diff options
| author | Kartik Agaram <vc@akkartik.com> | 2019-07-27 16:01:55 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-07-27 17:47:59 -0700 |
| commit | 6e1eeeebfb453fa7c871869c19375ce60fbd7413 (patch) | |
| tree | 539c4a3fdf1756ae79770d5c4aaf6366f1d1525e /examples/ex1.subx | |
| parent | 8846a7f85cc04b77b2fe8a67b6d317723437b00c (diff) | |
| download | mu-6e1eeeebfb453fa7c871869c19375ce60fbd7413.tar.gz | |
5485 - promote SubX to top-level
Diffstat (limited to 'examples/ex1.subx')
| -rw-r--r-- | examples/ex1.subx | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/examples/ex1.subx b/examples/ex1.subx new file mode 100644 index 00000000..0aca40f8 --- /dev/null +++ b/examples/ex1.subx @@ -0,0 +1,21 @@ +# First program: same as https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html +# Just return 42. +# +# To run (from the subx directory): +# $ ./subx translate examples/ex1.2.subx -o examples/ex1 +# $ ./subx run examples/ex1 +# Expected result: +# $ echo $? +# 42 + +== code 0x09000000 + +Entry: +# syscall(exit, 42) +bb/copy-to-EBX 2a/imm32 # 42 in hex +b8/copy-to-EAX 1/imm32/exit +cd/syscall 0x80/imm8 + +== data 0x0a000000 + +# . . vim:nowrap:textwidth=0 |