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-rw-r--r--test/lnxhello.asm54
1 files changed, 54 insertions, 0 deletions
diff --git a/test/lnxhello.asm b/test/lnxhello.asm
new file mode 100644
index 0000000..1aa5a5f
--- /dev/null
+++ b/test/lnxhello.asm
@@ -0,0 +1,54 @@
+;Testname=aout; Arguments=-faout -olnxhello.o -Ox; Files=stdout stderr lnxhello.o
+;Testname=aoutb; Arguments=-faoutb -olnxhello.o -Ox; Files=stdout stderr lnxhello.o
+;Testname=as86; Arguments=-fas86 -olnxhello.o -Ox; Files=stdout stderr lnxhello.o
+;Testname=elf32; Arguments=-felf32 -olnxhello.o -Ox; Files=stdout stderr lnxhello.o
+
+;
+; Assembly "Hello, World!" for Linux
+;
+
+
+; Properly defined in <sys/syscall.h>
+%define SYS_exit 1
+%define SYS_write 4
+
+ section .text
+
+ global _start
+_start:
+ ; gdb doesn't like to stop at the entry point address, so
+ ; we put a nop here for pure convenience
+ nop
+
+
+write_hello:
+ mov edx, hello_len
+ mov ecx, hello
+
+.loop:
+ mov eax, SYS_write
+ mov ebx, 1 ; stdout
+ int 80h
+
+ cmp eax, -4096
+ ja error
+
+ add ecx, eax
+ sub edx, eax
+ jnz .loop
+
+ok:
+ mov eax, SYS_exit
+ xor ebx, ebx
+ int 80h
+ hlt
+
+error:
+ mov eax, SYS_exit
+ mov ebx, 1 ; Error
+ int 80h
+ hlt
+
+ section .rodata
+hello: db "Hello, World!", 10
+hello_len equ $-hello