data segment 例:64位数据移位 var db21h,43h,65h,87h,78h,56h,12h,34h data ends code segment assume cs: code. ds: data start: mov ax. data 图示 mov ds,aⅩ mov al, var[6] mov var[7, al mov al, var[5] mov var [6], a mov al, var [4] mov var[5l, al mov al, var[3] mov vardata segment 例:64位数据移位 var db 21h,43h,65h,87h,78h,56h,12h,34h data ends code segment assume cs:code,ds:data start:mov ax,data mov ds,ax mov al, var[6] mov var[7],al mov al, var[5] mov var[6],al mov al, var[4] mov var[5],al mov al, var[3] mov var[4],al 图示