51单片机汇编语言实现波形发生器

1、ORG 0000HLJMP STARTORG 0050HSTART: JNB P1.0,J100 JNB P1.1,J101 JNB P1.2,J102 JNB P1.3,J103 LJMP STARTJ100: MOV R7,#00H JNB P1.1,J101 JNB P1.2,J102 JNB P1.3,J103 LJMP SQUAREJ101: MOV R7,#01H JNB P1.0,J100 JNB P1.2,J102 JNB P1.3,J103 LJMP TRIANGLEJ102: MOV R7,#02H JNB P1.0,J100 JNB P1.1,J101 JNB P1.3,

2、J103 LJMP SAWJ103: MOV R7,#03H JNB P1.0,J100 JNB P1.1,J101 JNB P1.2,J102 LJMP SINSQUARE: CJNE R7,#00H,FANHUI MOV R0,#00HK00: MOV P0,#0FFH MOV P2,#0FFH MOV A,P2 CPL A MOV R3,AL00: DEC R3 CJNE R3,#255,L00 INC R0 INC R0 CJNE R0,#254,K00 MOV R0,#00HK01: MOV P0,#00H MOV P2,#0FFH MOV A,P2 CPL A MOV R3,AL0

3、1: DEC R3 CJNE R3,#255,L01 INC R0 INC R0 CJNE R0,#254,K01 LJMP J100FANHUI: RETTRIANGLE: CJNE R7,#01H,FANHUI2 MOV R0,#00HK20: MOV P0,R0 MOV P2,#0FFH MOV A,P2 CPL A MOV R3,AL20: DEC R3 CJNE R3,#255,L20 INC R0 INC R0 CJNE R0,#254,K20K21: MOV P0,R0 MOV P2,#0FFH MOV A,P2 CPL A MOV R3,AL21: DEC R3 CJNE R3

4、,#255,L21 DEC R0 DEC R0 CJNE R0,#0,K21 LJMP J101FANHUI2: RETSAW: CJNE R7,#02H,FANHUI3 MOV R0,#0FFH K10: MOV P0,R0 MOV P2,#0FFH MOV A,P2 CPL A MOV R3,AL10: DEC R3 CJNE R3,#255,L10 INC R0 CJNE R0,#255,K10 LJMP J102FANHUI3: RETSIN: CJNE R7,#03H,FANHUI4 MOV R0,#00HK30: MOV A,R0 MOV DPTR,#TAB MOVC A,A+DP

5、TR ;MOV DPTR,#7FFFH ;MOVX DPTR,A MOV P0,A INC R0 MOV P2,#0FFH MOV A,P2 CPL A MOV R3,AL30: DEC R3 CJNE R3,#255,L30 CJNE R0,#255,K30 LJMP J103FANHUI4: RETTAB: DB 80H,82H,84H,86H,88H,8AH,8CH,8EH,90H,92H,94H,96H,98H,9AH,9CH,9EH DB 0A0H,0A2H,0A4H,0A6H,0A8H,0AAH,0ABH,0ADH,0AFH,0B1H,0B2H,0B4H,0B6H,0B7H,0B9

6、H,0BAH DB 0BCH,0BDH,0BFH,0C0H,0C1H,0C3H,0C4H,0C5H,0C6H,0C8H,0C9H,0CAH,0CBH,0CCH,0CDH,0CEH DB 0CEH,0CFH,0D0H,0D1H,0D1H,0D2H,0D2H,0D3H,0D3H,0D4H,0D4H,0D4H,0D4H,0D5H,0D5H,0D5H DB 0D5H,0D5H,0D5H,0D5H,0D4H,0D4H,0D4H,0D4H,0D3H,0D3H,0D2H,0D2H,0D1H,0D1H,0D0H,0CFH DB 0CEH,0CEH,0CDH,0CCH,0CBH,0CAH,0C9H,0C8H,0

7、C6H,0C5H,0C4H,0C3H,0C1H,0C0H,0BFH,0BDH DB 0BCH,0BAH,0B9H,0B7H,0B6H,0B4H,0B2H,0B1H,0AFH,0ADH,0ABH,0AAH,0A8H,0A6H,0A4H,0A2H DB 0A0H,9EH,9CH,9AH,98H,96H,94H,92H,90H,8EH,8CH,8AH,88H,86H,84H,82H DB 80H,7DH,7BH,79H,77H,75H,73H,71H,6FH,6DH,6BH,69H,67H,65H,63H,61H DB 5FH,5DH,5BH,59H,57H,55H,54H,52H,50H,4EH,

8、4DH,4BH,49H,48H,46H,45H DB 43H,42H,40H,3FH,3EH,3CH,3BH,3AH,39H,37H,36H,35H,34H,33H,32H,31H DB 31H,30H,2FH,2EH,2EH,2DH,2DH,2CH,2CH,2BH,2BH,2BH,2BH,2AH,2AH,2AH DB 2AH,2AH,2AH,2AH,2BH,2BH,2BH,2BH,2CH,2CH,2DH,2DH,2EH,2EH,2FH,30H DB 31H,31H,32H,33H,34H,35H,36H,37H,39H,3AH,3BH,3CH,3EH,3FH,40H,42H DB 43H,45H,