利用單片機stc89c52設計制作電子表匯編(編輯修改稿)
2025-05-05 13:10 本頁面
【文章內容簡介】 H PUSH ACC ACALL PRT DEC R3 。顯示S0 POP ACC SWAP A ANL A,0FH MOV R4,A ACALL PRT AJMP LOOP 。轉回鍵盤掃描MOD1: MOV XIANSHI,00H。開顯示 MOV R3,3 。模式1 分秒式 ，標志R5=1 MOV A,MIAO 。顯示S3 MOV B,10 DIV AB SWAP A ADD A,B MOV 24H,A ANL 24H,0FH MOV R4,24H PUSH ACC ACALL PRT DEC R3 。顯示S2 POP ACC SWAP A ANL A,0FH MOV R4,A ACALL PRT DEC R3 。顯示S1 MOV A,FEN MOV B,10 DIV AB SWAP A ADD A,B MOV 24H,A ANL 24H,0FH MOV R4,24H PUSH ACC ACALL PRT DEC R3 。顯示S0 POP ACC SWAP A ANL A,0FH MOV R4,A ACALL PRT AJMP LOOP 。轉回鍵盤掃描MOD2: MOV XIANSHI,00H 。開顯示 MOV R0,SHI CJNE R6,01H,MOD21 。模式2,時調整，標志：R5=2 INC SHI CJNE @R0,24,MOD23 MOV SHI,00H MOD23:MOV R6,00H MOV R7,00H SJMP MOD22 MOD21:CJNE R7,01H,MOD22 CJNE @R0,00H,MOD24 MOV SHI,23 SJMP MOD25 MOD24:DEC SHI MOD25:MOV R6,00H MOV R7,00H MOD22:MOV R3,3 MOV A,FEN 。顯示S3 MOV B,10 DIV AB SWAP A ADD A,B MOV 24H,A ANL 24H,0FH MOV R4,24H PUSH ACC ACALL PRT DEC R3 。顯示S2 POP ACC SWAP A ANL A,0FH MOV R4,A ACALL PRT DEC R3 。顯示S1 MOV A,SHI MOV B,10 DIV AB SWAP A ADD A,B MOV 24H,A ANL 24H,0FH MOV R4,24H PUSH ACC MOV A,2AH 。判斷顯示與否 。關顯示，產生一閃一閃的效果 并且與兩點同步 ORL XIANSHI,A ACALL PRT DEC R3 。顯示S0 MOV XIANSHI,00H POP ACC SWAP A
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