
+model, base register wirteback occurred for LDC,LDM,STC,STM instructions, and
+the base register was unchanged for all other instructions. (oldest)
+
+Base Restored Abort Model: If a Data Abort occurs in an instruction which
+specifies base register writeback, the value in the base register is
+unchanged. (strongarm, xscale)
+
+Base Updated Abort Model: If a Data Abort occurs in an instruction which
+specifies base register writeback, the base register writeback still occurs.
+(arm720T)
+
+read PART B
+chap2 The System Control Coprocessor  CP15
+2.4 Register1:control register
+L(bit 6): in some ARMv3 and earlier implementations, the abort model of the
+processor could be configured:
+0=early Abort Model Selected(now obsolete)
+1=Late Abort Model selceted(same as Base Updated Abort Model)
+
+on later processors, this bit reads as 1 and ignores writes.
+-------------------------------------------------------------
+So, if lateabtSig=1, then it means Late Abort Model(Base Updated Abort Model)
+    if lateabtSig=0, then it means Base Restored Abort Model
+because the ARMs which skyeye simulates are all belonged to  ARMv4,
+so I think MMUReg[1]'s bit 6 should always be 1
+
+*/
+
+	MMUReg[1] = state->prog32Sig << 4 |
+		state->data32Sig << 5 | 1 << 6 | state->bigendSig << 7;
+	//state->data32Sig << 5 | state->lateabtSig << 6 | state->bigendSig << 7;
+
+
+	NOTICE_LOG(ARM11, "ARMul_ConsolePrint: MMU present");
+
+	return TRUE;
+}
+
+static unsigned
+MMUMRC (ARMul_State * state, unsigned type,
+	ARMword instr, ARMword * value)
+{
+	mmu_mrc (state, instr, value);
+	return (ARMul_DONE);
+}
+
+static unsigned
+MMUMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value)
+{
+	mmu_mcr (state, instr, value);
+	return (ARMul_DONE);
+}
+
+/* What follows is the Validation Suite Coprocessor.  It uses two
+   co-processor numbers (4 and 5) and has the follwing functionality.
+   Sixteen registers.  Both co-processor nuimbers can be used in an MCR
+   and MRC to access these registers.  CP 4 can LDC and STC to and from
+   the registers.  CP 4 and CP 5 CDP 0 will busy wait for the number of
+   cycles specified by a CP register.  CP 5 CDP 1 issues a FIQ after a
+   number of cycles (specified in a CP register), CDP 2 issues an IRQW
+   in the same way, CDP 3 and 4 turn of the FIQ and IRQ source, and CDP 5
+   stores a 32 bit time value in a CP register (actually it's the total
+   number of N, S, I, C and F cyles).  */
+
+static ARMword ValReg[16];
+
+static unsigned
+ValLDC (ARMul_State * state,
+	unsigned type, ARMword instr, ARMword data)
+{
+	static unsigned words;
+
+	if (type != ARMul_DATA)
+		words = 0;
+	else {
+		ValReg[BITS (12, 15)] = data;
+
+		if (BIT (22))
+			/* It's a long access, get two words.  */
+			if (words++ != 4)
+				return ARMul_INC;
+	}
+
+	return ARMul_DONE;
+}
+
+static unsigned
+ValSTC (ARMul_State * state,
+	unsigned type, ARMword instr, ARMword * data)
+{
+	static unsigned words;
+
+	if (type != ARMul_DATA)
+		words = 0;
+	else {
+		*data = ValReg[BITS (12, 15)];
+
+		if (BIT (22))
+			/* It's a long access, get two words.  */
+			if (words++ != 4)
+				return ARMul_INC;
+	}
+
+	return ARMul_DONE;
+}
+
+static unsigned
+ValMRC (ARMul_State * state,
+	unsigned type, ARMword instr, ARMword * value)
+{
+	*value = ValReg[BITS (16, 19)];
+
+	return ARMul_DONE;
+}
+
+static unsigned
+ValMCR (ARMul_State * state,
+	unsigned type, ARMword instr, ARMword value)
+{
+	ValReg[BITS (16, 19)] = value;
+
+	return ARMul_DONE;
+}
+
+static unsigned
+ValCDP (ARMul_State * state, unsigned type, ARMword instr)
+{
+	static unsigned int finish = 0;
+
+	if (BITS (20, 23) != 0)
+		return ARMul_CANT;
+
+	if (type == ARMul_FIRST) {
+		ARMword howlong;
+
+		howlong = ValReg[BITS (0, 3)];
+
+		/* First cycle of a busy wait.  */
+		finish = ARMul_Time (state) + howlong;
+
+		return howlong == 0 ? ARMul_DONE : ARMul_BUSY;
+	}
+	else if (type == ARMul_BUSY) {
+		if (ARMul_Time (state) >= finish)
+			return ARMul_DONE;
+		else
+			return ARMul_BUSY;
+	}
+
+	return ARMul_CANT;
+}
+
+static unsigned
+DoAFIQ (ARMul_State * state)
+{
+	state->NfiqSig = LOW;
+	return 0;
+}
+
+static unsigned
+DoAIRQ (ARMul_State * state)
+{
+	state->NirqSig = LOW;
+	return 0;
+}
+
+static unsigned
+IntCDP (ARMul_State * state, unsigned type, ARMword instr)
+{
+	static unsigned int finish;
+	ARMword howlong;
+
+	howlong = ValReg[BITS (0, 3)];
+
+	switch ((int) BITS (20, 23)) {
+	case 0:
+		if (type == ARMul_FIRST) {
+			/* First cycle of a busy wait.  */
+			finish = ARMul_Time (state) + howlong;
+
+			return howlong == 0 ? ARMul_DONE : ARMul_BUSY;
+		}
+		else if (type == ARMul_BUSY) {
+			if (ARMul_Time (state) >= finish)
+				return ARMul_DONE;
+			else
+				return ARMul_BUSY;
+		}
+		return ARMul_DONE;
+
+	case 1:
+		if (howlong == 0)
+			ARMul_Abort (state, ARMul_FIQV);
+		else
+			ARMul_ScheduleEvent (state, howlong, DoAFIQ);
+		return ARMul_DONE;
+
+	case 2:
+		if (howlong == 0)
+			ARMul_Abort (state, ARMul_IRQV);
+		else
+			ARMul_ScheduleEvent (state, howlong, DoAIRQ);
+		return ARMul_DONE;
+
+	case 3:
+		state->NfiqSig = HIGH;
+		return ARMul_DONE;
+
+	case 4:
+		state->NirqSig = HIGH;
+		return ARMul_DONE;
+
+	case 5:
+		ValReg[BITS (0, 3)] = ARMul_Time (state);
+		return ARMul_DONE;
+	}
+
+	return ARMul_CANT;
+}
+
+/* Install co-processor instruction handlers in this routine.  */
+
+unsigned
+ARMul_CoProInit (ARMul_State * state)
+{
+	unsigned int i;
+
+	/* Initialise tham all first.  */
+	for (i = 0; i < 16; i++)
+		ARMul_CoProDetach (state, i);
+
+	/* Install CoPro Instruction handlers here.
+	   The format is:
+	   ARMul_CoProAttach (state, CP Number, Init routine, Exit routine
+	   LDC routine, STC routine, MRC routine, MCR routine,
+	   CDP routine, Read Reg routine, Write Reg routine).  */
+	if (state->is_ep9312) {
+		ARMul_CoProAttach (state, 4, NULL, NULL, DSPLDC4, DSPSTC4,
+				   DSPMRC4, DSPMCR4, NULL, NULL, DSPCDP4, NULL, NULL);
+		ARMul_CoProAttach (state, 5, NULL, NULL, DSPLDC5, DSPSTC5,
+				   DSPMRC5, DSPMCR5, NULL, NULL, DSPCDP5, NULL, NULL);
+		ARMul_CoProAttach (state, 6, NULL, NULL, NULL, NULL,
+				   DSPMRC6, DSPMCR6, NULL, NULL, DSPCDP6, NULL, NULL);
+	}
+	else {
+		ARMul_CoProAttach (state, 4, NULL, NULL, ValLDC, ValSTC,
+				   ValMRC, ValMCR, NULL, NULL, ValCDP, NULL, NULL);
+
+		ARMul_CoProAttach (state, 5, NULL, NULL, NULL, NULL,
+				   ValMRC, ValMCR, NULL, NULL, IntCDP, NULL, NULL);
+	}
+
+	if (state->is_XScale) {
+		//chy 2005-09-19, for PXA27x's CP6
+		if (state->is_pxa27x) {
+			ARMul_CoProAttach (state, 6, NULL, NULL,
+					   NULL, NULL, xscale_cp6_mrc,
+					   NULL, NULL, NULL, NULL, NULL, NULL);
+		}
+		//chy 2005-09-19 end------------- 
+		ARMul_CoProAttach (state, 13, xscale_cp13_init,
+				   xscale_cp13_exit, xscale_cp13_ldc,
+				   xscale_cp13_stc, xscale_cp13_mrc,
+				   xscale_cp13_mcr, NULL, NULL, xscale_cp13_cdp,
+				   xscale_cp13_read_reg,
+				   xscale_cp13_write_reg);
+
+		ARMul_CoProAttach (state, 14, xscale_cp14_init,
+				   xscale_cp14_exit, xscale_cp14_ldc,
+				   xscale_cp14_stc, xscale_cp14_mrc,
+				   xscale_cp14_mcr, NULL, NULL, xscale_cp14_cdp,
+				   xscale_cp14_read_reg,
+				   xscale_cp14_write_reg);
+		//chy: 2003-08-24.
+		ARMul_CoProAttach (state, 15, xscale_cp15_init,
+				   xscale_cp15_exit, xscale_cp15_ldc,
+				   xscale_cp15_stc, xscale_cp15_mrc,
+				   xscale_cp15_mcr, NULL, NULL, xscale_cp15_cdp,
+				   xscale_cp15_read_reg,
+				   xscale_cp15_write_reg);
+	}
+	else if (state->is_v6) {
+		ARMul_CoProAttach (state, 10, VFPInit, NULL, VFPLDC, VFPSTC,
+				   VFPMRC, VFPMCR, VFPMRRC, VFPMCRR, VFPCDP, NULL, NULL);
+		ARMul_CoProAttach (state, 11, VFPInit, NULL, VFPLDC, VFPSTC,
+				   VFPMRC, VFPMCR, VFPMRRC, VFPMCRR, VFPCDP, NULL, NULL);
+		
+		ARMul_CoProAttach (state, 15, MMUInit, NULL, NULL, NULL,
+				   MMUMRC, MMUMCR, NULL, NULL, NULL, NULL, NULL);
+	}
+	else {			//all except xscale
+		ARMul_CoProAttach (state, 15, MMUInit, NULL, NULL, NULL,
+				   //                  MMUMRC, MMUMCR, NULL, MMURead, MMUWrite);
+				   MMUMRC, MMUMCR, NULL, NULL, NULL, NULL, NULL);
+	}
+//chy 2003-09-03 do it in future!!!!????
+#if 0
+	if (state->is_iWMMXt) {
+		ARMul_CoProAttach (state, 0, NULL, NULL, IwmmxtLDC, IwmmxtSTC,
+				   NULL, NULL, IwmmxtCDP, NULL, NULL);
+
+		ARMul_CoProAttach (state, 1, NULL, NULL, NULL, NULL,
+				   IwmmxtMRC, IwmmxtMCR, IwmmxtCDP, NULL,
+				   NULL);
+	}
+#endif
+	//-----------------------------------------------------------------------------
+	//chy 2004-05-25, found the user/system code visit CP 1,2, so I add below code.
+	ARMul_CoProAttach (state, 1, NULL, NULL, NULL, NULL,
+			   ValMRC, ValMCR, NULL, NULL, NULL, NULL, NULL);
+	ARMul_CoProAttach (state, 2, NULL, NULL, ValLDC, ValSTC,
+			   NULL, NULL, NULL, NULL, NULL, NULL, NULL);
+	//------------------------------------------------------------------------------
+	/* No handlers below here.  */
+
+	/* Call all the initialisation routines.  */
+	for (i = 0; i < 16; i++)
+		if (state->CPInit[i])
+			(state->CPInit[i]) (state);
+
+	return TRUE;
+}
+
+/* Install co-processor finalisation routines in this routine.  */
+
+void
+ARMul_CoProExit (ARMul_State * state)
+{
+	register unsigned i;
+
+	for (i = 0; i < 16; i++)
+		if (state->CPExit[i])
+			(state->CPExit[i]) (state);
+
+	for (i = 0; i < 16; i++)	/* Detach all handlers.  */
+		ARMul_CoProDetach (state, i);
+}
+
+/* Routines to hook Co-processors into ARMulator.  */
+
+void
+ARMul_CoProAttach (ARMul_State * state,
+		   unsigned number,
+		   ARMul_CPInits * init,
+		   ARMul_CPExits * exit,
+		   ARMul_LDCs * ldc,
+		   ARMul_STCs * stc,
+		   ARMul_MRCs * mrc,
+		   ARMul_MCRs * mcr,
+		   ARMul_MRRCs * mrrc,
+		   ARMul_MCRRs * mcrr,
+		   ARMul_CDPs * cdp,
+		   ARMul_CPReads * read, ARMul_CPWrites * write)
+{
+	if (init != NULL)
+		state->CPInit[number] = init;
+	if (exit != NULL)
+		state->CPExit[number] = exit;
+	if (ldc != NULL)
+		state->LDC[number] = ldc;
+	if (stc != NULL)
+		state->STC[number] = stc;
+	if (mrc != NULL)
+		state->MRC[number] = mrc;
+	if (mcr != NULL)
+		state->MCR[number] = mcr;
+	if (mrrc != NULL)
+		state->MRRC[number] = mrrc;
+	if (mcrr != NULL)
+		state->MCRR[number] = mcrr;
+	if (cdp != NULL)
+		state->CDP[number] = cdp;
+	if (read != NULL)
+		state->CPRead[number] = read;
+	if (write != NULL)
+		state->CPWrite[number] = write;
+}
+
+void
+ARMul_CoProDetach (ARMul_State * state, unsigned number)
+{
+	ARMul_CoProAttach (state, number, NULL, NULL,
+			   NoCoPro4R, NoCoPro4W, NoCoPro4W, NoCoPro4R,
+			   NoCoPro5W, NoCoPro5R, NoCoPro3R, NULL, NULL);
+
+	state->CPInit[number] = NULL;
+	state->CPExit[number] = NULL;
+	state->CPRead[number] = NULL;
+	state->CPWrite[number] = NULL;
+}
+
+//chy 2003-09-03:below funs just replace the old ones
+
+/* Set the XScale FSR and FAR registers.  */
+
+void
+XScale_set_fsr_far (ARMul_State * state, ARMword fsr, ARMword _far)
+{
+	//if (!state->is_XScale || (read_cp14_reg (10) & (1UL << 31)) == 0)
+	if (!state->is_XScale)
+		return;
+	//assume opcode2=0 crm =0
+	xscale_cp15_write_reg (state, 5, fsr);
+	xscale_cp15_write_reg (state, 6, _far);
+}
+
+//chy 2003-09-03 seems 0 is CANT, 1 is DONE ????
+int
+XScale_debug_moe (ARMul_State * state, int moe)
+{
+	//chy 2003-09-03 , W/R CP14 reg, now it's no use ????
+	printf ("SKYEYE: XScale_debug_moe called !!!!\n");
+	return 1;
+}

src/core/arm/interpreter/armemu.cpp

@@ -23,17 +23,6 @@
 #include "armemu.h"
 #include "armos.h"
 
-void
-XScale_set_fsr_far(ARMul_State * state, ARMword fsr, ARMword _far)
-{
-    _dbg_assert_msg_(ARM11, false, "ImplementMe: XScale_set_fsr_far!");
-    //if (!state->is_XScale || (read_cp14_reg(10) & (1UL << 31)) == 0)
-    //    return;
-    //
-    //write_cp15_reg(state, 5, 0, 0, fsr);
-    //write_cp15_reg(state, 6, 0, 0, _far);
-}
-
 #define ARMul_Debug(x,y,z) 0 // Disabling this /bunnei
 
 //#include "skyeye_callback.h"

src/core/arm/interpreter/armemu.h

@@ -17,9 +17,9 @@
 #ifndef __ARMEMU_H__
 #define __ARMEMU_H__
 
-#include "common/common.h"
+
-#include "armdefs.h"
+#include "core/arm/interpreter/skyeye_defs.h"
-//#include "skyeye.h"
+#include "core/arm/interpreter/armdefs.h"
 
 extern ARMword isize;
 
@@ -73,9 +73,7 @@ extern ARMword isize;
 #define ASSIGNT(res) state->TFlag = res
 #define INSN_SIZE (TFLAG ? 2 : 4)
 #else
-#define TBIT (1L << 5)
 #define INSN_SIZE 4
-#define TFLAG 0
 #endif
 
 /*add armv6 CPSR  feature*/
@@ -166,6 +164,7 @@ extern ARMword isize;
 #define PCWRAP(pc) ((pc) & R15PCBITS)
 #endif
 
+#define PC (state->Reg[15] & PCMASK)
 #define R15CCINTMODE (state->Reg[15] & (CCBITS | R15INTBITS | R15MODEBITS))
 #define R15INT (state->Reg[15] & R15INTBITS)
 #define R15INTPC (state->Reg[15] & (R15INTBITS | R15PCBITS))
@@ -180,11 +179,11 @@ extern ARMword isize;
 #define ER15INT (IFFLAGS << 26)
 #define EMODE (state->Mode)
 
-//#ifdef MODET
+#ifdef MODET
-//#define CPSR (ECC | EINT | EMODE | (TFLAG << 5))
+#define CPSR (ECC | EINT | EMODE | (TFLAG << 5))
-//#else
+#else
-//#define CPSR (ECC | EINT | EMODE)
+#define CPSR (ECC | EINT | EMODE)
-//#endif
+#endif
 
 #ifdef MODE32
 #define PATCHR15
@@ -240,12 +239,12 @@ extern ARMword isize;
     }									\
   while (0)
 
-//#ifndef MODE32
+#ifndef MODE32
 #define VECTORS 0x20
 #define LEGALADDR 0x03ffffff
 #define VECTORACCESS(address) (address < VECTORS && ARMul_MODE26BIT && state->prog32Sig)
 #define ADDREXCEPT(address)   (address > LEGALADDR && !state->data32Sig)
-//#endif
+#endif
 
 #define INTERNALABORT(address)			\
   do						\
@@ -420,12 +419,10 @@ extern ARMword isize;
      || (! (STATE)->is_XScale)				\
      || (read_cp15_reg (15, 0, 1) & (1 << (CP))))
 */
-//#define CP_ACCESS_ALLOWED(STATE, CP)			\
+#define CP_ACCESS_ALLOWED(STATE, CP)			\
-//	(((CP) >= 14)					\
+    (   ((CP) >= 14)					\
-//	|| (!(STATE)->is_XScale)				\
+     || (! (STATE)->is_XScale)				\
-//	|| (xscale_cp15_cp_access_allowed(STATE, 15, CP)))
+     || (xscale_cp15_cp_access_allowed(STATE,15,CP)))
-
-#define CP_ACCESS_ALLOWED(STATE, CP) false // Disabled coprocessor shit /bunnei
 
 /* Macro to rotate n right by b bits.  */
 #define ROTATER(n, b) (((n) >> (b)) | ((n) << (32 - (b))))
@@ -517,7 +514,7 @@ tdstate;
  * out-of-updated with the newer ISA.
  * -- Michael.Kang
  ********************************************************************************/
-#define UNDEF_WARNING ERROR_LOG(ARM11, "undefined or unpredicted behavior for arm instruction.\n");
+#define UNDEF_WARNING WARN_LOG(ARM11, "undefined or unpredicted behavior for arm instruction.\n");
 
 /* Macros to scrutinize instructions.  */
 #define UNDEF_Test UNDEF_WARNING

src/core/arm/interpreter/arminit.cpp

@@ -23,8 +23,8 @@
 
 #include <math.h>
 
-#include "armdefs.h"
+#include "core/arm/interpreter/armdefs.h"
-#include "armemu.h"
+#include "core/arm/interpreter/armemu.h"
 
 /***************************************************************************\
 *                 Definitions for the emulator architecture                 *
@@ -271,7 +271,7 @@ below line sould be in skyeye_mach_XXX.c 's XXX_mach_init function
 
 	/* Only initialse the coprocessor support once we
 	   know what kind of chip we are dealing with.  */
-	//ARMul_CoProInit (state); Commented out /bunnei
+	ARMul_CoProInit (state);
 
 }
 
@@ -318,7 +318,7 @@ ARMul_Reset (ARMul_State * state)
 	state->NumFcycles = 0;
 
 	//fprintf(stderr,"armul_reset 3: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  
-	//mmu_reset (state); Commented out /bunnei
+	mmu_reset (state);
 	//fprintf(stderr,"armul_reset 4: state->  Cpsr 0x%x, Mode %d\n",state->Cpsr,state->Mode);  
 
 	//mem_reset (state); /* move to memory/ram.c */

src/core/arm/interpreter/armmmu.h

@@ -172,18 +172,18 @@ typedef struct mmu_ops_s
 } mmu_ops_t;
 
 
-#include "core/arm/mmu/tlb.h"
+#include "core/arm/interpreter/mmu/tlb.h"
-#include "core/arm/mmu/rb.h"
+#include "core/arm/interpreter/mmu/rb.h"
-#include "core/arm/mmu/wb.h"
+#include "core/arm/interpreter/mmu/wb.h"
-#include "core/arm/mmu/cache.h"
+#include "core/arm/interpreter/mmu/cache.h"
 
 /*special process mmu.h*/
-//#include "core/arm/mmu/sa_mmu.h"
+#include "core/arm/interpreter/mmu/sa_mmu.h"
-//#include "core/arm/mmu/arm7100_mmu.h"
+//#include "core/arm/interpreter/mmu/arm7100_mmu.h"
-//#include "core/arm/mmu/arm920t_mmu.h"
+//#include "core/arm/interpreter/mmu/arm920t_mmu.h"
-//#include "core/arm/mmu/arm926ejs_mmu.h"
+//#include "core/arm/interpreter/mmu/arm926ejs_mmu.h"
-#include "core/arm/mmu/arm1176jzf_s_mmu.h"
+#include "core/arm/interpreter/mmu/arm1176jzf_s_mmu.h"
-//#include "core/arm/mmu/cortex_a9_mmu.h"
+//#include "core/arm/interpreter/mmu/cortex_a9_mmu.h"
 
 typedef struct mmu_state_t
 {
@@ -213,13 +213,13 @@ typedef struct mmu_state_t
 	ARMword copro_access;	// 15
 
 	mmu_ops_t ops;
-	//union
+	union
-	//{
+	{
-		//sa_mmu_t sa_mmu;
+		sa_mmu_t sa_mmu;
 		//arm7100_mmu_t arm7100_mmu;
 		//arm920t_mmu_t arm920t_mmu;
 		//arm926ejs_mmu_t arm926ejs_mmu;
-	//} u;
+	} u;
 } mmu_state_t;
 
 int mmu_init (ARMul_State * state);

src/core/arm/interpreter/armsupp.cpp

@@ -15,11 +15,9 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
 
-#include "armdefs.h"
+#include "core/arm/interpreter/armdefs.h"
-#include "armemu.h"
+#include "core/arm/interpreter/armemu.h"
-
+#include "core/arm/interpreter/skyeye_defs.h"
-//#include "ansidecl.h"
-#include "skyeye_defs.h"
 #include "core/hle/coprocessor.h"
 #include "core/arm/disassembler/arm_disasm.h"
 
@@ -127,8 +125,7 @@ ARMul_GetCPSR (ARMul_State * state)
 {
 	//chy 2003-08-20: below is from gdb20030716, maybe isn't suitable for system simulator
 	//return (CPSR | state->Cpsr); for gdb20030716
-    // NOTE(bunnei): Changed this from [now] commented out macro "CPSR"
+	return (CPSR);		//had be tested in old skyeye with gdb5.0-5.3
-    return ((ECC | EINT | EMODE | (TFLAG << 5)));	//had be tested in old skyeye with gdb5.0-5.3
 }
 
 /* This routine sets the value of the CPSR.  */
@@ -500,8 +497,8 @@ ARMul_LDC (ARMul_State * state, ARMword instr, ARMword address)
 		return;
 	}
 
-	if (ADDREXCEPT (address))
+	//if (ADDREXCEPT (address))
-		INTERNALABORT (address);
+	//	INTERNALABORT (address);
 
 	cpab = (state->LDC[CPNum]) (state, ARMul_FIRST, instr, 0);
 	while (cpab == ARMul_BUSY) {
@@ -594,8 +591,8 @@ ARMul_STC (ARMul_State * state, ARMword instr, ARMword address)
 		return;
 	}
 
-	if (ADDREXCEPT (address) || VECTORACCESS (address))
+	//if (ADDREXCEPT (address) || VECTORACCESS (address))
-		INTERNALABORT (address);
+	//	INTERNALABORT (address);
 
 	cpab = (state->STC[CPNum]) (state, ARMul_FIRST, instr, &data);
 	while (cpab == ARMul_BUSY) {
@@ -661,40 +658,39 @@ ARMul_STC (ARMul_State * state, ARMword instr, ARMword address)
 void
 ARMul_MCR (ARMul_State * state, ARMword instr, ARMword source)
 {
-    HLE::CallMCR(instr, source);
+	unsigned cpab;
-	//unsigned cpab;
 
-	////printf("SKYEYE ARMul_MCR, CPnum is %x, source %x\n",CPNum, source);
+	//printf("SKYEYE ARMul_MCR, CPnum is %x, source %x\n",CPNum, source);
-	//if (!CP_ACCESS_ALLOWED (state, CPNum)) {
+	if (!CP_ACCESS_ALLOWED (state, CPNum)) {
-	//	//chy 2004-07-19 should fix in the future ????!!!!
+		//chy 2004-07-19 should fix in the future ????!!!!
-	//	//printf("SKYEYE ARMul_MCR, ACCESS_not ALLOWed, UndefinedInstr  CPnum is %x, source %x\n",CPNum, source);
+		//printf("SKYEYE ARMul_MCR, ACCESS_not ALLOWed, UndefinedInstr  CPnum is %x, source %x\n",CPNum, source);
-	//	ARMul_UndefInstr (state, instr);
+		ARMul_UndefInstr (state, instr);
-	//	return;
+		return;
-	//}
+	}
 
-	//cpab = (state->MCR[CPNum]) (state, ARMul_FIRST, instr, source);
+	cpab = (state->MCR[CPNum]) (state, ARMul_FIRST, instr, source);
 
-	//while (cpab == ARMul_BUSY) {
+	while (cpab == ARMul_BUSY) {
-	//	ARMul_Icycles (state, 1, 0);
+		ARMul_Icycles (state, 1, 0);
 
-	//	if (IntPending (state)) {
+		if (IntPending (state)) {
-	//		cpab = (state->MCR[CPNum]) (state, ARMul_INTERRUPT,
+			cpab = (state->MCR[CPNum]) (state, ARMul_INTERRUPT,
-	//					    instr, 0);
+						    instr, 0);
-	//		return;
+			return;
-	//	}
+		}
-	//	else
+		else
-	//		cpab = (state->MCR[CPNum]) (state, ARMul_BUSY, instr,
+			cpab = (state->MCR[CPNum]) (state, ARMul_BUSY, instr,
-	//					    source);
+						    source);
-	//}
+	}
 
-	//if (cpab == ARMul_CANT) {
+	if (cpab == ARMul_CANT) {
-	//	printf ("SKYEYE ARMul_MCR, CANT, UndefinedInstr %x CPnum is %x, source %x\n", instr, CPNum, source);
+		printf ("SKYEYE ARMul_MCR, CANT, UndefinedInstr %x CPnum is %x, source %x\n", instr, CPNum, source);
-	//	ARMul_Abort (state, ARMul_UndefinedInstrV);
+		ARMul_Abort (state, ARMul_UndefinedInstrV);
-	//}
+	}
-	//else {
+	else {
-	//	BUSUSEDINCPCN;
+		BUSUSEDINCPCN;
-	//	ARMul_Ccycles (state, 1, 0);
+		ARMul_Ccycles (state, 1, 0);
-	//}
+	}
 }
 
 /* This function does the Busy-Waiting for an MCRR instruction.  */
@@ -742,37 +738,41 @@ ARMul_MRC (ARMul_State * state, ARMword instr)
 
 	ARMword result = HLE::CallMRC(instr);
 
-	////printf("SKYEYE ARMul_MRC, CPnum is %x, instr %x\n",CPNum, instr);
+	if (result != -1) {
-	//if (!CP_ACCESS_ALLOWED (state, CPNum)) {
+		return result;
-	//	//chy 2004-07-19 should fix in the future????!!!!
+	}
-	//	//printf("SKYEYE ARMul_MRC,NOT ALLOWed UndefInstr  CPnum is %x, instr %x\n",CPNum, instr);
-	//	ARMul_UndefInstr (state, instr);
-	//	return -1;
-	//}
 
-	//cpab = (state->MRC[CPNum]) (state, ARMul_FIRST, instr, &result);
+	//printf("SKYEYE ARMul_MRC, CPnum is %x, instr %x\n",CPNum, instr);
-	//while (cpab == ARMul_BUSY) {
+	if (!CP_ACCESS_ALLOWED (state, CPNum)) {
-	//	ARMul_Icycles (state, 1, 0);
+		//chy 2004-07-19 should fix in the future????!!!!
-	//	if (IntPending (state)) {
+		//printf("SKYEYE ARMul_MRC,NOT ALLOWed UndefInstr  CPnum is %x, instr %x\n",CPNum, instr);
-	//		cpab = (state->MRC[CPNum]) (state, ARMul_INTERRUPT,
+		ARMul_UndefInstr (state, instr);
-	//					    instr, 0);
+		return -1;
-	//		return (0);
+	}
-	//	}
+
-	//	else
+	cpab = (state->MRC[CPNum]) (state, ARMul_FIRST, instr, &result);
-	//		cpab = (state->MRC[CPNum]) (state, ARMul_BUSY, instr,
+	while (cpab == ARMul_BUSY) {
-	//					    &result);
+		ARMul_Icycles (state, 1, 0);
-	//}
+		if (IntPending (state)) {
-	//if (cpab == ARMul_CANT) {
+			cpab = (state->MRC[CPNum]) (state, ARMul_INTERRUPT,
-	//	printf ("SKYEYE ARMul_MRC,CANT UndefInstr  CPnum is %x, instr %x\n", CPNum, instr);
+						    instr, 0);
-	//	ARMul_Abort (state, ARMul_UndefinedInstrV);
+			return (0);
-	//	/* Parent will destroy the flags otherwise.  */
+		}
-	//	result = ECC;
+		else
-	//}
+			cpab = (state->MRC[CPNum]) (state, ARMul_BUSY, instr,
-	//else {
+						    &result);
-	//	BUSUSEDINCPCN;
+	}
-	//	ARMul_Ccycles (state, 1, 0);
+	if (cpab == ARMul_CANT) {
-	//	ARMul_Icycles (state, 1, 0);
+		printf ("SKYEYE ARMul_MRC,CANT UndefInstr  CPnum is %x, instr %x\n", CPNum, instr);
-	//}
+		ARMul_Abort (state, ARMul_UndefinedInstrV);
+		/* Parent will destroy the flags otherwise.  */
+		result = ECC;
+	}
+	else {
+		BUSUSEDINCPCN;
+		ARMul_Ccycles (state, 1, 0);
+		ARMul_Icycles (state, 1, 0);
+	}
 
 	return result;
 }
@@ -907,9 +907,7 @@ ARMul_ScheduleEvent (ARMul_State * state, unsigned int delay,
 		state->Now = ARMul_Time (state);
 	when = (state->Now + delay) % EVENTLISTSIZE;
 	event = (struct EventNode *) malloc (sizeof (struct EventNode));
-
 	_dbg_assert_msg_(ARM11, event, "SKYEYE:ARMul_ScheduleEvent: malloc event error\n");
-
 	event->func = what;
 	event->next = *(state->EventPtr + when);
 	*(state->EventPtr + when) = event;

src/core/arm/interpreter/mmu/cache.cpp

@@ -0,0 +1,370 @@
+#include "core/arm/interpreter/armdefs.h"
+
+/* mmu cache init
+ *
+ * @cache_t :cache_t to init
+ * @width	:cache line width in byte
+ * @way		:way of each cache set
+ * @set		:cache set num
+ *
+ * $ -1: error
+ * 	 0: sucess
+ */
+int
+mmu_cache_init (cache_s * cache_t, int width, int way, int set, int w_mode)
+{
+	int i, j;
+	cache_set_t *sets;
+	cache_line_t *lines;
+
+	/*alloc cache set */
+	sets = NULL;
+	lines = NULL;
+	//fprintf(stderr, "mmu_cache_init: mallloc beg size %d,sets 0x%x\n", sizeof(cache_set_t) * set,sets);
+	//exit(-1);
+	sets = (cache_set_t *) malloc (sizeof (cache_set_t) * set);
+	if (sets == NULL) {
+		ERROR_LOG(ARM11, "set malloc size %d\n", sizeof (cache_set_t) * set);
+		goto sets_error;
+	}
+	//fprintf(stderr, "mmu_cache_init: mallloc end sets 0x%x\n", sets);
+	cache_t->sets = sets;
+
+	/*init cache set */
+	for (i = 0; i < set; i++) {
+		/*alloc cache line */
+		lines = (cache_line_t *) malloc (sizeof (cache_line_t) * way);
+		if (lines == NULL) {
+			ERROR_LOG(ARM11, "line malloc size %d\n",
+				 sizeof (cache_line_t) * way);
+			goto lines_error;
+		}
+		/*init cache line */
+		for (j = 0; j < way; j++) {
+			lines[j].tag = 0;	//invalid
+			lines[j].data = (ARMword *) malloc (width);
+			if (lines[j].data == NULL) {
+				ERROR_LOG(ARM11, "data alloc size %d\n", width);
+				goto data_error;
+			}
+		}
+
+		sets[i].lines = lines;
+		sets[i].cycle = 0;
+
+	}
+	cache_t->width = width;
+	cache_t->set = set;
+	cache_t->way = way;
+	cache_t->w_mode = w_mode;
+	return 0;
+
+      data_error:
+	/*free data */
+	while (j-- > 0)
+		free (lines[j].data);
+	/*free data error line */
+	free (lines);
+      lines_error:
+	/*free lines already alloced */
+	while (i-- > 0) {
+		for (j = 0; j < way; j++)
+			free (sets[i].lines[j].data);
+		free (sets[i].lines);
+	}
+	/*free sets */
+	free (sets);
+      sets_error:
+	return -1;
+};
+
+/* free a cache_t's inner data, the ptr self is not freed,
+ * when needed do like below:
+ * 		mmu_cache_exit(cache);
+ * 		free(cache_t);
+ *
+ * @cache_t : the cache_t to free
+ */
+
+void
+mmu_cache_exit (cache_s * cache_t)
+{
+	int i, j;
+	cache_set_t *sets, *set;
+	cache_line_t *lines, *line;
+
+	/*free all set */
+	sets = cache_t->sets;
+	for (set = sets, i = 0; i < cache_t->set; i++, set++) {
+		/*free all line */
+		lines = set->lines;
+		for (line = lines, j = 0; j < cache_t->way; j++, line++)
+			free (line->data);
+		free (lines);
+	}
+	free (sets);
+}
+
+/* mmu cache search
+ *
+ * @state	:ARMul_State
+ * @cache_t	:cache_t to search
+ * @va		:virtual address
+ *
+ * $	NULL:	no cache match
+ * 		cache	:cache matched
+ */
+cache_line_t *
+mmu_cache_search (ARMul_State * state, cache_s * cache_t, ARMword va)
+{
+	int i;
+	int set = va_cache_set (va, cache_t);
+	ARMword tag = va_cache_align (va, cache_t);
+	cache_line_t *cache;
+
+	cache_set_t *cache_set = cache_t->sets + set;
+	for (i = 0, cache = cache_set->lines; i < cache_t->way; i++, cache++) {
+		if ((cache->tag & TAG_VALID_FLAG)
+		    && (tag == va_cache_align (cache->tag, cache_t)))
+			return cache;
+	}
+	return NULL;
+}
+
+/* mmu cache search by set/index
+ *
+ * @state	:ARMul_State
+ * @cache_t	:cache_t to search
+ * @index	:set/index value. 
+ *
+ * $	NULL:	no cache match
+ * 		cache	:cache matched
+ */
+cache_line_t *
+mmu_cache_search_by_index (ARMul_State * state, cache_s * cache_t,
+			   ARMword index)
+{
+	int way = cache_t->way;
+	int set_v = index_cache_set (index, cache_t);
+	int i = 0, index_v = 0;
+	cache_set_t *set;
+
+	while ((way >>= 1) >= 1)
+		i++;
+	index_v = index >> (32 - i);
+	set = cache_t->sets + set_v;
+
+	return set->lines + index_v;
+}
+
+
+/* mmu cache alloc
+ *
+ * @state :ARMul_State
+ * @cache_t	:cache_t to alloc from
+ * @va		:virtual address that require cache alloc, need not cache aligned
+ * @pa		:physical address of va
+ *
+ * $	cache_alloced, always alloc OK
+ */
+cache_line_t *
+mmu_cache_alloc (ARMul_State * state, cache_s * cache_t, ARMword va,
+		 ARMword pa)
+{
+	cache_line_t *cache;
+	cache_set_t *set;
+	int i;
+
+	va = va_cache_align (va, cache_t);
+	pa = va_cache_align (pa, cache_t);
+
+	set = &cache_t->sets[va_cache_set (va, cache_t)];
+
+	/*robin-round */
+	cache = &set->lines[set->cycle++];
+	if (set->cycle == cache_t->way)
+		set->cycle = 0;
+
+	if (cache_t->w_mode == CACHE_WRITE_BACK) {
+		ARMword t;
+
+		/*if cache valid, try to write back */
+		if (cache->tag & TAG_VALID_FLAG) {
+			mmu_cache_write_back (state, cache_t, cache);
+		}
+		/*read in cache_line */
+		t = pa;
+		for (i = 0; i < (cache_t->width >> WORD_SHT);
+		     i++, t += WORD_SIZE) {
+			//cache->data[i] = mem_read_word (state, t);
+			bus_read(32, t, &cache->data[i]);
+		}
+	}
+	/*store tag and pa */
+	cache->tag = va | TAG_VALID_FLAG;
+	cache->pa = pa;
+
+	return cache;
+};
+
+/* mmu_cache_write_back write cache data to memory
+ * @state
+ * @cache_t :cache_t of the cache line
+ * @cache : cache line
+ */
+void
+mmu_cache_write_back (ARMul_State * state, cache_s * cache_t,
+		      cache_line_t * cache)
+{
+	ARMword pa = cache->pa;
+	int nw = cache_t->width >> WORD_SHT;
+	ARMword *data = cache->data;
+	int i;
+	int t0, t1, t2;
+
+	if ((cache->tag & 1) == 0)
+		return;
+
+	switch (cache->
+		tag & ~1 & (TAG_FIRST_HALF_DIRTY | TAG_LAST_HALF_DIRTY)) {
+	case 0:
+		return;
+	case TAG_FIRST_HALF_DIRTY:
+		nw /= 2;
+		break;
+	case TAG_LAST_HALF_DIRTY:
+		nw /= 2;
+		pa += nw << WORD_SHT;
+		data += nw;
+		break;
+	case TAG_FIRST_HALF_DIRTY | TAG_LAST_HALF_DIRTY:
+		break;
+	}
+	for (i = 0; i < nw; i++, data++, pa += WORD_SIZE)
+		//mem_write_word (state, pa, *data);
+		bus_write(32, pa, *data);
+
+	cache->tag &= ~(TAG_FIRST_HALF_DIRTY | TAG_LAST_HALF_DIRTY);
+};
+
+
+/* mmu_cache_clean: clean a cache of va in cache_t
+ *
+ * @state	:ARMul_State
+ * @cache_t	:cache_t to clean
+ * @va		:virtaul address
+ */
+void
+mmu_cache_clean (ARMul_State * state, cache_s * cache_t, ARMword va)
+{
+	cache_line_t *cache;
+
+	cache = mmu_cache_search (state, cache_t, va);
+	if (cache)
+		mmu_cache_write_back (state, cache_t, cache);
+}
+
+/* mmu_cache_clean_by_index: clean a cache by set/index format value
+ *
+ * @state	:ARMul_State
+ * @cache_t	:cache_t to clean
+ * @va		:set/index format value
+ */
+void
+mmu_cache_clean_by_index (ARMul_State * state, cache_s * cache_t,
+			  ARMword index)
+{
+	cache_line_t *cache;
+
+	cache = mmu_cache_search_by_index (state, cache_t, index);
+	if (cache)
+		mmu_cache_write_back (state, cache_t, cache);
+}
+
+/* mmu_cache_invalidate : invalidate a cache of va
+ *
+ * @state	:ARMul_State
+ * @cache_t	:cache_t to invalid
+ * @va		:virt_addr to invalid
+ */
+void
+mmu_cache_invalidate (ARMul_State * state, cache_s * cache_t, ARMword va)
+{
+	cache_line_t *cache;
+
+	cache = mmu_cache_search (state, cache_t, va);
+	if (cache) {
+		mmu_cache_write_back (state, cache_t, cache);
+		cache->tag = 0;
+	}
+}
+
+/* mmu_cache_invalidate_by_index : invalidate a cache by index format
+ *
+ * @state	:ARMul_State
+ * @cache_t	:cache_t to invalid
+ * @index	:set/index data
+ */
+void
+mmu_cache_invalidate_by_index (ARMul_State * state, cache_s * cache_t,
+			       ARMword index)
+{
+	cache_line_t *cache;
+
+	cache = mmu_cache_search_by_index (state, cache_t, index);
+	if (cache) {
+		mmu_cache_write_back (state, cache_t, cache);
+		cache->tag = 0;
+	}
+}
+
+/* mmu_cache_invalidate_all
+ *
+ * @state:
+ * @cache_t
+ * */
+void
+mmu_cache_invalidate_all (ARMul_State * state, cache_s * cache_t)
+{
+	int i, j;
+	cache_set_t *set;
+	cache_line_t *cache;
+
+	set = cache_t->sets;
+	for (i = 0; i < cache_t->set; i++, set++) {
+		cache = set->lines;
+		for (j = 0; j < cache_t->way; j++, cache++) {
+			mmu_cache_write_back (state, cache_t, cache);
+			cache->tag = 0;
+		}
+	}
+};
+
+void
+mmu_cache_soft_flush (ARMul_State * state, cache_s * cache_t, ARMword pa)
+{
+	ARMword set, way;
+	cache_line_t *cache;
+	pa = (pa / cache_t->width);
+	way = pa & (cache_t->way - 1);
+	set = (pa / cache_t->way) & (cache_t->set - 1);
+	cache = &cache_t->sets[set].lines[way];
+
+	mmu_cache_write_back (state, cache_t, cache);
+	cache->tag = 0;
+}
+
+cache_line_t*  mmu_cache_dirty_cache(ARMul_State *state,cache_s *cache){
+	int i;
+	int j;
+	cache_line_t *cache_line = NULL;
+	cache_set_t *cache_set = cache->sets;
+	int sets = cache->set;
+	for (i = 0; i < sets; i++){
+		for(j = 0,cache_line = &cache_set[i].lines[0]; j < cache->way; j++,cache_line++){
+			if((cache_line->tag & TAG_FIRST_HALF_DIRTY) || (cache_line->tag & TAG_LAST_HALF_DIRTY))
+				return cache_line;
+		}
+	}
+	return NULL;
+}

src/core/arm/interpreter/mmu/rb.cpp

@@ -0,0 +1,126 @@
+#include "core/arm/interpreter/armdefs.h"
+
+/*chy 2004-06-06, fix bug found by wenye@cs.ucsb.edu*/
+ARMword rb_masks[] = {
+	0x0,			//RB_INVALID
+	4,			//RB_1
+	16,			//RB_4
+	32,			//RB_8
+};
+
+/*mmu_rb_init
+ * @rb_t	:rb_t to init
+ * @num		:number of entry
+ * */
+int
+mmu_rb_init (rb_s * rb_t, int num)
+{
+	int i;
+	rb_entry_t *entrys;
+
+	entrys = (rb_entry_t *) malloc (sizeof (*entrys) * num);
+	if (entrys == NULL) {
+		printf ("SKYEYE:mmu_rb_init malloc error\n");
+		return -1;
+	}
+	for (i = 0; i < num; i++) {
+		entrys[i].type = RB_INVALID;
+		entrys[i].fault = NO_FAULT;
+	}
+
+	rb_t->entrys = entrys;
+	rb_t->num = num;
+	return 0;
+}
+
+/*mmu_rb_exit*/
+void
+mmu_rb_exit (rb_s * rb_t)
+{
+	free (rb_t->entrys);
+};
+
+/*mmu_rb_search
+ * @rb_t	:rb_t to serach
+ * @va		:va address to math
+ *
+ * $	NULL :not match
+ * 		NO-NULL:
+ * */
+rb_entry_t *
+mmu_rb_search (rb_s * rb_t, ARMword va)
+{
+	int i;
+	rb_entry_t *rb = rb_t->entrys;
+
+	DEBUG_LOG(ARM11, "va = %x\n", va);
+	for (i = 0; i < rb_t->num; i++, rb++) {
+		//2004-06-06 lyh  bug from wenye@cs.ucsb.edu
+		if (rb->type) {
+			if ((va >= rb->va)
+			    && (va < (rb->va + rb_masks[rb->type])))
+				return rb;
+		}
+	}
+	return NULL;
+};
+
+void
+mmu_rb_invalidate_entry (rb_s * rb_t, int i)
+{
+	rb_t->entrys[i].type = RB_INVALID;
+}
+
+void
+mmu_rb_invalidate_all (rb_s * rb_t)
+{
+	int i;
+
+	for (i = 0; i < rb_t->num; i++)
+		mmu_rb_invalidate_entry (rb_t, i);
+};
+
+void
+mmu_rb_load (ARMul_State * state, rb_s * rb_t, int i_rb, int type, ARMword va)
+{
+	rb_entry_t *rb;
+	int i;
+	ARMword max_start, min_end;
+	fault_t fault;
+	tlb_entry_t *tlb;
+
+	/*align va according to type */
+	va &= ~(rb_masks[type] - 1);
+	/*invalidate all RB match [va, va + rb_masks[type]] */
+	for (rb = rb_t->entrys, i = 0; i < rb_t->num; i++, rb++) {
+		if (rb->type) {
+			max_start = max (va, rb->va);
+			min_end =
+				min (va + rb_masks[type],
+				     rb->va + rb_masks[rb->type]);
+			if (max_start < min_end)
+				rb->type = RB_INVALID;
+		}
+	}
+	/*load word */
+	rb = &rb_t->entrys[i_rb];
+	rb->type = type;
+	fault = translate (state, va, D_TLB (), &tlb);
+	if (fault) {
+		rb->fault = fault;
+		return;
+	}
+	fault = check_access (state, va, tlb, 1);
+	if (fault) {
+		rb->fault = fault;
+		return;
+	}
+
+	rb->fault = NO_FAULT;
+	va = tlb_va_to_pa (tlb, va);
+	//2004-06-06 lyh  bug from wenye@cs.ucsb.edu
+	for (i = 0; i < (rb_masks[type] / 4); i++, va += WORD_SIZE) {
+		//rb->data[i] = mem_read_word (state, va);
+		bus_read(32, va, &rb->data[i]);
+	};
+}

src/core/arm/interpreter/mmu/sa_mmu.cpp

@@ -0,0 +1,864 @@
+/*
+    armmmu.c - Memory Management Unit emulation.
+    ARMulator extensions for the ARM7100 family.
+    Copyright (C) 1999  Ben Williamson
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#include <assert.h>
+#include <string.h>
+
+#include "core/arm/interpreter/armdefs.h"
+
+/**
+ *  The interface of read data from bus
+ */
+int bus_read(short size, int addr, uint32_t * value) {
+    ERROR_LOG(ARM11, "unimplemented bus_read");
+    return 0;
+}
+
+/**
+ * The interface of write data from bus
+ */
+int bus_write(short size, int addr, uint32_t value) {
+    ERROR_LOG(ARM11, "unimplemented bus_write");
+    return 0;
+}
+
+
+typedef struct sa_mmu_desc_s
+{
+	int i_tlb;
+	cache_desc_t i_cache;
+
+	int d_tlb;
+	cache_desc_t main_d_cache;
+	cache_desc_t mini_d_cache;
+	int rb;
+	wb_desc_t wb;
+} sa_mmu_desc_t;
+
+static sa_mmu_desc_t sa11xx_mmu_desc = {
+	32,
+	{32, 32, 16, CACHE_WRITE_BACK},
+
+	32,
+	{32, 32, 8, CACHE_WRITE_BACK},
+	{32, 2, 8, CACHE_WRITE_BACK},
+	4,
+	//{8, 4},  for word size 
+	{8, 16},		//for byte size,   chy 2003-07-11
+};
+
+static fault_t sa_mmu_write (ARMul_State * state, ARMword va, ARMword data,
+			     ARMword datatype);
+static fault_t sa_mmu_read (ARMul_State * state, ARMword va, ARMword * data,
+			    ARMword datatype);
+static fault_t update_cache (ARMul_State * state, ARMword va, ARMword data,
+			     ARMword datatype, cache_line_t * cache,
+			     cache_s * cache_t, ARMword real_va);
+
+void
+mmu_wb_write_bytes (ARMul_State * state, wb_s * wb_t, ARMword pa,
+		    ARMbyte * data, int n);
+int
+sa_mmu_init (ARMul_State * state)
+{
+	sa_mmu_desc_t *desc;
+	cache_desc_t *c_desc;
+
+	state->mmu.control = 0x70;
+	state->mmu.translation_table_base = 0xDEADC0DE;
+	state->mmu.domain_access_control = 0xDEADC0DE;
+	state->mmu.fault_status = 0;
+	state->mmu.fault_address = 0;
+	state->mmu.process_id = 0;
+
+	desc = &sa11xx_mmu_desc;
+	if (mmu_tlb_init (I_TLB (), desc->i_tlb)) {
+		ERROR_LOG(ARM11, "i_tlb init %d\n", -1);
+		goto i_tlb_init_error;
+	}
+
+	c_desc = &desc->i_cache;
+	if (mmu_cache_init (I_CACHE (), c_desc->width, c_desc->way,
+			    c_desc->set, c_desc->w_mode)) {
+		ERROR_LOG(ARM11, "i_cache init %d\n", -1);
+		goto i_cache_init_error;
+	}
+
+	if (mmu_tlb_init (D_TLB (), desc->d_tlb)) {
+		ERROR_LOG(ARM11, "d_tlb init %d\n", -1);
+		goto d_tlb_init_error;
+	}
+
+	c_desc = &desc->main_d_cache;
+	if (mmu_cache_init (MAIN_D_CACHE (), c_desc->width, c_desc->way,
+			    c_desc->set, c_desc->w_mode)) {
+		ERROR_LOG(ARM11, "main_d_cache init %d\n", -1);
+		goto main_d_cache_init_error;
+	}
+
+	c_desc = &desc->mini_d_cache;
+	if (mmu_cache_init (MINI_D_CACHE (), c_desc->width, c_desc->way,
+			    c_desc->set, c_desc->w_mode)) {
+		ERROR_LOG(ARM11, "mini_d_cache init %d\n", -1);
+		goto mini_d_cache_init_error;
+	}
+
+	if (mmu_wb_init (WB (), desc->wb.num, desc->wb.nb)) {
+		ERROR_LOG(ARM11, "wb init %d\n", -1);
+		goto wb_init_error;
+	}
+
+	if (mmu_rb_init (RB (), desc->rb)) {
+		ERROR_LOG(ARM11, "rb init %d\n", -1);
+		goto rb_init_error;
+	}
+	return 0;
+
+      rb_init_error:
+	mmu_wb_exit (WB ());
+      wb_init_error:
+	mmu_cache_exit (MINI_D_CACHE ());
+      mini_d_cache_init_error:
+	mmu_cache_exit (MAIN_D_CACHE ());
+      main_d_cache_init_error:
+	mmu_tlb_exit (D_TLB ());
+      d_tlb_init_error:
+	mmu_cache_exit (I_CACHE ());
+      i_cache_init_error:
+	mmu_tlb_exit (I_TLB ());
+      i_tlb_init_error:
+	return -1;
+}
+
+void
+sa_mmu_exit (ARMul_State * state)
+{
+	mmu_rb_exit (RB ());
+	mmu_wb_exit (WB ());
+	mmu_cache_exit (MINI_D_CACHE ());
+	mmu_cache_exit (MAIN_D_CACHE ());
+	mmu_tlb_exit (D_TLB ());
+	mmu_cache_exit (I_CACHE ());
+	mmu_tlb_exit (I_TLB ());
+};
+
+
+static fault_t
+sa_mmu_load_instr (ARMul_State * state, ARMword va, ARMword * instr)
+{
+	fault_t fault;
+	tlb_entry_t *tlb;
+	cache_line_t *cache;
+	int c;			//cache bit
+	ARMword pa;		//physical addr
+
+	static int debug_count = 0;	//used for debug
+
+	DEBUG_LOG(ARM11, "va = %x\n", va);
+
+	va = mmu_pid_va_map (va);
+	if (MMU_Enabled) {
+		/*align check */
+		if ((va & (WORD_SIZE - 1)) && MMU_Aligned) {
+			DEBUG_LOG(ARM11, "align\n");
+			return ALIGNMENT_FAULT;
+		}
+		else
+			va &= ~(WORD_SIZE - 1);
+
+		/*translate tlb */
+		fault = translate (state, va, I_TLB (), &tlb);
+		if (fault) {
+			DEBUG_LOG(ARM11, "translate\n");
+			return fault;
+		}
+
+		/*check access */
+		fault = check_access (state, va, tlb, 1);
+		if (fault) {
+			DEBUG_LOG(ARM11, "check_fault\n");
+			return fault;
+		}
+	}
+
+	/*search cache no matter MMU enabled/disabled */
+	cache = mmu_cache_search (state, I_CACHE (), va);
+	if (cache) {
+		*instr = cache->data[va_cache_index (va, I_CACHE ())];
+		return NO_FAULT;
+	}
+
+	/*if MMU disabled or C flag is set alloc cache */
+	if (MMU_Disabled) {
+		c = 1;
+		pa = va;
+	}
+	else {
+		c = tlb_c_flag (tlb);
+		pa = tlb_va_to_pa (tlb, va);
+	}
+
+	if (c) {
+		int index;
+
+		debug_count++;
+		cache = mmu_cache_alloc (state, I_CACHE (), va, pa);
+		index = va_cache_index (va, I_CACHE ());
+		*instr = cache->data[va_cache_index (va, I_CACHE ())];
+	}
+	else
+		//*instr = mem_read_word (state, pa);
+		bus_read(32, pa, instr);
+
+	return NO_FAULT;
+};
+
+
+
+static fault_t
+sa_mmu_read_byte (ARMul_State * state, ARMword virt_addr, ARMword * data)
+{
+	//ARMword temp,offset;
+	fault_t fault;
+	fault = sa_mmu_read (state, virt_addr, data, ARM_BYTE_TYPE);
+	return fault;
+}
+
+static fault_t
+sa_mmu_read_halfword (ARMul_State * state, ARMword virt_addr, ARMword * data)
+{
+	//ARMword temp,offset;
+	fault_t fault;
+	fault = sa_mmu_read (state, virt_addr, data, ARM_HALFWORD_TYPE);
+	return fault;
+}
+
+static fault_t
+sa_mmu_read_word (ARMul_State * state, ARMword virt_addr, ARMword * data)
+{
+	return sa_mmu_read (state, virt_addr, data, ARM_WORD_TYPE);
+}
+
+
+
+
+static fault_t
+sa_mmu_read (ARMul_State * state, ARMword va, ARMword * data,
+	     ARMword datatype)
+{
+	fault_t fault;
+	rb_entry_t *rb;
+	tlb_entry_t *tlb;
+	cache_line_t *cache;
+	ARMword pa, real_va, temp, offset;
+
+	DEBUG_LOG(ARM11, "va = %x\n", va);
+
+	va = mmu_pid_va_map (va);
+	real_va = va;
+	/*if MMU disabled, memory_read */
+	if (MMU_Disabled) {
+		//*data = mem_read_word(state, va);
+		if (datatype == ARM_BYTE_TYPE)
+			//*data = mem_read_byte (state, va);
+			bus_read(8, va, data);
+		else if (datatype == ARM_HALFWORD_TYPE)
+			//*data = mem_read_halfword (state, va);
+			bus_read(16, va, data);
+		else if (datatype == ARM_WORD_TYPE)
+			//*data = mem_read_word (state, va);
+			bus_read(32, va, data);
+		else {
+			printf ("SKYEYE:1 sa_mmu_read error: unknown data type %d\n", datatype);
+			// skyeye_exit (-1);
+		}
+
+		return NO_FAULT;
+	}
+
+	/*align check */
+	if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) ||
+	    ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) {
+		DEBUG_LOG(ARM11, "align\n");
+		return ALIGNMENT_FAULT;
+	}			// else
+
+	va &= ~(WORD_SIZE - 1);
+
+	/*translate va to tlb */
+	fault = translate (state, va, D_TLB (), &tlb);
+	if (fault) {
+		DEBUG_LOG(ARM11, "translate\n");
+		return fault;
+	}
+	/*check access permission */
+	fault = check_access (state, va, tlb, 1);
+	if (fault)
+		return fault;
+	/*search in read buffer */
+	rb = mmu_rb_search (RB (), va);
+	if (rb) {
+		if (rb->fault)
+			return rb->fault;
+		*data = rb->data[(va & (rb_masks[rb->type] - 1)) >> WORD_SHT];
+		goto datatrans;
+		//return 0;
+	};
+	/*search main cache */
+	cache = mmu_cache_search (state, MAIN_D_CACHE (), va);
+	if (cache) {
+		*data = cache->data[va_cache_index (va, MAIN_D_CACHE ())];
+		goto datatrans;
+		//return 0;
+	}
+	/*search mini cache */
+	cache = mmu_cache_search (state, MINI_D_CACHE (), va);
+	if (cache) {
+		*data = cache->data[va_cache_index (va, MINI_D_CACHE ())];
+		goto datatrans;
+		//return 0;
+	}
+
+	/*get phy_addr */
+	pa = tlb_va_to_pa (tlb, va);
+	if ((pa >= 0xe0000000) && (pa < 0xe8000000)) {
+		if (tlb_c_flag (tlb)) {
+			if (tlb_b_flag (tlb)) {
+				mmu_cache_soft_flush (state, MAIN_D_CACHE (),
+						      pa);
+			}
+			else {
+				mmu_cache_soft_flush (state, MINI_D_CACHE (),
+						      pa);
+			}
+		}
+		return NO_FAULT;
+	}
+
+	/*if Buffer, drain Write Buffer first */
+	if (tlb_b_flag (tlb))
+		mmu_wb_drain_all (state, WB ());
+
+	/*alloc cache or mem_read */
+	if (tlb_c_flag (tlb) && MMU_DCacheEnabled) {
+		cache_s *cache_t;
+
+		if (tlb_b_flag (tlb))
+			cache_t = MAIN_D_CACHE ();
+		else
+			cache_t = MINI_D_CACHE ();
+		cache = mmu_cache_alloc (state, cache_t, va, pa);
+		*data = cache->data[va_cache_index (va, cache_t)];
+	}
+	else {
+		//*data = mem_read_word(state, pa);
+		if (datatype == ARM_BYTE_TYPE)
+			//*data = mem_read_byte (state, pa | (real_va & 3));
+			bus_read(8, pa | (real_va & 3), data);
+		else if (datatype == ARM_HALFWORD_TYPE)
+			//*data = mem_read_halfword (state, pa | (real_va & 2));
+			bus_read(16, pa | (real_va & 2), data);
+		else if (datatype == ARM_WORD_TYPE)
+			//*data = mem_read_word (state, pa);
+			bus_read(32, pa, data);
+		else {
+			printf ("SKYEYE:2 sa_mmu_read error: unknown data type %d\n", datatype);
+			// skyeye_exit (-1);
+		}
+		return NO_FAULT;
+	}
+
+
+      datatrans:
+	if (datatype == ARM_HALFWORD_TYPE) {
+		temp = *data;
+		offset = (((ARMword) state->bigendSig * 2) ^ (real_va & 2)) << 3;	/* bit offset into the word */
+		*data = (temp >> offset) & 0xffff;
+	}
+	else if (datatype == ARM_BYTE_TYPE) {
+		temp = *data;
+		offset = (((ARMword) state->bigendSig * 3) ^ (real_va & 3)) << 3;	/* bit offset into the word */
+		*data = (temp >> offset & 0xffL);
+	}
+      end:
+	return NO_FAULT;
+}
+
+
+static fault_t
+sa_mmu_write_byte (ARMul_State * state, ARMword virt_addr, ARMword data)
+{
+	return sa_mmu_write (state, virt_addr, data, ARM_BYTE_TYPE);
+}
+
+static fault_t
+sa_mmu_write_halfword (ARMul_State * state, ARMword virt_addr, ARMword data)
+{
+	return sa_mmu_write (state, virt_addr, data, ARM_HALFWORD_TYPE);
+}
+
+static fault_t
+sa_mmu_write_word (ARMul_State * state, ARMword virt_addr, ARMword data)
+{
+	return sa_mmu_write (state, virt_addr, data, ARM_WORD_TYPE);
+}
+
+
+
+static fault_t
+sa_mmu_write (ARMul_State * state, ARMword va, ARMword data, ARMword datatype)
+{
+	tlb_entry_t *tlb;
+	cache_line_t *cache;
+	int b;
+	ARMword pa, real_va;
+	fault_t fault;
+
+	DEBUG_LOG(ARM11, "va = %x, val = %x\n", va, data);
+	va = mmu_pid_va_map (va);
+	real_va = va;
+
+	/*search instruction cache */
+	cache = mmu_cache_search (state, I_CACHE (), va);
+	if (cache) {
+		update_cache (state, va, data, datatype, cache, I_CACHE (),
+			      real_va);
+	}
+
+	if (MMU_Disabled) {
+		//mem_write_word(state, va, data);
+		if (datatype == ARM_BYTE_TYPE)
+			//mem_write_byte (state, va, data);
+			bus_write(8, va, data);
+		else if (datatype == ARM_HALFWORD_TYPE)
+			//mem_write_halfword (state, va, data);
+			bus_write(16, va, data);
+		else if (datatype == ARM_WORD_TYPE)
+			//mem_write_word (state, va, data);
+			bus_write(32, va, data);
+		else {
+			printf ("SKYEYE:1 sa_mmu_write error: unknown data type %d\n", datatype);
+			// skyeye_exit (-1);
+		}
+
+		return NO_FAULT;
+	}
+	/*align check */
+	//if ((va & (WORD_SIZE - 1)) && MMU_Aligned){
+	if (((va & 3) && (datatype == ARM_WORD_TYPE) && MMU_Aligned) ||
+	    ((va & 1) && (datatype == ARM_HALFWORD_TYPE) && MMU_Aligned)) {
+		DEBUG_LOG(ARM11, "align\n");
+		return ALIGNMENT_FAULT;
+	}			//else
+	va &= ~(WORD_SIZE - 1);
+	/*tlb translate */
+	fault = translate (state, va, D_TLB (), &tlb);
+	if (fault) {
+		DEBUG_LOG(ARM11, "translate\n");
+		return fault;
+	}
+	/*tlb check access */
+	fault = check_access (state, va, tlb, 0);
+	if (fault) {
+		DEBUG_LOG(ARM11, "check_access\n");
+		return fault;
+	}
+	/*search main cache */
+	cache = mmu_cache_search (state, MAIN_D_CACHE (), va);
+	if (cache) {
+		update_cache (state, va, data, datatype, cache,
+			      MAIN_D_CACHE (), real_va);
+	}
+	else {
+		/*search mini cache */
+		cache = mmu_cache_search (state, MINI_D_CACHE (), va);
+		if (cache) {
+			update_cache (state, va, data, datatype, cache,
+				      MINI_D_CACHE (), real_va);
+		}
+	}
+
+	if (!cache) {
+		b = tlb_b_flag (tlb);
+		pa = tlb_va_to_pa (tlb, va);
+		if (b) {
+			if (MMU_WBEnabled) {
+				if (datatype == ARM_WORD_TYPE)
+					mmu_wb_write_bytes (state, WB (), pa,
+							    (ARMbyte*)&data, 4);
+				else if (datatype == ARM_HALFWORD_TYPE)
+					mmu_wb_write_bytes (state, WB (),
+							    (pa |
+							     (real_va & 2)),
+							    (ARMbyte*)&data, 2);
+				else if (datatype == ARM_BYTE_TYPE)
+					mmu_wb_write_bytes (state, WB (),
+							    (pa |
+							     (real_va & 3)),
+							    (ARMbyte*)&data, 1);
+
+			}
+			else {
+				if (datatype == ARM_WORD_TYPE)
+					//mem_write_word (state, pa, data);
+					bus_write(32, pa, data);
+				else if (datatype == ARM_HALFWORD_TYPE)
+					/*
+					mem_write_halfword (state,
+							    (pa |
+							     (real_va & 2)),
+							    data);
+					*/
+					bus_write(16, pa | (real_va & 2), data);
+				else if (datatype == ARM_BYTE_TYPE)
+					/*
+					mem_write_byte (state,
+							(pa | (real_va & 3)),
+							data);
+					*/
+					bus_write(8, pa | (real_va & 3), data);
+			}
+		}
+		else {
+			mmu_wb_drain_all (state, WB ());
+
+			if (datatype == ARM_WORD_TYPE)
+				//mem_write_word (state, pa, data);
+				bus_write(32, pa, data);
+			else if (datatype == ARM_HALFWORD_TYPE)
+				/*
+					mem_write_halfword (state,
+						    (pa | (real_va & 2)),
+						    data);
+				*/
+				bus_write(16, pa | (real_va & 2), data);
+			else if (datatype == ARM_BYTE_TYPE)
+				/*
+				mem_write_byte (state, (pa | (real_va & 3)),
+						data);
+				*/
+				bus_write(8, pa | (real_va & 3), data);
+		}
+	}
+	return NO_FAULT;
+}
+
+static fault_t
+update_cache (ARMul_State * state, ARMword va, ARMword data, ARMword datatype,
+	      cache_line_t * cache, cache_s * cache_t, ARMword real_va)
+{
+	ARMword temp, offset;
+
+	ARMword index = va_cache_index (va, cache_t);
+
+	//cache->data[index] = data;
+
+	if (datatype == ARM_WORD_TYPE)
+		cache->data[index] = data;
+	else if (datatype == ARM_HALFWORD_TYPE) {
+		temp = cache->data[index];
+		offset = (((ARMword) state->bigendSig * 2) ^ (real_va & 2)) << 3;	/* bit offset into the word */
+		cache->data[index] =
+			(temp & ~(0xffffL << offset)) | ((data & 0xffffL) <<
+							 offset);
+	}
+	else if (datatype == ARM_BYTE_TYPE) {
+		temp = cache->data[index];
+		offset = (((ARMword) state->bigendSig * 3) ^ (real_va & 3)) << 3;	/* bit offset into the word */
+		cache->data[index] =
+			(temp & ~(0xffL << offset)) | ((data & 0xffL) <<
+						       offset);
+	}
+
+	if (index < (cache_t->width >> (WORD_SHT + 1)))
+		cache->tag |= TAG_FIRST_HALF_DIRTY;
+	else
+		cache->tag |= TAG_LAST_HALF_DIRTY;
+
+	return NO_FAULT;
+}
+
+ARMword
+sa_mmu_mrc (ARMul_State * state, ARMword instr, ARMword * value)
+{
+	mmu_regnum_t creg = (mmu_regnum_t)(BITS (16, 19) & 15);
+	ARMword data;
+
+	switch (creg) {
+	case MMU_ID:
+//              printf("mmu_mrc read ID     ");
+		data = 0x41007100;	/* v3 */
+		data = state->cpu->cpu_val;
+		break;
+	case MMU_CONTROL:
+//              printf("mmu_mrc read CONTROL");
+		data = state->mmu.control;
+		break;
+	case MMU_TRANSLATION_TABLE_BASE:
+//              printf("mmu_mrc read TTB    ");
+		data = state->mmu.translation_table_base;
+		break;
+	case MMU_DOMAIN_ACCESS_CONTROL:
+//              printf("mmu_mrc read DACR   ");
+		data = state->mmu.domain_access_control;
+		break;
+	case MMU_FAULT_STATUS:
+//              printf("mmu_mrc read FSR    ");
+		data = state->mmu.fault_status;
+		break;
+	case MMU_FAULT_ADDRESS:
+//              printf("mmu_mrc read FAR    ");
+		data = state->mmu.fault_address;
+		break;
+	case MMU_PID:
+		data = state->mmu.process_id;
+	default:
+		printf ("mmu_mrc read UNKNOWN - reg %d\n", creg);
+		data = 0;
+		break;
+	}
+//      printf("\t\t\t\t\tpc = 0x%08x\n", state->Reg[15]);
+	*value = data;
+	return data;
+}
+
+void
+sa_mmu_cache_ops (ARMul_State * state, ARMword instr, ARMword value)
+{
+	int CRm, OPC_2;
+
+	CRm = BITS (0, 3);
+	OPC_2 = BITS (5, 7);
+
+	if (OPC_2 == 0 && CRm == 7) {
+		mmu_cache_invalidate_all (state, I_CACHE ());
+		mmu_cache_invalidate_all (state, MAIN_D_CACHE ());
+		mmu_cache_invalidate_all (state, MINI_D_CACHE ());
+		return;
+	}
+
+	if (OPC_2 == 0 && CRm == 5) {
+		mmu_cache_invalidate_all (state, I_CACHE ());
+		return;
+	}
+
+	if (OPC_2 == 0 && CRm == 6) {
+		mmu_cache_invalidate_all (state, MAIN_D_CACHE ());
+		mmu_cache_invalidate_all (state, MINI_D_CACHE ());
+		return;
+	}
+
+	if (OPC_2 == 1 && CRm == 6) {
+		mmu_cache_invalidate (state, MAIN_D_CACHE (), value);
+		mmu_cache_invalidate (state, MINI_D_CACHE (), value);
+		return;
+	}
+
+	if (OPC_2 == 1 && CRm == 0xa) {
+		mmu_cache_clean (state, MAIN_D_CACHE (), value);
+		mmu_cache_clean (state, MINI_D_CACHE (), value);
+		return;
+	}
+
+	if (OPC_2 == 4 && CRm == 0xa) {
+		mmu_wb_drain_all (state, WB ());
+		return;
+	}
+	ERROR_LOG(ARM11, "Unknow OPC_2 = %x CRm = %x\n", OPC_2, CRm);
+}
+
+static void
+sa_mmu_tlb_ops (ARMul_State * state, ARMword instr, ARMword value)
+{
+	int CRm, OPC_2;
+
+	CRm = BITS (0, 3);
+	OPC_2 = BITS (5, 7);
+
+
+	if (OPC_2 == 0 && CRm == 0x7) {
+		mmu_tlb_invalidate_all (state, I_TLB ());
+		mmu_tlb_invalidate_all (state, D_TLB ());
+		return;
+	}
+
+	if (OPC_2 == 0 && CRm == 0x5) {
+		mmu_tlb_invalidate_all (state, I_TLB ());
+		return;
+	}
+
+	if (OPC_2 == 0 && CRm == 0x6) {
+		mmu_tlb_invalidate_all (state, D_TLB ());
+		return;
+	}
+
+	if (OPC_2 == 1 && CRm == 0x6) {
+		mmu_tlb_invalidate_entry (state, D_TLB (), value);
+		return;
+	}
+
+	ERROR_LOG(ARM11, "Unknow OPC_2 = %x CRm = %x\n", OPC_2, CRm);
+}
+
+static void
+sa_mmu_rb_ops (ARMul_State * state, ARMword instr, ARMword value)
+{
+	int CRm, OPC_2;
+
+	CRm = BITS (0, 3);
+	OPC_2 = BITS (5, 7);
+
+	if (OPC_2 == 0x0 && CRm == 0x0) {
+		mmu_rb_invalidate_all (RB ());
+		return;
+	}
+
+	if (OPC_2 == 0x2) {
+		int idx = CRm & 0x3;
+		int type = ((CRm >> 2) & 0x3) + 1;
+
+		if ((idx < 4) && (type < 4))
+			mmu_rb_load (state, RB (), idx, type, value);
+		return;
+	}
+
+	if ((OPC_2 == 1) && (CRm < 4)) {
+		mmu_rb_invalidate_entry (RB (), CRm);
+		return;
+	}
+
+	ERROR_LOG(ARM11, "Unknow OPC_2 = %x CRm = %x\n", OPC_2, CRm);
+}
+
+static ARMword
+sa_mmu_mcr (ARMul_State * state, ARMword instr, ARMword value)
+{
+	mmu_regnum_t creg = (mmu_regnum_t)(BITS (16, 19) & 15);
+	if (!strncmp (state->cpu->cpu_arch_name, "armv4", 5)) {
+		switch (creg) {
+		case MMU_CONTROL:
+//              printf("mmu_mcr wrote CONTROL      ");
+			state->mmu.control = (value | 0x70) & 0xFFFD;
+			break;
+		case MMU_TRANSLATION_TABLE_BASE:
+//              printf("mmu_mcr wrote TTB          ");
+			state->mmu.translation_table_base =
+				value & 0xFFFFC000;
+			break;
+		case MMU_DOMAIN_ACCESS_CONTROL:
+//              printf("mmu_mcr wrote DACR         ");
+			state->mmu.domain_access_control = value;
+			break;
+
+		case MMU_FAULT_STATUS:
+			state->mmu.fault_status = value & 0xFF;
+			break;
+		case MMU_FAULT_ADDRESS:
+			state->mmu.fault_address = value;
+			break;
+
+		case MMU_CACHE_OPS:
+			sa_mmu_cache_ops (state, instr, value);
+			break;
+		case MMU_TLB_OPS:
+			sa_mmu_tlb_ops (state, instr, value);
+			break;
+		case MMU_SA_RB_OPS:
+			sa_mmu_rb_ops (state, instr, value);
+			break;
+		case MMU_SA_DEBUG:
+			break;
+		case MMU_SA_CP15_R15:
+			break;
+		case MMU_PID:
+			//2004-06-06 lyh, bug provided by wen ye wenye@cs.ucsb.edu
+			state->mmu.process_id = value & 0x7e000000;
+			break;
+
+		default:
+			printf ("mmu_mcr wrote UNKNOWN - reg %d\n", creg);
+			break;
+		}
+	}
+    return 0;
+}
+
+//teawater add for arm2x86 2005.06.24-------------------------------------------
+static int
+sa_mmu_v2p_dbct (ARMul_State * state, ARMword virt_addr, ARMword * phys_addr)
+{
+	fault_t fault;
+	tlb_entry_t *tlb;
+
+	virt_addr = mmu_pid_va_map (virt_addr);
+	if (MMU_Enabled) {
+
+		/*align check */
+		if ((virt_addr & (WORD_SIZE - 1)) && MMU_Aligned) {
+			DEBUG_LOG(ARM11, "align\n");
+			return ALIGNMENT_FAULT;
+		}
+		else
+			virt_addr &= ~(WORD_SIZE - 1);
+
+		/*translate tlb */
+		fault = translate (state, virt_addr, I_TLB (), &tlb);
+		if (fault) {
+			DEBUG_LOG(ARM11, "translate\n");
+			return fault;
+		}
+
+		/*check access */
+		fault = check_access (state, virt_addr, tlb, 1);
+		if (fault) {
+			DEBUG_LOG(ARM11, "check_fault\n");
+			return fault;
+		}
+	}
+
+	if (MMU_Disabled) {
+		*phys_addr = virt_addr;
+	}
+	else {
+		*phys_addr = tlb_va_to_pa (tlb, virt_addr);
+	}
+
+	return (0);
+}
+
+//AJ2D--------------------------------------------------------------------------
+
+/*sa mmu_ops_t*/
+mmu_ops_t sa_mmu_ops = {
+	sa_mmu_init,
+	sa_mmu_exit,
+	sa_mmu_read_byte,
+	sa_mmu_write_byte,
+	sa_mmu_read_halfword,
+	sa_mmu_write_halfword,
+	sa_mmu_read_word,
+	sa_mmu_write_word,
+	sa_mmu_load_instr,
+	sa_mmu_mcr,
+	sa_mmu_mrc,
+//teawater add for arm2x86 2005.06.24-------------------------------------------
+	sa_mmu_v2p_dbct,
+//AJ2D--------------------------------------------------------------------------
+};

src/core/arm/interpreter/mmu/sa_mmu.h

@@ -0,0 +1,58 @@
+/*
+    sa_mmu.h - StrongARM Memory Management Unit emulation.
+    ARMulator extensions for SkyEye.
+	<lyhost@263.net>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#ifndef _SA_MMU_H_
+#define _SA_MMU_H_
+
+
+/**
+ *  The interface of read data from bus
+ */
+int bus_read(short size, int addr, uint32_t * value);
+
+/**
+ * The interface of write data from bus
+ */
+int bus_write(short size, int addr, uint32_t value);
+
+
+typedef struct sa_mmu_s
+{
+	tlb_s i_tlb;
+	cache_s i_cache;
+
+	tlb_s d_tlb;
+	cache_s main_d_cache;
+	cache_s mini_d_cache;
+	rb_s rb_t;
+	wb_s wb_t;
+} sa_mmu_t;
+
+#define I_TLB() (&state->mmu.u.sa_mmu.i_tlb)
+#define I_CACHE() (&state->mmu.u.sa_mmu.i_cache)
+
+#define D_TLB() (&state->mmu.u.sa_mmu.d_tlb)
+#define MAIN_D_CACHE() (&state->mmu.u.sa_mmu.main_d_cache)
+#define MINI_D_CACHE() (&state->mmu.u.sa_mmu.mini_d_cache)
+#define WB() (&state->mmu.u.sa_mmu.wb_t)
+#define RB() (&state->mmu.u.sa_mmu.rb_t)
+
+extern mmu_ops_t sa_mmu_ops;
+#endif /*_SA_MMU_H_*/

src/core/arm/interpreter/mmu/tlb.cpp

@@ -0,0 +1,307 @@
+#include <assert.h>
+
+#include "core/arm/interpreter/armdefs.h"
+
+ARMword tlb_masks[] = {
+	0x00000000,		/* TLB_INVALID */
+	0xFFFFF000,		/* TLB_SMALLPAGE */
+	0xFFFF0000,		/* TLB_LARGEPAGE */
+	0xFFF00000,		/* TLB_SECTION */
+	0xFFFFF000,		/*TLB_ESMALLPAGE, have TEX attirbute, only for XScale */
+	0xFFFFFC00		/* TLB_TINYPAGE */
+};
+
+/* This function encodes table 8-2 Interpreting AP bits,
+   returning non-zero if access is allowed. */
+static int
+check_perms (ARMul_State * state, int ap, int read)
+{
+	int s, r, user;
+
+	s = state->mmu.control & CONTROL_SYSTEM;
+	r = state->mmu.control & CONTROL_ROM;
+	//chy 2006-02-15 , should consider system mode, don't conside 26bit mode
+	user = (state->Mode == USER32MODE) || (state->Mode == USER26MODE) || (state->Mode == SYSTEM32MODE);
+
+	switch (ap) {
+	case 0:
+		return read && ((s && !user) || r);
+	case 1:
+		return !user;
+	case 2:
+		return read || !user;
+	case 3:
+		return 1;
+	}
+	return 0;
+}
+
+fault_t
+check_access (ARMul_State * state, ARMword virt_addr, tlb_entry_t * tlb,
+	      int read)
+{
+	int access;
+
+	state->mmu.last_domain = tlb->domain;
+	access = (state->mmu.domain_access_control >> (tlb->domain * 2)) & 3;
+	if ((access == 0) || (access == 2)) {
+		/* It's unclear from the documentation whether this
+		   should always raise a section domain fault, or if
+		   it should be a page domain fault in the case of an
+		   L1 that describes a page table.  In the ARM710T
+		   datasheets, "Figure 8-9: Sequence for checking faults"
+		   seems to indicate the former, while "Table 8-4: Priority
+		   encoding of fault status" gives a value for FS[3210] in
+		   the event of a domain fault for a page.  Hmm. */
+		return SECTION_DOMAIN_FAULT;
+	}
+	if (access == 1) {
+		/* client access - check perms */
+		int subpage, ap;
+
+		switch (tlb->mapping) {
+			/*ks 2004-05-09   
+			 *   only for XScale
+			 *   Extend Small Page(ESP) Format
+			 *   31-12 bits    the base addr of ESP
+			 *   11-10 bits    SBZ
+			 *   9-6   bits    TEX
+			 *   5-4   bits    AP
+			 *   3     bit     C
+			 *   2     bit     B
+			 *   1-0   bits    11
+			 * */
+		case TLB_ESMALLPAGE:	//xj
+			subpage = 0;
+			//printf("TLB_ESMALLPAGE virt_addr=0x%x  \n",virt_addr );
+			break;
+
+		case TLB_TINYPAGE:
+			subpage = 0;
+			//printf("TLB_TINYPAGE virt_addr=0x%x  \n",virt_addr );
+			break;
+
+		case TLB_SMALLPAGE:
+			subpage = (virt_addr >> 10) & 3;
+			break;
+		case TLB_LARGEPAGE:
+			subpage = (virt_addr >> 14) & 3;
+			break;
+		case TLB_SECTION:
+			subpage = 3;
+			break;
+		default:
+			assert (0);
+			subpage = 0;	/* cleans a warning */
+		}
+		ap = (tlb->perms >> (subpage * 2 + 4)) & 3;
+		if (!check_perms (state, ap, read)) {
+			if (tlb->mapping == TLB_SECTION) {
+				return SECTION_PERMISSION_FAULT;
+			}
+			else {
+				return SUBPAGE_PERMISSION_FAULT;
+			}
+		}
+	}
+	else {			/* access == 3 */
+		/* manager access - don't check perms */
+	}
+	return NO_FAULT;
+}
+
+fault_t
+translate (ARMul_State * state, ARMword virt_addr, tlb_s * tlb_t,
+	   tlb_entry_t ** tlb)
+{
+	*tlb = mmu_tlb_search (state, tlb_t, virt_addr);
+	if (!*tlb) {
+		/* walk the translation tables */
+		ARMword l1addr, l1desc;
+		tlb_entry_t entry;
+
+		l1addr = state->mmu.translation_table_base & 0xFFFFC000;
+		l1addr = (l1addr | (virt_addr >> 18)) & ~3;
+		//l1desc = mem_read_word (state, l1addr);
+		bus_read(32, l1addr, &l1desc);
+		switch (l1desc & 3) {
+		case 0:
+			/* 
+			 * according to Figure 3-9 Sequence for checking faults in arm manual,
+			 * section translation fault should be returned here. 
+			 */
+			{
+				return SECTION_TRANSLATION_FAULT;
+			}
+		case 3:
+			/* fine page table */
+			// dcl 2006-01-08
+			{
+				ARMword l2addr, l2desc;
+
+				l2addr = l1desc & 0xFFFFF000;
+				l2addr = (l2addr |
+					  ((virt_addr & 0x000FFC00) >> 8)) &
+					~3;
+				//l2desc = mem_read_word (state, l2addr);				 
+				bus_read(32, l2addr, &l2desc);
+
+				entry.virt_addr = virt_addr;
+				entry.phys_addr = l2desc;
+				entry.perms = l2desc & 0x00000FFC;
+				entry.domain = (l1desc >> 5) & 0x0000000F;
+				switch (l2desc & 3) {
+				case 0:
+					state->mmu.last_domain = entry.domain;
+					return PAGE_TRANSLATION_FAULT;
+				case 3:
+					entry.mapping = TLB_TINYPAGE;
+					break;
+				case 1:
+					// this is untested
+					entry.mapping = TLB_LARGEPAGE;
+					break;
+				case 2:
+					// this is untested
+					entry.mapping = TLB_SMALLPAGE;
+					break;
+				}
+			}
+			break;
+		case 1:
+			/* coarse page table */
+			{
+				ARMword l2addr, l2desc;
+
+				l2addr = l1desc & 0xFFFFFC00;
+				l2addr = (l2addr |
+					  ((virt_addr & 0x000FF000) >> 10)) &
+					~3;
+				//l2desc = mem_read_word (state, l2addr);
+				bus_read(32, l2addr, &l2desc);
+
+				entry.virt_addr = virt_addr;
+				entry.phys_addr = l2desc;
+				entry.perms = l2desc & 0x00000FFC;
+				entry.domain = (l1desc >> 5) & 0x0000000F;
+				//printf("SKYEYE:PAGE virt_addr = %x,l1desc=%x,phys_addr=%x\n",virt_addr,l1desc,entry.phys_addr);
+				//chy 2003-09-02 for xscale
+				switch (l2desc & 3) {
+				case 0:
+					state->mmu.last_domain = entry.domain;
+					return PAGE_TRANSLATION_FAULT;
+				case 3:
+					if (!state->is_XScale) {
+						state->mmu.last_domain =
+							entry.domain;
+						return PAGE_TRANSLATION_FAULT;
+					};
+					//ks 2004-05-09 xscale shold use Extend Small Page
+					//entry.mapping = TLB_SMALLPAGE;
+					entry.mapping = TLB_ESMALLPAGE;	//xj
+					break;
+				case 1:
+					entry.mapping = TLB_LARGEPAGE;
+					break;
+				case 2:
+					entry.mapping = TLB_SMALLPAGE;
+					break;
+				}
+			}
+			break;
+		case 2:
+			/* section */
+			//printf("SKYEYE:WARNING: not implement section mapping incompletely\n");
+			//printf("SKYEYE:SECTION virt_addr = %x,l1desc=%x\n",virt_addr,l1desc);
+			//return SECTION_DOMAIN_FAULT;
+			//#if 0
+			entry.virt_addr = virt_addr;
+			entry.phys_addr = l1desc;
+			entry.perms = l1desc & 0x00000C0C;
+			entry.domain = (l1desc >> 5) & 0x0000000F;
+			entry.mapping = TLB_SECTION;
+			break;
+			//#endif
+		}
+		entry.virt_addr &= tlb_masks[entry.mapping];
+		entry.phys_addr &= tlb_masks[entry.mapping];
+
+		/* place entry in the tlb */
+		*tlb = &tlb_t->entrys[tlb_t->cycle];
+		tlb_t->cycle = (tlb_t->cycle + 1) % tlb_t->num;
+		**tlb = entry;
+	}
+	state->mmu.last_domain = (*tlb)->domain;
+	return NO_FAULT;
+}
+
+int
+mmu_tlb_init (tlb_s * tlb_t, int num)
+{
+	tlb_entry_t *e;
+	int i;
+
+	e = (tlb_entry_t *) malloc (sizeof (*e) * num);
+	if (e == NULL) {
+		ERROR_LOG(ARM11, "malloc size %d\n", sizeof (*e) * num);
+		goto tlb_malloc_error;
+	}
+	tlb_t->entrys = e;
+	for (i = 0; i < num; i++, e++)
+		e->mapping = TLB_INVALID;
+	tlb_t->cycle = 0;
+	tlb_t->num = num;
+	return 0;
+
+      tlb_malloc_error:
+	return -1;
+}
+
+void
+mmu_tlb_exit (tlb_s * tlb_t)
+{
+	free (tlb_t->entrys);
+};
+
+void
+mmu_tlb_invalidate_all (ARMul_State * state, tlb_s * tlb_t)
+{
+	int entry;
+
+	for (entry = 0; entry < tlb_t->num; entry++) {
+		tlb_t->entrys[entry].mapping = TLB_INVALID;
+	}
+	tlb_t->cycle = 0;
+}
+
+void
+mmu_tlb_invalidate_entry (ARMul_State * state, tlb_s * tlb_t, ARMword addr)
+{
+	tlb_entry_t *tlb;
+
+	tlb = mmu_tlb_search (state, tlb_t, addr);
+	if (tlb) {
+		tlb->mapping = TLB_INVALID;
+	}
+}
+
+tlb_entry_t *
+mmu_tlb_search (ARMul_State * state, tlb_s * tlb_t, ARMword virt_addr)
+{
+	int entry;
+
+	for (entry = 0; entry < tlb_t->num; entry++) {
+		tlb_entry_t *tlb;
+		ARMword mask;
+
+		tlb = &(tlb_t->entrys[entry]);
+		if (tlb->mapping == TLB_INVALID) {
+			continue;
+		}
+		mask = tlb_masks[tlb->mapping];
+		if ((virt_addr & mask) == (tlb->virt_addr & mask)) {
+			return tlb;
+		}
+	}
+	return NULL;
+}

src/core/arm/interpreter/mmu/tlb.h

@@ -63,14 +63,7 @@ typedef struct tlb_s
 #define tlb_b_flag(tlb) \
     ((tlb)->perms & 0x4)
 
-#define  tlb_va_to_pa(tlb, va) \
+#define  tlb_va_to_pa(tlb, va) ((tlb->phys_addr & tlb_masks[tlb->mapping]) | (va & ~tlb_masks[tlb->mapping]))
-(\
- {\
-    ARMword mask = tlb_masks[tlb->mapping];      \
-    (tlb->phys_addr & mask) | (va & ~mask);\
- }\
-)
-
 fault_t
 check_access (ARMul_State * state, ARMword virt_addr, tlb_entry_t * tlb,
           int read);

src/core/arm/interpreter/mmu/wb.cpp

@@ -0,0 +1,149 @@
+#include "core/arm/interpreter/armdefs.h"
+
+/* wb_init
+ * @wb_t	:wb_t to init
+ * @num		:num of entrys
+ * @nb		:num of byte of each entry
+ *
+ * $	-1:error
+ * 		 0:ok
+ * */
+int
+mmu_wb_init (wb_s * wb_t, int num, int nb)
+{
+	int i;
+	wb_entry_t *entrys, *wb;
+
+	entrys = (wb_entry_t *) malloc (sizeof (*entrys) * num);
+	if (entrys == NULL) {
+		ERROR_LOG(ARM11, "malloc size %d\n", sizeof (*entrys) * num);
+		goto entrys_malloc_error;
+	}
+
+	for (wb = entrys, i = 0; i < num; i++, wb++) {
+		/*chy 2004-06-06, fix bug found by wenye@cs.ucsb.edu */
+		//wb->data = (ARMword *)malloc(sizeof(ARMword) * nb);
+		wb->data = (ARMbyte *) malloc (nb);
+		if (wb->data == NULL) {
+			ERROR_LOG(ARM11, "malloc size of %d\n", nb);
+			goto data_malloc_error;
+		}
+
+	};
+
+	wb_t->first = wb_t->last = wb_t->used = 0;
+	wb_t->num = num;
+	wb_t->nb = nb;
+	wb_t->entrys = entrys;
+	return 0;
+
+      data_malloc_error:
+	while (--i >= 0)
+		free (entrys[i].data);
+	free (entrys);
+      entrys_malloc_error:
+	return -1;
+};
+
+/* wb_exit
+ * @wb_t :wb_t to exit
+ * */
+void
+mmu_wb_exit (wb_s * wb_t)
+{
+	int i;
+	wb_entry_t *wb;
+
+	wb = wb_t->entrys;
+	for (i = 0; i < wb_t->num; i++, wb++) {
+		free (wb->data);
+	}
+	free (wb_t->entrys);
+};
+
+/* wb_write_words :put words in Write Buffer
+ * @state:	ARMul_State
+ * @wb_t:	write buffer
+ * @pa:		physical address
+ * @data:	data ptr
+ * @n		number of word to write
+ *
+ * Note: write buffer merge is not implemented, can be done late
+ * */
+void
+mmu_wb_write_bytes (ARMul_State * state, wb_s * wb_t, ARMword pa,
+		    ARMbyte * data, int n)
+{
+	int i;
+	wb_entry_t *wb;
+
+	while (n) {
+		if (wb_t->num == wb_t->used) {
+			/*clean the last wb entry */
+			ARMword t;
+
+			wb = &wb_t->entrys[wb_t->last];
+			t = wb->pa;
+			for (i = 0; i < wb->nb; i++) {
+				//mem_write_byte (state, t, wb->data[i]);
+				bus_write(8, t, wb->data[i]);
+				//t += WORD_SIZE;
+				t++;
+			}
+			wb_t->last++;
+			if (wb_t->last == wb_t->num)
+				wb_t->last = 0;
+			wb_t->used--;
+		}
+
+		wb = &wb_t->entrys[wb_t->first];
+		i = (n < wb_t->nb) ? n : wb_t->nb;
+
+		wb->pa = pa;
+		//pa += i << WORD_SHT;
+		pa += i;
+
+		wb->nb = i;
+		//memcpy(wb->data, data, i << WORD_SHT);
+		memcpy (wb->data, data, i);
+		data += i;
+		n -= i;
+		wb_t->first++;
+		if (wb_t->first == wb_t->num)
+			wb_t->first = 0;
+		wb_t->used++;
+	};
+//teawater add for set_dirty fflash cache function 2005.07.18-------------------
+#ifdef DBCT
+	if (!skyeye_config.no_dbct) {
+		tb_setdirty (state, pa, NULL);
+	}
+#endif
+//AJ2D--------------------------------------------------------------------------
+}
+
+/* wb_drain_all
+ * @wb_t wb_t to drain
+ * */
+void
+mmu_wb_drain_all (ARMul_State * state, wb_s * wb_t)
+{
+	ARMword pa;
+	wb_entry_t *wb;
+	int i;
+
+	while (wb_t->used) {
+		wb = &wb_t->entrys[wb_t->last];
+		pa = wb->pa;
+		for (i = 0; i < wb->nb; i++) {
+			//mem_write_byte (state, pa, wb->data[i]);
+			bus_write(8, pa, wb->data[i]);
+			//pa += WORD_SIZE;
+			pa++;
+		}
+		wb_t->last++;
+		if (wb_t->last == wb_t->num)
+			wb_t->last = 0;
+		wb_t->used--;
+	};
+}

src/core/arm/interpreter/vfp/asm_vfp.h

@@ -0,0 +1,84 @@
+/*
+ * arch/arm/include/asm/vfp.h
+ *
+ * VFP register definitions.
+ * First, the standard VFP set.
+ */
+
+#define FPSID			cr0
+#define FPSCR			cr1
+#define MVFR1			cr6
+#define MVFR0			cr7
+#define FPEXC			cr8
+#define FPINST			cr9
+#define FPINST2			cr10
+
+/* FPSID bits */
+#define FPSID_IMPLEMENTER_BIT	(24)
+#define FPSID_IMPLEMENTER_MASK	(0xff << FPSID_IMPLEMENTER_BIT)
+#define FPSID_SOFTWARE		(1<<23)
+#define FPSID_FORMAT_BIT	(21)
+#define FPSID_FORMAT_MASK	(0x3  << FPSID_FORMAT_BIT)
+#define FPSID_NODOUBLE		(1<<20)
+#define FPSID_ARCH_BIT		(16)
+#define FPSID_ARCH_MASK		(0xF  << FPSID_ARCH_BIT)
+#define FPSID_PART_BIT		(8)
+#define FPSID_PART_MASK		(0xFF << FPSID_PART_BIT)
+#define FPSID_VARIANT_BIT	(4)
+#define FPSID_VARIANT_MASK	(0xF  << FPSID_VARIANT_BIT)
+#define FPSID_REV_BIT		(0)
+#define FPSID_REV_MASK		(0xF  << FPSID_REV_BIT)
+
+/* FPEXC bits */
+#define FPEXC_EX		(1 << 31)
+#define FPEXC_EN		(1 << 30)
+#define FPEXC_DEX		(1 << 29)
+#define FPEXC_FP2V		(1 << 28)
+#define FPEXC_VV		(1 << 27)
+#define FPEXC_TFV		(1 << 26)
+#define FPEXC_LENGTH_BIT	(8)
+#define FPEXC_LENGTH_MASK	(7 << FPEXC_LENGTH_BIT)
+#define FPEXC_IDF		(1 << 7)
+#define FPEXC_IXF		(1 << 4)
+#define FPEXC_UFF		(1 << 3)
+#define FPEXC_OFF		(1 << 2)
+#define FPEXC_DZF		(1 << 1)
+#define FPEXC_IOF		(1 << 0)
+#define FPEXC_TRAP_MASK		(FPEXC_IDF|FPEXC_IXF|FPEXC_UFF|FPEXC_OFF|FPEXC_DZF|FPEXC_IOF)
+
+/* FPSCR bits */
+#define FPSCR_DEFAULT_NAN	(1<<25)
+#define FPSCR_FLUSHTOZERO	(1<<24)
+#define FPSCR_ROUND_NEAREST	(0<<22)
+#define FPSCR_ROUND_PLUSINF	(1<<22)
+#define FPSCR_ROUND_MINUSINF	(2<<22)
+#define FPSCR_ROUND_TOZERO	(3<<22)
+#define FPSCR_RMODE_BIT		(22)
+#define FPSCR_RMODE_MASK	(3 << FPSCR_RMODE_BIT)
+#define FPSCR_STRIDE_BIT	(20)
+#define FPSCR_STRIDE_MASK	(3 << FPSCR_STRIDE_BIT)
+#define FPSCR_LENGTH_BIT	(16)
+#define FPSCR_LENGTH_MASK	(7 << FPSCR_LENGTH_BIT)
+#define FPSCR_IOE		(1<<8)
+#define FPSCR_DZE		(1<<9)
+#define FPSCR_OFE		(1<<10)
+#define FPSCR_UFE		(1<<11)
+#define FPSCR_IXE		(1<<12)
+#define FPSCR_IDE		(1<<15)
+#define FPSCR_IOC		(1<<0)
+#define FPSCR_DZC		(1<<1)
+#define FPSCR_OFC		(1<<2)
+#define FPSCR_UFC		(1<<3)
+#define FPSCR_IXC		(1<<4)
+#define FPSCR_IDC		(1<<7)
+
+/* MVFR0 bits */
+#define MVFR0_A_SIMD_BIT	(0)
+#define MVFR0_A_SIMD_MASK	(0xf << MVFR0_A_SIMD_BIT)
+
+/* Bit patterns for decoding the packaged operation descriptors */
+#define VFPOPDESC_LENGTH_BIT	(9)
+#define VFPOPDESC_LENGTH_MASK	(0x07 << VFPOPDESC_LENGTH_BIT)
+#define VFPOPDESC_UNUSED_BIT	(24)
+#define VFPOPDESC_UNUSED_MASK	(0xFF << VFPOPDESC_UNUSED_BIT)
+#define VFPOPDESC_OPDESC_MASK	(~(VFPOPDESC_LENGTH_MASK | VFPOPDESC_UNUSED_MASK))

src/core/arm/interpreter/vfp/vfp.cpp

@@ -0,0 +1,357 @@
+/*
+    armvfp.c - ARM VFPv3 emulation unit
+    Copyright (C) 2003 Skyeye Develop Group
+    for help please send mail to <skyeye-developer@lists.gro.clinux.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/* Note: this file handles interface with arm core and vfp registers */
+
+/* Opens debug for classic interpreter only */
+//#define DEBUG
+
+#include "common/common.h"
+
+#include "core/arm/interpreter/armdefs.h"
+#include "core/arm/interpreter/vfp/vfp.h"
+
+//ARMul_State* persistent_state; /* function calls from SoftFloat lib don't have an access to ARMul_state. */
+
+unsigned
+VFPInit (ARMul_State *state)
+{
+	state->VFP[VFP_OFFSET(VFP_FPSID)] = VFP_FPSID_IMPLMEN<<24 | VFP_FPSID_SW<<23 | VFP_FPSID_SUBARCH<<16 | 
+		VFP_FPSID_PARTNUM<<8 | VFP_FPSID_VARIANT<<4 | VFP_FPSID_REVISION;
+	state->VFP[VFP_OFFSET(VFP_FPEXC)] = 0;
+	state->VFP[VFP_OFFSET(VFP_FPSCR)] = 0;
+	
+	//persistent_state = state;
+	/* Reset only specify VFP_FPEXC_EN = '0' */
+
+	return No_exp;
+}
+
+unsigned
+VFPMRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value)
+{
+	/* MRC<c> <coproc>,<opc1>,<Rt>,<CRn>,<CRm>{,<opc2>} */
+	int CoProc = BITS (8, 11); /* 10 or 11 */
+	int OPC_1 = BITS (21, 23);
+	int Rt = BITS (12, 15);
+	int CRn = BITS (16, 19);
+	int CRm = BITS (0, 3);
+	int OPC_2 = BITS (5, 7);
+	
+	/* TODO check access permission */
+	
+	/* CRn/opc1 CRm/opc2 */
+	
+	if (CoProc == 10 || CoProc == 11)
+	{
+		#define VFP_MRC_TRANS
+		#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+		#undef VFP_MRC_TRANS
+	}
+	DEBUG_LOG(ARM11, "Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, CRn %x, CRm %x, OPC_2 %x\n", 
+	       instr, CoProc, OPC_1, Rt, CRn, CRm, OPC_2);
+
+	return ARMul_CANT;
+}
+
+unsigned
+VFPMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value)
+{
+	/* MCR<c> <coproc>,<opc1>,<Rt>,<CRn>,<CRm>{,<opc2>} */
+	int CoProc = BITS (8, 11); /* 10 or 11 */
+	int OPC_1 = BITS (21, 23);
+	int Rt = BITS (12, 15);
+	int CRn = BITS (16, 19);
+	int CRm = BITS (0, 3);
+	int OPC_2 = BITS (5, 7);
+	
+	/* TODO check access permission */
+	
+	/* CRn/opc1 CRm/opc2 */
+	if (CoProc == 10 || CoProc == 11)
+	{
+		#define VFP_MCR_TRANS
+		#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+		#undef VFP_MCR_TRANS
+	}
+	DEBUG_LOG(ARM11, "Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, CRn %x, CRm %x, OPC_2 %x\n", 
+	       instr, CoProc, OPC_1, Rt, CRn, CRm, OPC_2);
+
+	return ARMul_CANT;
+}
+
+unsigned
+VFPMRRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value1, ARMword * value2)
+{
+	/* MCRR<c> <coproc>,<opc1>,<Rt>,<Rt2>,<CRm> */
+	int CoProc = BITS (8, 11); /* 10 or 11 */
+	int OPC_1 = BITS (4, 7);
+	int Rt = BITS (12, 15);
+	int Rt2 = BITS (16, 19);
+	int CRm = BITS (0, 3);
+	
+	if (CoProc == 10 || CoProc == 11)
+	{
+		#define VFP_MRRC_TRANS
+		#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+		#undef VFP_MRRC_TRANS
+	}
+	DEBUG_LOG(ARM11, "Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, Rt2 %x, CRm %x\n", 
+	       instr, CoProc, OPC_1, Rt, Rt2, CRm);
+
+	return ARMul_CANT;
+}
+
+unsigned
+VFPMCRR (ARMul_State * state, unsigned type, ARMword instr, ARMword value1, ARMword value2)
+{
+	/* MCRR<c> <coproc>,<opc1>,<Rt>,<Rt2>,<CRm> */
+	int CoProc = BITS (8, 11); /* 10 or 11 */
+	int OPC_1 = BITS (4, 7);
+	int Rt = BITS (12, 15);
+	int Rt2 = BITS (16, 19);
+	int CRm = BITS (0, 3);
+	
+	/* TODO check access permission */
+	
+	/* CRn/opc1 CRm/opc2 */
+	
+	if (CoProc == 11 || CoProc == 10)
+	{
+		#define VFP_MCRR_TRANS
+		#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+		#undef VFP_MCRR_TRANS
+	}
+	DEBUG_LOG(ARM11, "Can't identify %x, CoProc %x, OPC_1 %x, Rt %x, Rt2 %x, CRm %x\n", 
+	       instr, CoProc, OPC_1, Rt, Rt2, CRm);
+
+	return ARMul_CANT;
+}
+
+unsigned
+VFPSTC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value)
+{
+	/* STC{L}<c> <coproc>,<CRd>,[<Rn>],<option> */
+	int CoProc = BITS (8, 11); /* 10 or 11 */
+	int CRd = BITS (12, 15);
+	int Rn = BITS (16, 19);
+	int imm8 = BITS (0, 7);
+	int P = BIT(24);
+	int U = BIT(23);
+	int D = BIT(22);
+	int W = BIT(21);
+	
+	/* TODO check access permission */
+	
+	/* VSTM */
+	if ( (P|U|D|W) == 0 )
+	{
+		DEBUG_LOG(ARM11, "In %s, UNDEFINED\n", __FUNCTION__); exit(-1);
+	}
+	if (CoProc == 10 || CoProc == 11)
+	{
+		#if 1
+		if (P == 0 && U == 0 && W == 0)
+		{
+			DEBUG_LOG(ARM11, "VSTM Related encodings\n"); exit(-1);
+		}
+		if (P == U && W == 1)
+		{
+			DEBUG_LOG(ARM11, "UNDEFINED\n"); exit(-1);
+		}
+		#endif
+
+		#define VFP_STC_TRANS
+		#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+		#undef VFP_STC_TRANS
+	}
+	DEBUG_LOG(ARM11, "Can't identify %x, CoProc %x, CRd %x, Rn %x, imm8 %x, P %x, U %x, D %x, W %x\n", 
+	       instr, CoProc, CRd, Rn, imm8, P, U, D, W);
+
+	return ARMul_CANT;
+}
+
+unsigned
+VFPLDC (ARMul_State * state, unsigned type, ARMword instr, ARMword value)
+{
+	/* LDC{L}<c> <coproc>,<CRd>,[<Rn>] */
+	int CoProc = BITS (8, 11); /* 10 or 11 */
+	int CRd = BITS (12, 15);
+	int Rn = BITS (16, 19);
+	int imm8 = BITS (0, 7);
+	int P = BIT(24);
+	int U = BIT(23);
+	int D = BIT(22);
+	int W = BIT(21);
+	
+	/* TODO check access permission */
+	
+	if ( (P|U|D|W) == 0 )
+	{
+		DEBUG_LOG(ARM11, "In %s, UNDEFINED\n", __FUNCTION__); exit(-1);
+	}
+	if (CoProc == 10 || CoProc == 11)
+	{
+		#define VFP_LDC_TRANS
+		#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+		#undef VFP_LDC_TRANS
+	}
+	DEBUG_LOG(ARM11, "Can't identify %x, CoProc %x, CRd %x, Rn %x, imm8 %x, P %x, U %x, D %x, W %x\n", 
+	       instr, CoProc, CRd, Rn, imm8, P, U, D, W);
+
+	return ARMul_CANT;
+}
+
+unsigned
+VFPCDP (ARMul_State * state, unsigned type, ARMword instr)
+{
+	/* CDP<c> <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2> */
+	int CoProc = BITS (8, 11); /* 10 or 11 */
+	int OPC_1 = BITS (20, 23);
+	int CRd = BITS (12, 15);
+	int CRn = BITS (16, 19);
+	int CRm = BITS (0, 3);
+	int OPC_2 = BITS (5, 7);
+	
+	/* TODO check access permission */
+	
+	/* CRn/opc1 CRm/opc2 */
+
+	if (CoProc == 10 || CoProc == 11)
+	{
+		#define VFP_CDP_TRANS
+		#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+		#undef VFP_CDP_TRANS
+		
+		int exceptions = 0;
+		if (CoProc == 10)
+			exceptions = vfp_single_cpdo(state, instr, state->VFP[VFP_OFFSET(VFP_FPSCR)]);
+		else 
+			exceptions = vfp_double_cpdo(state, instr, state->VFP[VFP_OFFSET(VFP_FPSCR)]);
+
+		vfp_raise_exceptions(state, exceptions, instr, state->VFP[VFP_OFFSET(VFP_FPSCR)]);
+
+		return ARMul_DONE;
+	}
+	DEBUG_LOG(ARM11, "Can't identify %x\n", instr);
+	return ARMul_CANT;
+}
+
+
+/* ----------- MRC ------------ */
+#define VFP_MRC_IMPL
+#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+#undef VFP_MRC_IMPL
+
+#define VFP_MRRC_IMPL
+#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+#undef VFP_MRRC_IMPL
+
+
+/* ----------- MCR ------------ */
+#define VFP_MCR_IMPL
+#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+#undef VFP_MCR_IMPL
+
+#define VFP_MCRR_IMPL
+#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+#undef VFP_MCRR_IMPL
+
+/* Memory operation are not inlined, as old Interpreter and Fast interpreter
+   don't have the same memory operation interface.
+   Old interpreter framework does one access to coprocessor per data, and
+   handles already data write, as well as address computation,
+   which is not the case for Fast interpreter. Therefore, implementation
+   of vfp instructions in old interpreter and fast interpreter are separate. */
+
+/* ----------- STC ------------ */
+#define VFP_STC_IMPL
+#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+#undef VFP_STC_IMPL
+
+
+/* ----------- LDC ------------ */
+#define VFP_LDC_IMPL
+#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+#undef VFP_LDC_IMPL
+
+
+/* ----------- CDP ------------ */
+#define VFP_CDP_IMPL
+#include "core/arm/interpreter/vfp/vfpinstr.cpp"
+#undef VFP_CDP_IMPL
+
+/* Miscellaneous functions */
+int32_t vfp_get_float(arm_core_t* state, unsigned int reg)
+{
+	DBG("VFP get float: s%d=[%08x]\n", reg, state->ExtReg[reg]);
+	return state->ExtReg[reg];
+}
+
+void vfp_put_float(arm_core_t* state, int32_t val, unsigned int reg)
+{
+	DBG("VFP put float: s%d <= [%08x]\n", reg, val);
+	state->ExtReg[reg] = val;
+}
+
+uint64_t vfp_get_double(arm_core_t* state, unsigned int reg)
+{
+	uint64_t result;
+	result = ((uint64_t) state->ExtReg[reg*2+1])<<32 | state->ExtReg[reg*2];
+	DBG("VFP get double: s[%d-%d]=[%016llx]\n", reg*2+1, reg*2, result);
+	return result;
+}
+
+void vfp_put_double(arm_core_t* state, uint64_t val, unsigned int reg)
+{
+	DBG("VFP put double: s[%d-%d] <= [%08x-%08x]\n", reg*2+1, reg*2, (uint32_t) (val>>32), (uint32_t) (val & 0xffffffff));
+	state->ExtReg[reg*2] = (uint32_t) (val & 0xffffffff);
+	state->ExtReg[reg*2+1] = (uint32_t) (val>>32);
+}
+
+
+
+/*
+ * Process bitmask of exception conditions. (from vfpmodule.c)
+ */
+void vfp_raise_exceptions(ARMul_State* state, u32 exceptions, u32 inst, u32 fpscr)
+{
+	int si_code = 0;
+
+	vfpdebug("VFP: raising exceptions %08x\n", exceptions);
+
+	if (exceptions == VFP_EXCEPTION_ERROR) {
+		DEBUG_LOG(ARM11, "unhandled bounce %x\n", inst);
+		exit(-1);
+		return;
+	}
+
+	/*
+	 * If any of the status flags are set, update the FPSCR.
+	 * Comparison instructions always return at least one of
+	 * these flags set.
+	 */
+	if (exceptions & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V))
+		fpscr &= ~(FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V);
+
+	fpscr |= exceptions;
+
+	state->VFP[VFP_OFFSET(VFP_FPSCR)] = fpscr;
+}

src/core/arm/interpreter/vfp/vfp.h

@@ -0,0 +1,111 @@
+/* 
+    vfp/vfp.h - ARM VFPv3 emulation unit - vfp interface
+    Copyright (C) 2003 Skyeye Develop Group
+    for help please send mail to <skyeye-developer@lists.gro.clinux.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+#ifndef __VFP_H__
+#define __VFP_H__
+
+#define DBG(...) DEBUG_LOG(ARM11, __VA_ARGS__)
+
+#define vfpdebug //printf
+
+#include "core/arm/interpreter/vfp/vfp_helper.h" /* for references to cdp SoftFloat functions */
+
+unsigned VFPInit (ARMul_State *state);
+unsigned VFPMRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value);
+unsigned VFPMCR (ARMul_State * state, unsigned type, ARMword instr, ARMword value);
+unsigned VFPMRRC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value1, ARMword * value2);
+unsigned VFPMCRR (ARMul_State * state, unsigned type, ARMword instr, ARMword value1, ARMword value2);
+unsigned VFPSTC (ARMul_State * state, unsigned type, ARMword instr, ARMword * value);
+unsigned VFPLDC (ARMul_State * state, unsigned type, ARMword instr, ARMword value);
+unsigned VFPCDP (ARMul_State * state, unsigned type, ARMword instr);
+
+/* FPSID Information */
+#define VFP_FPSID_IMPLMEN 0 	/* should be the same as cp15 0 c0 0*/
+#define VFP_FPSID_SW 0
+#define VFP_FPSID_SUBARCH 0x2 	/* VFP version. Current is v3 (not strict) */
+#define VFP_FPSID_PARTNUM 0x1
+#define VFP_FPSID_VARIANT 0x1
+#define VFP_FPSID_REVISION 0x1
+
+/* FPEXC Flags */
+#define VFP_FPEXC_EX 1<<31
+#define VFP_FPEXC_EN 1<<30
+
+/* FPSCR Flags */
+#define VFP_FPSCR_NFLAG 1<<31
+#define VFP_FPSCR_ZFLAG 1<<30
+#define VFP_FPSCR_CFLAG 1<<29
+#define VFP_FPSCR_VFLAG 1<<28
+
+#define VFP_FPSCR_AHP 1<<26 	/* Alternative Half Precision */
+#define VFP_FPSCR_DN 1<<25 	/* Default NaN */
+#define VFP_FPSCR_FZ 1<<24 	/* Flush-to-zero */
+#define VFP_FPSCR_RMODE 3<<22 	/* Rounding Mode */
+#define VFP_FPSCR_STRIDE 3<<20 	/* Stride (vector) */
+#define VFP_FPSCR_LEN 7<<16 	/* Stride (vector) */
+
+#define VFP_FPSCR_IDE 1<<15	/* Input Denormal exc */
+#define VFP_FPSCR_IXE 1<<12	/* Inexact exc */
+#define VFP_FPSCR_UFE 1<<11	/* Undeflow exc */
+#define VFP_FPSCR_OFE 1<<10	/* Overflow exc */
+#define VFP_FPSCR_DZE 1<<9	/* Division by Zero exc */
+#define VFP_FPSCR_IOE 1<<8	/* Invalid Operation exc */
+
+#define VFP_FPSCR_IDC 1<<7	/* Input Denormal cum exc */
+#define VFP_FPSCR_IXC 1<<4	/* Inexact cum exc */
+#define VFP_FPSCR_UFC 1<<3	/* Undeflow cum exc */
+#define VFP_FPSCR_OFC 1<<2	/* Overflow cum exc */
+#define VFP_FPSCR_DZC 1<<1	/* Division by Zero cum exc */
+#define VFP_FPSCR_IOC 1<<0	/* Invalid Operation cum exc */
+
+/* Inline instructions. Note: Used in a cpp file as well */
+#ifdef __cplusplus
+ extern "C" {
+#endif
+int32_t vfp_get_float(ARMul_State * state, unsigned int reg);
+void vfp_put_float(ARMul_State * state, int32_t val, unsigned int reg);
+uint64_t vfp_get_double(ARMul_State * state, unsigned int reg);
+void vfp_put_double(ARMul_State * state, uint64_t val, unsigned int reg);
+void vfp_raise_exceptions(ARMul_State * state, uint32_t exceptions, uint32_t inst, uint32_t fpscr);
+u32 vfp_single_cpdo(ARMul_State* state, u32 inst, u32 fpscr);
+u32 vfp_double_cpdo(ARMul_State* state, u32 inst, u32 fpscr);
+
+/* MRC */
+inline void VMRS(ARMul_State * state, ARMword reg, ARMword Rt, ARMword *value);
+inline void VMOVBRS(ARMul_State * state, ARMword to_arm, ARMword t, ARMword n, ARMword *value);
+inline void VMOVBRRD(ARMul_State * state, ARMword to_arm, ARMword t, ARMword t2, ARMword n, ARMword *value1, ARMword *value2);
+inline void VMOVI(ARMul_State * state, ARMword single, ARMword d, ARMword imm);
+inline void VMOVR(ARMul_State * state, ARMword single, ARMword d, ARMword imm);
+/* MCR */
+inline void VMSR(ARMul_State * state, ARMword reg, ARMword Rt);
+/* STC */
+inline int VSTM(ARMul_State * state, int type, ARMword instr, ARMword* value);
+inline int VPUSH(ARMul_State * state, int type, ARMword instr, ARMword* value);
+inline int VSTR(ARMul_State * state, int type, ARMword instr, ARMword* value);
+/* LDC */
+inline int VLDM(ARMul_State * state, int type, ARMword instr, ARMword value);
+inline int VPOP(ARMul_State * state, int type, ARMword instr, ARMword value);
+inline int VLDR(ARMul_State * state, int type, ARMword instr, ARMword value);
+
+#ifdef __cplusplus
+ }
+#endif
+
+#endif

src/core/arm/interpreter/vfp/vfp_helper.h

@@ -0,0 +1,541 @@
+/*
+    vfp/vfp.h - ARM VFPv3 emulation unit - SoftFloat lib helper
+    Copyright (C) 2003 Skyeye Develop Group
+    for help please send mail to <skyeye-developer@lists.gro.clinux.org>
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+*/
+
+/* 
+ *  The following code is derivative from Linux Android kernel vfp
+ *  floating point support.
+ * 
+ *  Copyright (C) 2004 ARM Limited.
+ *  Written by Deep Blue Solutions Limited.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __VFP_HELPER_H__
+#define __VFP_HELPER_H__
+
+/* Custom edit */
+
+#include <stdint.h>
+#include <stdio.h>
+
+#include "core/arm/interpreter/armdefs.h"
+
+#define u16 uint16_t
+#define u32 uint32_t
+#define u64 uint64_t
+#define s16 int16_t
+#define s32 int32_t
+#define s64 int64_t
+
+#define pr_info //printf
+#define pr_debug //printf
+
+static u32 fls(int x);
+#define do_div(n, base) {n/=base;}
+
+/* From vfpinstr.h */
+
+#define INST_CPRTDO(inst)	(((inst) & 0x0f000000) == 0x0e000000)
+#define INST_CPRT(inst)		((inst) & (1 << 4))
+#define INST_CPRT_L(inst)	((inst) & (1 << 20))
+#define INST_CPRT_Rd(inst)	(((inst) & (15 << 12)) >> 12)
+#define INST_CPRT_OP(inst)	(((inst) >> 21) & 7)
+#define INST_CPNUM(inst)	((inst) & 0xf00)
+#define CPNUM(cp)		((cp) << 8)
+
+#define FOP_MASK	(0x00b00040)
+#define FOP_FMAC	(0x00000000)
+#define FOP_FNMAC	(0x00000040)
+#define FOP_FMSC	(0x00100000)
+#define FOP_FNMSC	(0x00100040)
+#define FOP_FMUL	(0x00200000)
+#define FOP_FNMUL	(0x00200040)
+#define FOP_FADD	(0x00300000)
+#define FOP_FSUB	(0x00300040)
+#define FOP_FDIV	(0x00800000)
+#define FOP_EXT		(0x00b00040)
+
+#define FOP_TO_IDX(inst)	((inst & 0x00b00000) >> 20 | (inst & (1 << 6)) >> 4)
+
+#define FEXT_MASK	(0x000f0080)
+#define FEXT_FCPY	(0x00000000)
+#define FEXT_FABS	(0x00000080)
+#define FEXT_FNEG	(0x00010000)
+#define FEXT_FSQRT	(0x00010080)
+#define FEXT_FCMP	(0x00040000)
+#define FEXT_FCMPE	(0x00040080)
+#define FEXT_FCMPZ	(0x00050000)
+#define FEXT_FCMPEZ	(0x00050080)
+#define FEXT_FCVT	(0x00070080)
+#define FEXT_FUITO	(0x00080000)
+#define FEXT_FSITO	(0x00080080)
+#define FEXT_FTOUI	(0x000c0000)
+#define FEXT_FTOUIZ	(0x000c0080)
+#define FEXT_FTOSI	(0x000d0000)
+#define FEXT_FTOSIZ	(0x000d0080)
+
+#define FEXT_TO_IDX(inst)	((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
+
+#define vfp_get_sd(inst)	((inst & 0x0000f000) >> 11 | (inst & (1 << 22)) >> 22)
+#define vfp_get_dd(inst)	((inst & 0x0000f000) >> 12 | (inst & (1 << 22)) >> 18)
+#define vfp_get_sm(inst)	((inst & 0x0000000f) << 1 | (inst & (1 << 5)) >> 5)
+#define vfp_get_dm(inst)	((inst & 0x0000000f) | (inst & (1 << 5)) >> 1)
+#define vfp_get_sn(inst)	((inst & 0x000f0000) >> 15 | (inst & (1 << 7)) >> 7)
+#define vfp_get_dn(inst)	((inst & 0x000f0000) >> 16 | (inst & (1 << 7)) >> 3)
+
+#define vfp_single(inst)	(((inst) & 0x0000f00) == 0xa00)
+
+#define FPSCR_N	(1 << 31)
+#define FPSCR_Z	(1 << 30)
+#define FPSCR_C (1 << 29)
+#define FPSCR_V	(1 << 28)
+
+/* -------------- */
+
+/* From asm/include/vfp.h */
+
+/* FPSCR bits */
+#define FPSCR_DEFAULT_NAN	(1<<25)
+#define FPSCR_FLUSHTOZERO	(1<<24)
+#define FPSCR_ROUND_NEAREST	(0<<22)
+#define FPSCR_ROUND_PLUSINF	(1<<22)
+#define FPSCR_ROUND_MINUSINF	(2<<22)
+#define FPSCR_ROUND_TOZERO	(3<<22)
+#define FPSCR_RMODE_BIT		(22)
+#define FPSCR_RMODE_MASK	(3 << FPSCR_RMODE_BIT)
+#define FPSCR_STRIDE_BIT	(20)
+#define FPSCR_STRIDE_MASK	(3 << FPSCR_STRIDE_BIT)
+#define FPSCR_LENGTH_BIT	(16)
+#define FPSCR_LENGTH_MASK	(7 << FPSCR_LENGTH_BIT)
+#define FPSCR_IOE		(1<<8)
+#define FPSCR_DZE		(1<<9)
+#define FPSCR_OFE		(1<<10)
+#define FPSCR_UFE		(1<<11)
+#define FPSCR_IXE		(1<<12)
+#define FPSCR_IDE		(1<<15)
+#define FPSCR_IOC		(1<<0)
+#define FPSCR_DZC		(1<<1)
+#define FPSCR_OFC		(1<<2)
+#define FPSCR_UFC		(1<<3)
+#define FPSCR_IXC		(1<<4)
+#define FPSCR_IDC		(1<<7)
+
+/* ---------------- */
+
+static inline u32 vfp_shiftright32jamming(u32 val, unsigned int shift)
+{
+	if (shift) {
+		if (shift < 32)
+			val = val >> shift | ((val << (32 - shift)) != 0);
+		else
+			val = val != 0;
+	}
+	return val;
+}
+
+static inline u64 vfp_shiftright64jamming(u64 val, unsigned int shift)
+{
+	if (shift) {
+		if (shift < 64)
+			val = val >> shift | ((val << (64 - shift)) != 0);
+		else
+			val = val != 0;
+	}
+	return val;
+}
+
+static inline u32 vfp_hi64to32jamming(u64 val)
+{
+	u32 v;
+	u32 highval = val >> 32;
+	u32 lowval = val & 0xffffffff;
+
+	if (lowval >= 1)
+		v = highval | 1;
+	else
+		v = highval;
+
+	return v;
+}
+
+static inline void add128(u64 *resh, u64 *resl, u64 nh, u64 nl, u64 mh, u64 ml)
+{
+	*resl = nl + ml;
+	*resh = nh + mh;
+	if (*resl < nl)
+		*resh += 1;
+}
+
+static inline void sub128(u64 *resh, u64 *resl, u64 nh, u64 nl, u64 mh, u64 ml)
+{
+	*resl = nl - ml;
+	*resh = nh - mh;
+	if (*resl > nl)
+		*resh -= 1;
+}
+
+static inline void mul64to128(u64 *resh, u64 *resl, u64 n, u64 m)
+{
+	u32 nh, nl, mh, ml;
+	u64 rh, rma, rmb, rl;
+
+	nl = n;
+	ml = m;
+	rl = (u64)nl * ml;
+
+	nh = n >> 32;
+	rma = (u64)nh * ml;
+
+	mh = m >> 32;
+	rmb = (u64)nl * mh;
+	rma += rmb;
+
+	rh = (u64)nh * mh;
+	rh += ((u64)(rma < rmb) << 32) + (rma >> 32);
+
+	rma <<= 32;
+	rl += rma;
+	rh += (rl < rma);
+
+	*resl = rl;
+	*resh = rh;
+}
+
+static inline void shift64left(u64 *resh, u64 *resl, u64 n)
+{
+	*resh = n >> 63;
+	*resl = n << 1;
+}
+
+static inline u64 vfp_hi64multiply64(u64 n, u64 m)
+{
+	u64 rh, rl;
+	mul64to128(&rh, &rl, n, m);
+	return rh | (rl != 0);
+}
+
+static inline u64 vfp_estimate_div128to64(u64 nh, u64 nl, u64 m)
+{
+	u64 mh, ml, remh, reml, termh, terml, z;
+
+	if (nh >= m)
+		return ~0ULL;
+	mh = m >> 32;
+	if (mh << 32 <= nh) {
+		z = 0xffffffff00000000ULL;
+	} else {
+		z = nh;
+		do_div(z, mh);
+		z <<= 32;
+	}
+	mul64to128(&termh, &terml, m, z);
+	sub128(&remh, &reml, nh, nl, termh, terml);
+	ml = m << 32;
+	while ((s64)remh < 0) {
+		z -= 0x100000000ULL;
+		add128(&remh, &reml, remh, reml, mh, ml);
+	}
+	remh = (remh << 32) | (reml >> 32);
+	if (mh << 32 <= remh) {
+		z |= 0xffffffff;
+	} else {
+		do_div(remh, mh);
+		z |= remh;
+	}
+	return z;
+}
+
+/*
+ * Operations on unpacked elements
+ */
+#define vfp_sign_negate(sign)	(sign ^ 0x8000)
+
+/*
+ * Single-precision
+ */
+struct vfp_single {
+	s16	exponent;
+	u16	sign;
+	u32	significand;
+};
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+extern s32 vfp_get_float(ARMul_State * state, unsigned int reg);
+extern void vfp_put_float(ARMul_State * state, s32 val, unsigned int reg);
+#ifdef __cplusplus
+ }
+#endif
+
+/*
+ * VFP_SINGLE_MANTISSA_BITS - number of bits in the mantissa
+ * VFP_SINGLE_EXPONENT_BITS - number of bits in the exponent
+ * VFP_SINGLE_LOW_BITS - number of low bits in the unpacked significand
+ *  which are not propagated to the float upon packing.
+ */
+#define VFP_SINGLE_MANTISSA_BITS	(23)
+#define VFP_SINGLE_EXPONENT_BITS	(8)
+#define VFP_SINGLE_LOW_BITS		(32 - VFP_SINGLE_MANTISSA_BITS - 2)
+#define VFP_SINGLE_LOW_BITS_MASK	((1 << VFP_SINGLE_LOW_BITS) - 1)
+
+/*
+ * The bit in an unpacked float which indicates that it is a quiet NaN
+ */
+#define VFP_SINGLE_SIGNIFICAND_QNAN	(1 << (VFP_SINGLE_MANTISSA_BITS - 1 + VFP_SINGLE_LOW_BITS))
+
+/*
+ * Operations on packed single-precision numbers
+ */
+#define vfp_single_packed_sign(v)	((v) & 0x80000000)
+#define vfp_single_packed_negate(v)	((v) ^ 0x80000000)
+#define vfp_single_packed_abs(v)	((v) & ~0x80000000)
+#define vfp_single_packed_exponent(v)	(((v) >> VFP_SINGLE_MANTISSA_BITS) & ((1 << VFP_SINGLE_EXPONENT_BITS) - 1))
+#define vfp_single_packed_mantissa(v)	((v) & ((1 << VFP_SINGLE_MANTISSA_BITS) - 1))
+
+/*
+ * Unpack a single-precision float.  Note that this returns the magnitude
+ * of the single-precision float mantissa with the 1. if necessary,
+ * aligned to bit 30.
+ */
+static inline void vfp_single_unpack(struct vfp_single *s, s32 val)
+{
+	u32 significand;
+
+	s->sign = vfp_single_packed_sign(val) >> 16,
+	s->exponent = vfp_single_packed_exponent(val);
+
+	significand = (u32) val;
+	significand = (significand << (32 - VFP_SINGLE_MANTISSA_BITS)) >> 2;
+	if (s->exponent && s->exponent != 255)
+		significand |= 0x40000000;
+	s->significand = significand;
+}
+
+/*
+ * Re-pack a single-precision float.  This assumes that the float is
+ * already normalised such that the MSB is bit 30, _not_ bit 31.
+ */
+static inline s32 vfp_single_pack(struct vfp_single *s)
+{
+	u32 val;
+	val = (s->sign << 16) +
+	      (s->exponent << VFP_SINGLE_MANTISSA_BITS) +
+	      (s->significand >> VFP_SINGLE_LOW_BITS);
+	return (s32)val;
+}
+
+#define VFP_NUMBER		(1<<0)
+#define VFP_ZERO		(1<<1)
+#define VFP_DENORMAL		(1<<2)
+#define VFP_INFINITY		(1<<3)
+#define VFP_NAN			(1<<4)
+#define VFP_NAN_SIGNAL		(1<<5)
+
+#define VFP_QNAN		(VFP_NAN)
+#define VFP_SNAN		(VFP_NAN|VFP_NAN_SIGNAL)
+
+static inline int vfp_single_type(struct vfp_single *s)
+{
+	int type = VFP_NUMBER;
+	if (s->exponent == 255) {
+		if (s->significand == 0)
+			type = VFP_INFINITY;
+		else if (s->significand & VFP_SINGLE_SIGNIFICAND_QNAN)
+			type = VFP_QNAN;
+		else
+			type = VFP_SNAN;
+	} else if (s->exponent == 0) {
+		if (s->significand == 0)
+			type |= VFP_ZERO;
+		else
+			type |= VFP_DENORMAL;
+	}
+	return type;
+}
+
+
+u32 vfp_single_normaliseround(ARMul_State* state, int sd, struct vfp_single *vs, u32 fpscr, u32 exceptions, const char *func);
+
+/*
+ * Double-precision
+ */
+struct vfp_double {
+	s16	exponent;
+	u16	sign;
+	u64	significand;
+};
+
+/*
+ * VFP_REG_ZERO is a special register number for vfp_get_double
+ * which returns (double)0.0.  This is useful for the compare with
+ * zero instructions.
+ */
+#ifdef CONFIG_VFPv3
+#define VFP_REG_ZERO	32
+#else
+#define VFP_REG_ZERO	16
+#endif
+#ifdef __cplusplus
+ extern "C" {
+#endif
+extern u64 vfp_get_double(ARMul_State * state, unsigned int reg);
+extern void vfp_put_double(ARMul_State * state, u64 val, unsigned int reg);
+#ifdef __cplusplus
+ }
+#endif
+#define VFP_DOUBLE_MANTISSA_BITS	(52)
+#define VFP_DOUBLE_EXPONENT_BITS	(11)
+#define VFP_DOUBLE_LOW_BITS		(64 - VFP_DOUBLE_MANTISSA_BITS - 2)
+#define VFP_DOUBLE_LOW_BITS_MASK	((1 << VFP_DOUBLE_LOW_BITS) - 1)
+
+/*
+ * The bit in an unpacked double which indicates that it is a quiet NaN
+ */
+#define VFP_DOUBLE_SIGNIFICAND_QNAN	(1ULL << (VFP_DOUBLE_MANTISSA_BITS - 1 + VFP_DOUBLE_LOW_BITS))
+
+/*
+ * Operations on packed single-precision numbers
+ */
+#define vfp_double_packed_sign(v)	((v) & (1ULL << 63))
+#define vfp_double_packed_negate(v)	((v) ^ (1ULL << 63))
+#define vfp_double_packed_abs(v)	((v) & ~(1ULL << 63))
+#define vfp_double_packed_exponent(v)	(((v) >> VFP_DOUBLE_MANTISSA_BITS) & ((1 << VFP_DOUBLE_EXPONENT_BITS) - 1))
+#define vfp_double_packed_mantissa(v)	((v) & ((1ULL << VFP_DOUBLE_MANTISSA_BITS) - 1))
+
+/*
+ * Unpack a double-precision float.  Note that this returns the magnitude
+ * of the double-precision float mantissa with the 1. if necessary,
+ * aligned to bit 62.
+ */
+static inline void vfp_double_unpack(struct vfp_double *s, s64 val)
+{
+	u64 significand;
+
+	s->sign = vfp_double_packed_sign(val) >> 48;
+	s->exponent = vfp_double_packed_exponent(val);
+
+	significand = (u64) val;
+	significand = (significand << (64 - VFP_DOUBLE_MANTISSA_BITS)) >> 2;
+	if (s->exponent && s->exponent != 2047)
+		significand |= (1ULL << 62);
+	s->significand = significand;
+}
+
+/*
+ * Re-pack a double-precision float.  This assumes that the float is
+ * already normalised such that the MSB is bit 30, _not_ bit 31.
+ */
+static inline s64 vfp_double_pack(struct vfp_double *s)
+{
+	u64 val;
+	val = ((u64)s->sign << 48) +
+	      ((u64)s->exponent << VFP_DOUBLE_MANTISSA_BITS) +
+	      (s->significand >> VFP_DOUBLE_LOW_BITS);
+	return (s64)val;
+}
+
+static inline int vfp_double_type(struct vfp_double *s)
+{
+	int type = VFP_NUMBER;
+	if (s->exponent == 2047) {
+		if (s->significand == 0)
+			type = VFP_INFINITY;
+		else if (s->significand & VFP_DOUBLE_SIGNIFICAND_QNAN)
+			type = VFP_QNAN;
+		else
+			type = VFP_SNAN;
+	} else if (s->exponent == 0) {
+		if (s->significand == 0)
+			type |= VFP_ZERO;
+		else
+			type |= VFP_DENORMAL;
+	}
+	return type;
+}
+
+u32 vfp_double_normaliseround(ARMul_State* state, int dd, struct vfp_double *vd, u32 fpscr, u32 exceptions, const char *func);
+
+u32 vfp_estimate_sqrt_significand(u32 exponent, u32 significand);
+
+/*
+ * A special flag to tell the normalisation code not to normalise.
+ */
+#define VFP_NAN_FLAG	0x100
+
+/*
+ * A bit pattern used to indicate the initial (unset) value of the
+ * exception mask, in case nothing handles an instruction.  This
+ * doesn't include the NAN flag, which get masked out before
+ * we check for an error.
+ */
+#define VFP_EXCEPTION_ERROR	((u32)-1 & ~VFP_NAN_FLAG)
+
+/*
+ * A flag to tell vfp instruction type.
+ *  OP_SCALAR - this operation always operates in scalar mode
+ *  OP_SD - the instruction exceptionally writes to a single precision result.
+ *  OP_DD - the instruction exceptionally writes to a double precision result.
+ *  OP_SM - the instruction exceptionally reads from a single precision operand.
+ */
+#define OP_SCALAR	(1 << 0)
+#define OP_SD		(1 << 1)
+#define OP_DD		(1 << 1)
+#define OP_SM		(1 << 2)
+
+struct op {
+	u32 (* const fn)(ARMul_State* state, int dd, int dn, int dm, u32 fpscr);
+	u32 flags;
+};
+
+static inline u32 fls(int x)
+{
+	int r = 32;
+
+	if (!x)
+		return 0;
+	if (!(x & 0xffff0000u)) {
+		x <<= 16;
+		r -= 16;
+	}
+	if (!(x & 0xff000000u)) {
+		x <<= 8;
+		r -= 8;
+	}
+	if (!(x & 0xf0000000u)) {
+		x <<= 4;
+		r -= 4;
+	}
+	if (!(x & 0xc0000000u)) {
+		x <<= 2;
+		r -= 2;
+	}
+	if (!(x & 0x80000000u)) {
+		x <<= 1;
+		r -= 1;
+	}
+	return r;
+
+}
+
+#endif

src/core/core.vcxproj

@@ -139,6 +139,7 @@
   <ItemGroup>
     <ClCompile Include="arm\disassembler\arm_disasm.cpp" />
     <ClCompile Include="arm\disassembler\load_symbol_map.cpp" />
+    <ClCompile Include="arm\interpreter\armcopro.cpp" />
     <ClCompile Include="arm\interpreter\armemu.cpp" />
     <ClCompile Include="arm\interpreter\arminit.cpp" />
     <ClCompile Include="arm\interpreter\armmmu.cpp" />
@@ -146,8 +147,19 @@
     <ClCompile Include="arm\interpreter\armsupp.cpp" />
     <ClCompile Include="arm\interpreter\armvirt.cpp" />
     <ClCompile Include="arm\interpreter\arm_interpreter.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\arm1176jzf_s_mmu.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\cache.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\maverick.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\rb.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\sa_mmu.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\tlb.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\wb.cpp" />
+    <ClCompile Include="arm\interpreter\mmu\xscale_copro.cpp" />
     <ClCompile Include="arm\interpreter\thumbemu.cpp" />
-    <ClCompile Include="arm\mmu\arm1176jzf_s_mmu.cpp" />
+    <ClCompile Include="arm\interpreter\vfp\vfp.cpp" />
+    <ClCompile Include="arm\interpreter\vfp\vfpdouble.cpp" />
+    <ClCompile Include="arm\interpreter\vfp\vfpinstr.cpp" />
+    <ClCompile Include="arm\interpreter\vfp\vfpsingle.cpp" />
     <ClCompile Include="core.cpp" />
     <ClCompile Include="core_timing.cpp" />
     <ClCompile Include="elf\elf_reader.cpp" />
@@ -181,12 +193,16 @@
     <ClInclude Include="arm\interpreter\armos.h" />
     <ClInclude Include="arm\interpreter\arm_interpreter.h" />
     <ClInclude Include="arm\interpreter\arm_regformat.h" />
+    <ClInclude Include="arm\interpreter\mmu\arm1176jzf_s_mmu.h" />
+    <ClInclude Include="arm\interpreter\mmu\cache.h" />
+    <ClInclude Include="arm\interpreter\mmu\rb.h" />
+    <ClInclude Include="arm\interpreter\mmu\sa_mmu.h" />
+    <ClInclude Include="arm\interpreter\mmu\tlb.h" />
+    <ClInclude Include="arm\interpreter\mmu\wb.h" />
     <ClInclude Include="arm\interpreter\skyeye_defs.h" />
-    <ClInclude Include="arm\mmu\arm1176jzf_s_mmu.h" />
+    <ClInclude Include="arm\interpreter\vfp\asm_vfp.h" />
-    <ClInclude Include="arm\mmu\cache.h" />
+    <ClInclude Include="arm\interpreter\vfp\vfp.h" />
-    <ClInclude Include="arm\mmu\rb.h" />
+    <ClInclude Include="arm\interpreter\vfp\vfp_helper.h" />
-    <ClInclude Include="arm\mmu\tlb.h" />
-    <ClInclude Include="arm\mmu\wb.h" />
     <ClInclude Include="core.h" />
     <ClInclude Include="core_timing.h" />
     <ClInclude Include="elf\elf_reader.h" />

src/core/core.vcxproj.filters

@@ -7,9 +7,6 @@
     <Filter Include="arm\disassembler">
       <UniqueIdentifier>{61100188-a726-4024-ab16-95ee242b446e}</UniqueIdentifier>
     </Filter>
-    <Filter Include="arm\mmu">
-      <UniqueIdentifier>{a64d3c8a-747a-491b-b782-6e2622bedf24}</UniqueIdentifier>
-    </Filter>
     <Filter Include="file_sys">
       <UniqueIdentifier>{7f618562-73d1-4f55-9628-887497c27654}</UniqueIdentifier>
     </Filter>
@@ -28,6 +25,12 @@
     <Filter Include="hle\service">
       <UniqueIdentifier>{812c5189-ca49-4704-b842-3ffad09092d3}</UniqueIdentifier>
     </Filter>
+    <Filter Include="arm\interpreter\vfp">
+      <UniqueIdentifier>{de62238f-a28e-4a33-8495-23fed6784588}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="arm\interpreter\mmu">
+      <UniqueIdentifier>{13ef9860-2ba0-47e9-a93d-b4052adab269}</UniqueIdentifier>
+    </Filter>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="arm\disassembler\arm_disasm.cpp">
@@ -57,9 +60,6 @@
     <ClCompile Include="arm\interpreter\thumbemu.cpp">
       <Filter>arm\interpreter</Filter>
     </ClCompile>
-    <ClCompile Include="arm\mmu\arm1176jzf_s_mmu.cpp">
-      <Filter>arm\mmu</Filter>
-    </ClCompile>
     <ClCompile Include="file_sys\directory_file_system.cpp">
       <Filter>file_sys</Filter>
     </ClCompile>
@@ -114,6 +114,45 @@
     <ClCompile Include="hle\config_mem.cpp">
       <Filter>hle</Filter>
     </ClCompile>
+    <ClCompile Include="arm\interpreter\vfp\vfp.cpp">
+      <Filter>arm\interpreter\vfp</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\vfp\vfpinstr.cpp">
+      <Filter>arm\interpreter\vfp</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\vfp\vfpdouble.cpp">
+      <Filter>arm\interpreter\vfp</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\vfp\vfpsingle.cpp">
+      <Filter>arm\interpreter\vfp</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\arm1176jzf_s_mmu.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\xscale_copro.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\sa_mmu.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\cache.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\rb.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\tlb.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\wb.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\armcopro.cpp">
+      <Filter>arm</Filter>
+    </ClCompile>
+    <ClCompile Include="arm\interpreter\mmu\maverick.cpp">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="arm\disassembler\arm_disasm.h">
@@ -143,21 +182,6 @@
     <ClInclude Include="arm\interpreter\skyeye_defs.h">
       <Filter>arm\interpreter</Filter>
     </ClInclude>
-    <ClInclude Include="arm\mmu\arm1176jzf_s_mmu.h">
-      <Filter>arm\mmu</Filter>
-    </ClInclude>
-    <ClInclude Include="arm\mmu\cache.h">
-      <Filter>arm\mmu</Filter>
-    </ClInclude>
-    <ClInclude Include="arm\mmu\rb.h">
-      <Filter>arm\mmu</Filter>
-    </ClInclude>
-    <ClInclude Include="arm\mmu\tlb.h">
-      <Filter>arm\mmu</Filter>
-    </ClInclude>
-    <ClInclude Include="arm\mmu\wb.h">
-      <Filter>arm\mmu</Filter>
-    </ClInclude>
     <ClInclude Include="file_sys\directory_file_system.h">
       <Filter>file_sys</Filter>
     </ClInclude>
@@ -223,6 +247,33 @@
     <ClInclude Include="hle\config_mem.h">
       <Filter>hle</Filter>
     </ClInclude>
+    <ClInclude Include="arm\interpreter\vfp\asm_vfp.h">
+      <Filter>arm\interpreter\vfp</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\vfp\vfp.h">
+      <Filter>arm\interpreter\vfp</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\vfp\vfp_helper.h">
+      <Filter>arm\interpreter\vfp</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\mmu\arm1176jzf_s_mmu.h">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\mmu\cache.h">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\mmu\rb.h">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\mmu\tlb.h">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\mmu\wb.h">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClInclude>
+    <ClInclude Include="arm\interpreter\mmu\sa_mmu.h">
+      <Filter>arm\interpreter\mmu</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Text Include="CMakeLists.txt" />

src/core/hle/coprocessor.cpp

@@ -9,42 +9,26 @@
 
 namespace HLE {
 
-/// Data synchronization barrier
-u32 DataSynchronizationBarrier() {
-    return 0;
-}
-
 /// Returns the coprocessor (in this case, syscore) command buffer pointer
 Addr GetThreadCommandBuffer() {
     // Called on insruction: mrc p15, 0, r0, c13, c0, 3
     return Memory::KERNEL_MEMORY_VADDR;
 }
 
-/// Call an MCR (move to coprocessor from ARM register) instruction in HLE
-s32 CallMCR(u32 instruction, u32 value) {
-    CoprocessorOperation operation = (CoprocessorOperation)((instruction >> 20) & 0xFF);
-    ERROR_LOG(OSHLE, "unimplemented MCR instruction=0x%08X, operation=%02X, value=%08X", 
-        instruction, operation, value);
-    return 0;
-}
-
 /// Call an MRC (move to ARM register from coprocessor) instruction in HLE
 s32 CallMRC(u32 instruction) {
     CoprocessorOperation operation = (CoprocessorOperation)((instruction >> 20) & 0xFF);
 
     switch (operation) {
 
-    case DATA_SYNCHRONIZATION_BARRIER:
-        return DataSynchronizationBarrier();
-
     case CALL_GET_THREAD_COMMAND_BUFFER:
         return GetThreadCommandBuffer();
 
     default:
-        ERROR_LOG(OSHLE, "unimplemented MRC instruction 0x%08X", instruction);
+        //DEBUG_LOG(OSHLE, "unknown MRC call 0x%08X", instruction);
         break;
     }
-    return 0;
+    return -1;
 }
 
 } // namespace

src/core/hle/coprocessor.h

@@ -14,9 +14,6 @@ enum CoprocessorOperation {
     CALL_GET_THREAD_COMMAND_BUFFER  = 0xE1,
 };
 
-/// Call an MCR (move to coprocessor from ARM register) instruction in HLE
-s32 CallMCR(u32 instruction, u32 value);
-
 /// Call an MRC (move to ARM register from coprocessor) instruction in HLE
 s32 CallMRC(u32 instruction);