1 2#------------------------------------------------------------------------------ 3# $File: xilinx,v 1.4 2009/09/19 16:28:13 christos Exp $ 4# This is Aaron's attempt at a MAGIC file for Xilinx .bit files. 5# Xilinx-Magic@RevRagnarok.com 6# Got the info from FPGA-FAQ 0026 7# 8# First there is the sync header and its length 90 beshort 0x0009 10>2 belong =0x0ff00ff0 11>>&0 belong =0x0ff00ff0 12>>>&0 beshort =0x0000 13>>>>&0 pstring a Xilinx BIT data 14# Next is a Pascal-style string with the NCD name. We want to capture that. 15>>>>0x0F pstring x - from %s 16# It is followed by a NUL 17>>>>>&1 byte 0x00 18# And then 'b' 19>>>>>&2 string b 20# With the part number: 21#>>>>>&5 string 4v (Virtex4) 22#>>>>>&5 string 2v (Virtex II 23#>>>>>>&0 string !p \b) 24#>>>>>>&0 string p Pro) 25>>>>>&4 pstring x - for %s 26# And then NUL / 'c' / Build Data / NUL / 'd' / Date / NUL / 'e' / Data Length 27>>>>>>&1 byte 0x00 28>>>>>>&2 string c 29>>>>>>&4 pstring x - built %s 30>>>>>>>&1 byte 0x00 31>>>>>>>&2 string d 32>>>>>>>&4 pstring x \b(%s) 33>>>>>>>>&1 byte 0x00 34>>>>>>>>&2 string e 35>>>>>>>>&4 belong x - data length 0x%lx 36