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| author | Johannes Stoelp <johannes.stoelp@gmail.com> | 2023-02-05 18:35:26 +0100 |
|---|---|---|
| committer | Johannes Stoelp <johannes.stoelp@gmail.com> | 2023-02-05 18:35:26 +0100 |
| commit | 724d077860e103631605f09a7de35e3ad8796f56 (patch) | |
| tree | f7d94c536d3c70f62fb548c95f1835091801a9ff /src/tools/qemu-src/test.s | |
| parent | 728d263753b998b8944a66eec1be0e743961fa1c (diff) | |
| download | notes-724d077860e103631605f09a7de35e3ad8796f56.tar.gz notes-724d077860e103631605f09a7de35e3ad8796f56.zip | |
qemu: cheap insn trace example
Diffstat (limited to 'src/tools/qemu-src/test.s')
| -rw-r--r-- | src/tools/qemu-src/test.s | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/tools/qemu-src/test.s b/src/tools/qemu-src/test.s new file mode 100644 index 0000000..562b2ec --- /dev/null +++ b/src/tools/qemu-src/test.s @@ -0,0 +1,16 @@ +.section .text, "ax" + +.global _start +_start: + xor %rax, %rax + mov $0x8, %rax +1: + cmp $0, %rax + je 2f + dec %rax + jmp 1b +2: + # x86-64 exit(2) syscall + mov $0, %rdi + mov $60, %rax + syscall |