有如下程序段:MOV31H,#24H;MOVA,31H;SWAPA;ANLA,#0F0H;执行结果是()
A:
B: =24H
C:
D: =42H
E:
F: =40H
G:
H: =00H
A:
B: =24H
C:
D: =42H
E:
F: =40H
G:
H: =00H
举一反三
- 有如下程序段:MOV31H,#24H;MOVA,31H;SWAPA;ANLA,#0F0H;执行结果是()
- 执行如下三条指令后,30H单元的内容是( ) A: 、0 B: H C: H D、F D: H E: O F: O G: O H: R1,#30H I: 40H,#0 J: @R1,40H <br/>A、40H B、30H
- 已知:(30H)=23H,(31H)=13H,(40H)=72H,(41H)=08H 执行: MOV A,30H ADD A,40H DA A MOV 30H,A MOV A,31H ADDC A,41H DA A MOV 31H,A 则结果为:(30H)=______H,(31H)=______H,(40H)=______H,(CY)=______。
- 有如下程序段:MOV 31H, #24HMOV A, 31HSWAP AANL A, #0F0H执行结果是() A: (A)=24H B: (A)=42H C: (A)=40H D: (A)=00H
- 设F、G、H是非空集合A上的关系,则下面成立的是( ). A: F○(G∪H)=F○G∪F○H B: (G∪H)○F=G○F∪H○F C: (F○G)○H=F○(G○H) D: F○(G∩H)=F○G∩F○H