mirror of
https://github.com/citra-mirror/citra.git
synced 2024-08-25 05:37:20 +02:00
dyncom: Implement USAD8/USADA8
This commit is contained in:
parent
762f16c4ad
commit
7d322b5c6f
@ -3287,8 +3287,28 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(uqsubaddx)(unsigned int inst, int index)
|
|||||||
{
|
{
|
||||||
return INTERPRETER_TRANSLATE(uqadd8)(inst, index);
|
return INTERPRETER_TRANSLATE(uqadd8)(inst, index);
|
||||||
}
|
}
|
||||||
ARM_INST_PTR INTERPRETER_TRANSLATE(usad8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USAD8"); }
|
ARM_INST_PTR INTERPRETER_TRANSLATE(usada8)(unsigned int inst, int index)
|
||||||
ARM_INST_PTR INTERPRETER_TRANSLATE(usada8)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USADA8"); }
|
{
|
||||||
|
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, 24);
|
||||||
|
inst_cream->op2 = BITS(inst, 5, 7);
|
||||||
|
inst_cream->Rm = BITS(inst, 8, 11);
|
||||||
|
inst_cream->Rn = BITS(inst, 0, 3);
|
||||||
|
inst_cream->Ra = BITS(inst, 12, 15);
|
||||||
|
|
||||||
|
return inst_base;
|
||||||
|
}
|
||||||
|
ARM_INST_PTR INTERPRETER_TRANSLATE(usad8)(unsigned int inst, int index)
|
||||||
|
{
|
||||||
|
return INTERPRETER_TRANSLATE(usada8)(inst, index);
|
||||||
|
}
|
||||||
ARM_INST_PTR INTERPRETER_TRANSLATE(usat)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USAT"); }
|
ARM_INST_PTR INTERPRETER_TRANSLATE(usat)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USAT"); }
|
||||||
ARM_INST_PTR INTERPRETER_TRANSLATE(usat16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USAT16"); }
|
ARM_INST_PTR INTERPRETER_TRANSLATE(usat16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USAT16"); }
|
||||||
ARM_INST_PTR INTERPRETER_TRANSLATE(usub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUB16"); }
|
ARM_INST_PTR INTERPRETER_TRANSLATE(usub16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("USUB16"); }
|
||||||
@ -6973,6 +6993,36 @@ unsigned InterpreterMainLoop(ARMul_State* state)
|
|||||||
|
|
||||||
USAD8_INST:
|
USAD8_INST:
|
||||||
USADA8_INST:
|
USADA8_INST:
|
||||||
|
{
|
||||||
|
INC_ICOUNTER;
|
||||||
|
|
||||||
|
if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
|
||||||
|
generic_arm_inst* inst_cream = (generic_arm_inst*)inst_base->component;
|
||||||
|
|
||||||
|
const u8 ra_idx = inst_cream->Ra;
|
||||||
|
const u32 rm_val = RM;
|
||||||
|
const u32 rn_val = RN;
|
||||||
|
|
||||||
|
const u8 diff1 = ARMul_UnsignedAbsoluteDifference(rn_val & 0xFF, rm_val & 0xFF);
|
||||||
|
const u8 diff2 = ARMul_UnsignedAbsoluteDifference((rn_val >> 8) & 0xFF, (rm_val >> 8) & 0xFF);
|
||||||
|
const u8 diff3 = ARMul_UnsignedAbsoluteDifference((rn_val >> 16) & 0xFF, (rm_val >> 16) & 0xFF);
|
||||||
|
const u8 diff4 = ARMul_UnsignedAbsoluteDifference((rn_val >> 24) & 0xFF, (rm_val >> 24) & 0xFF);
|
||||||
|
|
||||||
|
u32 finalDif = (diff1 + diff2 + diff3 + diff4);
|
||||||
|
|
||||||
|
// Op is USADA8 if true.
|
||||||
|
if (ra_idx != 15)
|
||||||
|
finalDif += cpu->Reg[ra_idx];
|
||||||
|
|
||||||
|
RD = finalDif;
|
||||||
|
}
|
||||||
|
|
||||||
|
cpu->Reg[15] += GET_INST_SIZE(cpu);
|
||||||
|
INC_PC(sizeof(generic_arm_inst));
|
||||||
|
FETCH_INST;
|
||||||
|
GOTO_NEXT_INST;
|
||||||
|
}
|
||||||
|
|
||||||
USAT_INST:
|
USAT_INST:
|
||||||
USAT16_INST:
|
USAT16_INST:
|
||||||
USUB16_INST:
|
USUB16_INST:
|
||||||
|
@ -794,6 +794,7 @@ extern u8 ARMul_UnsignedSaturatedAdd8(u8, u8);
|
|||||||
extern u16 ARMul_UnsignedSaturatedAdd16(u16, u16);
|
extern u16 ARMul_UnsignedSaturatedAdd16(u16, u16);
|
||||||
extern u8 ARMul_UnsignedSaturatedSub8(u8, u8);
|
extern u8 ARMul_UnsignedSaturatedSub8(u8, u8);
|
||||||
extern u16 ARMul_UnsignedSaturatedSub16(u16, u16);
|
extern u16 ARMul_UnsignedSaturatedSub16(u16, u16);
|
||||||
|
extern u8 ARMul_UnsignedAbsoluteDifference(u8, u8);
|
||||||
|
|
||||||
#define DIFF_LOG 0
|
#define DIFF_LOG 0
|
||||||
#define SAVE_LOG 0
|
#define SAVE_LOG 0
|
||||||
|
@ -600,7 +600,6 @@ extern ARMword ARMul_SwitchMode (ARMul_State *, ARMword, ARMword);
|
|||||||
extern ARMword ARMul_Align (ARMul_State *, ARMword, ARMword);
|
extern ARMword ARMul_Align (ARMul_State *, ARMword, ARMword);
|
||||||
extern ARMword ARMul_SwitchMode (ARMul_State *, ARMword, ARMword);
|
extern ARMword ARMul_SwitchMode (ARMul_State *, ARMword, ARMword);
|
||||||
extern void ARMul_MSRCpsr (ARMul_State *, ARMword, ARMword);
|
extern void ARMul_MSRCpsr (ARMul_State *, ARMword, ARMword);
|
||||||
extern u8 ARMul_UnsignedAbsoluteDifference(u8, u8);
|
|
||||||
extern void ARMul_SubOverflow (ARMul_State *, ARMword, ARMword, ARMword);
|
extern void ARMul_SubOverflow (ARMul_State *, ARMword, ARMword, ARMword);
|
||||||
extern void ARMul_AddOverflow (ARMul_State *, ARMword, ARMword, ARMword);
|
extern void ARMul_AddOverflow (ARMul_State *, ARMword, ARMword, ARMword);
|
||||||
extern void ARMul_AddOverflowQ(ARMul_State*, ARMword, ARMword);
|
extern void ARMul_AddOverflowQ(ARMul_State*, ARMword, ARMword);
|
||||||
|
Loading…
Reference in New Issue
Block a user