diff options
Diffstat (limited to 'alarm/alarm.asm')
-rw-r--r-- | alarm/alarm.asm | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/alarm/alarm.asm b/alarm/alarm.asm deleted file mode 100644 index dd094ed..0000000 --- a/alarm/alarm.asm +++ /dev/null @@ -1,65 +0,0 @@ -; -;30h-39h hold the 7seg bit patterns - mov 30h, #11000000B - mov 31h, #11111001B - mov 32h, #10100100B - mov 33h, #10110000B - mov 34h, #10011001B - mov 35h, #10010010B - mov 36h, #10000010B - mov 37h, #10000111B - mov 38h, #10000000B - mov 39h, #10011000B - - mov -start: - - - -jmp start -;40h-42h hold the 3 digits to display - -display: - mov acc, 50h - mov b, #1000 - div ab - mov 40h, acc - mov acc, b - mov b, #100 - div ab - mov 41h, acc; save 100's digit - mov acc, b ;put remainder in a - mov b, #10 ;find 10's & 1's digit - div ab - mov 42h, acc ;save 10's digit - mov 43h, b ;save 1's digit - - - -;display: - mov r1, #40h ;digits[0] - -loop: ;for each digit - mov acc, #30h - mov r3, acc ;save acc;next blob: - -;safe if you don't care about the -;bits of P3 other than p3.3 & p3.4 - mov a, r1 ;picks which - cpl a ;7seg to use p3.3 & - anl a, #03h ;p3.4 are a func - rl a ;of the low2 bits of - rl a ;the addr where the - rl a ;digits live - mov p1, #0ffh;undraw previous - mov p3, a ;set new 7seg - mov a, r3 ;restore acc - -; p1 = pattern[digit[i]] - add a, @r1 - mov r0, acc - mov p1, @r0 - inc r1 -; mov p1, #0ffh - cjne r1, #44h, loop - ret |