/
ibm3153.cpp
140 lines (109 loc) · 3.48 KB
/
ibm3153.cpp
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// license:BSD-3-Clause
// copyright-holders:Robbbert
/***************************************************************************
IBM 3153 Terminal.
2016-05-04 Skeleton driver.
A green-screen terminal with a beeper.
Chip complement:
U1 K6T0808C10-DB70 (32k static ram)
U2 D-80C32-16 (cpu)
U3 DM74LS373N
U5 LM339N
U6 DM74LS125AN
U7 K6T0808C10-DB70 (ram)
U8 K6T0808C10-DB70 (ram)
U9 598-0013040 6491 3.19 (boot rom)
U10 DS1488N
U11 74LS377N
U12 DS1489AN
U13 LSI VICTOR 006-9802760 REV B WDB36003 Y9936 (video processor)
U14 74F00PC
U16 DM74LS125AN
U17 DS1488N
U18 DS1489AN
U25 SN74F04N
U100 74F07N
Crystals:
Y1 16.000 MHz
Y2 65.089 MHz
Y3 44.976 MHz
ToDo:
- Everything!
****************************************************************************/
#include "emu.h"
#include "cpu/mcs51/mcs51.h"
#include "emupal.h"
#include "screen.h"
namespace {
class ibm3153_state : public driver_device
{
public:
ibm3153_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_p_chargen(*this, "chargen")
{ }
void ibm3153(machine_config &config);
private:
virtual void machine_reset() override;
void ibm3153_palette(palette_device &palette) const;
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
void io_map(address_map &map);
void mem_map(address_map &map);
required_device<cpu_device> m_maincpu;
required_region_ptr<u8> m_p_chargen;
};
void ibm3153_state::mem_map(address_map &map)
{
map.unmap_value_high();
map(0x00000, 0x0ffff).rom().region("user1", 0);
}
void ibm3153_state::io_map(address_map &map)
{
map(0x0000, 0xffff).ram();
//map.unmap_value_high();
//map.global_mask(0xff);
}
/* Input ports */
static INPUT_PORTS_START( ibm3153 )
INPUT_PORTS_END
uint32_t ibm3153_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
return 0;
}
void ibm3153_state::ibm3153_palette(palette_device &palette) const
{
palette.set_pen_color(0, 0, 0, 0); // Black
palette.set_pen_color(1, 0, 255, 0); // Full
palette.set_pen_color(2, 0, 128, 0); // Dimmed
}
void ibm3153_state::machine_reset()
{
}
void ibm3153_state::ibm3153(machine_config &config)
{
/* basic machine hardware */
I80C32(config, m_maincpu, XTAL(16'000'000)); // no idea of clock
m_maincpu->set_addrmap(AS_PROGRAM, &ibm3153_state::mem_map);
m_maincpu->set_addrmap(AS_IO, &ibm3153_state::io_map);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(60);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500)); /* not accurate */
screen.set_screen_update(FUNC(ibm3153_state::screen_update));
screen.set_size(640, 240);
screen.set_visarea(0, 639, 0, 239);
screen.set_palette("palette");
PALETTE(config, "palette", FUNC(ibm3153_state::ibm3153_palette), 3);
}
/* ROM definition */
ROM_START( ibm3153 )
ROM_REGION( 0x40000, "user1", 0 )
ROM_LOAD("598-0013040_6491_3.19.u9", 0x0000, 0x040000, CRC(7092d690) SHA1(a23a5bd5eae90e9b31fa32ef4be1258612eaaa0a) )
ROM_REGION( 0x2000, "chargen", 0 )
ROM_LOAD( "char.bin", 0x0000, 0x2000, NO_DUMP ) // probably inside the video processor
ROM_END
} // anonymous namespace
/* Driver */
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1999?, ibm3153, 0, 0, ibm3153, ibm3153, ibm3153_state, empty_init, "IBM", "IBM 3153 Terminal", MACHINE_IS_SKELETON)