Posted 2022-07-28Updated 2023-10-24汇编24 minutes read (About 3531 words)x86汇编学习笔记cbw：把AL扩充成AX，扩充时要考虑负数 cwd：把AX扩充成DX:AX，扩充时要考虑负数 cdq：把EAX扩充成EDX:EAX，扩充时要考虑负数 一般用于放大被除数，为之后的除法做准备 movsx：符号扩充 movzx：零扩充 12movsx ax, al ;将al符号扩充成axmovzx ax, al ;将al零扩充成ax Read more
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