Macintosh-Tools/dingusppc
1
0
Fork 0
mirror of https://github.com/dingusdev/dingusppc.git synced 2024-06-02 05:41:39 +00:00
Code Issues Projects Releases Wiki Activity

ppcopcodes: fix dcbz.

Browse Source
This commit is contained in:
Maxim Poliakovski 2021-01-07 04:25:27 +01:00
parent dbbaf13a78
commit 2f3938c23f
1 changed files with 7 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
cpu/ppc/ppcopcodes.cpp
View File

@ -1355,16 +1355,13 @@ void dppc_interpreter::ppc_dcbtst() {
void dppc_interpreter::ppc_dcbz() {
ppc_grab_regsdab();
ppc_effective_address = (reg_a == 0) ? ppc_result_b : (ppc_result_a + ppc_result_b);
if (!(ppc_state.pc & 32) && (ppc_state.pc < 0xFFFFFFE0UL)) {
ppc_grab_regsdab();
ppc_effective_address = (reg_a == 0) ? ppc_result_b : (ppc_result_a + ppc_result_b);
mem_write_qword(ppc_effective_address, 0);
mem_write_qword((ppc_effective_address + 8), 0);
mem_write_qword((ppc_effective_address + 16), 0);
mem_write_qword((ppc_effective_address + 24), 0);
} else {
ppc_exception_handler(Except_Type::EXC_ALIGNMENT, 0x00000);
}
ppc_effective_address &= 0xFFFFFFE0; // align EA on a 32-byte boundary
mem_write_qword(ppc_effective_address, 0);
mem_write_qword((ppc_effective_address + 8), 0);
mem_write_qword((ppc_effective_address + 16), 0);
mem_write_qword((ppc_effective_address + 24), 0);
}