VPCMPISTRI
STTNI AVX x86_64
VPCMPISTRI is an instruction of the x86_64 architecture (x86 / x86-64 (covers 16/32/64-bit modes)), category STTNI. This page lists its 2 encoding forms, distinguished by opcode byte: 63.
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_VPCMPISTRI_X86_LEGACY_ONEBYTE_63_443601
xmm, xmm/m128, imm8,
XED_VPCMPISTRI_X86_LEGACY_ONEBYTE_63_870862
REG0=XMM_R():r:dq MEM0:r:dq IMM0:r:b REG1=XED_REG_ECX:w:SUPP REG0=XMM_R():r:dq REG1=XMM_B():r:dq IMM0:r:b REG2=XED_REG_ECX:w:SUPP REG0=XMM_R():r:dq MEM0:r:dq IMM0:r:b REG1=XED_REG_ECX:w:SUPP REG0=XMM_R():r:dq REG1=XMM_B():r:dq IMM0:r:b REG2=XED_REG_ECX:w:SUPP