FNOP
(no syntax)
x86_64 X86_LEGACY X87_ALU X87 source: xed
XED_FNOP_X86_LEGACY_ONEBYTE_D9_201807
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | D9 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /2 | /2 |
| attributes | NOP X87_CONTROL NOTSX |
| cpl | 3 |
| raw_encoding | 0xD9 MOD[0b11] MOD=3 REG[0b010] RM[0b000] |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.