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c64dtv.cpp
85 lines (61 loc) · 2.69 KB
/
c64dtv.cpp
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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/*************************************************************************************************************
Commodore 64 Direct-to-TV
It looks like a fat joystick.
Chips: All unmarked. According to Wikipedia an ASIC contains an entire
Commodore 64 (6510 CPU, VIC-II, SID, CIA, PLA) running at 32MHz. The
6510 CPU portion runs at 1MHz.
Crystals: 32.720 (X1), unmarked (X2).
*************************************************************************************************************/
#include "emu.h"
#include "screen.h"
namespace {
//**************************************************************************
// DRIVER STATE
//**************************************************************************
class c64dtv_state : public driver_device
{
public:
// constructor
c64dtv_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag) { }
uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
bitmap.fill(rgb_t::black(), cliprect);
return 0;
}
void c64dtv(machine_config &config);
};
//**************************************************************************
// INPUT PORTS
//**************************************************************************
static INPUT_PORTS_START( c64dtv )
INPUT_PORTS_END
//**************************************************************************
// MACHINE DRIVERS
//**************************************************************************
void c64dtv_state::c64dtv(machine_config &config)
{
// video hardware
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_screen_update(FUNC(c64dtv_state::screen_update));
screen.set_size(640,480);
screen.set_visarea_full();
screen.set_refresh_hz(30);
}
//**************************************************************************
// ROM DEFINITIONS
//**************************************************************************
// BASIC sits at 0xa000-0xc000, chargen-like chunks sit at 0x1000-0x2000, 0x9000-0xa000 and 0xd000-0xe000
// kernel sits at 0xe000
// from 0x10000 on there are the games
ROM_START( c64dtv )
ROM_REGION( 0x200000, "asic", 0 )
ROM_LOAD( "flash.u2", 0x000000, 0x200000, CRC(b820375a) SHA1(b9f88919e2bed825eb2b2cb605977d55971b423b) )
ROM_END
} // anonymous namespace
//**************************************************************************
// GAME DRIVERS
//**************************************************************************
CONS( 2005, c64dtv, 0, 0, c64dtv, c64dtv, c64dtv_state, empty_init, "The Toy:Lobster Company", "Commodore 64 Direct-to-TV (Version 2 050711) (PAL)", MACHINE_IS_SKELETON )