alarm clock assembly code

8/22/2019 Alarm Clock Assembly Code

1/26

;-----------------------------------------------------------------------------; Copyright (C) 2001 Samuel Barnes.; All rights reserved.;; Name Samuel Barnes

; !ogin "arnsa; #ome$or% & '; ate 11-2'-01; *!+ NA,+ "arnsa.AS,; A/+ ,C C01000; +SC*3*4N imer program5 $ill 6ount three things 6ount se6onds a7ter you hit ,4,0; a simple stop $at6h5 $ill 6ount ho$ long you hold do$n ,4,0 in se6onds5 and; $ill 6ount ho$ many times you press ,4,25 ,4,1 is a reset. No !As on is stop; $at6h mode5 !A0 on is hold do$n mode5 and !A1 on is 6ount "utton press mode5; i7 !A0 and !A1 are "oth on nothing $ill run.;

;; N4+S; (1) ,emory usage; Bytes; 85 15 2 9 Clo6% egisters :-< 9 Alarm egisters -' 9 otal imer=alue 0 9 (indire6t addressing);; 0h 9 Clo6% 1>20 o7 a se6 "yte; 0?h 9 Blin% elay "yte; 0Ah-0Bh 9 Set mode display "ytes; 0Ch 9 imer delay "yte

; 0h 9 Alarm delay "yte; 0+h 9 Alarm time limit "yte; 0h 9 4ld time value; 10h-11h 9 4ld display "ytes value (used so it is only updated $hen they 6hange); 12h 9 Set isplay mode; 1:h - 1h 9 Current Chrono =alues; 1'h - 1h 9 indire6t addressing "ytes; 20h-22h 9 *nstant timer value; 2:h-2h 9 4ld *nstant timer value; 2'h 9 4ld Chrono =alue; 28h 9 Chrono delay "yte; 2h 9 Bit values; @2?h 9 Saved 7or 7uture "it values; 2Ah 9 enths o7 se6ond 6hrono "it; 2Bh 9 Alarm on o77 "yte; 2Ch - 2h 9 n-sed;; Bits;


2/26

;


3/26

; =A*AB!+S;-----------------------------------------------------------------------------

;-----------------------------------------------------------------------------; +S+ and *N+3 =+C4S;-----------------------------------------------------------------------------

; eset =e6tor 6seg A 0 lDmp ,ain ; !o6ate a Dump to the start o7 6ode at

; the reset ve6tor.

org 000BhlDmp imer0E*nt



org 008:hlDmp imer:E*nt

;-----------------------------------------------------------------------------; C4+ S+/,+N;-----------------------------------------------------------------------------

CodeESeg segment C4+

rseg CodeESeg ; S$it6h to this 6ode segment. using 0 ; Spe6i7y register "an% 7or the 7ollo$ing ; program 6ode.

,ain ; isa"le the . (*s not ena"led at this point.); *7 interrupts $ere ena"led5 $e $ould need to eFpli6itly disa"le; them so that the 2nd move to CN o66urs no more than 7our 6lo6%; 6y6les a7ter the 7irst move to CN.mov CN5 &0+hmov CN5 &0Ah


4/26

;------------------------------------------------------------------------------------------;Cyrstal initialiGation

;------------------------------------------------------------------------------------------;H4SC, 110;HCN 101

mov 4SCHCN5 &'h ;11100101mov 4SC*CN5 &1h ;00011000

;------------------------------------------------------------------------------------------;3ort *>4 Cross"ar *nitialiGation

;------------------------------------------------------------------------------------------

mov HB25 &


5/26

mov 0Ch5 &01h ;timer delay "ytemov 0h5 &01h ;alarm delay "ytemov 05 &00hmov 15 &00hmov 25 &00h

mov :5 &00hmov


6/26

mov ,:!#5 &08' ; imer : eload egister #igh Bytemov ,:!!5 &001 ; imer : eload egister !o$ Byte

,4= #15&08' ;#igh "yte o7 timer 8' (ma%es 1>20 o7 a se6),4= !15&01 ;!o$ "yte o7 time1

;,4= #05&0h ;#igh "yte o7;,4= !05&01h ;!o$ "yte o7

;S+B 0 ;starts timer0;S+B 1 ;starts timer1

;------------------------------------------------------------------------------------------; #eadphone *nitialiGation;------------------------------------------------------------------------------------------

mov +0CN5 &0:hmov AC0CN5 &0


7/26

Dmp Clo6%

imer,ode!lDmp imer,ode

Setimer!

lDmp Setimer

SetAlarm;mov ,:CN5 &00


8/26

DG rap#ourADmp SetAlarm

rap#ourAmov


9/26

add A5 2 ;in6riments the hours on the alarmmov 25 A66

mov A665 &2< ;2< $raps $hen hours get to 2:su"" A5 2

DG rap#ourCDmp SetClo6%

rap#ourCmov 25 &00hDmp SetClo6%

;end set Clo6%

Setimer;mov ,:CN5 &00


10/26

mov 5 &00hDmp Setimer

Add#ourD" ,4,:5 Add#our ;$ait 7or "utton release

mov A665 &1hadd A5 ' ;in6riments the hours on the alarmmov '5 A66

mov A665 &18h ;(2: "ase 10) $raps $hen hours get to 2:su"" A5 'DG rap#ourDmp Setimer

rap#ourmov '5 &00h

Dmp Setimer

;end set timer

/oClo6%;mov ,:CN5 &000h ;stops timer :mov 10h5 &0h ;$rites h to old display "its so display $ill re7reshmov 11h5 &0h ;as soon as you go into set modelDmp Clo6%

imer,odeD" ,4,05 imer,ode ;$aits 7or "utton to "e relased!CA!! e7reshEisplay

imer,ode!oop ;so the $rong D" ,4,0 $onIt get sele6tedD" ,4,15 StartStop!D" ,4,25 esetimer!D" ,4,05 Chrono,ode!D" !A15 Clo6%!!D" !A25 Clo6%!!D" !A:5 Clo6%!!

;move timer memory 20h-22h to displayJJJJJJJ;6omapre old instant values (2:h-2h) $ith ne$ to see i7 you

update display


11/26

mov A5 2:h ;6ompares the se6onds6Dne A5 20h5 pdateimermov A5 2


12/26

mov 0h5 20h ;se6onds!CA!! e7reshEisplay

S+B +N ;moves to se6ond hal7 o7 display

C! S,4= 305&0C0h!CA!! A*E!CC! +N

mov A5 &I I!CA!! riteEeFtmov A5 &ItI!CA!! riteEeFtmov A5 &IiI!CA!! riteEeFt

mov A5 &ImI!CA!! riteEeFtmov A5 &IeI!CA!! riteEeFtmov A5 &IrI!CA!! riteEeFt

Dmp imer,ode!oop

StartStopD" ,4,15 ;$ait 7or "utton release

D"


13/26

esetimerD" ,4,25 ;$ait 7or "utton release

6lr 1 ;stops the timer

6lr


14/26

mov 2'h5 1:h ;updates old 6hrono value sin6e $e are re7reshing

mov 0h5 1h!CA!! e7reshEisplay ;$rite hours to display

mov A5 &II!CA!! riteEeFt ;6olon

mov 0h5 1


15/26

Dmp Chrono,ode

StopC6lr


16/26

!CA!! riteEeFt;se6onds

mov 0h5 8!CA!! e7reshEisplay

+FitC+

e7reshESet

mov A5 10h ;6ompare 0Ah and 10h6Dne A5 0Ah5 Continuepdatemov A5 11h ;6ompares 0Bh and 11h6Dne A5 0Bh5 Continuepdate

Dmp +FitS

Continuepdate ;uses display "ytes (this timer used 7or multiples sets)mov 10h5 0Ah ;updates old values "e6ause display is re7eshingmov 11h5 0Bh

!CA!! ClearE!C!CA!! CursorE#ome

mov 0h5 0Bh ;hours!CA!! e7reshEisplay

mov A5 &II ;6olon!CA!! riteEeFt ;$rite the a66 to display

;minutesmov 0h5 0Ah!CA!! e7reshEisplay

mov A5 &I I!CA!! riteEeFtmov A5 &ISI!CA!! riteEeFtmov A5 &IeI!CA!! riteEeFt

S+B +N ;moves to se6ond hal7 o7 displayC! S,4= 305&0C0h!CA!! A*E!CC! +N


17/26

mov A5 &ItI!CA!! riteEeFt

mov A5 12h ;12h 9 Set display mode "yte

de6 ADG isplayEClo6% ;6hoses to $rite Set Clo6%5 Set Alarm5 or Set imer;su"" A5 &01hde6 ADG isplayEimer;su"" A5 &01hde6 ADG isplayEAlarm

isplayEAlarm

mov A5 &I I!CA!! riteEeFtmov A5 &IAI!CA!! riteEeFtmov A5 &IlI!CA!! riteEeFtmov A5 &IaI!CA!! riteEeFtmov A5 &IrI!CA!! riteEeFtmov A5 &ImI!CA!! riteEeFt

Dmp +FitS

isplayEimermov A5 &I I!CA!! riteEeFtmov A5 &II!CA!! riteEeFtmov A5 &IiI!CA!! riteEeFtmov A5 &ImI!CA!! riteEeFtmov A5 &IeI!CA!! riteEeFtmov A5 &IrI!CA!! riteEeFt

Dmp +FitS


18/26

isplayEClo6%mov A5 &I I!CA!! riteEeFt

mov A5 &ICI!CA!! riteEeFtmov A5 &IlI!CA!! riteEeFtmov A5 &IoI!CA!! riteEeFtmov A5 &I6I!CA!! riteEeFtmov A5 &I%I!CA!! riteEeFt

Dmp +FitS

+FitS+

;------------------------------------------------------; *nterupts Code;------------------------------------------------------

imer0E*nt ;Alarm imer push A66push Bpush 3Spush 00h

,4= #05&0+8h ;#igh "yte o7 timer0 0+8h (per7e6t annoying alarm pit6h),4= !05&000h ;!o$ "yte o7 timer05 00h

Dn" !A05 Alarm477 ;i7 alarm !A is turned o775 turn o77 alarm

dDnG 0h5 Alarming ;pro"a"ly need to 6hange thisJJJJJJJmov 0h5 &0h

de6 0+h ;de6riments alarm time "yte and 6he6%s itmov A665 0+hDG Alarm477

;alarming stu77JJJJJJJJJJJJJJ


19/26

AlarmingdDnG 2Bh5 lash

6pl


20/26

imer1E*nt ;Count o$n imer push A66push B

push 3Spush 00h

dDnG 0Ch5 +Fit1mov 0Ch5 &20 ;ma%es it run 20 times (1 se6)

mov A665 22h ;6he6%s to see i7 timer has run outDnG S%ipmov A665 21hDnG S%ipmov A665 20h

DG imerAlarm

S%ipmov A665 20h ;only time se6onds $ould "e Gero $ithout the de6riment getting

it isDG MeroSe6onds ;the 7irst run5 so this only applies to then

dDnG 20h5 +Fit1 ;pro"lem se6onds 6an still "e GeroJJJJJJJJ(* thin% it is 7iFed)

MeroSe6ondsmov A665 21hDG Che6%#ourde6 21h ;i7 se6onds are Gero de6riment minutesmov 20h5 &? ;reset se6onds to ?Dmp +Fit1

Che6%#ourmov A665 22hDG +Fit1de6 22h ;i7 minutes are Gero also de6riment hoursmov 21h5 &? ;resets minutes to ?mov 20h5 &? ;resets se6onds to ?Dmp +Fit1

imerAlarmC! 1 ;stops timer set" 0 ;starts alarm timer mov 0+h5 &0h ;sets alarm time (time un%no$n)JJJJJJJJJJJJJJJJset"


21/26

+Fit1,4= #15&08' ;#igh "yte o7 timer 1>20th o7 a se6ond,4= !15&01 ;!o$ "yte o7 time1pop 00hpop 3S

pop Bpop A66+*

imer2E*nt ;Clo6% imer mov 2C4N5 &00


22/26

Dmp Che6%Alarm

Clear#ourmov 25 &00hDmp Che6%Alarm

Che6%AlarmDn" !A05 +Fit2 ;6he6%s alarm ena"le lat5 i7 not set5 no alarmD"


23/26

Dmp +Fit:

*n6,inCmov 1:h5 &0h ;6lears the se6ondsmov A665 &1h

add A5 1


24/26

mov A5 @0 ;puts the 10Is value 7or se6onds in the a66!CA!! riteEeFt

;mov 0h5 0Bhpop 0h ;gets 0h again 7or ones position

mov A5 0mov B5 &10div ABmov A5 B ;%eeps remainder or the oneIs positionadd A5 &1'hmov 05 A66

mov A5 @0 ;indire6t adresses the ones value (7or the display) to the a66!CA!! riteEeFt

+

*+E+H

S+B +NS+B S6lr ,4= 305 A!CA!! A*E!CC! +N

+

initEl6dS+B +NC! S6lr ,4= 305 &:h ;sets "it input5 1 line display5 and F8 dots!CA!! A*E!CC! +N ;:0 old!CA!! A*E!C

S+B +NC! S,4= 305 &0+h ;turne display on and 6ursor on!CA!! A*E!CC! +N


25/26

!CA!! A*E!C

S+B +NC! S,4= 305 &0'h ;display not shi7ted5 and in6riments

!CA!! A*E!CC! +N!CA!! A*E!C

!CA!! C!+AE!C+

C!+AE!C

S+B +NC! S6lr,4= 305&01hC! +N!CA!! A*E!C+

CS4E#4,+

S+B +NC! S6lr,4= 305&02hC! +N!CA!! A*E!C+

A*E!C

;S+B +N ;Start !C 6ommand;C! S ;*tIs a 6ommand;S+B ;*tIs a read 6ommand;,4= 305 &08h ;Set all pins to initially;,4= A5 30 ;ead the return value;C! +N ;inish the 6ommand

;N! ACC5&


26/26

;C! ;urn o77 7or 7uture 6ommands

mov 05 &00hdDnG 05 mov 05 &00h

dDnG 05 mov 05 &00hdDnG 05 mov 05 &00hdDnG 05 mov 05 &00hdDnG 05 mov 05 &00hdDnG 05 mov 05 &00hdDnG 05

mov 05 &00hdDnG 05

+

+N

alarm clock assembly code

Documents