FSAVE
mem
x86_64 X86_LEGACY FPU FPU source: asmjit
X86_FSAVE_X86_LEGACY_ONEBYTE_9B_304821
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 9B |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| modrm.reg = /6 | /6 |
| raw_encoding | 9B DD /6 |
Operands (1)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | OP0 | REG | RW | EXPLICIT |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.