fabi/Xenia-Canary
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

No-op MSR instructions.

Browse Source
This commit is contained in:
Ben Vanik
2013-12-08 14:31:19 -08:00
parent 760d82a9af
commit 7adc122620
2 changed files with 21 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
src/alloy/frontend/ppc/ppc_emit_control.cc
View File

@@ -546,6 +546,24 @@ XEEMITTER(mtspr, 0x7C0003A6, XFX)(PPCFunctionBuilder& f, InstrData& i) {
return 0;
}
// TODO(benvanik): MSR is used for toggling interrupts, and it'd be nice to
// obey that setting. It's usually guarding atomic stores.
XEEMITTER(mfmsr, 0x7C0000A6, X )(PPCFunctionBuilder& f, InstrData& i) {
f.Nop();
return 0;
}
XEEMITTER(mtmsr, 0x7C000124, X )(PPCFunctionBuilder& f, InstrData& i) {
f.Nop();
return 0;
}
XEEMITTER(mtmsrd, 0x7C000164, X )(PPCFunctionBuilder& f, InstrData& i) {
f.Nop();
return 0;
}
void RegisterEmitCategoryControl() {
XEREGISTERINSTR(bx, 0x48000000);
@@ -571,6 +589,9 @@ void RegisterEmitCategoryControl() {
XEREGISTERINSTR(mftb, 0x7C0002E6);
XEREGISTERINSTR(mtcrf, 0x7C000120);
XEREGISTERINSTR(mtspr, 0x7C0003A6);
XEREGISTERINSTR(mfmsr, 0x7C0000A6);
XEREGISTERINSTR(mtmsr, 0x7C000124);
XEREGISTERINSTR(mtmsrd, 0x7C000164);
}