Bring up CP/M 3 on your CP/M 2 BIOS: This is a file of source code for CP/M 3 BIOS's that will help you bring up CP/M 3 with your existing CP/M 2.2 BIOS. There are no DOC files, but the ASM files are heavily commented. This should be a good resource to aid in bringing up CP/M 3 for the first time. 