diff --git a/sources/BaS.c b/sources/BaS.c
index fe925a6..0475d7b 100644
--- a/sources/BaS.c
+++ b/sources/BaS.c
@@ -8,15 +8,12 @@
 #include "MCF5475_SLT.h"
 #include "startcf.h"
 
-extern unsigned long far __SP_AFTER_RESET[];
-extern unsigned long far __Bas_base[];
+extern unsigned long __Bas_base[];
 
 	/* imported routines */
 extern int mmu_init();
-extern int mmutr_miss();
 extern int vec_init();
 extern int illegal_table_make();
-extern int cf68k_initialize();
 
 /*
  * warte_routinen
@@ -70,6 +67,8 @@ void BaS(void)
 	int	sd_status,i;
 	uint8_t *src;
 	uint8_t *dst;
+	uint32_t *adr;
+
 	az_sectors = sd_card_init();
 		
 	if(az_sectors>0)
@@ -98,7 +97,7 @@ void BaS(void)
 	{
 		/* copy EMUTOS */
 		src = (uint8_t *) 0xe0600000L;
-		while (src < 0xe0700000L)
+		while (src < (uint8_t *) 0xe0700000L)
 		{
 			*dst++ = *src++;
 		}
@@ -106,159 +105,121 @@ void BaS(void)
 	else
 	{
 		/* copy FireTOS */
-		src = 0xe0400000L;
-		while (src < 0xe0500000L)
+		src = (uint8_t *) 0xe0400000L;
+		while (src < (uint8_t *) 0xe0500000L)
 		{
 			*dst++ = *src++;
 		}
 	}
 
-	if (!DIP_SWITCH & (1 << 6))
+	if (!DIP_SWITCH & (1 << 6))	/* switch #6 on ? */
 	{
-
+		if (MCF_PSC3_PSCRB_8BIT == 0x81)
+		{
+			for (i = 0; i < 64; i++)
+			{
+				* (uint8_t *) 0xffff8963 = MCF_PSC3_PSCRB_8BIT;	/* TODO: what are we doing here ? */
+			}
+		}
 	}
 
-/***************************************************************/
-/*   div inits       
-/***************************************************************/
-div_inits:
-		move.b	DIP_SWITCH,d0				// dip schalter adresse
-		btst.b	#6,d0
-		beq		video_setup
-// rtc daten, mmu set, etc nur wenn switch 6 = off
-		lea		0xffff8961,a0
-		clr.l	d1	
-		moveq	#64,d2
-		move.b	(a4),d0
-		cmp.b	#0x81,d0
-		bne		not_rtc	
-loop_sr:
-		move.b	(a4),d0
-		move.b  d1,(a0)
-		move.b	d0,2(a0)
-		addq.l	#1,d1
-		cmp.b	d1,d2
-		bne		loop_sr
-/*
+#ifdef _NOT_USED_
+	/*
+	 * set the NVRAM checksum as invalid
+	 */
 		// Set the NVRAM checksum as invalid
 		move.b	#63,(a0)
 		move.b	2(a0),d0
 		add		#1,d0
 		move.b	d0,2(a0)
-*/
-not_rtc:
-		bsr		mmu_init
-		bsr		vec_init
-		bsr		illegal_table_make
+#endif /* NOT_USED */
+
+	mmu_init();
+	vec_init();
+	illegal_table_make();
 		
-// interrupts
-		clr.l	0xf0010004					// disable all interrupts
-		lea		MCF_EPORT_EPPAR,a0
-		move.w	#0xaaa8,(a0)				// falling edge all,
+	/* interrupts */
 
-// timer 0 on mit int -> video change -------------------------------------------
-		move.l	#MCF_GPT_GMS_ICT(1)|MCF_GPT_GMS_IEN|MCF_GPT_GMS_TMS(1),d0	//caputre mit int on rising edge
-		move.l	d0,MCF_GPT0_GMS
-		moveq.l	#0x3f,d0					// max prority interrutp
- 		move.b	d0,MCF_INTC_ICR62			// setzen
-// -------------------------------------------------
-		move.b	#0xfe,d0
-		move.b	d0,0xf0010004				// enable int 1-7
-		nop
-		lea		MCF_EPORT_EPIER,a0
-		move.b	#0xfe,(a0)					// int 1-7 on
-		nop
-		lea		MCF_EPORT_EPFR,a0
-		move.b	#0xff,(a0)					// alle pending interrupts l�schen
-		nop
-		lea		MCF_INTC_IMRL,a0
-		move.l	#0xFFFFFF00,(a0)			// int 1-7 on
-		lea		MCF_INTC_IMRH,a0
-		move.l	#0xBFFFFFFE,(a0)			// psc3 and timer 0 int on
+	* (uint32_t *) 0xf0010004 = 0L;	/* disable all interrupts */
+	MCF_EPORT_EPPAR = 0xaaa8;		/* all interrupts on falling edge */
 
-		move.l	#MCF_MMU_MMUCR_EN,d0
-  		move.l	d0,MCF_MMU_MMUCR			// mmu on
-		nop
-		nop
-/********************************************************************/
-/* IDE reset
-/********************************************************************/
-		lea		0xffff8802,a0
-		move.b	#14,-2(a0)
-		move.b	#0x80,(a0)
-		bsr		warte_1ms
-		clr.b	(a0)
-/********************************************************************/
-/* video setup
-/********************************************************************/
-video_setup:
-		lea		0xf0000410,a0
-// 25MHz
- 		move.l	#0x032002ba,(a0)+			// horizontal 640x480
-		move.l	#0x020c020a,(a0)+			// vertikal 640x480
-		move.l	#0x0190015d,(a0)+			// horizontal 320x240
-		move.l	#0x020C020A,(a0)+			// vertikal 320x240 */
-/*
+	MCF_GPT0_GMS = MCF_GPT_GMS_ICT(1) |	/* timer 0 on, video change capture on rising edge */
+			MCF_GPT_GMS_IEN |
+			MCF_GPT_GMS(1);
+	MCF_INTC_ICR62 = 0x3f;
+
+	* (uint8_t *) 0xf0010004 = 0xfe;	/* enable int 1-7 */
+	MCF_EPORT_EPIER = 0xfe;				/* int 1-7 on */
+	MCF_EPORT_EPFR = 0xff;				/* clear all pending interrupts */
+	MCF_INTC_IMRL = 0xffffff00;			/* int 1-7 on */
+	MCF_INTC_IMRH = 0x9ffffffe;			/* psc3 and timer 0 int on */
+
+	MCF_MMU_MMUCR = MCF_MMU_MMUCR_EN;	/* MMU on */
+
+	/* IDE reset */
+	* (uint8_t *) (0xffff8802 - 2) = 14;
+	* (uint8_t *) (0xffff8802 - 0) = 0x80;
+	warte_1ms();
+
+	* (uint8_t *) (0xffff8802 - 0) = 0;
+
+	/*
+	 * video setup (25MHz)
+	 */
+	* (uint32_t *) (0xf0000410 + 0) = 0x032002ba;	/* horizontal 640x480 */
+	* (uint32_t *) (0xf0000410 + 4) = 0x020c020a;	/* vertical 640x480 */
+	* (uint32_t *) (0xf0000410 + 8) = 0x0190015d;	/* horizontal 320x240 */
+	* (uint32_t *) (0xf0000410 + 12) = 0x020C020A;	/* vertical 320x230 */
+
+#ifdef _NOT_USED_
 //  32MHz
 		move.l	#0x037002ba,(a0)+			// horizontal 640x480
 		move.l	#0x020d020a,(a0)+			// vertikal 640x480
 		move.l	#0x02A001e0,(a0)+			// horizontal 320x240
 		move.l	#0x05a00160,(a0)+			// vertikal 320x240 
-*/
-		lea		-0x20(a0),a0
-		move.l	#0x01070002,(a0)			// fifo on, refresh on, ddrcs und cke on, video dac on,
-/********************************************************************/
-/* memory setup
-/********************************************************************/
- 		lea		0x400,a0
-		lea		0x800,a1
-mem_clr_loop:
-		clr.l	(a0)+
-		clr.l	(a0)+
-		clr.l	(a0)+
-		clr.l	(a0)+
-		cmp.l	a0,a1
-		bgt		mem_clr_loop
+#endif /* _NOT_USED_ */
 
-		moveq	#0x48,d0
-		move.b	d0,0xffff8007
-// stram
-		move.l	#0xe00000,d0				// ende stram
-		move.l	d0,0x42e
-		move.l	#0x752019f3,d0				// memvalid
-		move.l	d0,0x420
-		move.l	#0x237698aa,d0				// memval2
-		move.l	d0,0x43a
-		move.l	#0x5555aaaa,d0				// memval3
-		move.l	d0,0x51a
-// ttram
-   		move.l	#__Bas_base,d0				// ende ttram		
-  		move.l	d0,0x5a4
-  		move.l	#0x1357bd13,d0				// ramvalid
-   		move.l	d0,0x5a8
-   		
-// init acia
-		moveq	#3,d0
-		move.b	d0,0xfffffc00
-		nop
-		move.b	d0,0xfffffc04
-		nop
-		moveq	#0x96,d0
-		move.b	d0,0xfffffc00
-		moveq	#-1,d0
-		nop
-		move.b	d0,0xfffffa0f
-		nop
-		move.b	d0,0xfffffa11
-		nop
-		
-// test auf protect mode ---------------------
-		move.b	DIP_SWITCH,d0
-		btst	#7,d0 
-		beq		no_protect					// nein->
-		move.w	#0x0700,sr
-no_protect:
-		jmp		0xe00030
+	/* fifo on, refresh on, ddrcs and cke on, video dac on */
+	* (uint32_t *) (0xf0000410 - 0x20) = 0x01070002;
 
-}
+	/*
+	 * memory setup
+	 */
+	for (adr = 0x400; adr < 0x800; adr += 32) {
+		*adr = 0x0L;
+		*adr = 0x0L;
+		*adr = 0x0L;
+		*adr = 0x0L;
+	}
+
+	* (uint8_t *) 0xffff8007 = 0x48;	/* FIXME: what's that ? */
+
+	/* ST RAM */
+
+	* (uint32_t *) 0x42e = 0xe00000;	/* phystop TOS system variable */
+	* (uint32_t *) 0x420 = 0x752019f3;	/* memvalid TOS system variable */
+	* (uint32_t *) 0x43a = 0x237698aa;	/* memval2 TOS system variable */
+	* (uint32_t *) 0x51a = 0x5555aaaa;	/* memval3 TOS system variable */
+
+	/* TT-RAM */
+
+	* (uint32_t *) 0x5a4 = __Bas_base;	/* ramtop TOS system variable */
+	* (uint32_t *) 0x5a8 = 0x1357bd13;	/* ramvalid TOS system variable */
+
+	/* init ACIA */
+	* (uint8_t *) 0xfffffc00 = 3;
+	asm("nop");
+	* (uint8_t *) 0xfffffc04 = 3;
+	asm("nop");
+	* (uint8_t *) 0xfffffc00 = 0x96;
+	asm("nop");
+	* (uint8_t *) 0xfffffa0f = 0;
+	asm("nop");
+	* (uint8_t *) 0xfffffa11 = 0;
+	asm("nop");
+
+	if (DIP_SWITCH & (1 << 7)) {
+		asm("move.w #0x0700,sr");
+	}
+	asm("jmp 0xe00030");
 }