8 已知(SI)=0004H,(DS)=8000H,(80004H)=02H,(80005H)=C3H。指令LEA AX,[SI]执行后(AX)=( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
阅读下列程序,指出运行结果
MOV SI,2500H
MOV AX,1000H
MOV DS,AX
MOV CL,05H
NEXT:MOV[ SI] ,AL
INC AL
INC SI
DEC CL
JNZ NEX
TINT 3
程序运行后结果为:DS=()H SI=()HAX=()H CL=()H
设初值AX=6264H,CX=0004H,在执行下列程序段后AX=()
AND AX, AX
JZ DONE
SHL CX, 1
ROR AX, CL
DONE: OR AX, 1234H
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