feat: Initial commit

Laboratorio9/bisestile.asm

@@ -0,0 +1,70 @@
+    LUNG    =,          6
+.data
+anni: .word 1945, 2008, 1800, 2006, 1748, 1600
+ris: .space LUNG
+.text
+.globl main
+.ent main
+main:
+    la      $a0,        anni
+    la      $a1,        ris
+    li      $a2,        LUNG
+    jal     bisestile
+    li      $v0,        10                      # codice per uscita dal programma
+    syscall                                     # fine
+.end main
+
+.ent bisestile
+bisestile:
+    addi $sp, $sp, -4
+    sw $ra, ($sp)
+
+    li      $s0,        0
+    sll     $a2,        $a2,    2
+    addu    $s1,        $a0,    $a2
+    move    $s2,        $a0
+    move    $s3,        $a1
+
+loop:
+    lw      $a0,        ($s2)
+    jal     bisestileS
+    beq     $v0,        $0,     skip
+    addiu   $s0,        $s0,    1
+skip:
+    sb      $v0,        ($s3)
+
+    addiu   $s2,        $s2,    4
+    addiu   $s3,        $s3,    1
+    bne     $s2,        $s1,    loop
+
+    move    $v0,        $s0
+    lw $ra, ($sp)
+    addi $sp, $sp, 4
+    jr      $ra
+.end bisestile
+
+.ent bisestileS
+bisestileS:
+                                                # anno in $a0
+    li      $t0,        400
+    div     $a0,        $t0
+    mfhi    $t0
+    beq     $t0,        0,      bis
+
+    li      $t0,        100
+    div     $a0,        $t0
+    mfhi    $t0
+    beq     $t0,        0,      nbis
+
+    li      $t0,        4
+    div     $a0,        $t0
+    mfhi    $t0
+    beq     $t0,        0,      bis
+
+nbis:
+    li      $v0,        0
+    jr      $ra
+bis:
+    li      $v0,        1
+    jr      $ra
+.end bisestileS