Here is the (long awaited?) source files for MYDOS 4.5.  They are a
4 part encoding of an ARC file containing MAC65 tokenized assembly
language source code.  Concatenate the parts, run through a UUDECODE,
deARC using Bob Puff's UNARC utility, then assembly (following the instructions
in the READ.ME file) using disk or cartridge based MAC65.  If you have
one of the early versions of the MAC65 cartridge one instruction in the
DOS code will be incorrectly generated (JMP 0 assembles to $FF:$00:$00)
but the backpatches from DUP will correct it -- don't worry, be happy, ...

MYDOS is a disk operating system built up as an enhanced version of Atari DOS
2.0 -- it supports most RAMdisks, hard disks, single, enhanced and double
density floppy disks, and it could be considered user friendly (at least it
does not require so much typing to change the unit number of the RAM disk
as it used to!).

Enjoy it,
Charles Marslett