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X86: Implement the instructions that convert between forms of floating point.

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This commit is contained in:
Gabe Black 2009-08-17 20:04:02 -07:00
parent 83df309a7e
commit f5ac4f51d9
2 changed files with 74 additions and 8 deletions
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8
src/arch/x86/isa/decoder/two_byte_opcodes.isa
View file

@ -500,7 +500,7 @@
0x0: decode OPCODE_OP_BOTTOM3 {
0x0: Inst::ADDPS(Vo,Wo);
0x1: Inst::MULPS(Vo,Wo);
0x2: cvtps2pd_Vo_Wq();
0x2: Inst::CVTPS2PD(Vo,Wq);
0x3: Inst::CVTDQ2PS(Vo,Wo);
0x4: Inst::SUBPS(Vo,Wo);
0x5: Inst::MINPS(Vo,Wo);
@ -511,7 +511,7 @@
0x4: decode OPCODE_OP_BOTTOM3 {
0x0: Inst::ADDSS(Vd,Wd);
0x1: Inst::MULSS(Vd,Wd);
0x2: cvtss2sd_Vq_Wd();
0x2: Inst::CVTSS2SD(Vq,Wd);
0x3: cvttps2dq_Vo_Wo();
0x4: Inst::SUBSS(Vd,Wd);
0x5: Inst::MINSS(Vd,Wd);
@ -522,7 +522,7 @@
0x1: decode OPCODE_OP_BOTTOM3 {
0x0: Inst::ADDPD(Vo,Wo);
0x1: Inst::MULPD(Vo,Wo);
0x2: cvtpd2ps_Vo_Wo();
0x2: Inst::CVTPD2PS(Vo,Wo);
0x3: cvtps2dq_Vo_Wo();
0x4: Inst::SUBPD(Vo,Wo);
0x5: Inst::MINPD(Vo,Wo);
@ -533,7 +533,7 @@
0x8: decode OPCODE_OP_BOTTOM3 {
0x0: Inst::ADDSD(Vq,Wq);
0x1: Inst::MULSD(Vq,Wq);
0x2: cvtsd2ss_Vd_Wq();
0x2: Inst::CVTSD2SS(Vd,Wq);
0x4: Inst::SUBSD(Vq,Wq);
0x5: Inst::MINSD(Vq,Wq);
0x6: Inst::DIVSD(Vq,Wq);

74
src/arch/x86/isa/insts/simd128/floating_point/data_conversion/convert_floating_point_to_floating_point.py
View file

@ -54,8 +54,74 @@
# Authors: Gabe Black
microcode = '''
# CVTPS2PD
# CVTPD2PS
# CVTSS2SD
# CVTSD2SS
def macroop CVTSS2SD_XMM_XMM {
cvtf2f xmml, xmmlm, destSize=8, srcSize=4, ext=1
};
def macroop CVTSS2SD_XMM_M {
ldfp ufp1, seg, sib, disp, dataSize=8
cvtf2f xmml, ufp1, destSize=8, srcSize=4, ext=1
};
def macroop CVTSS2SD_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, disp, dataSize=8
cvtf2f xmml, ufp1, destSize=8, srcSize=4, ext=1
};
def macroop CVTSD2SS_XMM_XMM {
cvtf2f xmml, xmmlm, destSize=4, srcSize=8, ext=1
};
def macroop CVTSD2SS_XMM_M {
ldfp ufp1, seg, sib, disp, dataSize=8
cvtf2f xmml, ufp1, destSize=4, srcSize=8, ext=1
};
def macroop CVTSD2SS_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, disp, dataSize=8
cvtf2f xmml, ufp1, destSize=4, srcSize=8, ext=1
};
def macroop CVTPS2PD_XMM_XMM {
cvtf2f xmmh, xmmlm, destSize=8, srcSize=4, ext=2
cvtf2f xmml, xmmlm, destSize=8, srcSize=4, ext=0
};
def macroop CVTPS2PD_XMM_M {
ldfp ufp1, seg, sib, disp, dataSize=8
cvtf2f xmmh, ufp1, destSize=8, srcSize=4, ext=2
cvtf2f xmml, ufp1, destSize=8, srcSize=4, ext=0
};
def macroop CVTPS2PD_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, disp, dataSize=8
cvtf2f xmmh, ufp1, destSize=8, srcSize=4, ext=2
cvtf2f xmml, ufp1, destSize=8, srcSize=4, ext=0
};
def macroop CVTPD2PS_XMM_XMM {
cvtf2f xmml, xmmlm, destSize=4, srcSize=8, ext=0
cvtf2f xmml, xmmhm, destSize=4, srcSize=8, ext=2
lfpimm xmmh, 0
};
def macroop CVTPD2PS_XMM_M {
ldfp ufp1, seg, sib, "DISPLACEMENT", dataSize=8
ldfp ufp2, seg, sib, "DISPLACEMENT + 8", dataSize=8
cvtf2f xmml, ufp1, destSize=4, srcSize=8, ext=0
cvtf2f xmml, ufp2, destSize=4, srcSize=8, ext=2
lfpimm xmmh, 0
};
def macroop CVTPD2PS_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, "DISPLACEMENT", dataSize=8
ldfp ufp2, seg, riprel, "DISPLACEMENT + 8", dataSize=8
cvtf2f xmml, ufp1, destSize=4, srcSize=8, ext=0
cvtf2f xmml, ufp2, destSize=4, srcSize=8, ext=2
lfpimm xmmh, 0
};
'''