fix: put inb outb to header

headers/sys/io.h

@@ -1,4 +1,16 @@
 #pragma once
 
-inline uint8_t inb(uint16_t port);
-inline void outb(uint16_t port, uint8_t val);
+static inline void outb(uint16_t port, uint8_t val)
+{
+    __asm__ volatile ( "outb %b0, %w1" : : "a"(val), "Nd"(port) : "memory");
+}
+
+static inline uint8_t inb(uint16_t port)
+{
+    uint8_t ret;
+    __asm__ volatile ( "inb %w1, %b0"
+                   : "=a"(ret)
+                   : "Nd"(port)
+                   : "memory");
+    return ret;
+}

src/sys/io/inb.c

@@ -1,10 +0,0 @@
-
-inline uint8_t inb(uint16_t port)
-{
-    uint8_t ret;
-    __asm__ volatile ( "inb %w1, %b0"
-                   : "=a"(ret)
-                   : "Nd"(port)
-                   : "memory");
-    return ret;
-}

src/sys/io/outb.c

@@ -1,4 +0,0 @@
-inline void outb(uint16_t port, uint8_t val)
-{
-    __asm__ volatile ( "outb %b0, %w1" : : "a"(val), "Nd"(port) : "memory");
-}