?? 新建 文本文檔.txt
字號:
STACK1 SEGMENT STACK USE16
DB 64 DUP(?)
STACK1 ENDS
DATA SEGMENT USE16
MES0 DB 'This is tangdu speaking!$'
MES1 DB 'Show this sentence as hex:$'
BUF DB 65 DUP(?)
DATA ENDS
CODE SEGMENT USE16
ASSUME CS:CODE,DS:DATA
START: MOV AX,DATA
MOV DS,AX
MOV DX,OFFSET MES0 ;Show "This is tangdu speaking!"
MOV AH,09H
INT 21H
CALL KENTER
MOV DX,OFFSET MES1 ;Show Sentence as hex
MOV AH,09H
INT 21H
CALL KENTER
CALL SAHEX
MOV DX,OFFSET BUF
MOV AH,09H
INT 21H
CALL KENTER
MOV AH,4CH
INT 21H
SAHEX PROC NEAR
CBYTE =24
PUSHAD ;將所有32位寄存器壓棧
MOV DI,OFFSET MES0
MOVZX EDI,DI ;零擴展指令
MOV AX,DATA
MOV GS,AX ;使用GS段
MOV SI,OFFSET BUF
MOVZX ESI,SI
MOV ECX,CBYTE
C1: MOV AL,DS:[EDI]
AND AL,0F0H ;取高4位
SHR AL,4
CMP AL,0AH ;是否是A以上的數
JB C2
?? 快捷鍵說明
復制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -