Cours du 3 au 21 novembre

ce qui fait 3 semaines en philo et une semaine en info

1 files changed, 59 insertions, 0 deletions

diff --git a/semestre 3/architecture des ordinateurs/tme/tme7/exo2-q2.asm b/semestre 3/architecture des ordinateurs/tme/tme7/exo2-q2.asm
new file mode 100644
index 0000000..92a960e
--- /dev/null
+++ b/semestre 3/architecture des ordinateurs/tme/tme7/exo2-q2.asm
@@ -0,0 +1,59 @@
+.data
+# on n'utilise pas cette chaîne, mais elle fait partie du code
+ch:	.asciiz "1 exemple d'exemple\n" # @ 0x1001 0000
+.text
+# main
+	addiu $29, $29, -24
+	# int i = 0
+	sw $0, 20($29)
+	# ch = 4($29)
+	addiu $16, $29, 4
+	ori $2, $0, 8
+	or $4, $0, $16
+	ori $5, $0, 16
+	syscall
+	# printf("%s", ch)
+	or $4, $0, $16
+	ori $2, $0, 4
+	syscall
+
+	or $17, $0, $16
+while:
+	# while ch[i] != 0
+	lb $9, 0($17)
+	beq $9, $0, end_while
+	# ch[i] = min_to_maj_char(ch[i])
+	sw $9, 0($29)
+	or $4, $0, $9
+	jal min_to_maj_char
+	sb $2, 0($17)
+	# i++
+	addiu $17, $17, 1
+	j while
+end_while:
+	# printf("%s", ch)
+	or $4, $0, $16
+	ori $2, $0, 4
+	syscall
+
+	addiu $29, $29, 24
+	ori $2, $0, 10
+	syscall
+	
+min_to_maj_char:
+	addiu $29, $29, -8
+	sw $31, 4($29)
+	# if ch[i] >= 'a'
+	sltiu $10, $4, 'a'
+	bne $10, $0, end_if
+	# if ch[i] <= 'z'
+	ori $10, $0, 'z'
+	sltu $10, $10, $4
+	bne $10, $0, end_if
+	# c - 0x20
+	addiu $4, $4, -0x20
+end_if:
+	lw $31, 4($29)
+	or $2, $0, $4
+	addiu $29, $29, 8
+	jr $31