53 lines
859 B
C++
53 lines
859 B
C++
#include "ARM.h"
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namespace ARMInterpreter
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{
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s32 A_B(ARM* cpu)
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{
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s32 offset = (s32)(cpu->CurInstr << 8) >> 6;
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cpu->JumpTo(cpu->R[15] + offset);
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return C_S(2) + C_N(1);
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}
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s32 A_BL(ARM* cpu)
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{
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s32 offset = (s32)(cpu->CurInstr << 8) >> 6;
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cpu->R[14] = cpu->R[15] - 4;
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cpu->JumpTo(cpu->R[15] + offset);
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return C_S(2) + C_N(1);
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}
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s32 A_BLX_IMM(ARM* cpu)
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{
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s32 offset = (s32)(cpu->CurInstr << 8) >> 6;
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if (cpu->CurInstr & 0x01000000) offset += 2;
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cpu->R[14] = cpu->R[15] - 4;
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cpu->JumpTo(cpu->R[15] + offset + 1);
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return C_S(2) + C_N(1);
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}
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s32 T_BCOND(ARM* cpu)
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{
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if (cpu->CheckCondition((cpu->CurInstr >> 8) & 0xF))
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{
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s32 offset = (s32)(cpu->CurInstr << 24) >> 23;
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cpu->JumpTo(cpu->R[15] + offset + 1);
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return C_S(2) + C_N(1);
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}
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else
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return C_S(1);
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}
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}
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