diff options
| -rw-r--r-- | .gitignore | 2 | ||||
| -rwxr-xr-x | build.sh | 2 | ||||
| -rw-r--r-- | cat.s | 16 |
3 files changed, 20 insertions, 0 deletions
diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..a61ce72 --- /dev/null +++ b/.gitignore @@ -0,0 +1,2 @@ +*.o +cat diff --git a/build.sh b/build.sh new file mode 100755 index 0000000..a99b820 --- /dev/null +++ b/build.sh @@ -0,0 +1,2 @@ +nasm -f elf64 cat.s -o cat.o +ld cat.o -o cat @@ -0,0 +1,16 @@ + global _start + section .text +_start: + mov rax, 1 + mov rdi, 1 + mov rsi, msg + mov rdx, msgSize + syscall + + mov rax, 60 + mov rdi, 0 + syscall + + section .data +msg: db "Hello, world!", 10 +msgSize: EQU $ - msg |