diff options
Diffstat (limited to 'linux/ex1.subx')
| -rw-r--r-- | linux/ex1.subx | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/linux/ex1.subx b/linux/ex1.subx new file mode 100644 index 00000000..d1968415 --- /dev/null +++ b/linux/ex1.subx @@ -0,0 +1,18 @@ +# First program: same as https://www.muppetlabs.com/~breadbox/software/tiny/teensy.html +# Just return 42. +# +# To run: +# $ ./bootstrap translate init.linux apps/ex1.subx -o apps/ex1 +# $ ./bootstrap run apps/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 |