HRTboot.s

***************************
***	HRTmon Boot	***
***************************

	XDEF _BootBlock

	incdir	includes:
	include "exec/libraries.i"

;VBR must be 0 !

s
_BootBlock
start		dc.b "DOS",0
		dc.l 0
address		dc.l 0			;8 install address

		bra.b	next

		dc.b "HRT!"

next		movem.l	d0-d7/a0-a5,-(a7)
		lea.l	start(pc),a5
		move.l	address(pc),a3		;install address
		lea.l	data(pc),a0
		lea.l	$70000,a2
		move.w	#$100-1,d0
copy_boot	move.l	(a0)+,(a2)+
		dbf	d0,copy_boot
		cmp.w	#37,LIB_VERSION(a6)
		blt.b	.noccu
		jsr	-636(a6)		;CacheClearU
.noccu		jmp	$70000

data		move.l	a1,a4
		move.w	#2,28(a1)
		move.l	#512*300,36(a1)
		move.l	#512*2,44(a1)
		move.l	a3,40(a1)
		jsr	-456(a6)

		cmp.w	#37,LIB_VERSION(a6)
		blt.b	.noccu
		jsr	-636(a6)		;CacheClearU
.noccu
		move.l	20(a3),d0		;read Size to Alloc
		beq.b	.noABS
		move.l	a3,a1
		jsr	-204(a6)		;AllocABS
		tst.l	d0
		bne.b	.noABS
		clr.l	20(a3)			;AllocAbs failed
.noABS
		jsr	8(a3)			;init HRTmon
		lea.l	12(a3),a0
		move.l	a0,$70004		;save enter address

		lea.l	$dff006,a1
		lea.l	$dff180,a2
wait		move.w	(a1),(a2)
		btst	#6,$bfe001
		bne.s	wait

		move.l	a4,a1
		move.w	#2,28(a1)
		move.l	a5,40(a1)
		move.l	#$400,36(a1)
		clr.l	44(a1)
		jsr	-456(a6)		;Read New Boot-Block

		cmp.w	#37,LIB_VERSION(a6)
		blt.b	.noccu
		jsr	-636(a6)		;CacheClearU
.noccu
		lea.l	12(a5),a6
		movem.l	(a7)+,d0-d7/a0-a5
		move.l	a6,$70000
		move.l	$80.w,d0
		lea.l	super(pc),a6
		move.l	a6,$80.w
		trap	#0
super		move.l	d0,$80.w
		move.l	$70000,2(a7)		;return address from monitor
		move.l	$4.w,a6
		move.l	$70004,-(a7)
		rts				;jmp HRTmon

		dc.b " HRTmon2.0 Boot-Disk                    "
		dc.b "  When the screen flashes enter the disk you want"
		dc.b " to debug and press your left-mouse button. "
		dc.b "                      "

		dc.b "              THIS DISK WAS GENERATED BY HRTmonPrefs             "

end2
		dcb.b 2*512-(end2-start),0
end