SPECIAL NOTE: 86—DOS is not related to the popular CP/M operating system of Digital Research. Disk directory formatting and space allocation are completely different and incompatible. 86—DOS does, however, provide a utility called RDCPM which will transfer files from CP/M disks to 86—DOS disks. Further, operating system calls and calling conventions have been provided which make possible automatic translation of Z80 programs written for CP/M into 8086 programs that run under 86

CP/M of

86-DOS Instruction Manual (patersontech.com) 86-DOS provides the tools needed to develop programs for the 8086, as well as a hardware-independent environment in which to run these programs. It is a very modular system. At its core is the disk file manager and I/O device handler, and everything else is considered a “user program”. This allows the system to be easily trailored to any custom requirements.