test: nasm-t -- Add lnxhello

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>

travis/test/lnxhello.asm

@@ -0,0 +1,49 @@
+;
+; 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

travis/test/lnxhello.json

@@ -0,0 +1,11 @@
+[
+	{
+		"description": "Assembly 'Hello, World! for Linux",
+		"id": "lnxhello",
+		"format": "elf32",
+		"source": "lnxhello.asm",
+		"target": [
+			{ "output": "lnxhello.o" }
+		]
+	}
+]