> Hi, > > With help from Johannes Berg, I've been working on reverse engineering > the firmware to try and understand the instruction format. Assuming we > can figure out all of the instructions, the end result is that we'll be > able to produce an open source firmware. > > So far I've built up a partial understanding of 4 instructions. I have > produced a home-grown disassembler and a lex+yacc-based assembler. In > the disassembled format, unrecognised code (i.e. instructions outside of > the 4 I understand) is stored as blobs of data for now. >
Have you thought about trying some well known instruction sets like Intel 8052 / Atmel AVR ? Even the chip makers that have their own instruction sets seem to make 8052 based chips as well. I think the Intel 8052 instruction set would be your best bet, since 8052 based micro controllers just seem the most widely used. Or did someone at Zydas actually tell you that their chips use some custom micro controller ? ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Zd1211-devs mailing list - http://zd1211.ath.cx/ Unsubscribe: https://lists.sourceforge.net/lists/listinfo/zd1211-devs
