Added header and asm file for assembly function wrappers

include/asm.h

@@ -0,0 +1,16 @@
+/*  asm.h
+*   Assembly wrappers
+*
+*   Wrapper functions for using assembly files.
+*/
+#ifndef ASM_H
+#define ASM_H
+#include <stdint.h>
+
+#define COM1 0x3F8
+#define COM2 0x2F8
+
+void outb(uint16_t port, uint8_t data);
+uint8_t inb(uint16_t port);
+
+#endif

src/asm.s

@@ -0,0 +1,13 @@
+global outb, inb
+section .text
+    outb:
+        mov dx, [esp+4]
+        mov al, [esp+8]
+        out dx, al 
+        ret
+
+    inb:
+        mov eax, 0
+        mov dx, [esp+4]
+        in al, dx
+        ret