VFMADDSD
FMA4 FMA4 x86_64
VFMADDSD is an instruction of the x86_64 architecture (x86 / x86-64 (covers 16/32/64-bit modes)), category FMA4. This page lists its 3 encoding forms, distinguished by opcode byte: 6B.
Each form below links to its full decode: the operand roles and where each one is encoded in the instruction, the flag and register effects, and any micro-op sequence authored for it.
X86_VFMADDSD_X86_LEGACY_ONEBYTE_6B_492479
xmm[63:0], xmm[63:0], xmm[63:0], xmm[63:0]/m64
X86_VFMADDSD_X86_LEGACY_ONEBYTE_6B_840484
xmm[63:0], xmm[63:0], xmm[63:0]/m64, xmm[63:0]
XED_VFMADDSD_X86_LEGACY_ONEBYTE_6B_375499
REG0=XMM_R():w:dq:f64 REG1=XMM_N():r:q:f64 MEM0:r:q:f64 REG2=XMM_SE():r:q:f64 REG0=XMM_R():w:dq:f64 REG1=XMM_N():r:q:f64 REG2=XMM_B():r:q:f64 REG3=XMM_SE():r:q:f64 REG0=XMM_R():w:dq:f64 REG1=XMM_N():r:q:f64 REG2=XMM_SE():r:q:f64 MEM0:r:q:f64 REG0=XMM_R():w:dq:f64 REG1=XMM_N():r:q:f64 REG2=XMM_SE():r:q:f64 REG3=XMM_B():r:q:f64