diff options
Diffstat (limited to 'Year_1/Computer_Architecture/counter_numbers.asm')
| -rw-r--r-- | Year_1/Computer_Architecture/counter_numbers.asm | 33 |
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 |