;-----------------------------------------------------
; CPU and BANKING types


CPU_Z180	equ	1		; 0 = Z80, else Z180
ROMSYS		equ	0

AVRCLK		equ	18432		;[KHz]

	if CPU_Z180

;-----------------------------------------------------
FOSC		equ	AVRCLK/2	;Oscillator frequency [KHz]
PHI		equ	FOSC*2		;CPU frequency (clock doubler enabled)

;-----------------------------------------------------
; Programmable Reload Timer (PRT)

PRT_PRE		equ	20		;PRT prescaler

; Reload value for 10 ms Int. (0.1KHz):
; tc10ms = phi/prescale/0.1KHz  = phi / (prescale/10)

PRT_TC10MS	equ	PHI / (PRT_PRE/10)

;-----------------------------------------------------
; MMU

SYS$CBAR	equ	0C8h
USR$CBAR	equ	0F0h


BANKS		equ	18		;max nr. of banks

;-----------------------------------------------------

CREFSH		equ	0		;Refresh rate register (disable refresh)
CWAITIO		equ	3 shl IWI0	;Max I/O Wait States, 0 Memory Wait States

	else	; Z80

PHI		equ	AVRCLK/5	;CPU frequency [KHz]
BAUDCLCK	equ	AVRCLK/10	;Baudrate clock [KHz]
;BDCLK16		equ

SIOAD	EQU	0bch
SIOAC	EQU	0bdh
SIOBD	EQU	0beh
SIOBC	EQU	0bfh

CTC0	EQU	0f4h
CTC1	EQU	0f5h
CTC2	EQU	0f6h
CTC3	EQU	0f7h

;
; Init Serial I/O for console input and output (SIO-A)
;
; Baudrate clock: 1843200 Hz (Bus connector pin A17)
;
; Baudrate   Divider	SIO	CTC
; ---------------------------------
; 115200	  16	 16	  1
;  57600	  32	 16	  2
;  38400	  48	 16	  3
;  19200	  96	 16	  6
;   9600	 192	 16	 12
;   4800	 384	 16	 24
;   2400	 768	 16	 48
;   1200	1536	 16	 96
;    600	3072	 16	192
;    300	6144	 64	 92

	endif	; CPU_Z180

	if	ROMSYS
c$rom		equ	0a5h
ROM_EN		equ	0C0h
ROM_DIS		equ	ROMEN+1
	if CPU_Z180
CWAITROM 	equ	2 shl MWI0
	endif
	endif


DRSTNUM 	equ	30h		;DDTZ Restart vector (breakpoints)


mrx.fifo_len	equ	256
mtx.fifo_len	equ	256

ci.fifo_len	equ	128
co.fifo_len	equ	256

s1.rx_len	equ	256		;Serial 1 (ASCI1) buffers
s1.tx_len	equ	256		;

AVRINT5		equ	4Fh
AVRINT6		equ	5Fh
;PMSG		equ	80h

;-----------------------------------------------------
; Definition of (locical) top 2 memory pages

sysram_start	equ	0FE00h
stacksize	equ	80

isvsw_loc	equ	0FEE0h

ivtab		equ	0ffc0h		;int vector table
iv2tab		equ	ivtab + 2*9



;-----------------------------------------------------


o.mask		equ	-3
o.in_idx	equ	-2
o.out_idx	equ	-1

	.lall

mkbuf	macro	name,size
  if ((size & (size-1)) ne 0) or (size gt 256)
    .printx Error: buffer ^size must be power of 2 and in range 0..256!
    name&.mask equ ;wrong size error
  else
    ds 3
    name:: ds size
    name&.mask equ low (size-1)
    if size ne 0
      name&.end equ $-1
      name&.len equ size
    endif
  endif
endm

;-----------------------------------------------------

inidat	macro
	cseg
??ps.a	defl	$
	endm

inidate	macro
??ps.len defl	$ - ??ps.a
	dseg
	ds	??ps.len
	endm