汇编语言课后习题答案---郑晓薇(整理后的)
习题一
1 无符号数: 11010011=211=D3H,01110111=119=77H,10000011=131=83H,
00101111=47=2FH,10101010=170=AAH
带符号数:11010011= -45=D3H,01110111=+119=77H,10000011= -125=83H,
00101111=+47=2FH,10101010= -86=AAH
2
5E8AH,0BE6H,3DEH,4940H
3
00011101+00110101=01010010=52H=82
01001001+11101000=00110001=31H=49
10111110+01010010=00010000=10H=16
10011010+11110001=10001011=8BH= -117
4
00101001+01010011=01111100+00000110=10000010=82H=82
01110011-00100100=01001111-00000110=01001001=49H=49
01100110+00011000=01111110+00000110=10000100=84H=84
0000000100110010+01110101=0000000110100111+00000110
=0000001000000111=0207H=207
5 000020A3H,FF94H,00003456H,007FH,FFFFEC00H
6 无符号数:0~65535,0000H~FFFFH;带符号数:-32768~+32767,8000H~7FFFH
7
(1) 38H等于十进制数56,是十进制数56的补码,数字8的ASCII码,十进制数38的压缩BCD码
(2) FFH等于十进制数-1,是带符号数-1的补码,无符号数为255
(3) 5AH等于十进制数90,是十进制数90的补码,大写字母Z的ASCII码
(4) 0DH等于十进制数13,是十进制数13的补码,回车符的ASCII码