factorial.s

main:
        addi    a0, zero, 8
        jal     fact
        jalr    x0, x1, 0

fact:                       
        addi    sp, sp, -32
        sw      ra, 28(sp)
        sw      s0, 24(sp)
        addi    s0, sp, 32

        mv      a1, a0
        sw      a0, -16(s0)                         

        lw      a0, -16(s0)
        mv      a2, zero 
        sw      a1, -20(s0)
        bne     a0, a2, .LBB0_2 
        j       .LBB0_1
.LBB0_1:
        addi    a0, zero, 1

        sw      a0, -12(s0)
        j       .LBB0_3
.LBB0_2:
        lw      a0, -16(s0)
        addi    a1, a0, -1
        sw      a0, -24(s0)
        mv      a0, a1
        jal     ra, fact

        lw      a1, -24(s0)
        mul     a0, a0, a1
        sw      a0, -12(s0)
        j       .LBB0_3
.LBB0_3:
        lw      a0, -12(s0)
        lw      s0, 24(sp)
        lw      ra, 28(sp)
        addi    sp, sp, 32
        jalr    x0, x1, 0