.global _start

.global addathing

.text
_start:

    addi    a0, zero, 0x134
    nop
    nop
    nop
    nop
    nop
    call    addathing
    nop
    nop
    nop
    nop
    nop
    addi    a1, zero, 0x163     # a1 = a0 + 0x29
    

done:
    la      x31, failcode       # x30 = 
    addi    x30, x0, 0xff       # x31 = 0x000000ff
    slli    x30, x30, 8         # x31 = 0x0000ff00
    addi    x30, x30, 0xff      # x31 = 0x0000ffff
    slli    x30, x30, 8         # x31 = 0x00ffff00
    addi    x30, x30, 0xff      # x31 = 0x00ffffff
    slli    x30, x30, 8         # x31 = 0xffffff00
    addi    x30, x30, 0xff      # x31 = 0xffffffff
    # slli    x30, x30, 1         # x31 = 0xfffffffe // this should cause a fail
    nop
    nop
    nop
    nop
    nop
    sw      x30, 0(x31)         # failcode = 0xffffffff
    nop
    nop
    nop
    nop
    nop

    lui     x30, 0x10101        # x30 = 0x10101000
    addi    x30, x30, 0x010     # x30 = 0x10101010

    # set registers to known values before loop
    addi    x2, x0, 1           # x2 = 1
    addi    x3, x0, 1           # x3 = 1
    addi    x4, x0, 1           # x4 = 1
    addi    x5, x0, 1           # x5 = 1
    addi    x6, x0, 1           # x6 = 1


fail:
    la      x31, failcode       # x31 =
    nop
    nop
    nop
    nop
    nop
    sw      x30, 0(x31)         # failcode = test number
    nop
    nop
    nop
    nop
    nop
    # set some registers to make it blatantly obvious an error occurred
    addi    x1, x0, 0x7ff       # x1 = 0x1111
    addi    x2, x0, 0x7ff       # x1 = 0x1111
    addi    x3, x0, 0x7ff       # x1 = 0x1111
    addi    x4, x0, 0x7ff       # x1 = 0x1111
    addi    x5, x0, 0x7ff       # x1 = 0x1111
    addi    x6, x0, 0x7ff       # x1 = 0x1111
    addi    x7, x0, 0x7ff       # x1 = 0x1111
    addi    x8, x0, 0x7ff       # x1 = 0x1111
    addi    x9, x0, 0x7ff       # x1 = 0x1111
    j       fail                # loop forever
    nop
    nop
    nop
    nop
    nop
    nop


.data
failcode:
    .word 0x00000000

.bss