Sweetbread/x86-cheatsheet
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X86/Общего назначения/Передачи данных/CBW,CWDE,CDQE.md
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| Opcode | Instruction | Op/En | 64-bit Mode | Compat/Leg Mode | Description |
| ---------- | ----------- | ----- | ----------- | --------------- | -------------------------- |
| 98 | CBW | ZO | Valid | Valid | AX := sign-extend of AL. |
| 98 | CWDE | ZO | Valid | Valid | EAX := sign-extend of AX. |
| REX.W + 98 | CDQE | ZO | Valid | N.E. | RAX := sign-extend of EAX. |