Fixed input macros.

1 files changed, 6 insertions, 6 deletions

diff --git a/kernel/portio.h b/kernel/portio.h
index f9caf33..9f2b07b 100644
--- a/kernel/portio.h
+++ b/kernel/portio.h
@@ -1,13 +1,13 @@
 #ifndef PORTIO_H
 #define PORTIO_H
 
-#define outb(port, value) asm volatile("outb %b0, %w1" : : "a" (value), "d" (port));
-#define inb(port, value) asm volatile("inb %w1, %b0" : : "a" (value), "d" (port));
+#define outb(port, value) asm volatile("outb %b0, %w1" :: "a" (value), "d" (port));
+#define inb(port, value) asm volatile("inb %w1, %b0" : "=a" (value) : "d" (port));
 
-#define outw(port, value) asm volatile("outw %w0, %w1" : : "a" (value), "d" (port));
-#define inw(port, value) asm volatile("inw %w1, %w0" : : "a" (value), "d" (port));
+#define outw(port, value) asm volatile("outw %w0, %w1" :: "a" (value), "d" (port));
+#define inw(port, value) asm volatile("inw %w1, %w0" : "=a" (value) : "d" (port));
 
-#define outl(port, value) asm volatile("outl %0, %w1" : : "a" (value), "d" (port));
-#define inl(port, value) asm volatile("inl %w1, %0" : : "a" (value), "d" (port));
+#define outl(port, value) asm volatile("outl %0, %w1" :: "a" (value), "d" (port));
+#define inl(port, value) asm volatile("inl %w1, %0" : "=a" (value) : "d" (port));
 
 #endif