MOVSXD
REG0=GPRz_R():w MEM0:r:z REG0=GPR64_R():w MEM0:r:d
x86_64 X86_LEGACY DATAXFER LONGMODE source: xed
XED_MOVSXD_GPRz_MEMz MOVSXD_GPR64_MEMd
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 63 63 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | True |
| rex_w | 1 |
| requires_mode | long |
| cpl | 3 |
| raw_encoding | 0x63 MOD[mm] MOD!=3 REG[rrr] RM[nnn] mode64 MODRM() norexw_prefix 0x63 MOD[mm] MOD!=3 REG[rrr] RM[nnn] mode64 MODRM() rexw_prefix |
Operands (4)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | w | W | EXPLICIT | MODRM_REG | |
| 1 | MEM0 | MEM | z | R | EXPLICIT | MODRM_RM | |
| 2 | REG1 | REG | w | W | EXPLICIT | MODRM_REG | |
| 3 | MEM1 | MEM | d | R | EXPLICIT | MODRM_RM |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.