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authorSanto Cariotti <santo@dcariotti.me>2021-02-06 19:56:36 +0100
committerSanto Cariotti <santo@dcariotti.me>2021-02-06 19:56:36 +0100
commitd2edbc38cac8da52f58c5cd3da6c0c625fa05736 (patch)
treea51e9a4e56fc9d4c7c9e37576dceedca3a0c72b4 /Year_1/Computer_Architecture/counter_numbers.asm
parent98f34040820dc3a964b7be59a698323e8cc6c8a3 (diff)
conf: rename
Diffstat (limited to 'Year_1/Computer_Architecture/counter_numbers.asm')
-rw-r--r--Year_1/Computer_Architecture/counter_numbers.asm33
1 files changed, 33 insertions, 0 deletions
diff --git a/Year_1/Computer_Architecture/counter_numbers.asm b/Year_1/Computer_Architecture/counter_numbers.asm
new file mode 100644
index 0000000..e48f1e3
--- /dev/null
+++ b/Year_1/Computer_Architecture/counter_numbers.asm
@@ -0,0 +1,33 @@
+array dcd 1, 24, 0, 12, 24, 2, 24, 24
+arr_n dcd 8
+elem dcd 24
+
+ mov r0, #arr_n
+ ldr r1, [r0] ; r1 = lunghezza array
+
+ mov r0, #elem
+ ldr r2, [r0] ; r2 = elemento da controllare
+
+ mov r0, #array
+ mov r4, #0 ; r4 = contatore delle occorrenze
+
+loop
+ cmp r1, #0
+ beq loop_end
+
+ ldr r3, [r0] ; r3 = valore in cui punta r0
+ cmp r3, r2
+ beq found
+
+loop_back
+ add r0, r0, #4 ; r0 punta alla nuova word
+ sub r1, r1, #1
+
+ b loop
+
+found
+ add r4, r4, #1
+ b loop_back
+
+loop_end
+ end