changeset 897523ead7ce in /z/repo/m5
details: http://repo.m5sim.org/m5?cmd=changeset;node=897523ead7ce
description:
X86: Implement the media sqrt instructions.
diffstat:
2 files changed, 61 insertions(+), 10 deletions(-)
src/arch/x86/isa/decoder/two_byte_opcodes.isa | 8 -
src/arch/x86/isa/insts/simd128/floating_point/arithmetic/square_root.py | 63
+++++++++-
diffs (122 lines):
diff -r fa0ea492a075 -r 897523ead7ce
src/arch/x86/isa/decoder/two_byte_opcodes.isa
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa Mon Aug 17 18:34:16
2009 -0700
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa Mon Aug 17 18:34:19
2009 -0700
@@ -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();
diff -r fa0ea492a075 -r 897523ead7ce
src/arch/x86/isa/insts/simd128/floating_point/arithmetic/square_root.py
--- a/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/square_root.py
Mon Aug 17 18:34:16 2009 -0700
+++ b/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/square_root.py
Mon Aug 17 18:34:19 2009 -0700
@@ -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
};
'''
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