diff options
Diffstat (limited to 'src/core/arm')
| -rw-r--r-- | src/core/arm/dyncom/arm_dyncom_interpreter.cpp | 118 |
1 files changed, 110 insertions, 8 deletions
diff --git a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp index 5908a4ccf..f2ea0e9dd 100644 --- a/src/core/arm/dyncom/arm_dyncom_interpreter.cpp +++ b/src/core/arm/dyncom/arm_dyncom_interpreter.cpp @@ -2252,13 +2252,48 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(sel)(unsigned int inst, int index) return inst_base; } + ARM_INST_PTR INTERPRETER_TRANSLATE(setend)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SETEND"); } -ARM_INST_PTR INTERPRETER_TRANSLATE(shadd16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHADD16"); } -ARM_INST_PTR INTERPRETER_TRANSLATE(shadd8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHADD8"); } -ARM_INST_PTR INTERPRETER_TRANSLATE(shaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHADDSUBX"); } -ARM_INST_PTR INTERPRETER_TRANSLATE(shsub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHSUB16"); } -ARM_INST_PTR INTERPRETER_TRANSLATE(shsub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHSUB8"); } -ARM_INST_PTR INTERPRETER_TRANSLATE(shsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SHSUBADDX"); } + +ARM_INST_PTR INTERPRETER_TRANSLATE(shadd8)(unsigned int inst, int index) +{ + arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(generic_arm_inst)); + generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component; + + inst_base->cond = BITS(inst, 28, 31); + inst_base->idx = index; + inst_base->br = NON_BRANCH; + inst_base->load_r15 = 0; + + inst_cream->op1 = BITS(inst, 20, 21); + inst_cream->op2 = BITS(inst, 5, 7); + inst_cream->Rm = BITS(inst, 0, 3); + inst_cream->Rn = BITS(inst, 16, 19); + inst_cream->Rd = BITS(inst, 12, 15); + + return inst_base; +} +ARM_INST_PTR INTERPRETER_TRANSLATE(shadd16)(unsigned int inst, int index) +{ + return INTERPRETER_TRANSLATE(shadd8)(inst, index); +} +ARM_INST_PTR INTERPRETER_TRANSLATE(shaddsubx)(unsigned int inst, int index) +{ + return INTERPRETER_TRANSLATE(shadd8)(inst, index); +} +ARM_INST_PTR INTERPRETER_TRANSLATE(shsub8)(unsigned int inst, int index) +{ + return INTERPRETER_TRANSLATE(shadd8)(inst, index); +} +ARM_INST_PTR INTERPRETER_TRANSLATE(shsub16)(unsigned int inst, int index) +{ + return INTERPRETER_TRANSLATE(shadd8)(inst, index); +} +ARM_INST_PTR INTERPRETER_TRANSLATE(shsubaddx)(unsigned int inst, int index) +{ + return INTERPRETER_TRANSLATE(shadd8)(inst, index); +} + ARM_INST_PTR INTERPRETER_TRANSLATE(smla)(unsigned int inst, int index) { arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(smla_inst)); @@ -5229,12 +5264,79 @@ unsigned InterpreterMainLoop(ARMul_State* state) { } SETEND_INST: - SHADD16_INST: + SHADD8_INST: + SHADD16_INST: SHADDSUBX_INST: - SHSUB16_INST: SHSUB8_INST: + SHSUB16_INST: SHSUBADDX_INST: + { + if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) { + generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component; + + const u8 op2 = inst_cream->op2; + const u32 rm_val = RM; + const u32 rn_val = RN; + + if (op2 == 0x00 || op2 == 0x01 || op2 == 0x02 || op2 == 0x03) { + s32 lo_result = 0; + s32 hi_result = 0; + + // SHADD16 + if (op2 == 0x00) { + lo_result = ((s16)(rn_val & 0xFFFF) + (s16)(rm_val & 0xFFFF)) >> 1; + hi_result = ((s16)((rn_val >> 16) & 0xFFFF) + (s16)((rm_val >> 16) & 0xFFFF)) >> 1; + } + // SHASX + else if (op2 == 0x01) { + lo_result = ((s16)(rn_val & 0xFFFF) - (s16)((rm_val >> 16) & 0xFFFF)) >> 1; + hi_result = ((s16)((rn_val >> 16) & 0xFFFF) + (s16)(rm_val & 0xFFFF)) >> 1; + } + // SHSAX + else if (op2 == 0x02) { + lo_result = ((s16)(rn_val & 0xFFFF) + (s16)((rm_val >> 16) & 0xFFFF)) >> 1; + hi_result = ((s16)((rn_val >> 16) & 0xFFFF) - (s16)(rm_val & 0xFFFF)) >> 1; + } + // SHSUB16 + else if (op2 == 0x03) { + lo_result = ((s16)(rn_val & 0xFFFF) - (s16)(rm_val & 0xFFFF)) >> 1; + hi_result = ((s16)((rn_val >> 16) & 0xFFFF) - (s16)((rm_val >> 16) & 0xFFFF)) >> 1; + } + + RD = ((lo_result & 0xFFFF) | ((hi_result & 0xFFFF) << 16)); + } + else if (op2 == 0x04 || op2 == 0x07) { + s16 lo_val1, lo_val2; + s16 hi_val1, hi_val2; + + // SHADD8 + if (op2 == 0x04) { + lo_val1 = ((s8)(rn_val & 0xFF) + (s8)(rm_val & 0xFF)) >> 1; + lo_val2 = ((s8)((rn_val >> 8) & 0xFF) + (s8)((rm_val >> 8) & 0xFF)) >> 1; + + hi_val1 = ((s8)((rn_val >> 16) & 0xFF) + (s8)((rm_val >> 16) & 0xFF)) >> 1; + hi_val2 = ((s8)((rn_val >> 24) & 0xFF) + (s8)((rm_val >> 24) & 0xFF)) >> 1; + } + // SHSUB8 + else { + lo_val1 = ((s8)(rn_val & 0xFF) - (s8)(rm_val & 0xFF)) >> 1; + lo_val2 = ((s8)((rn_val >> 8) & 0xFF) - (s8)((rm_val >> 8) & 0xFF)) >> 1; + + hi_val1 = ((s8)((rn_val >> 16) & 0xFF) - (s8)((rm_val >> 16) & 0xFF)) >> 1; + hi_val2 = ((s8)((rn_val >> 24) & 0xFF) - (s8)((rm_val >> 24) & 0xFF)) >> 1; + } + + RD = (lo_val1 & 0xFF) | ((lo_val2 & 0xFF) << 8) | ((hi_val1 & 0xFF) << 16) | ((hi_val2 & 0xFF) << 24); + } + } + + cpu->Reg[15] += GET_INST_SIZE(cpu); + INC_PC(sizeof(generic_arm_inst)); + FETCH_INST; + GOTO_NEXT_INST; + } + SMLA_INST: { if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) { |