diff options
Diffstat (limited to 'linux/apps/ex2.subx')
| -rw-r--r-- | linux/apps/ex2.subx | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/linux/apps/ex2.subx b/linux/apps/ex2.subx new file mode 100644 index 00000000..40955104 --- /dev/null +++ b/linux/apps/ex2.subx @@ -0,0 +1,20 @@ +# Add 3 and 4, and return the result in the exit code. +# +# To run: +# $ bootstrap/bootstrap translate apps/ex2.subx -o ex2 +# $ bootstrap/bootstrap run ex2 +# Expected result: +# $ echo $? +# 2 + +== code + +Entry: +# ebx = 3 +bb/copy-to-ebx 3/imm32 +# add 4 to ebx +81 0/subop/add 3/mod/direct 3/rm32/ebx 4/imm32 +# exit(ebx) +e8/call syscall_exit/disp32 + +# . . vim:nowrap:textwidth=0 |