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dingusppc
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Another revert 

This affects Virtus VR - With the lmw checks, the opening sign doesn't display and the intro crashes sooner
This commit is contained in:
dingusdev 2024-01-07 17:45:05 -07:00
parent c6af1e31fe
commit a0b1d6394a
1 changed files with 11 additions and 15 deletions
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26
cpu/ppc/ppcopcodes.cpp
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@ -2035,7 +2035,8 @@ void dppc_interpreter::ppc_lwzux() {
ppc_result_a = ppc_effective_address;
ppc_store_result_regd();
ppc_store_result_rega();
} else {
}
else {
ppc_exception_handler(Except_Type::EXC_PROGRAM, Exc_Cause::ILLEGAL_OP);
}
}
@ -2058,20 +2059,15 @@ void dppc_interpreter::ppc_lmw() {
num_int_loads++;
#endif
ppc_grab_regsda();
ppc_effective_address = (int32_t)((int16_t)(ppc_cur_instruction & 0xFFFF));
if ((reg_d > reg_a) || reg_a != 0) {
ppc_effective_address += (reg_a > 0) ? ppc_result_a : 0;
// How many words to load in memory - using a do-while for this
do {
// ppc_state.gpr[reg_d] = mem_grab_dword(ppc_effective_address);
ppc_state.gpr[reg_d] = mmu_read_vmem<uint32_t>(ppc_effective_address);
ppc_effective_address += 4;
reg_d++;
} while (reg_d < 32);
}
else {
ppc_exception_handler(Except_Type::EXC_PROGRAM, Exc_Cause::ILLEGAL_OP);
}
ppc_effective_address = int32_t(int16_t(ppc_cur_instruction & 0xFFFF));
ppc_effective_address += (reg_a > 0) ? ppc_result_a : 0;
// How many words to load in memory - using a do-while for this
do {
//ppc_state.gpr[reg_d] = mem_grab_dword(ppc_effective_address);
ppc_state.gpr[reg_d] = mmu_read_vmem<uint32_t>(ppc_effective_address);
ppc_effective_address += 4;
reg_d++;
} while (reg_d < 32);
}
void dppc_interpreter::ppc_lswi() {