检测点 2.1
(1) 写出每条汇编指令执行后相关寄存器中的值。
mov ax,62627 AX=F4A3H
mov ah,31H AX=31A3H
mov al,23H AX=3123H
add ax,ax AX=6246H
mov bx,826CH BX=826CH
mov cx,ax CX=6246H
mov ax,bx AX=826CH
add ax,bx AX=04D8H
mov al,bh AX=0482H
mov ah,bl AX=6C82H
add ah,ah AX=D882H
add al,6 AX=D888H
add al,al AX=D810H
mov ax,cx AX=6246H
Microsoft(R) Windows DOS
(C)Copyright Microsoft Corp 1990-2001.
C:\DOCUME~1\ADMINI~1>debug
-a
0C1C:0100 mov ax,f4a3
0C1C:0103 mov ah,31
0C1C:0105 mov al,23
0C1C:0107 add ax,ax
0C1C:0109 mov bx,826c
0C1C:010C mov cx,ax
0C1C:010E mov ax,bx
0C1C:0110 add ax,bx
0C1C:0112 mov al,bh
0C1C:0114 mov ah,bl
0C1C:0116 add ah,ah
0C1C:0118 add al,6
0C1C:011A add al,al
0C1C:011C mov ax,cx
0C1C:011E
-r
AX=0000 BX=0000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0100 NV UP EI PL NZ NA PO NC
0C1C:0100 B8A3F4 MOV AX,F4A3
-t
AX=F4A3 BX=0000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0103 NV UP EI PL NZ NA PO NC
0C1C:0103 B431 MOV AH,31
-t
AX=31A3 BX=0000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0105 NV UP EI PL NZ NA PO NC
0C1C:0105 B023 MOV AL,23
-t
AX=3123 BX=0000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0107 NV UP EI PL NZ NA PO NC
0C1C:0107 01C0 ADD AX,AX
-t
AX=6246 BX=0000 CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0109 NV UP EI PL NZ NA PO NC
0C1C:0109 BB6C82 MOV BX,826C
-t
AX=6246 BX=826C CX=0000 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=010C NV UP EI PL NZ NA PO NC
0C1C:010C 89C1 MOV CX,AX
-t
AX=6246 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=010E NV UP EI PL NZ NA PO NC
0C1C:010E 89D8 MOV AX,BX
-t
AX=826C BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0110 NV UP EI PL NZ NA PO NC
0C1C:0110 01D8 ADD AX,BX
-t
AX=04D8 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0112 OV UP EI PL NZ AC PE CY
0C1C:0112 88F8 MOV AL,BH
-t
AX=0482 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0114 OV UP EI PL NZ AC PE CY
0C1C:0114 88DC MOV AH,BL
-t
AX=6C82 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0116 OV UP EI PL NZ AC PE CY
0C1C:0116 00E4 ADD AH,AH
-t
AX=D882 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=0118 OV UP EI NG NZ AC PE NC
0C1C:0118 0406 ADD AL,06
-t
AX=D888 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=011A NV UP EI NG NZ NA PE NC
0C1C:011A 00C0 ADD AL,AL
-t
AX=D810 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=011C OV UP EI PL NZ AC PO CY
0C1C:011C 89C8 MOV AX,CX
-t
AX=6246 BX=826C CX=6246 DX=0000 SP=FFEE BP=0000 SI=0000 DI=0000
DS=0C1C ES=0C1C SS=0C1C CS=0C1C IP=011E OV UP EI PL NZ AC PO CY
0C1C:011E 0B0C OR CX,[SI] DS:0000=20CD
-q
