Files for part 2, https://www.youtube.com/watch?v=ZiHtuBnVrx4

kernel.cpp

@@ -1,7 +1,9 @@
 
+#include "types.h"
+
 void printf(char* str)
 {
-    static unsigned short* VideoMemory = (unsigned short*)0xb8000;
+    static uint16_t* VideoMemory = (uint16_t*)0xb8000;
 
     for(int i = 0; str[i] != '\0'; ++i)
         VideoMemory[i] = (VideoMemory[i] & 0xFF00) | str[i];
@@ -20,7 +22,7 @@ extern "C" void callConstructors()
 
 
 
-extern "C" void kernelMain(const void* multiboot_structure, unsigned int /*multiboot_magic*/)
+extern "C" void kernelMain(const void* multiboot_structure, uint32_t /*multiboot_magic*/)
 {
     printf("Hello World! --- http://www.AlgorithMan.de");
 

makefile

@@ -1,5 +1,6 @@
 
 # sudo apt-get install g++ binutils libc6-dev-i386
+# sudo apt-get install VirtualBox grub-legacy xorriso
 
 GCCPARAMS = -m32 -fno-use-cxa-atexit -nostdlib -fno-builtin -fno-rtti -fno-exceptions -fno-leading-underscore
 ASPARAMS = --32
@@ -18,6 +19,25 @@ objects = loader.o kernel.o
 mykernel.bin: linker.ld $(objects)
 	ld $(LDPARAMS) -T $< -o $@ $(objects)
 
+mykernel.iso: mykernel.bin
+	mkdir iso
+	mkdir iso/boot
+	mkdir iso/boot/grub
+	cp mykernel.bin iso/boot/mykernel.bin
+	echo 'set timeout=0'                      > iso/boot/grub/grub.cfg
+	echo 'set default=0'                     >> iso/boot/grub/grub.cfg
+	echo ''                                  >> iso/boot/grub/grub.cfg
+	echo 'menuentry "My Operating System" {' >> iso/boot/grub/grub.cfg
+	echo '  multiboot /boot/mykernel.bin'    >> iso/boot/grub/grub.cfg
+	echo '  boot'                            >> iso/boot/grub/grub.cfg
+	echo '}'                                 >> iso/boot/grub/grub.cfg
+	grub-mkrescue --output=mykernel.iso iso
+	rm -rf iso
+
+run: mykernel.iso
+	(killall VirtualBox && sleep 1) || true
+	VirtualBox --startvm 'My Operating System' &
+
 install: mykernel.bin
 	sudo cp $< /boot/mykernel.bin
 

types.h

@@ -0,0 +1,13 @@
+#ifndef __TYPES_H
+#define __TYPES_H
+
+    typedef char                     int8_t;
+    typedef unsigned char           uint8_t;
+    typedef short                   int16_t;
+    typedef unsigned short         uint16_t;
+    typedef int                     int32_t;
+    typedef unsigned int           uint32_t;
+    typedef long long int           int64_t;
+    typedef unsigned long long int uint64_t;
+
+#endif