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/* specplus2a.c: Spectrum +2A specific routines
Copyright (c) 1999-2004 Philip Kendall
$Id: specplus2a.c 4038 2009-06-24 14:25:23Z fredm $
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: philip-fuse@shadowmagic.org.uk
*/
#include <config.h>
#include <libspectrum.h>
#include "joystick.h"
#include "machine.h"
#include "machines.h"
#include "periph.h"
#include "printer.h"
#include "settings.h"
#include "spec128.h"
#include "spec48.h"
#include "specplus3.h"
#include "ula.h"
#include "if1.h"
static int specplus2a_reset( void );
static const periph_t peripherals[] = {
{ 0x0001, 0x0000, ula_read, ula_write },
{ 0x00e0, 0x0000, joystick_kempston_read, NULL },
{ 0xc002, 0xc000, ay_registerport_read, ay_registerport_write },
{ 0xc002, 0x8000, ay_registerport_read, ay_dataport_write },
{ 0xc002, 0x4000, NULL, spec128_memoryport_write },
{ 0xf002, 0x1000, NULL, specplus3_memoryport2_write },
{ 0xf002, 0x0000, printer_parallel_read, printer_parallel_write },
};
static const size_t peripherals_count =
sizeof( peripherals ) / sizeof( periph_t );
int
specplus2a_init( fuse_machine_info *machine )
{
machine->machine = LIBSPECTRUM_MACHINE_PLUS2A;
machine->id = "plus2a";
machine->reset = specplus2a_reset;
machine->timex = 0;
machine->ram.port_from_ula = specplus3_port_from_ula;
machine->ram.contend_delay = spectrum_contend_delay_76543210;
machine->ram.contend_delay_no_mreq = spectrum_contend_delay_none;
machine->unattached_port = spectrum_unattached_port_none;
machine->shutdown = NULL;
machine->memory_map = specplus3_memory_map;
return 0;
}
static int
specplus2a_reset( void )
{
int error;
error = machine_load_rom( 0, 0, settings_current.rom_plus2a_0,
settings_default.rom_plus2a_0, 0x4000 );
if( error ) return error;
error = machine_load_rom( 2, 1, settings_current.rom_plus2a_1,
settings_default.rom_plus2a_1, 0x4000 );
if( error ) return error;
error = machine_load_rom( 4, 2, settings_current.rom_plus2a_2,
settings_default.rom_plus2a_2, 0x4000 );
if( error ) return error;
error = machine_load_rom( 6, 3, settings_current.rom_plus2a_3,
settings_default.rom_plus2a_3, 0x4000 );
if( error ) return error;
error = specplus3_plus2a_common_reset();
if( error ) return error;
error = periph_setup( peripherals, peripherals_count );
if( error ) return error;
periph_setup_kempston( PERIPH_PRESENT_OPTIONAL );
periph_update();
spec48_common_display_setup();
return 0;
}
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