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@ -6,7 +6,6 @@
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#include <array>
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#include <optional>
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#include <vector>
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#include "common/bit_field.h"
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#include "common/common_types.h"
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@ -28,75 +27,11 @@ public:
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void Execute(u32 offset, std::size_t num_parameters, const u32* parameters);
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private:
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enum class Operation : u32 {
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ALU = 0,
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AddImmediate = 1,
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ExtractInsert = 2,
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ExtractShiftLeftImmediate = 3,
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ExtractShiftLeftRegister = 4,
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Read = 5,
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Unused = 6, // This operation doesn't seem to be a valid encoding.
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Branch = 7,
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};
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enum class ALUOperation : u32;
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enum class BranchCondition : u32;
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enum class ResultOperation : u32;
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enum class ALUOperation : u32 {
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Add = 0,
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AddWithCarry = 1,
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Subtract = 2,
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SubtractWithBorrow = 3,
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// Operations 4-7 don't seem to be valid encodings.
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Xor = 8,
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Or = 9,
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And = 10,
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AndNot = 11,
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Nand = 12
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};
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enum class ResultOperation : u32 {
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IgnoreAndFetch = 0,
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Move = 1,
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MoveAndSetMethod = 2,
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FetchAndSend = 3,
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MoveAndSend = 4,
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FetchAndSetMethod = 5,
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MoveAndSetMethodFetchAndSend = 6,
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MoveAndSetMethodSend = 7
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};
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enum class BranchCondition : u32 {
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Zero = 0,
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NotZero = 1,
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};
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union Opcode {
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u32 raw;
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BitField<0, 3, Operation> operation;
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BitField<4, 3, ResultOperation> result_operation;
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BitField<4, 1, BranchCondition> branch_condition;
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BitField<5, 1, u32>
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branch_annul; // If set on a branch, then the branch doesn't have a delay slot.
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BitField<7, 1, u32> is_exit;
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BitField<8, 3, u32> dst;
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BitField<11, 3, u32> src_a;
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BitField<14, 3, u32> src_b;
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// The signed immediate overlaps the second source operand and the alu operation.
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BitField<14, 18, s32> immediate;
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BitField<17, 5, ALUOperation> alu_operation;
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// Bitfield instructions data
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BitField<17, 5, u32> bf_src_bit;
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BitField<22, 5, u32> bf_size;
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BitField<27, 5, u32> bf_dst_bit;
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u32 GetBitfieldMask() const {
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return (1 << bf_size) - 1;
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}
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s32 GetBranchTarget() const {
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return static_cast<s32>(immediate * sizeof(u32));
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}
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};
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union Opcode;
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union MethodAddress {
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u32 raw;
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@ -149,9 +84,10 @@ private:
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Engines::Maxwell3D& maxwell3d;
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u32 pc; ///< Current program counter
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std::optional<u32>
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delayed_pc; ///< Program counter to execute at after the delay slot is executed.
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/// Current program counter
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u32 pc;
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/// Program counter to execute at after the delay slot is executed.
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std::optional<u32> delayed_pc;
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static constexpr std::size_t NumMacroRegisters = 8;
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