📄 step.asm
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EXTRN CODE(OUT)
EXTRN DATA(STATE)
VAR SEGMENT DATA
STEP SEGMENT CODE
STACK SEGMENT IDATA
RSEG STACK
DS 10H
RSEG VAR
PHASE: DS 1
RSEG STEP
ORG 0000H
LJMP START
START: MOV PHASE,#0
MOV SP,#STACK-1
LOOP: MOV STATE,PHASE
LCALL OUT
INC PHASE
MOV A,PHASE
ANL A,#03H
MOV PHASE,A
SJMP LOOP
END
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