STR
SYSTEM I286PROTECTED x86_64
STR is an instruction of the x86_64 architecture (x86 / x86-64 (covers 16/32/64-bit modes)), category SYSTEM. This page lists its 4 encoding forms, distinguished by opcode bytes: 00, 0F.
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.