Well, the CCP is expected to be transient in CP/M 2.2. The top of the TPA is the start of the BDOS, the address of the JMP at location 0005h. The CCP...
If the program to debug is an RSX, or equivalent, then ZSID should relocate itself below your program, and you should still be able to debug it. You...
As you note, SYSGEN is normally customized by each vendor. Typically, the BIOS, BDOS, and CCP (and boot loader, if applicable) is relocated/assembled...
First exposure to computers was timeshare BASIC on a Honeywell 2040, followed by Wang 600 Programmable Calculator. Then on to CP/M et al. and the Heath/Zenith 89, and then a Kaypro 2X as the first computer I actually owned.