MOVSX
REG0=GPRv_R():w REG1=GPR8_B():r REG0=GPRv_R():w REG1=GPR16_B():r
x86_64 X86_LEGACY DATAXFER I386 source: xed
XED_MOVSX_X86_LEGACY_0F_BE_668404
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | BE 0F BF |
| opcode_map | 0F |
| mandatory_prefix | - |
| has_modrm | True |
| cpl | 3 |
| raw_encoding | 0x0F 0xBE MOD[0b11] MOD=3 REG[rrr] RM[nnn] 0x0F 0xBF MOD[0b11] MOD=3 REG[rrr] RM[nnn] |
Operands (4)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | w | W | EXPLICIT | MODRM_REG | |
| 1 | REG1 | REG | R | EXPLICIT | MODRM_REG | ||
| 2 | REG2 | REG | w | W | EXPLICIT | MODRM_REG | |
| 3 | REG3 | REG | R | EXPLICIT | MODRM_REG |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.