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...- Used by AMD xop encoding. XOP.mmmmm=0x8 XOP9 - Used by AMD xop encoding. XOP.mmmmm=0x9 XOPA - Used by AMD xop encoding. XOP.mmmmm=0xA ThreeDNow - 3DNow opcode map. First two bytes are 0x0F 0x0F. Opcode placed at the end of the instruction after modrm. OpEncoding ---------- EncNormal(default) - Oldest encoding system using opcodes and various prefix bytes. EncVEX - VEX encoding introduced with AVX. First byte is 0xC4 or 0xC5. Various values encoded in bit fields of next two or three bytes before opcode and modrm. EncXOP - AMD XOP encoding. Similar to V...

I am attempting to create an instruction which takes a single 64-bit immediate. This doesn't seem like a thing that would exist already (because who needs an instruction which just takes an immediate?) How might I implement this easily? Perhaps I could use a format which encodes a register, which is then unused? Thanks for the help. Gus -------------- next part -------------- An HTML