Реферат: Блок управления двигателем на МК

nop

nop

djnz r2,st_1

djnz r1,st_2

ret

tabcod: db 0c0h,0f9h,0a4h,0b0h,99h,92h,82h,0f8h,80h,90h

db 0feh,0fdh,0fbh,0f7h,0efh,0dfh,0ffh

db 0c6h,0f8h,0c0h,0c8h,88h,8ch,86h,80h,89h,0ceh,91h,0b0h,82h

; клавиатура

klav: push acc

push p4

push psw

setb psw.3

mov r4,#00h

mov r7,#04h

mov r6,#0feh

loop: mov a,r6

mov p4,a

rl a

mov r6,a

mov a,p4

mov r5,#04h

swap a

rotate: rrc a

jnc dbnc

inc r4

djnz r5,rotate

djnz r7,loop

ljmp quit