FSUB
st(0), st(i)
x86_64 X86_LEGACY X87_ALU FPU source: asmjit
X86_FSUB_X86_LEGACY_ONEBYTE_D8_332752
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | D8 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | False |
| raw_encoding | D8 E0+i |
Operands (2)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | OP0 | REG | RW | EXPLICIT | |||
| 1 | OP1 | REG | R | EXPLICIT |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.