mirror of
https://github.com/Lime3DS/Lime3DS.git
synced 2024-12-25 01:11:48 +01:00
Merge pull request #382 from lioncash/sx
dyncom: Implement SXTAB16 and SXTB16
This commit is contained in:
commit
092a67cefb
@ -2766,7 +2766,29 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(sxtab)(unsigned int inst, int index){
|
||||
|
||||
return inst_base;
|
||||
}
|
||||
ARM_INST_PTR INTERPRETER_TRANSLATE(sxtab16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SXTAB16"); }
|
||||
|
||||
ARM_INST_PTR INTERPRETER_TRANSLATE(sxtab16)(unsigned int inst, int index)
|
||||
{
|
||||
arm_inst* const inst_base = (arm_inst*)AllocBuffer(sizeof(arm_inst) + sizeof(sxtab_inst));
|
||||
sxtab_inst* const inst_cream = (sxtab_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->rotate = BITS(inst, 10, 11);
|
||||
|
||||
return inst_base;
|
||||
}
|
||||
ARM_INST_PTR INTERPRETER_TRANSLATE(sxtb16)(unsigned int inst, int index)
|
||||
{
|
||||
return INTERPRETER_TRANSLATE(sxtab16)(inst, index);
|
||||
}
|
||||
|
||||
ARM_INST_PTR INTERPRETER_TRANSLATE(sxtah)(unsigned int inst, int index){
|
||||
LOG_WARNING(Core_ARM11, "SXTAH untested");
|
||||
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(sxtah_inst));
|
||||
@ -2784,7 +2806,7 @@ ARM_INST_PTR INTERPRETER_TRANSLATE(sxtah)(unsigned int inst, int index){
|
||||
|
||||
return inst_base;
|
||||
}
|
||||
ARM_INST_PTR INTERPRETER_TRANSLATE(sxtb16)(unsigned int inst, int index) { UNIMPLEMENTED_INSTRUCTION("SXTB16"); }
|
||||
|
||||
ARM_INST_PTR INTERPRETER_TRANSLATE(teq)(unsigned int inst, int index)
|
||||
{
|
||||
arm_inst *inst_base = (arm_inst *)AllocBuffer(sizeof(arm_inst) + sizeof(teq_inst));
|
||||
@ -5896,7 +5918,40 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
|
||||
FETCH_INST;
|
||||
GOTO_NEXT_INST;
|
||||
}
|
||||
|
||||
SXTAB16_INST:
|
||||
SXTB16_INST:
|
||||
{
|
||||
if (inst_base->cond == 0xE || CondPassed(cpu, inst_base->cond)) {
|
||||
sxtab_inst* const inst_cream = (sxtab_inst*)inst_base->component;
|
||||
|
||||
const u8 rotation = inst_cream->rotate * 8;
|
||||
u32 rm_val = RM;
|
||||
u32 rn_val = RN;
|
||||
|
||||
if (rotation)
|
||||
rm_val = ((rm_val << (32 - rotation)) | (rm_val >> rotation));
|
||||
|
||||
// SXTB16
|
||||
if (inst_cream->Rn == 15) {
|
||||
u32 lo = (u32)(s8)rm_val;
|
||||
u32 hi = (u32)(s8)(rm_val >> 16);
|
||||
RD = (lo | (hi << 16));
|
||||
}
|
||||
// SXTAB16
|
||||
else {
|
||||
u32 lo = (rn_val & 0xFFFF) + (u32)(s8)(rm_val & 0xFF);
|
||||
u32 hi = ((rn_val >> 16) & 0xFFFF) + (u32)(s8)((rm_val >> 16) & 0xFF);
|
||||
RD = (lo | (hi << 16));
|
||||
}
|
||||
}
|
||||
|
||||
cpu->Reg[15] += GET_INST_SIZE(cpu);
|
||||
INC_PC(sizeof(sxtab_inst));
|
||||
FETCH_INST;
|
||||
GOTO_NEXT_INST;
|
||||
}
|
||||
|
||||
SXTAH_INST:
|
||||
{
|
||||
sxtah_inst *inst_cream = (sxtah_inst *)inst_base->component;
|
||||
@ -5915,7 +5970,7 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
|
||||
FETCH_INST;
|
||||
GOTO_NEXT_INST;
|
||||
}
|
||||
SXTB16_INST:
|
||||
|
||||
TEQ_INST:
|
||||
{
|
||||
if ((inst_base->cond == 0xe) || CondPassed(cpu, inst_base->cond)) {
|
||||
|
Loading…
Reference in New Issue
Block a user