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X86: Implement the media sqrt instructions.

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This commit is contained in:
Gabe Black 2009-08-17 18:34:19 -07:00
parent 6a923c1c79
commit 449db8a370
2 changed files with 61 additions and 10 deletions
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8
src/arch/x86/isa/decoder/two_byte_opcodes.isa
View file

@ -465,7 +465,7 @@
// no prefix
0x0: decode OPCODE_OP_BOTTOM3 {
0x0: movmskps_Gd_VRo();
0x1: sqrtps_Vo_Wo();
0x1: Inst::SQRTPS(Vo,Wo);
0x2: rqsrtps_Vo_Wo();
0x3: rcpps_Vo_Wo();
0x4: Inst::ANDPS(Vo,Wo);
@ -475,7 +475,7 @@
}
// repe (0xF3)
0x4: decode OPCODE_OP_BOTTOM3 {
0x1: sqrtss_Vd_Wd();
0x1: Inst::SQRTSS(Vd,Wd);
0x2: rsqrtss_Vd_Wd();
0x3: rcpss_Vd_Wd();
default: Inst::UD2();
@ -483,7 +483,7 @@
// operand size (0x66)
0x1: decode OPCODE_OP_BOTTOM3 {
0x0: movmskpd_Gd_VRo();
0x1: sqrtpd_Vo_Wo();
0x1: Inst::SQRTPD(Vo,Wo);
0x4: Inst::ANDPD(Vo,Wo);
0x5: Inst::ANDNPD(Vo,Wo);
0x6: Inst::ORPD(Vo,Wo);
@ -495,7 +495,7 @@
format Inst {
// repne (0xF2)
0x8: decode OPCODE_OP_BOTTOM3 {
0x1: SQRTSD(Vq,Wq);
0x1: Inst::SQRTSD(Vq,Wq);
default: UD2();
}
default: UD2();

63
src/arch/x86/isa/insts/simd128/floating_point/arithmetic/square_root.py
View file

@ -54,22 +54,73 @@
# Authors: Gabe Black
microcode = '''
# SQRTPS
# SQRTPD
# SQRTSS
def macroop SQRTSS_XMM_XMM {
msqrt xmml, xmmlm, size=4, ext=1
};
def macroop SQRTSS_XMM_M {
ldfp ufp1, seg, sib, disp, dataSize=8
msqrt xmml, ufp1, size=4, ext=1
};
def macroop SQRTSS_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, disp, dataSize=8
msqrt xmml, ufp1, size=4, ext=1
};
def macroop SQRTPS_XMM_XMM {
msqrt xmml, xmmlm, size=4, ext=0
msqrt xmmh, xmmhm, size=4, ext=0
};
def macroop SQRTPS_XMM_M {
ldfp ufp1, seg, sib, "DISPLACEMENT", dataSize=8
ldfp ufp2, seg, sib, "DISPLACEMENT + 8", dataSize=8
msqrt xmml, ufp1, size=4, ext=0
msqrt xmmh, ufp2, size=4, ext=0
};
def macroop SQRTPS_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, "DISPLACEMENT", dataSize=8
ldfp ufp2, seg, riprel, "DISPLACEMENT + 8", dataSize=8
msqrt xmml, ufp1, size=4, ext=0
msqrt xmmh, ufp2, size=4, ext=0
};
def macroop SQRTSD_XMM_XMM {
sqrtfp xmml, xmml, xmmlm
msqrt xmml, xmmlm, size=8, ext=1
};
def macroop SQRTSD_XMM_M {
ldfp ufp1, seg, sib, disp, dataSize=8
sqrtfp xmml, xmml, ufp1
msqrt xmml, ufp1, size=8, ext=1
};
def macroop SQRTSD_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, disp, dataSize=8
sqrtfp xmml, xmml, ufp1
msqrt xmml, ufp1, size=8, ext=1
};
def macroop SQRTPD_XMM_XMM {
msqrt xmml, xmmlm, size=8, ext=0
msqrt xmmh, xmmhm, size=8, ext=0
};
def macroop SQRTPD_XMM_M {
ldfp ufp1, seg, sib, "DISPLACEMENT", dataSize=8
ldfp ufp2, seg, sib, "DISPLACEMENT + 8", dataSize=8
msqrt xmml, ufp1, size=8, ext=0
msqrt xmmh, ufp2, size=8, ext=0
};
def macroop SQRTPD_XMM_P {
rdip t7
ldfp ufp1, seg, riprel, "DISPLACEMENT", dataSize=8
ldfp ufp2, seg, riprel, "DISPLACEMENT + 8", dataSize=8
msqrt xmml, ufp1, size=8, ext=0
msqrt xmmh, ufp2, size=8, ext=0
};
'''