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X86: Fix the decoding for and fill out FST and FSTP.

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This commit is contained in:
Gabe Black 2009-08-20 00:42:14 -07:00
parent 843d064668
commit e8c0ca5cd1
2 changed files with 10 additions and 2 deletions
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4
src/arch/x86/isa/decoder/x87.isa
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@ -249,8 +249,8 @@ format WarnUnimpl {
0x3: Inst::UD2();
default: fisttp();
}
0x2: Inst::FST(Mq);
0x3: Inst::FSTP(Mq);
0x2: Inst::FST(Eq);
0x3: Inst::FSTP(Eq);
0x4: decode MODRM_MOD {
0x3: fucom();
default: frstor();

8
src/arch/x86/isa/insts/x87/data_transfer_and_conversion/load_or_store_floating_point.py
View file

@ -65,6 +65,10 @@ def macroop FLD_P {
movfp st(-1), ufp1, spm=-1
};
def macroop FST_R {
movfp sti, st(0)
};
def macroop FST_M {
stfp st(0), seg, sib, disp
};
@ -74,6 +78,10 @@ def macroop FST_P {
stfp st(0), seg, riprel, disp
};
def macroop FSTP_R {
movfp sti, st(0), spm=1
};
def macroop FSTP_M {
movfp ufp1, st(0), spm=1
stfp ufp1, seg, sib, disp