系統(tǒng)執(zhí)行軟件源程序代碼-展示頁(yè)
2025-07-16 15:40本頁(yè)面
【正文】 CLR C BCD1: SUBB A,64H JC BCD2 INC R1 SJMP BCD1 BCD2: ADD A,64H BCD3: SUBB A,0AH JC BCD4 INC R2 SJMP BCD3 BCD4: ADD A,0AH MOV 31H,R1 MOV 32H,R2 MOV 33H,A RET四位數(shù)碼子程序 DISPLAY: MOV R3,4 MOV R0,30H MOV 3AH,0f7H DISP0: MOV A,R0 MOV DPTR,TAB MOVC A,A+DPTR MOV DPTR,0D00H MOVX DPTR,A MOV DPTR,0E00H MOV A,3AH MOVX DPTR,A RR A MOV 3AH,A ACALL DY1ms INC R0 DJNZ R3,DISP0 RET DY1ms: MOV R4,50 LOOP: NOP NOP DJNZ R4,LOOP RET10ms延時(shí)子程序 DY10ms: MOV R4,10 LOOP0: MOV R5,250 LOOP1: NOP NOP DJNZ R5,LOOP DJNZ R4,LOOP0 RET十進(jìn)制碼表 TAB: DB 3fh,06h,5bh,4fh,66h 。0,1,2,3 DB 6dh,7dh,07h,7fh,6fh 。8,9,C,,黑屏 END二、系統(tǒng)多機(jī)通信主機(jī)源程序代碼 ** *Lu Bo* **ORG 0000H SJMP MAIN主程序 MAIN: MOV SP,70H MOV SCON,98H MOV TMOD,20H MOV TL1,0FDH MOV TH1,0FDH MOV PCON,00H MOV R6,10 MOV R7,3 MOV 55H,00H SETB TR1 LCALL BCDZH LCALL DISPLAY MAIN00: LCALL PCJCX LCALL SJCS MOV SCON,50H lcall serial_send MOV SCON,98H LCALL PCJCX LCALL SJCS11 LCALL PCJCX SJMP MAIN00通信子程序 SJCS: MOV A,R6 MOV SBUF,A LCALL BCDZH LCALL DISPLAY JNB TI,$ CLR TI LCALL BCDZH LCALL DISPLAY JNB RI,$ CLR RI MOV A,SBUF XRL A,R6 JZ SJCS0 SJCS00: LCALL BCDZH LCALL DISPLAY SETB TB8 SJMP SJCS SJCS0: CLR TB8 MOV 30H,R6 MOV A,11H MOV SBUF,A LCALL BCDZH LCALL DISPLAY JNB TI,$ CLR TI JNB RI,$ CLR RI MOV A,SBUF
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鄂ICP備17016276號(hào)-1