feat: add basic minishell input output

src/main.s

@@ -1,6 +1,30 @@
-.global _start
+.global	_start
 
+.section	.data 
+msg:
+	.ascii "[minishell]$ "
+len = . - msg
+
+.section	.bss
+buffer:
+	.skip 128 
+
+.section	.text
 _start:
-    mov $60, %rax
+	mov $1,	%rax
-    xor %rdi, %rdi
+	mov $1,	%rdi
-    syscall
+	lea	msg(%rip), %rsi
+	mov	$len, %rdx
+	syscall
+
+	mov $0,	%rax
+	mov $0,	%rdi
+	lea	buffer(%rip), %rsi
+	mov	$128, %rdx
+	syscall
+
+	jmp _start
+
+	mov $60, %rax
+	xor %rdi, %rdi
+	syscall