STC micro STC8A8K64D4 Series - Page 294

STC8A8K64D4 Series Manual
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ORG 0143H ;P3 interrupt entry address
P3INT_ISR:
PUSH ACC
PUSH B
PUSH DPL
PUSH DPH
PUSH P_SW2
MOV DPTR,#P3INTF
MOVX A,@DPTR
MOV B,A
CLR A
MOVX @DPTR,A
MOV A,B
CHECKP30:
JNB ACC.0,CHECKP31
NOP ;P3.0 interrupt
CHECKP31:
JNB ACC.1,CHECKP32
NOP ;P3.1 interrupt
CHECKP32:
JNB ACC.2,CHECKP33
NOP ;P3.2 interrupt
CHECKP33
JNB ACC.3,CHECKP34
NOP ;P3.3 interrupt
CHECKP34:
JNB ACC.4,CHECKP35
NOP ;P3.4 interrupt
CHECKP35:
JNB ACC.5,CHECKP36
NOP ;P3.5 interrupt
CHECKP36:
JNB ACC.6,CHECKP37
NOP ;P3.6 interrupt
CHECKP37:
JNB ACC.7,P3ISREXIT
NOP ;P3.7 interrupt
P3ISREXIT:
POP P_SW2
POP DPH
POP DPL
POP B
POP ACC
RETI
ORG 0200H
MAIN:
MOV SP, #5FH
MOV P0M0,#00H
MOV P0M1,#00H
MOV P1M0,#00H
MOV P1M1,#00H
MOV P2M0,#00H
MOV P2M1,#00H
MOV P3M0,#00H
MOV P3M1,#00H
ORL P_SW2,#80H
CLR A
MOV DPTR,# P3IM0 ; high level interrupt
MOVX @DPTR,A
MOV DPTR,# P3IM1
MOVX @DPTR,A