汇编语言电子时钟、做课程设计是很理想的资源哦
tab db 0c0h,0f9h,0a4h,0b0h,099h,092h,082h,0f8h,080h,090h,088h,083h,0c6h,0a1h,086h,08eh
porta1 equ 200h
portb1 equ 204h
portc1 equ 208h
portp1 equ 20ch
porta2 equ 201h
portb2 equ 205h
portc2 equ 209h
portp2 equ 20dh
porta3 equ 202h
portb3 equ 206h
portc3 equ 20ah
portp3 equ 20eh
porta4 equ 203h
portb4 equ 207h
portc4 equ 20bh
portp4 equ 20fh
hour dw 23
1