© Thomas Kunz 2000
SCE 574
92
Assembler Example
äInitialize
an array example
.DATA
ArraySize EQU 4
InitialValue EQU 0
ArrayX DW ArraySize DUP(?)
.CODE
Start: MOV AX, InitialValue
MOV BX,OFFSET ArrayX
MOV CX,0
InitLoop: CMP CX, ArraySize
JE DONE
MOV [BX],AX
ADD BX,2
ADD CX,1
JMP InitLoop
DONE: ....
Could have
specified an
initial value here
CMP sets
flags but does
not change the
dest
Jump
if zero flag is set
Why 2 and
not 1?
Why 1 and
not 2?
Defines a
Constant