65 lines
1.2 KiB
Plaintext
65 lines
1.2 KiB
Plaintext
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.equ PINA = 0x00 ; définition des adresses des ports
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.equ DDRA = 0x01
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.equ PORTA = 0x02
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.equ PINC = 0x06
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.equ DDRC = 0x07
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.equ PORTC = 0x08
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.equ RAMEND = 0x21FF
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.equ SPH = 0x3E ; initialisation de la pile
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.equ SPL = 0x3D
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.def numero = r20
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.def io = r21
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.def test = r19
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.org 0x000
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; Vecteur RESET
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jmp debut
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.org 0x0080
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afficheur:
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.DB 0x7E, 0x0C, 0x37, 0x9F, 0x4D, 0xDB, 0xFB, 0x0E, 0xFF, 0xDF
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; 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
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touche:
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.DB 0x41, 0x88, 0x48, 0x28, 0x84, 0x44, 0x24, 0x82, 0x42, 0x22
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; 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
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debut:
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ldi r16,0xFF ; Port A : 7 segments
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out DDRA,r16
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ldi r16,0x0F ; Port C : Clavier
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out DDRC,r16
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numero <- 0
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boucle:
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; On lit le bouton
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test <- 0
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boucleTest:
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io <- touche@ROM[test]
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out portc,io
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in io,pinc
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si io = touche@ROM[test] alors numero <- test
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inc test
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si test < 10 saut boucleTest
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; On affiche compteur sur le 7 segments
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io <- afficheur@ROM[numero]
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out porta,io
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; On continue
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saut boucle
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tempo:
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ldi r24,8
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tempoA:
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subi r22,1
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sbci r23,0
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sbci r24,0
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brcc tempoA
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ret
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