diff options
Diffstat (limited to '')
| -rw-r--r-- | test/masm/fncall.asm | 3 | ||||
| -rw-r--r-- | test/masm/fpe.asm (renamed from test/masm/div.asm) | 1 | ||||
| -rw-r--r-- | test/masm/hello.asm | 1 | ||||
| -rw-r--r-- | test/masm/recursion.asm | 41 | ||||
| -rw-r--r-- | test/masm/segv.asm (renamed from test/masm/fault.asm) | 1 |
5 files changed, 47 insertions, 0 deletions
diff --git a/test/masm/fncall.asm b/test/masm/fncall.asm index 96d1ba2..39455ab 100644 --- a/test/masm/fncall.asm +++ b/test/masm/fncall.asm @@ -11,6 +11,7 @@ result: move $t0, $a0 move $v0, $t0 jr $ra + nop main: # save ra on stack @@ -20,6 +21,7 @@ main: # set return to 17 li $a0, 17 jal result + nop # pop ra from stack lw $ra, 0($sp) @@ -27,3 +29,4 @@ main: # return result jr $ra + nop diff --git a/test/masm/div.asm b/test/masm/fpe.asm index b9b4f3f..a3725d5 100644 --- a/test/masm/div.asm +++ b/test/masm/fpe.asm @@ -15,3 +15,4 @@ main: # return li $v0, 0 jr $ra + nop diff --git a/test/masm/hello.asm b/test/masm/hello.asm index 2d64ae5..3819b2a 100644 --- a/test/masm/hello.asm +++ b/test/masm/hello.asm @@ -24,3 +24,4 @@ main: # return 1 li $v0, 0 jr $ra + nop diff --git a/test/masm/recursion.asm b/test/masm/recursion.asm new file mode 100644 index 0000000..38982e1 --- /dev/null +++ b/test/masm/recursion.asm @@ -0,0 +1,41 @@ +# Copyright (c) 2024 Freya Murphy + +# file: recursion.asm +# test: should recurse sum n..0 numbers + +.text +.align 2 +.globl main + +main: + # init $a0 + li $a0, 5 + +sum: + # save stack + addiu $sp, $sp, -8 + sw $ra, 0($sp) + sw $s0, 4($sp) + + # load n from a0 + move $s0, $a0 + + # skip if n is zero + li $v0, 0 + beq $s0, $zero, add + nop + jal sum + addi $a0, $s0, -1 + +add: + # n = n + returned + add $v0, $s0, $v0 + + # restore stack + lw $ra, 0($sp) + lw $s0, 4($sp) + addiu $sp, $sp, 8 + + # return + jr $ra + nop diff --git a/test/masm/fault.asm b/test/masm/segv.asm index df700cf..4102bc2 100644 --- a/test/masm/fault.asm +++ b/test/masm/segv.asm @@ -13,3 +13,4 @@ main: # return li $v0, 0 jr $ra + nop |