/****************************************************************************
OS/A65 Version 2.0.0
Multitasking Operating System for 6502 Computers
Copyright (C) 1989-1998 Andre Fachat
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************/
/***************************************************************************/
/* These defines control the ROM build */
/* */
#define ROM
/* #define C64 */
/* These are necessary for C64 kernel **************************************/
#define NOMMU
#define NOSYSPORT
#undef CLK2MHZ /* we only have approx. 1 MHz ... */
#undef CMOSCPU /* ... and no CMOS cpu */
#define VIDPAGE 14
#define SHORTLINE /* prepare for 40 col screen */
#define RAMTEST
#define NOMIRRORMEM
#define OSA_CPU "6510"
#define OSA_ARCH "C64"
/* These are changeable ****************************************************/
#undef ANDRE /* my personal configuration... :-) */
#undef EMUSLIP /* my personal configuration... :-) */
#define ROMSTART $7800 /* where the ROM starts */
#define RAMSTART 1
#define RAMEND >ROMSTART /* The size of the RAM we allow to be used.
Size in pages (256 bytes). Must be below
ROMSTART */
#define MIN_MEM >ROMSTART /* minimum memory we need in system env. to
work ok, in pages */
/* if you have a 16550A UART with FIFO */
#undef UARTBASE $d600
#define ACIABASE $d600
/* #define ACIABASE $df00 */
#define UARTXTAL 4 /* xtal is 4 times 1.8324 MHz */
#define MEMINIVAL 0 /* Clear memory to 0 on boot */
#define STACKCOPY /* if defined, save stack area in memory
when context switching, otherwise divide
stack area and give each task a part.
It's faster without, but allows more
tasks with */
#define NMIDEV /* necessary for fast RS232 */
/*#define C64NEEDCIA1*/ /* disables reading CIA1 ICR in kernel -
needs to be done in device then, as
kernel enables timer irq!! (reading
it causes all flags to be reset!)
If you use the plain C64 9600 baud RS232
interface (ds3), this must not be defined! */
#undef PARALLEL /* for IEEE488 interface from Commodore
disables serial bus interface! */
#define C64_BGND_COL 0 /* console background color */
#define C64_TEXT_COL 13 /* console text color */
#define C64_BORDER_COL 13 /* console border color */
#define C64SWITCH 4 /* terminal switch key number (61= C=,
4= F1) */
/*#define C64NMIRESET*/ /* restore button becomes reset
(doesn't work with NMIDEV and the
plain C64 9600 baud RS232 interface) */
#define NEED_CHECKCHLD /* this is necessary if using "init" or
lib6502 */
#define NEED_GETINFO
#define NEED_SLOCK
#define NEED_RENICE
#define BOOTDRV "c" /* where are the boot files */
#define ROOTPATH "c:" /* where lsh chdirs into on boot */
#define WWWDRV BOOTDRV
#undef INETSTART /* start INET server from init - customization
below */
/***************************************************************************/
/* Better not change anything below */
/* */
#ifdef ANDRE /* C64 with parallel IEEE488, UART and booting from CS/A
computer at IEEE id 10, mapping its fsibm drive there */
#define PARALLEL
#define OLDHACK
#undef ACIABASE
#define UARTBASE $d600
#undef UARTXTAL
#define UARTXTAL 1
#undef BOOTDRV
#define BOOTDRV "e"
#undef WWWDRV
#define WWWDRV "c"
#endif /* ANDRE */
/***************************************************************************/
#ifdef EMUSLIP /* C64 emulator VICE with parallel IEEE488, ACIA emulation
and a nullmodem cable between /dev/modem (VICE) and
a slip line */
#undef PARALLEL
#undef OLDHACK
#undef UARTBASE
#undef ACIABASE
#undef UARTXTAL
#undef BOOTDRV
#undef WWWDRV
#endif /* EMUSLIP */
/***************************************************************************
*
* Here comes the ROM content
*/
#include "config.i65"
#include "kdefs.i65"
#include "fdefs.i65"
#include "c64def.i65"
#include "kernel.i65"
#define STDIOADDR $d000
.word $1800 /* load address */
.(
/************* ROM entries */
/************* devices */
#include "devices/c64dev.a65"
/************* init process */
#define INIT_VERBOSE
#define INIT_RESTART
#define INIT_MERGE
#define INIT_LIB6502
/* #define INIT_USE_STDLIB */
/* #define INIT_OUTDEV 2*/
#include "sysapps/init/init.a65"
/************* fsdev - converts devices into files */
#include "sysapps/fs/fsdev.a65"
/************* fsiec - IEEE488/IEC bus filesystem */
/* both, the parallel and serial iec bus use the same timer */
#define SEM_CIA2TB SEM_SERIEC
#undef SEM_PARIEC
#undef SEM_SERIEC
#define NOLOOP
#ifdef PARALLEL
#define FSIEC_DEVICE "devices/piec_c64.a65"
#else
#define FSIEC_DEVICE "devices/siec_c64.a65"
#endif
#include "sysapps/fs/fsiec.a65"
#undef FSIEC_DEVICE
#print *
/************* mon - OS/A 1 old style monitor/shell */
#define MON_SHEXE $c0 /* ROM executable flag */
#define MON_MONEXE 0 /* ROM executable flag */
#define MON_SHDEV 1 /* start on device 0 = video1 */
#define SHORTMON /* no assembler/disassembler */
#undef NOSH
#include "sysapps/mon/mon.a65"
/************* boot slipd from BOOTDRV, wwwdrv c and stderr to video3 */
#ifdef INETSTART
/* add autostart of lib6502 program 'slipd' */
.(
.word end_slipd
.byt PK_LIB+PK_AUTOEXEC ; is lib6502 program
.word 0 ; P_ADDR ignored
.byt 128 ; P_RAM
.byt 128 ; P_SHARED
.byt 0 ; P_PRIORITY
.byt 7,7 ; P_DEV
; wwwsrv drive is WWWDRV, login prg is "BOOTDRV:tlogin",
; debug output to 4th console
.byt BOOTDRV,":slipd", 0
.byt "a:video4", 0
.byt WWWDRV, ":", 0
.byt BOOTDRV, ":tlogin", 0
.byt 0 ; end of parameter list
end_slipd
.)
#endif
/************* boot lsh from BOOTDRV */
#ifdef BOOTDRV
/* add autostart of lib6502 program 'lsh' */
.(
.word end_auto
.byt PK_LIB+PK_AUTOEXEC+PK_RESTART ; is lib6502 program
.word 0 ; P_ADDR ignored
.byt 16 ; P_RAM
.byt 128 ; P_SHARED
.byt 0 ; P_PRIORITY
.byt 0,0 ; P_DEV
.byt BOOTDRV,":lsh",0,"-d",0,ROOTPATH, 0,0
end_auto
.)
#endif
/************* end of ROM executables */
.word -1
/************* lib6502 code */
#echo "lib6502 starts at"
#print *
/* lib6502 jmp table is below STDIOADDR */
#include "lib6502/lib6502.a65"
/************* fill not used area (I/O, screens) */
#if $d000-* < 0
#echo "Error after lib6502"
#print *
#endif
.dsb $d000-*,<-1
.dsb $2000, <-1 /* from d000 to f000 */
/************* Kernel */
#include "kernel\kernel.a65"
/************* Constants for lib6502 memory handling */
Memstart =$1600
Memend =ROMSTART
Zerostart =$70
.)
