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authorSanto Cariotti <dcariotti24@gmail.com>2020-10-18 18:56:43 +0200
committerSanto Cariotti <dcariotti24@gmail.com>2020-10-18 18:59:42 +0200
commit6c6328375c55683645146909b7ab760d0de0d463 (patch)
treeb18e695dfe7a10064fed111649253dc2c77208bf /1_anno/Architettura_Elaboratori/odd_even_numbers.asm
parent4e063e32250312c38d5646840719b62429362b21 (diff)
chore: name of first year folder
Diffstat (limited to '1_anno/Architettura_Elaboratori/odd_even_numbers.asm')
-rw-r--r--1_anno/Architettura_Elaboratori/odd_even_numbers.asm36
1 files changed, 36 insertions, 0 deletions
diff --git a/1_anno/Architettura_Elaboratori/odd_even_numbers.asm b/1_anno/Architettura_Elaboratori/odd_even_numbers.asm
new file mode 100644
index 0000000..996fd62
--- /dev/null
+++ b/1_anno/Architettura_Elaboratori/odd_even_numbers.asm
@@ -0,0 +1,36 @@
+arr_n dcd 8
+array dcd 1, 2, 4, 6, -5, 8, 7, 3
+s_arr dcd 0
+
+ mov r0, #arr_n
+ ldr r0, [r0]
+ mov r1, r0
+
+ mov r4, #1 ; 0 = even, 1 = odd
+ mov r6, #0 ; number of elements on new sequence
+
+ mov r2, #s_arr
+
+ mov r1, #array
+
+loop
+ cmp r0, #0
+ beq end_program
+ ldr r3, [r1], #4
+ mov r5, r3
+
+ and r5, r3, #1
+ cmp r5, r4 ; check if element stored in r3 is odd or even
+ beq data_store
+subn_loop
+ sub r0, r0, #1
+ b loop
+
+data_store
+ str r3, [r2], #4
+ add r6, r6, #1
+ b subn_loop
+
+end_program
+ str r6, [r2]
+ end