Macintosh-Tools/dingusppc
1
0
Fork 0
mirror of https://github.com/dingusdev/dingusppc.git synced 2024-12-23 21:29:28 +00:00
Code Issues Projects Releases Wiki Activity

ppcopcodes: fix cror emulation.

Browse Source
This commit is contained in:
Maxim Poliakovski 2022-01-21 14:37:51 +01:00
parent 3bdc6f915a
commit c864b9b7d9
1 changed files with 3 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
cpu/ppc/ppcopcodes.cpp
View File

@ -1285,12 +1285,14 @@ void dppc_interpreter::ppc_crnor() {
void dppc_interpreter::ppc_cror() {
ppc_grab_regsdab();
if ((ppc_state.cr & (0x80000000UL >> reg_a)) || (ppc_state.cr & (0x80000000UL >> reg_b))) {
uint8_t ir = (ppc_state.cr >> (31 - reg_a)) | (ppc_state.cr >> (31 - reg_b));
if (ir & 1) {
ppc_state.cr |= (0x80000000UL >> reg_d);
} else {
ppc_state.cr &= ~(0x80000000UL >> reg_d);
}
}
void dppc_interpreter::ppc_crorc() {
ppc_grab_regsdab();
if ((ppc_state.cr & (0x80000000UL >> reg_a)) || !(ppc_state.cr & (0x80000000UL >> reg_b))) {