diff options
Diffstat (limited to 'linux/apps/ex1.subx')
| -rw-r--r-- | linux/apps/ex1.subx | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/linux/apps/ex1.subx b/linux/apps/ex1.subx new file mode 100644 index 00000000..0406dbe8 --- /dev/null +++ b/linux/apps/ex1.subx @@ -0,0 +1,20 @@ +# First example: return the answer to the Ultimate Question of Life, the +# Universe, and Everything. +# +# Same as https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html +# +# To run: +# $ bootstrap/bootstrap translate apps/ex1.subx -o ex1 +# $ bootstrap/bootstrap run ex1 +# Expected result: +# $ echo $? +# 42 + +== code + +Entry: +# exit(42) +bb/copy-to-ebx 0x2a/imm32 # 42 in hex +e8/call syscall_exit/disp32 + +# . . vim:nowrap:textwidth=0 |