x86: implements the simd128 ADDSUBPD instruction
This patch implements the simd128 ADDSUBPD instruction for the x86 architecture. Tested with a simple program in assembly language which executes the instruction. Checked that different versions of the instruction are executed by using the execution tracing option. Committed by: Nilay Vaish <nilay@cs.wisc.edu
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@ -903,7 +903,7 @@
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// operand size (0x66)
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// operand size (0x66)
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0x1: decode OPCODE_OP_BOTTOM3 {
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0x1: decode OPCODE_OP_BOTTOM3 {
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0x0: WarnUnimpl::addsubpd_Vo_Wo();
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0x0: ADDSUBPD(Vo,Wo);
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0x1: PSRLW(Vo,Wo);
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0x1: PSRLW(Vo,Wo);
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0x2: PSRLD(Vo,Wo);
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0x2: PSRLD(Vo,Wo);
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0x3: PSRLQ(Vo,Wo);
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0x3: PSRLQ(Vo,Wo);
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@ -37,5 +37,24 @@
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microcode = '''
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microcode = '''
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# ADDSUBPS
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# ADDSUBPS
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# ADDSUBPD
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def macroop ADDSUBPD_XMM_XMM {
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msubf xmml, xmml, xmmlm, size=8, ext=Scalar
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maddf xmmh, xmmh, xmmhm, size=8, ext=Scalar
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};
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def macroop ADDSUBPD_XMM_M {
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ldfp ufp1, seg, sib, disp, dataSize=8
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ldfp ufp2, seg, sib, "DISPLACEMENT+8", dataSize=8
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msubf xmmlm, xmml, ufp1, size=8, ext=0
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maddf xmmhm, xmmh, ufp2, size=8, ext=0
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};
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def macroop ADDSUBPD_XMM_P {
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rdip t7
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ldfp ufp1, seg, sib, disp, dataSize=8
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ldfp ufp2, seg, sib, "DISPLACEMENT+8", dataSize=8
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msubf xmmlm, xmml, ufp1, size=8, ext=0
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maddf xmmhm, xmmh, ufp2, size=8, ext=0
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};
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'''
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'''
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