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dyncom: Fix an indexing bug in STM 

Previously it would write the contents of register 13 for the case where the link register (r14) is supposed to be written.
This commit is contained in:
Lioncash 2015-03-08 21:53:03 -04:00
parent 36dab56c31
commit 386dbab5ea
1 changed files with 4 additions and 5 deletions
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9
src/core/arm/dyncom/arm_dyncom_interpreter.cpp
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@ -5976,13 +5976,12 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
ldst_inst* inst_cream = (ldst_inst*)inst_base->component; ldst_inst* inst_cream = (ldst_inst*)inst_base->component;
unsigned int inst = inst_cream->inst; unsigned int inst = inst_cream->inst;
int i;
unsigned int Rn = BITS(inst, 16, 19); unsigned int Rn = BITS(inst, 16, 19);
unsigned int old_RN = cpu->Reg[Rn]; unsigned int old_RN = cpu->Reg[Rn];
inst_cream->get_addr(cpu, inst_cream->inst, addr, 0); inst_cream->get_addr(cpu, inst_cream->inst, addr, 0);
if (BIT(inst_cream->inst, 22) == 1) { if (BIT(inst_cream->inst, 22) == 1) {
for (i = 0; i < 13; i++) { for (int i = 0; i < 13; i++) {
if (BIT(inst_cream->inst, i)) { if (BIT(inst_cream->inst, i)) {
Memory::Write32(addr, cpu->Reg[i]); Memory::Write32(addr, cpu->Reg[i]);
addr += 4; addr += 4;
@ -5990,7 +5989,7 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
} }
if (BIT(inst_cream->inst, 13)) { if (BIT(inst_cream->inst, 13)) {
if (cpu->Mode == USER32MODE) if (cpu->Mode == USER32MODE)
Memory::Write32(addr, cpu->Reg[i]); Memory::Write32(addr, cpu->Reg[13]);
else else
Memory::Write32(addr, cpu->Reg_usr[0]); Memory::Write32(addr, cpu->Reg_usr[0]);
@ -5998,7 +5997,7 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
} }
if (BIT(inst_cream->inst, 14)) { if (BIT(inst_cream->inst, 14)) {
if (cpu->Mode == USER32MODE) if (cpu->Mode == USER32MODE)
Memory::Write32(addr, cpu->Reg[i]); Memory::Write32(addr, cpu->Reg[14]);
else else
Memory::Write32(addr, cpu->Reg_usr[1]); Memory::Write32(addr, cpu->Reg_usr[1]);
@ -6008,7 +6007,7 @@ unsigned InterpreterMainLoop(ARMul_State* state) {
Memory::Write32(addr, cpu->Reg_usr[1] + 8); Memory::Write32(addr, cpu->Reg_usr[1] + 8);
} }
} else { } else {
for (i = 0; i < 15; i++) { for (int i = 0; i < 15; i++) {
if (BIT(inst_cream->inst, i)) { if (BIT(inst_cream->inst, i)) {
if (i == Rn) if (i == Rn)
Memory::Write32(addr, old_RN); Memory::Write32(addr, old_RN);