I think it would be very helpful to write a bootloader and a debugger built in. I especially like Wouter's bootloader. I can't write it, but it would be nice for it to be able to look at any register contents in any bank, change any register, perhaps do a pseudo-breakpoint in main code then spit out W, status register, and others. This is how I debugged my HD64180, Z80, I8051 code before PICs came along. --Bob -- Note: To protect our network, attachments must be sent to attach@engineer.cotse.net . 1-520-850-1673 USA/Canada http:/beam.to/azengineer -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist