X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/blobdiff_plain/845cbdbdd011f875219542dc5916f390cd952514..a8b4c9642aee2d7b901e4a7cd19b170a40a361eb:/z180/config.inc

diff --git a/z180/config.inc b/z180/config.inc
index 034febe..d10b113 100644
--- a/z180/config.inc
+++ b/z180/config.inc
@@ -46,24 +46,36 @@ PRT_PRE		equ	20		;PRT prescaler
 ;-----------------------------------------------------
 ; MMU
 
-COMMON_SIZE	equ	16*1024		;Common Area size in bytes
+COMMON_SIZE	equ	4*1024		;Common Area size in bytes
 					;must be multiple of 4K
-
 if (COMMON_SIZE mod 1000h)
 	.printx COMMON_SIZE not multiple of 4K!
 	end	;stop assembly
 endif
+CMN_SIZE	equ	COMMON_SIZE/1000h		;4K units
+BNK_SIZE	equ	64/4 - CMN_SIZE			;bank size (4K units)
+BANKS		equ	(512/4 - CMN_SIZE)/BNK_SIZE	;max nr. of banks
+
+; Logical address space, CBAR values
 
-CSK	equ	COMMON_SIZE/1000h	;
-CA	equ	10h - CSK		;common area start
-BA	equ	0			;banked area start
+CA		equ	10h - CMN_SIZE		;common area start (64K - common size)
+BA		equ	0			;banked area start
+
+   if 0
 
 SYS$CBR		equ	0
 SYS$CBAR	equ	CA*16 + CA	;CBAR in system mode
 USR$CBAR	equ	CA*16 + BA	;CBAR in user mode (CP/M)
 
+   endif
+   if 1
+
+SYS$CBR		equ	BNK_SIZE
+SYS$CBAR	equ	CA*16 + CA	;CBAR in system mode
+USR$CBAR	equ	CA*16 + BA	;CBAR in user mode (CP/M)
+
+   endif
 
-BANKS		equ	18		;max nr. of banks
 
 ;-----------------------------------------------------
 
@@ -123,9 +135,9 @@ DDTZRSTVEC 	equ	030h		;DDTZ Restart vector (breakpoints)
 INIDONE		equ	03Fh		;CP/M skip hw init, if this address
 INIDONEVAL	equ	080h		;    is set to this value.
 
-mtx.fifo_len	equ	32		;Message transfer fifos
+mtx.fifo_len	equ	64		;Message transfer fifos
 mtx.fifo_id	equ	0		;    This *must* have #0
-mrx.fifo_len	equ	32
+mrx.fifo_len	equ	64
 mrx.fifo_id	equ	1
 
 ci.fifo_len	equ	32		;AVRCON Character I/O via AVR
@@ -170,7 +182,8 @@ mkbuf	macro	id,name,size
     name&.mask equ ;wrong size error
   else
     db id
-    ds 3
+    db size-1
+    ds 2
     name:: ds size
     name&.mask equ low (size-1)
     if size ne 0