feat: count numbers of occurences in asm

1 files changed, 33 insertions, 0 deletions

diff --git a/I_anno/Architettura_Elaboratori/counter_numbers.asm b/I_anno/Architettura_Elaboratori/counter_numbers.asm
new file mode 100644
index 0000000..e48f1e3
--- /dev/null
+++ b/I_anno/Architettura_Elaboratori/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