Import the "gerbert" kernel I worked on earlier this year.

It's a lot crappier than I remembered it. It's gonna need a lot of work.

Kernel/Disk.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "types.h"
+#include "DataBuffer.h"
+
+#define IDE0_DATA        0x1F0
+#define IDE0_STATUS      0x1F7
+#define IDE0_COMMAND     0x1F7
+#define BUSY             0x80
+#define DRDY             0x40
+#define DRQ              0x08
+#define IDENTIFY_DRIVE   0xEC
+#define READ_SECTORS     0x21
+
+#define IDE0_DISK0       0
+#define IDE0_DISK1       1
+#define IDE1_DISK0       2
+#define IDE1_DISK1       3
+
+typedef struct
+{
+    WORD cylinders;
+    WORD heads;
+    WORD sectors_per_track;
+} ide_drive_t;
+
+extern void ide_init();
+extern ide_drive_t drive[4];
+
+namespace Disk {
+
+void initialize();
+bool readSectors(DWORD sectorIndex, WORD count, BYTE* buffer);
+
+}