Recompiling MP/M 2 from the sources
The archive for Z80SIM with disk images and scripts to mount disks can be downloaded here. Unpack the archive under ~/z80pack-x.y/cpmsim with tar xzvf mpmsrc.tgz.
Drives A: and B: contain CP/M 2 and the tools for building the binaries. Drive C: and D: are empty and used as scratch and build target. Drive I: contains the MP/M 2 sources and build scripts.
Instructions for compiling:
Make sure that drives C, D and I are empty, then run mpmsrc to mount and format disks.
The kernel, loader and system generation tool are build with:
submit i:bdos submit i:bnkbdos (***) submit i:xdos1 submit i:xdos2 submit i:bios submit i:mpmldr submit i:gensys(***) The bdos submit script build a bnkbdos.spr module already, which is release 2.0. The bnkbdos script will build release 2.1, skip this step if you want 2.0.
To compile the utilities run:
submit i:sdir submit i:asm submit i:ddt submit i:pip submit i:ed submit i:prla1 submit i:prla2 submit i:prla3 submit i:mpmstat submit i:spool submit i:abort submit i:sched submit i:load submit i:genhex submit i:genmod submit i:dump submit i:prlb1 submit i:prlb2 submit i:prlb3 submit i:prlb4Everything needed to build the MP/M kernel now is on drive D. A pre-configured and runnable MP/M kernel is build on drive C: with:
submit i:buildThe gensys program won't include the system resident modules in automatic mode, if you want them run manually again and copy MPM.SYS to C. To make the disks bootable put a CP/M 2 onto the system tracks of drive C: with the sysgen program from the CP/M 2 disk. Then place C: in A: and D: in B: and boot CP/M 2 with cpmsim -h. Run mpmldr to boot MP/M.
One also could write the boot loader and mpmldr onto the system tracks of a disk, to boot into MP/M directly. The submit script i:boot.sub can do this with the CP/M 2 sysgen program. This is explained in great detail in the instructions for building CP/M 3.