P112 ROM Monitor
The P112 board has a 32K flash ROM chip that contains the startup initialization code and a small monitor-debugger.
There are two known versions of the ROM code: the original one from Dave Brooks and an enhanced version from Harold Bower. The last one adds support for more floppy formats, SCSI and IDE interfaces, includes commands for setting and displaying the Time-of-Day, and saves the configuration parameters in the Non-Volatile RAM.
I use the H. Bower's version of the ROM monitor since it is more versatlie. I've made the following modifications:
Recently, an updated ROM (version 5.0) has been made available by Terry Gulczynski, which implements hardware flow control for the main serial port and a new debugger command. I've merged both my changes and Terry changes into a new version (5.1). You can find it in the download area, together with older versions. All packages include sources and ROM images in Intel HEX format. Version 4.3 and up come with Tiny BASIC in a separate HEX file.
Last updated: 8-Feb-2006.