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s6-up-tp/TP3/TP33.asm
2017-06-09 12:09:23 +02:00

263 lines
4.1 KiB
NASM

.equ PINA = 0x00 ; définition des adresses des ports
.equ DDRA = 0x01
.equ PORTA = 0x02
.equ PINB = 0x03
.equ DDRB = 0x04
.equ PORTB = 0x05
.equ RAMEND = 0x21FF
.equ SPH = 0x3E ; initialisation de la pile
.equ SPL = 0x3D
.equ SREG = 0x3F
.equ ADMUX = 0x7C
.equ ADCSRB = 0x7B
.equ ADCSRA = 0x7A
.equ ADCH = 0x79
.equ ADCL = 0x78
.def temp = r20
.def consigne = r21
.org 0x000
; Vecteur RESET
jmp debut
.org 0x0080
codeAff:
.db 0b1111110, 0b001100
.db 0b0110111, 0b0011111
.db 0b1001101, 0b1011011
.db 0b1111011, 0b0001110
.db 0b1111111, 0b1011111
debut:
ldi r28, low(RAMEND)
ldi r29, high(RAMEND)
out SPL, r28
out SPH, r29
; DDRA@IO <- 0b01111111
LDI R16,0b01111111
OUT DDRA,R16
; DDRB@IO <- 0xFF
LDI R16,0xFF
OUT DDRB,R16
; ADCSRB <- 0b01000010
LDI R16,0b01000010
STS ADCSRB,R16
boucle:
; Déclenchement de le lecture de la consigne
; ADMUX <- 0b01100000
LDI R16,0b01100000
STS ADMUX,R16
; ADCSRA <- 0b11100111
LDI R16,0b11100111
STS ADCSRA,R16
attente1:
; si (ADCSRA & 0b00010000) = 0 saut attente1
LDS R16,ADCSRA
ANDI R16,0b00010000
PUSH R16
LDI R16,0
POP R17
CP R17,R16
BREQ eti0
CLR R16
RJMP eti1
eti0:
LDI R16,0x01
eti1:
TST R16
BREQ eti2
JMP attente1
eti2:
; Lecture de la consigne
; consigne <- ADCH / 8 + 20
LDS R16,ADCH
LDI R17,8
SER R18
eti3:
INC R18
SUB R16,R17
BRCC eti3
MOV R16,R18
LDI R17,20
ADD R16,R17
STS consigne,R16
; Mode hors-gel
; si (PINA@IO & 0b10000000) == 0 alors consigne <- 12
IN R16,PINA
ANDI R16,0b10000000
PUSH R16
LDI R16,0
POP R17
CP R17,R16
BREQ eti4
CLR R16
RJMP eti5
eti4:
LDI R16,0x01
eti5:
TST R16
BREQ eti6
LDI R16,12
STS consigne,R16
eti6:
; Déclenchement de le lecture de la température
; ADMUX <- 0b01100001
LDI R16,0b01100001
STS ADMUX,R16
; ADCSRA <- 0b11100111
LDI R16,0b11100111
STS ADCSRA,R16
attente2:
; si (ADCSRA & 0b00010000) = 0 saut attente2
LDS R16,ADCSRA
ANDI R16,0b00010000
PUSH R16
LDI R16,0
POP R17
CP R17,R16
BREQ eti7
CLR R16
RJMP eti8
eti7:
LDI R16,0x01
eti8:
TST R16
BREQ eti9
JMP attente2
eti9:
; temp <- ADCH / 4
LDS R16,ADCH
LDI R17,4
SER R18
eti10:
INC R18
SUB R16,R17
BRCC eti10
MOV R16,R18
STS temp,R16
; Affichage
; PORTA@IO <- codeAff@ROM[temp/20]
LDS R16,temp
LDI R17,20
SER R18
eti11:
INC R18
SUB R16,R17
BRCC eti11
MOV R16,R18
LDI R30,low(codeAff<<1)
LDI R31,high(codeAff<<1)
CLR R17
ADD R30,R16
ADC R31,R17
LPM R16,Z
OUT PORTA,R16
; PORTB@IO <- codeAff@ROM[temp-(temp/20)*20]
LDS R16,temp
PUSH R16
LDS R16,temp
LDI R17,20
SER R18
eti12:
INC R18
SUB R16,R17
BRCC eti12
MOV R16,R18
LDI R17,20
MUL R16,R17
MOV R16,R0
MOV R17,R16
POP R16
SUB R16,R17
LDI R30,low(codeAff<<1)
LDI R31,high(codeAff<<1)
CLR R17
ADD R30,R16
ADC R31,R17
LPM R16,Z
OUT PORTB,R16
; Gestion du radiateur
; si consigne - 1 > temp alors PORTB@IO <- PORTB@IO | 0b10000000
LDS R16,consigne
LDI R17,1
SUB R16,R17
PUSH R16
LDS R16,temp
POP R17
CP R17,R16
BREQ eti13
BRLO eti13
LDI R16,0x01
RJMP eti14
eti13:
CLR R16
eti14:
TST R16
BREQ eti15
IN R16,PORTB
ORI R16,0b10000000
OUT PORTB,R16
eti15:
; si consigne + 1 < temp alors PORTB@IO <- PORTB@IO & 0b01111111
LDS R16,consigne
LDI R17,1
ADD R16,R17
PUSH R16
LDS R16,temp
POP R17
CP R17,R16
BRLO eti16
CLR R16
RJMP eti17
eti16:
LDI R16,0x01
eti17:
TST R16
BREQ eti18
IN R16,PORTB
ANDI R16,0b01111111
OUT PORTB,R16
eti18:
jmp boucle