INSTALLATION OF ZCPR2
               on APPLE ][

Version 1.0 W.F.McGee (613-828-9130) March 29, 1983
Version 1.1  "       modified to avoid inconsistency with
  unmodified BIOS, corrected bugs.
Version 1.2  "       modified for new CPM60

Purposeº tï aiä iî thå installatioî oæ ZCPR² oî Applå ]Û personaì �
microcomputer.

1. Customize ZCPRHDR.LIB

I made the following equate choices
 
CPRLOC    EQU  0D300H
BIOS	EQU	0FA00H
SUBON     EQU  TRUE
DRVPREFIX EQU  TRUE
DRVPFATT  EQU  1
USERON    EQU  TRUE
DIRON     EQU  TRUE
LTON      EQU  TRUE
GOON      EQU  TRUE
ERAON     EQU  TRUE
SAVEON    EQU  TRUE
RENON     EQU  TRUE
GETON     EQU  TRUE
JUMPON    EQU  TRUE
INTPATH   EQU  TRUE
IPATH     MACRO
          db   '$',0
          db   'A'-'@','$'
          db   'A'-'@',0
          db   0
          ENDM
ERAOK     EQU  TRUE
ERAV      EQU  FALSE
DUPRMPT   EQU  TRUE
MULTCMD   EQU  TRUE
CLBASE    EQU  0F500H   
BUFLEN    EQU  77H
WERA      EQU  FALSE
WREN      EQU  FALSE
WLT       EQU  FALSE
WGO       EQU  FALSE
WSAVE     EQU  FALSE
WGET      EQU  FALSE
WJUMP     EQU  FALSE
WDU       EQU  FALSE
WHEEL     EQU  FALSE
INTSTACK  EQU  FALSE
STKBASE   EQU  0F580H
EXTFCB    EQU  TRUE
FCBADR    EQU  0F600H
CMDRUN    EQU  TRUE

Š
NOTESº  Thió  seô  oæ equateó ió usinç thå Applå ]Û texô pagå  tï �
store the required ZCPR buffers. The allocation is as follows.

F400-F477     lower case driver (APPATCH2.MAC)
F500-F577     CLBASE
F580-F5F7     STKBASE
F600-F677     FCBADR
F680-F6F7     NDBASE
F780-F7F7     IOBASE

2. Patch the file ZCPR22.ASM as follows:

after the line
CMDLIN    EQU  CHRCNT+1

insert the following text:

BUFLEN0   EQU  77H
CHRCNT0   DB   6
CMDLIN0   DB   'ZCPRBT'
          DB   0
NXTCHR0   DW   CLBASE+4
          DB   BUFLEN0

and then should be an ELSE.

Further patch ZCPR22.ASM after the lines
CPR1:
	IF	MULTCMD
	XRA	A
	STA	CMDLIN0
	ENDIF
and after
CPR:
          LXI  SP,STACK

insert the lines
	  PUSH	B
          LXI  H,CHRCNT0
          LXI  D,CHRCNT
          LXI  B,8
          LDIR
          LXI  H,NXTCHR0
          LXI  D,NXTCHR
          LXI  B,3
          LDIR
	  POP	B

after which should appear IF NOT MULTCMD

Finally, in the subroutine SCANF2 replace
	DJNZ	SCANF
with
	DJNZ	SCANF
	JMP	AROUND
	DB	' '
AROUND:
SCANF3:
	The effect of this change will be
 to place a jump around location D74E
which is modified by BIOS.	
    
3. Assemble using MAC into the file A60ZCPR2.HEX

4. Patch this hex file into CPM60.COM using DDT as follows

DDT CPM60.COM

NEXT PC
2E00 0100

-H0F00,0D300
E200,3C00
-IA60ZCPR2.HEX
-R3C00
-G0

Š
A>SAVE 47 ZCPM60.COM

4®  Thå  prograí ZCPM60.COM wilì rewritå thå systeí trackó oæ á �
disk when it is run.    

5®  Assemblå thå filå ZCPRBT.ASÍ intï ZCPRBT.COÍ anä placå iô  oî �
thå  systeí  disk®  Thió initializeó thå system¬  anä  ió  calleä �
automatically when the disk is booted.

6®  Thå lasô stagå ió tï ruî thå prograí GENINÓ anä customizå thå �
utilitieó  foò  youò  ZCPR² system®  É finä  thaô  thå  followinç �
utilities are useful for the Apple

   CD
   COMPARE
   CRC
   DIFF
   DU4
   LD
   LDIRZ
   LRUNZ
   MKCHECK
   MCOPY
   MENU
   MKDIR
   PATH
   PROTECT
   PWD
   RENAME
   SUB
   XDIR
   ZEX

These also fill one Apple diskette (126k).