RunCPM | RunCPM is a multi-platform , portable , Z80 CP/M 2.2 emulator

Preparing the RunCPM folder : Create a folder containing both the RunCPM executable and the CCP binaries for the system. CCP Binaries for 64K and 60K are provided. If using a SD card, RunCPM and its CCPs need to be on the SD card's root folder. The 64K version CCPs will provide the maximum amount of memory possible to CP/M applications, but its addressing ranges are unrealistic in terms of emulating a real CP/M 2.2 computer. The 60K version CCPs will provide a more realistic addressing space, by keeping the CCP entry point on the same loading address it would be on a physical CP/M computer. Other amounts of memory can be used, but this would require rebuilding the CCP binaries (sources available on disk A.ZIP). The CCP binaries are named with their file name extensions matching the amount of memory they run on, so for example, DRI's CCP runnin on 60K memory would be named CCP-DR.60K. RunCPM looks for the file accordingly, depending on the amount of memory selected when it is built. IMPORTANT NOTE - Starting on version 3.4, regardless of the amount of memory allocated to the CP/M system, RunCPM will still allocate 64K of RAM on the host so the BIOS is always at the same starting position. This favors the porting of even more different CCP codes to RunCPM. This also requires that, starting on version 3.4, new copies of the master disk A.ZIP, ZCPR2 CCP and ZCPR3 CCP (all provided here) are used. Preparing the CP/M virtual drives : VERY IMPORTANT NOTE - Starting on RunCPM version 3.7 user areas are now mandatory. The support of non-user-area disk folders has been dropped between versions 3.5 and 3.6, so if you are running on a version up to 3.5, please consider moving to 3.7 or higher but not before updating your disk folders structure to match the support of user areas. RunCPM emulates the CP/M disks and user areas by means of subfolders under the RunCPM executable location, to prepare a folder or SD card for running RunCPM use the following procedures: Create subfolders under where the RunCPM executable is located and name them "A", "B", "C" and so on, for each disk drive you intend to use, each one of these folders will be one disk drive, and under folder "A" create a subfolder named "0". This is the user area 0 of disk A:, extract the contents of A.ZIP package into this "0" subfolder. Switching to another user area inside CP/M will automatically create the respective user area subfolders, "1", "2", "3" ... as they are selected. Subfolders for the user areas 10 to 15 are created as letters "A" to "F". All the letters for folders/subfolders and file names should be kept in uppercase, to avoid any issues of case-sensitive filesystems compatibility. CP/M only supported 16 disk drives: A: to P:, so creating other letters above P won't work, same goes for user areas above 15 (F).
CCP-DR - Is the original CCP from Digital Research.
CCP-CCPZ - Is the Z80 CCP from RLC and others.
CCP-ZCP2 - Is the original ZCPR2 CCP modification.
CCP-ZCP3 - Is the original ZCPR3 CCP modification.
CCP-Z80 - Is the Z80CCP CCP modification, also from RLC and others.