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Regression fixes

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dingusdev 2024-03-24 16:34:42 -07:00
parent 505b5e6468
commit eab021a5cb
2 changed files with 4 additions and 4 deletions
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2
cpu/ppc/ppcmacros.h
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@ -94,7 +94,7 @@ along with this program. If not, see <https://www.gnu.org/licenses/>.
uint32_t ppc_result_b = ppc_state.gpr[reg_b]; uint32_t ppc_result_b = ppc_state.gpr[reg_b];
#define ppc_store_iresult_reg(reg, ppc_result)\ #define ppc_store_iresult_reg(reg, ppc_result)\
ppc_state.gpr[(reg)] = ppc_result; ppc_state.gpr[reg] = ppc_result;
#define ppc_store_sfpresult_int(reg, ppc_result64_d)\ #define ppc_store_sfpresult_int(reg, ppc_result64_d)\
ppc_state.fpr[(reg)].int64_r = ppc_result64_d; ppc_state.fpr[(reg)].int64_r = ppc_result64_d;

6
cpu/ppc/ppcopcodes.cpp
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@ -512,7 +512,7 @@ void dppc_interpreter::ppc_mulli() {
} }
void dppc_interpreter::ppc_divw() { void dppc_interpreter::ppc_divw() {
uint32_t ppc_result_d; uint32_t ppc_result_d = 0;
ppc_grab_regsdab(ppc_cur_instruction); ppc_grab_regsdab(ppc_cur_instruction);
if (!ppc_result_b) { /* handle the "anything / 0" case */ if (!ppc_result_b) { /* handle the "anything / 0" case */
@ -542,7 +542,7 @@ void dppc_interpreter::ppc_divw() {
} }
void dppc_interpreter::ppc_divwu() { void dppc_interpreter::ppc_divwu() {
uint32_t ppc_result_d; uint32_t ppc_result_d = 0;
ppc_grab_regsdab(ppc_cur_instruction); ppc_grab_regsdab(ppc_cur_instruction);
if (!ppc_result_b) { /* division by zero */ if (!ppc_result_b) { /* division by zero */
@ -604,7 +604,7 @@ void dppc_interpreter::ppc_sraw() {
if (ppc_result_b & 0x20) { if (ppc_result_b & 0x20) {
// fill rA with the sign bit of rS // fill rA with the sign bit of rS
uint32_t ppc_result_a = int32_t(ppc_result_d) >> 31; ppc_result_a = int32_t(ppc_result_d) >> 31;
if (ppc_result_a) // if rA is negative if (ppc_result_a) // if rA is negative
ppc_state.spr[SPR::XER] |= XER::CA; ppc_state.spr[SPR::XER] |= XER::CA;
} else { } else {