;****************************************************************
;*								*
;*  Z3BASE.LIB -- Base Addresses for ZCPR3 System		*
;*		  for the Kaypro II/IV and 2X/484		*
;*								*
;*	These addresses are used by the following System	*
;* Segments:							*
;*								*
;*	Segment		Function				*
;*	-------		--------				*
;*	Z80DOS		CP/M BDOS replacement		 	*
;*	BIOS		Customized BIOS				*
;*	ZCPR3		ZCPR3 Command Processor			*
;*	*.ENV		All Environment Descriptors		*
;*	*.FCP		All Flow Command Packages		*
;*	*.NDR		All Named Directory Definition Files	*
;*	*.RCP		All Resident Command Packages		*
;*								*
;* Memory Map of System:					*
;*								*
;*	Address Range	  Size	Function			*
;*	-------------	-------	--------			*
;*	            	256 b	Standard CP/M Buffers except	*
;*	       from 55K to 58 K	TPA	(full or not)		*
;*	            	   2  K	ZCPR3 Command Processor		*
;*	            	   3.5K	Z80DOS				*
;*	            	  ~1  K	CBIOSZ with Buffers		*
;*	           *	   2  K Resident Command Package	*
;*	optional   *	   0.5K Flow Command Package		*
;*	           *	256 b	Memory-Based Named Directory	*
;*	            	128 b	ZCPR3 Shell Stack		*
;*	            	 80 b	ZCPR3 Message Buffers		*
;*				Byte 0:  Error Flag (Z/NZ)	*
;*				Byte 1:  IF (8 Levels)		*
;*				Byte 2:  IF Active (8 Levels)	*
;*				Byte 3:  Z3 Cmd Status		*
;*					00B - Normal		*
;*					01B - Shell		*
;*					10B - Error		*
;*				Bytes 4&5: Error Address if 10B	*
;*				Byte 6: Program Error Code	*
;*				Byte 7: ZEX Message Byte	*
;*					00B - Normal		*
;*					01B - Z3 Prompt		*
;*					10B - Suspend Intercept	*
;*				Byte 8: ZEX Running Flag (0=No)	*
;*				Bytes 9-10: Address of Next	*
;*					Char for ZEX to Return	*
;*				Bytes 11-12: Address of First	*
;*					Char in ZEX Memory-	*
;*					Based File Buffer	*
;*				Byte 13: SH Control Byte	*
;*					Bit 0: Enable SHCMT	*
;*					Bit 1: Enable SHECHO	*
;*					Bit 7: Enable Shell	*
;*						Entry Wait	*
;*				Bytes 14-15: Shell Scratch	*
;*				Bytes 10H-2FH: Error Cmd	*
;*				Bytes 30H-39H: Registers	*
;*				Bytes 3AH-3FH: Reserved		*
;*				Bytes 40H-4FH: User-Defined	*
;*	            	 48 b	ZCPR3 External FCB		*
;*			 11 b   external path
;*			  1 b   wheel byte
;*	            	208 b	Multiple Command Line Buffer	*
;*	            	 48 b	ZCPR3 External Stack		*
;*	            	256 b	Environment Descriptors		*
;*				Bytes 00H-7FH:  Z3 Parameters	*
;*				Bytes 80H-FFH:  Z3 Terminal Cap	*
;*	            	 2 .2 K BIOS buffers			* 
;*								*
;****************************************************************

; the Kaypro II/IV series and the 2X/484 series can be equated as far
; ..as the ZCPR modification is concerned, as long as attention is paid
; ..to the addresses of the CCP, BDOS, and BIOS (and presuming that the
; ..BDOS is also replaced, in this case with C. Wilson's Z80DOS).
; ..While the II/IVs can probably squeeze another 256 bytes out of this, 
; ..there is some use in equating the two series (system segments can be 
; ..assembled to run in either).

false	equ	0
true	equ	not false

full	equ	true	; ZCPR has FCP, NDR, and RCP segments
			; ..false if only SYS.ENV and necessary buffers

z3rev	equ	33	; ZCPR3 revision number
vers	equ	10	; version of Z80DOS

  if full
msize	equ	60	; size of cpm system
ccp	equ	0d300h	; 256 bytes short of a full 60K system

  else	
msize	equ	63
ccp	equ	0e000h

  endif

base	equ	0

z3env	equ	0fa00h	; environment descriptor segment: this shall be the
			; ..first segment installable under the Kaypro system
			; ..scratch RAM
z3envs	equ	2	; size of environment descriptor in 128-byte blocks

extstk	equ	0f9d0h	; ZCPR3 external stack

z3cl	equ	0f900H	; ZCPR3 command line buffer
z3cls	equ	200	; size of command line buffer

z3whl	equ	0f8ffh	; wheel byte address

expath	equ	0f8f4h	; external path
expaths	eqU	5	; number of 2-byte Path Elements
			;  (path size = expaths*2 + 1)
extfcb	equ	0f8d0h	; ZCPR3 external fcb

z3msg	equ	0f880h	; ZCPR3 message buffer

shstk	equ	0f800h	; ZCPR3 shell stack
shstks	equ	4	; number of shsize-byte shell stack entries
shsize	equ	32	; size of a shell stack entry
			;   (stack size = shstks * shsize)
  if full

z3ndir	equ	0f700h	; ZCPR3 named directory area
z3ndirs	equ	14	; 14 18-byte Named Directory Elements permitted
			;   (ndir size = z3ndirs*18 + 1 for trailing 0)
fcp	equ	0f500h	; flow command package
fcps	equ	4	; 4 128-byte Blocks (0.5K bytes)

rcp	equ	0ed00h	; resident command package
rcps	equ	16	; 16 128-byte Blocks (2K bytes)

  else

z3ndir	equ	0
fcp	equ	0
rcp	equ	0
  
  endif			; if full

iop	equ	0	; redirectable I/O package
iops	equ	0	; 12 128-byte Blocks (1.5K bytes)

;*
;*  END of ZCPR3 BASE EQUATES
;*