Drop MCBs as mean to manage memory

boot/kernel.asm

@@ -1,9 +1,8 @@
 	cpu 8086
-	org 0
-	jmp 0x07C0:init
+	org 0x500
+	jmp init
 
 	%include "inc/bpb.asm"
-	%include "kernel/mcb.asm"
 
 banner:	db "rdos", 0xA, 0xD, 0
 
@@ -223,21 +222,7 @@ ldbpb:	push ds
 	pop ds
 	ret
 
-init:	cli
-	mov ax, cs
-	mov ds, ax
-	mov es, ax
-	mov ss, ax
-	xor sp, sp
-
-	call dnconv
-	call select
-
-	call mcb_init
-
-main:	push cs
-	pop ds
-	mov si, banner
+main:	mov si, banner
 	mov ah, 0x0e
 	xor bx, bx
 loop:	lodsb
@@ -248,3 +233,19 @@ loop:	lodsb
 end:	hlt
 	jmp end
 
+init:	cli
+	xor ax, ax
+	mov ds, ax
+	mov es, ax
+	mov ss, ax
+	xor sp, sp
+
+	mov si, 0x7C00
+	mov di, $$
+	mov cx, (init-$$)
+	rep movsb
+
+	call dnconv
+	call select
+
+	jmp 0:main