Forks/citra
1
0
Fork 0
mirror of https://github.com/PabloMK7/citra.git synced 2025-10-31 13:50:03 +00:00
Code Issues Projects Releases Packages Wiki Activity

dyncom: Move over QADD16/QASX/QSAX/QSUB16

Browse source
This commit is contained in:
Lioncash 2014-12-22 01:09:42 -05:00
parent 2188af4a65
commit 97f3e884d2
1 changed files with 87 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

94
src/core/arm/dyncom/arm_dyncom_interpreter.cpp
View file

@ -2390,15 +2390,41 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(pld)(unsigned int inst, int index)
return inst_base; return inst_base;
} }
ARM_INST_PTR INTERPRETER_TRANSLATE(qadd)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qadd)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qadd16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD16"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qadd8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD8"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qadd8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADD8"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qaddsubx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QADDSUBX"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qadd16)(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->Rm = BITS(inst, 0, 3);
inst_cream->Rn = BITS(inst, 16, 19);
inst_cream->Rd = BITS(inst, 12, 15);
inst_cream->op1 = BITS(inst, 20, 21);
inst_cream->op2 = BITS(inst, 5, 7);
return inst_base;
}
ARM_INST_PTR INTERPRETER_TRANSLATE(qaddsubx)(unsigned int inst, int index)
{
return INTERPRETER_TRANSLATE(qadd16)(inst, index);
}
ARM_INST_PTR INTERPRETER_TRANSLATE(qdadd)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QDADD"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qdadd)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QDADD"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qdsub)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QDSUB"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qdsub)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QDSUB"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qsub)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qsub)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qsub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB16"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qsub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB8"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qsub8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUB8"); }
ARM_INST_PTR INTERPRETER_TRANSLATE(qsubaddx)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("QSUBADDX"); } ARM_INST_PTR INTERPRETER_TRANSLATE(qsub16)(unsigned int inst, int index)
{
return INTERPRETER_TRANSLATE(qadd16)(inst, index);
}
ARM_INST_PTR INTERPRETER_TRANSLATE(qsubaddx)(unsigned int inst, int index)
{
return INTERPRETER_TRANSLATE(qadd16)(inst, index);
}
ARM_INST_PTR INTERPRETER_TRANSLATE(rev)(unsigned int inst, int index) ARM_INST_PTR INTERPRETER_TRANSLATE(rev)(unsigned int inst, int index)
{ {
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(rev_inst)); arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(rev_inst));
@ -5561,15 +5587,69 @@ unsigned InterpreterMainLoop(ARMul_State* state)
GOTO_NEXT_INST; GOTO_NEXT_INST;
} }
QADD_INST: QADD_INST:
QADD16_INST:
QADD8_INST: QADD8_INST:
QADD16_INST:
QADDSUBX_INST: QADDSUBX_INST:
QSUB16_INST:
QSUBADDX_INST:
{
INC_ICOUNTER;
if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
generic_arm_inst* const inst_cream = (generic_arm_inst*)inst_base->component;
const s16 rm_lo = (RM & 0xFFFF);
const s16 rm_hi = ((RM >> 16) & 0xFFFF);
const s16 rn_lo = (RN & 0xFFFF);
const s16 rn_hi = ((RN >> 16) & 0xFFFF);
const u8 op2 = inst_cream->op2;
s32 lo_result = 0;
s32 hi_result = 0;
// QADD16
if (op2 == 0x00) {
lo_result = (rn_lo + rm_lo);
hi_result = (rn_hi + rm_hi);
}
// QASX
else if (op2 == 0x01) {
lo_result = (rn_lo - rm_hi);
hi_result = (rn_hi + rm_lo);
}
// QSAX
else if (op2 == 0x02) {
lo_result = (rn_lo + rm_hi);
hi_result = (rn_hi - rm_lo);
}
// QSUB16
else if (op2 == 0x03) {
lo_result = (rn_lo - rm_lo);
hi_result = (rn_hi - rm_hi);
}
if (lo_result > 0x7FFF)
lo_result = 0x7FFF;
else if (lo_result < -0x8000)
lo_result = -0x8000;
if (hi_result > 0x7FFF)
hi_result = 0x7FFF;
else if (hi_result < -0x8000)
hi_result = -0x8000;
RD = (lo_result & 0xFFFF) | ((hi_result & 0xFFFF) << 16);
}
cpu->Reg[15] += GET_INST_SIZE(cpu);
INC_PC(sizeof(generic_arm_inst));
FETCH_INST;
GOTO_NEXT_INST;
}
QDADD_INST: QDADD_INST:
QDSUB_INST: QDSUB_INST:
QSUB_INST: QSUB_INST:
QSUB16_INST:
QSUB8_INST: QSUB8_INST:
QSUBADDX_INST:
REV_INST: REV_INST:
{ {
INC_ICOUNTER; INC_ICOUNTER;