CWD
REG0=XED_REG_DX:w:SUPP REG1=XED_REG_AX:r:SUPP REG0=XED_REG_DX:w:SUPP REG1=XED_REG_AX:r:SUPP REG0=XED_REG_DX:w:SUPP REG1=XED_REG_AX:r:SUPP
x86_64 X86_LEGACY CONVERT I86 source: xed
XED_CWD_X86_LEGACY_ONEBYTE_99_608563
Encoding
| encoding_kind | X86_LEGACY |
| opcode_bytes | 99 99 99 |
| opcode_map | ONEBYTE |
| mandatory_prefix | - |
| has_modrm | False |
| requires_mode | long |
| cpl | 3 |
| raw_encoding | 0x99 mode16 no66_prefix 0x99 mode32 66_prefix 0x99 mode64 norexw_prefix 66_prefix |
Operands (6)
| # | Role | Kind | Class / Reg | Width | Access | Visibility | Encoded in |
|---|---|---|---|---|---|---|---|
| 0 | REG0 | REG | (=DX) | w | W | SUPPRESSED | MODRM_REG |
| 1 | REG1 | REG | (=AX) | R | SUPPRESSED | MODRM_REG | |
| 2 | REG2 | REG | (=DX) | w | W | SUPPRESSED | MODRM_REG |
| 3 | REG3 | REG | (=AX) | R | SUPPRESSED | MODRM_REG | |
| 4 | REG4 | REG | (=DX) | w | W | SUPPRESSED | MODRM_REG |
| 5 | REG5 | REG | (=AX) | R | SUPPRESSED | MODRM_REG |
Micro-ops sequence (0)
No micro-ops authored for this encoding. Emulator semantics not yet defined — decoder still works.