changes made for installing z80dos:

changes in z80dhdr.lib:

base equ 0e400h

RTC     equ     true            ;Real time clock
BIOStim equ     BIOS+4EH

ResDsk  equ     1       ; CP/M default is disk A for resets
Options equ     00000000B               ; Enable public file and delay


Assembling and creating Z80DOS.SYS (first boot original CP/M):

Z80MR Z80DOS

MOVCPM 64 * *
SAVE 34 CPM64.SYS
DDT CPM64.SYS
 M1180,1185,100
 F1180,1F7F,0
 Iz80dos.hex
 R2580
 M100,105,1180
 G0
SAVE 34 Z80DOS.SYS

Transfer Z80DOS.SYS to MSDOS.

The making of SUPERDOS.SYS is analoguous.



changes in ZCPR.ASM:

CPRLOC  EQU     0E400H  ;FILL IN WITH BDOSLOC SUPPLIED VALUE
FENCE   EQU     ':'     ;SEP CHAR BETWEEN DIR FILES

insert the fellowing after the first command in routine PRIN1:

  ANI 7FH

This is because ZCPR outputs characters with bit 7 = 1 .

MAC ZCPR
DDT SUPERDOS.SYS
 Izcpr.hex
 R2580
 ; now you might overwrite dr's copyright message too
 G0
SAVE 34 Z80DOS.SYS