#	$OpenBSD: xilinx,v 1.2 2009/04/26 14:17:45 chl Exp $

#------------------------------------------------------------------------------
# This is Aaron's attempt at a MAGIC file for Xilinx .bit files.
# Xilinx-Magic@RevRagnarok.com
# Got the info from FPGA-FAQ 0026
#
# First there is the sync header and its length
0	beshort 0x0009
>2 	belong	=0x0ff00ff0
>>&0	belong  =0x0ff00ff0
>>>&0	beshort =0x0000	
>>>>&0	pstring	a	Xilinx BIT data
# Next is a Pascal-style string with the NCD name. We want to capture that.
>>>>0x0F	pstring	x	- from %s
# It is followed by a NUL
>>>>>&1	byte	0x00
# And then 'b'
>>>>>&2	string b
# With the part number:
#>>>>>&5 string	4v	(Virtex4)
#>>>>>&5 string  2v	(Virtex II
#>>>>>>&0	string	!p	\b)
#>>>>>>&0	string	p	Pro)
>>>>>&4	pstring x	- for %s
# And then NUL / 'c' / Build Data / NUL / 'd' / Date / NUL / 'e' / Data Length
>>>>>>&1	byte	0x00
>>>>>>&2	string	c
>>>>>>&4	pstring	x	- built %s
>>>>>>>&1	byte	0x00
>>>>>>>&2	string	d
>>>>>>>&4	pstring	x	\b(%s)
>>>>>>>>&1	byte	0x00
>>>>>>>>&2	string	e
>>>>>>>>&4	belong	x	- data length 0x%lx