Removing an oopsie

Makefile

@@ -13,11 +13,11 @@ kernel-i386.elf: kernel.o start32.o vga.o
 	tcc -m32 -nostdlib -Wl,-Ttext,0x100000 start32.o kernel.o vga.o -o kernel-i386.elf
 
 qemu-multiboot: kernel-i386.elf
-	qemu-system-i386 -kernel kernel-i386.elf -serial file:CON
+	qemu-system-i386 -kernel kernel-i386.elf -serial stdio
 qemu-image: kernel-i386.elf mount
 	cp kernel-i386.elf mnt/
 	sync
-	qemu-system-i386 koalemos.img
+	qemu-system-i386 koalemos.img -serial stdio 
 
 mount: koalemos.img mnt/
 	@if ! mountpoint -q "mnt/"; then \

kernel.c

@@ -1,11 +1,9 @@
 #include "multiboot.h"
 #include "vga.h"
 
-/*
+static inline void outb(unsigned short port, unsigned char val) {
-static inline void outb(unsigned int port, unsigned char val) {
   asm volatile ("outb %0, %1" : : "a"(val), "Nd"(port) : "memory");
 }
-*/
 
 char* itoa(int value, int base) {
     char* result;
@@ -36,9 +34,8 @@ char* itoa(int value, int base) {
 void kmain (unsigned int mbootmagick, multiboot_info_t* mbootinfo) {
 
     // Cursor disabling
-    // TODO: outb function
+    outb(0x3D4, 0x0A);
-    //outb(0x3D4, 0x0A);
+    outb(0x3D5, 0x20);
-    //outb(0x3D5, 0x20);
 
     //cls();
     vga_init(VGA_COLOR_BLACK, VGA_COLOR_GRAY);
@@ -78,5 +75,4 @@ void kmain (unsigned int mbootmagick, multiboot_info_t* mbootinfo) {
     }
 
     vga_write_line("\nExecution finished, halting...");
-    *(unsigned char *)0xb8000 = '!';
 }

start32.asm

@@ -32,30 +32,10 @@ section '.text' executable
 	public  _start
 	extrn   kmain
 
-disable_cursor:
-	pushf
-	push eax
-	push edx
-
-	mov dx, 0x3D4
-	mov al, 0xA	; low cursor shape register
-	out dx, al
-
-	inc dx
-	mov al, 0x20	; bits 6-7 unused, bit 5 disables the cursor, bits 0-4 control the cursor shape
-	out dx, al
-
-	pop edx
-	pop eax
-	popf
-	ret
-
 _start:
 	; Setup stack
 	mov esp, stack_top
 
-	call disable_cursor
-
 	; Call the main kernel function.
 	push ebx
 	push eax

vga.h

@@ -1,3 +1,5 @@
+#ifndef HEADER_VGA
+#define HEADER_VGA
 
 enum vga_color {
 	VGA_COLOR_BLACK = 0,
@@ -18,3 +20,5 @@ void vga_write(const char* text);
 void vga_write_color( const char* text, enum vga_color fg, enum vga_color bg);
 void vga_write_line(const char* text);
 void vga_write_line_color( const char* text, enum vga_color fg, enum vga_color bg);
+
+#endif