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authorMarc Orr <marc.orr@gmail.com>2012-05-19 04:32:25 -0700
committerMarc Orr <marc.orr@gmail.com>2012-05-19 04:32:25 -0700
commit16a559c9c66b3e810860b59c4099527b38a5337e (patch)
tree959671bca23e7951e2ff05cba70bc91e73470c61
parent250c40799dd5e3bf1d7ebead8ddd894b8cb8c528 (diff)
downloadgem5-16a559c9c66b3e810860b59c4099527b38a5337e.tar.xz
x86 ISA: Implement the sse3 haddps instruction.
Shuffle the 32 bit values into position, and then add in parallel.
-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.py37
2 files changed, 37 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 378d426e3..34b79a6a4 100644
--- a/src/arch/x86/isa/decoder/two_byte_opcodes.isa
+++ b/src/arch/x86/isa/decoder/two_byte_opcodes.isa
@@ -669,7 +669,7 @@
}
// repne (0xF2)
0x8: decode OPCODE_OP_BOTTOM3 {
- 0x4: WarnUnimpl::haddps_Vo_Wo();
+ 0x4: HADDPS(Vo,Wo);
0x5: WarnUnimpl::hsubps_Vo_Wo();
default: UD2();
}
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 8e5a01fbf..53d8d9354 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
@@ -36,7 +36,42 @@
# Authors: Gabe Black
microcode = '''
-# HADDPS
+def macroop HADDPS_XMM_XMM {
+ shuffle ufp1, xmml, xmmh, ext=((0 << 0) | (2 << 2)), size=4
+ shuffle ufp2, xmml, xmmh, ext=((1 << 0) | (3 << 2)), size=4
+ shuffle ufp3, xmmlm, xmmhm, ext=((0 << 0) | (2 << 2)), size=4
+ shuffle ufp4, xmmlm, xmmhm, ext=((1 << 0) | (3 << 2)), size=4
+
+ maddf xmml, ufp1, ufp2, size=4
+ maddf xmmh, ufp3, ufp4, size=4
+};
+
+def macroop HADDPS_XMM_M {
+ ldfp ufp1, seg, sib, disp, dataSize=8
+ ldfp ufp2, seg, sib, "DISPLACEMENT+8", dataSize=8
+
+ shuffle ufp3, xmml, xmmh, ext=((0 << 0) | (2 << 2)), size=4
+ shuffle ufp4, xmml, xmmh, ext=((1 << 0) | (3 << 2)), size=4
+ shuffle ufp5, ufp1, ufp2, ext=((0 << 0) | (2 << 2)), size=4
+ shuffle ufp6, ufp1, ufp2, ext=((1 << 0) | (3 << 2)), size=4
+
+ maddf xmml, ufp3, ufp4, size=4
+ maddf xmmh, ufp5, ufp6, size=4
+};
+
+def macroop HADDPS_XMM_P {
+ rdip t7
+ ldfp ufp1, seg, riprel, disp, dataSize=8
+ ldfp ufp2, seg, riprel, "DISPLACEMENT+8", dataSize=8
+
+ shuffle ufp3, xmml, xmmh, ext=((0 << 0) | (2 << 2)), size=4
+ shuffle ufp4, xmml, xmmh, ext=((1 << 0) | (3 << 2)), size=4
+ shuffle ufp5, ufp1, ufp2, ext=((0 << 0) | (2 << 2)), size=4
+ shuffle ufp6, ufp1, ufp2, ext=((1 << 0) | (3 << 2)), size=4
+
+ maddf xmml, ufp3, ufp4, size=4
+ maddf xmmh, ufp5, ufp6, size=4
+};
def macroop HADDPD_XMM_XMM {
maddf ufp1, xmmh , xmml, size=8, ext=Scalar