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-rw-r--r--src/arch/x86/isa/decoder/two_byte_opcodes.isa2
-rw-r--r--src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py22
2 files changed, 22 insertions, 2 deletions
diff --git a/src/arch/x86/isa/decoder/two_byte_opcodes.isa b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
index 27aabaccc..5512f417c 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -707,7 +707,7 @@
}
// operand size (0x66)
0x1: decode OPCODE_OP_BOTTOM3 {
- 0x4: WarnUnimpl::haddpd_Vo_Wo();
+ 0x4: HADDPD(Vo,Wo);
0x5: WarnUnimpl::hsubpd_Vo_Wo();
0x6: WarnUnimpl::movd_Ed_Vd();
0x7: MOVDQA(Wo,Vo);
diff --git a/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py b/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py
index 8b307d3da..adf7650b9 100644
--- a/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py
+++ b/src/arch/x86/isa/insts/simd128/floating_point/arithmetic/horizontal_addition.py
@@ -55,5 +55,25 @@
microcode = '''
# HADDPS
-# HADDPD
+
+def macroop HADDPD_XMM_XMM {
+ maddf ufp1, xmmh , xmml, size=8, ext=1
+ maddf xmmh, xmmlm, xmmhm, size=8, ext=1
+ movfp xmml, ufp1
+};
+
+def macroop HADDPD_XMM_M {
+ ldfp ufp1, seg, sib, disp, dataSize=8
+ ldfp ufp2, seg, sib, "DISPLACEMENT+8", dataSize=8
+ maddf xmml, xmmh, xmml, size=8, ext=1
+ maddf xmmh, ufp1, ufp2, size=8, ext=1
+};
+
+def macroop HADDPD_XMM_P {
+ rdip t7
+ ldfp ufp1, seg, riprel, disp, dataSize=8
+ ldfp ufp2, seg, riprel, "DISPLACEMENT+8", dataSize=8
+ maddf xmml, xmmh, xmml, size=8, ext=1
+ maddf xmmh, ufp1, ufp2, size=8, ext=1
+};
'''