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New systems marked not working
------------------------------ Esprit Systems 250C [Dirk Best, Bitsavers]
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Dirk Best
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240
src/mame/esprit/esp250c.cpp
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240
src/mame/esprit/esp250c.cpp
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// license: BSD-3-Clause
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// copyright-holders: Dirk Best
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/***************************************************************************
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Esprit Systems 250C
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16 color serial terminal
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Hardware:
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- Intel N80C188XL25
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- AMIC A290021 256k flash memory
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- 2x W24257AJ 32k SRAM
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- TERMTEK TKA-200 A410A0011 ASIC
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- 32 MHz XTAL, 50 MHz XTAL, XTAL labeled "7.3F5G"
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- Buzzer
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External:
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- PC/PS2 keyboard connector
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- 25-pin RS232 host port
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- 9-pin serial printer
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- Parallel printer
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- VGA monitor (48.4 kHz horizontal, 70 Hz vertical)
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TODO:
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- Almost everything (shows an initial screen)
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Notes:
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- Other models in this line: 350C (with Ethernet)
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- PCB labeled "TKP-635 VER:1.5"
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- 10x16 cell 800x416 in 80 column mode
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- 9x16 cell 1188x416 in 132 column mode
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***************************************************************************/
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#include "emu.h"
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#include "cpu/i86/i186.h"
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#include "emupal.h"
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#include "multibyte.h"
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#include "screen.h"
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namespace {
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class esp250c_state : public driver_device
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{
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public:
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esp250c_state(const machine_config &mconfig, device_type type, const char *tag) :
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driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_screen(*this, "screen"),
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m_palette(*this, "palette"),
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m_gfxdecode(*this, "gfxdecode"),
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m_vram(*this, "vram"),
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m_chargen(*this, "chargen")
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{ }
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void esp250c(machine_config &config);
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protected:
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virtual void machine_start() override;
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virtual void machine_reset() override;
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private:
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required_device<i80188_cpu_device> m_maincpu;
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required_device<screen_device> m_screen;
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required_device<palette_device> m_palette;
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required_device<gfxdecode_device> m_gfxdecode;
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required_shared_ptr<uint8_t> m_vram;
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required_shared_ptr<uint8_t> m_chargen;
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bool m_nmi_enable = false;
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void mem_map(address_map &map);
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void io_map(address_map &map);
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void vblank_w(int state);
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uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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void unk_f0_w(uint8_t data);
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};
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//**************************************************************************
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// ADDRESS MAPS
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//**************************************************************************
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void esp250c_state::mem_map(address_map &map)
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{
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map(0x00000, 0x0ffff).ram();
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map(0x10000, 0x1ffff).ram().share("vram");
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map(0x20000, 0x23fff).ram().share("chargen");
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map(0xc0000, 0xfffff).rom().region("maincpu", 0);
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}
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void esp250c_state::io_map(address_map &map)
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{
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map(0x00, 0x00).lr8(NAME([this] () { logerror("read 0x00\n"); return 0x10; }));
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map(0x11, 0x11).lr8(NAME([this] () { logerror("read 0x11\n"); return 0x09; }));
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map(0x19, 0x19).lr8(NAME([this] () { logerror("read 0x19\n"); return 0x09; }));
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map(0xf0, 0xf0).w(FUNC(esp250c_state::unk_f0_w));
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}
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//**************************************************************************
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// INPUT PORT DEFINITIONS
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//**************************************************************************
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static INPUT_PORTS_START( esp250c )
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INPUT_PORTS_END
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//**************************************************************************
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// VIDEO EMULATION
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//**************************************************************************
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void esp250c_state::vblank_w(int state)
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{
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// nmi needs a periodic source, might be vblank
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if (m_nmi_enable)
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m_maincpu->pulse_input_line(INPUT_LINE_NMI, attotime::zero);
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}
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uint32_t esp250c_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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{
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m_gfxdecode->gfx(0)->mark_all_dirty();
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const pen_t *const pen = m_palette->pens();
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for (unsigned y = 0; y < 26; y++)
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{
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uint32_t addr = get_u24le(&m_vram[y * 3]);
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for (unsigned x = 0; x < 80; x++)
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{
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uint8_t code = m_vram[addr++];
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for (int i = 0; i < 16; i++)
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{
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uint16_t data = m_chargen[(code << 5) + i];
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// fixed for now
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rgb_t fg = pen[7];
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rgb_t bg = pen[0];
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for (int p = 0; p < 10; p++)
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bitmap.pix(y * 16 + i, x * 10 + p) = BIT(data, 9 - p) ? fg : bg;
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}
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}
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}
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return 0;
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}
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static const gfx_layout char_layout =
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{
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8, 16,
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RGN_FRAC(1,1),
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1,
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{ 0 },
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{ 0, 1, 2, 3, 4, 5, 6, 7 },
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{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 },
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8 * 16
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};
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static GFXDECODE_START( chars )
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GFXDECODE_RAM("chargen", 0, char_layout, 0, 1)
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GFXDECODE_END
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//**************************************************************************
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// MACHINE EMULATION
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//**************************************************************************
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void esp250c_state::unk_f0_w(uint8_t data)
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{
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logerror("io 0xf0 = %02x\n", data);
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// maybe
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m_nmi_enable = bool(BIT(data, 3));
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}
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void esp250c_state::machine_start()
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{
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// register for save states
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save_item(NAME(m_nmi_enable));
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}
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void esp250c_state::machine_reset()
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{
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}
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//**************************************************************************
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// MACHINE DEFINTIONS
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//**************************************************************************
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void esp250c_state::esp250c(machine_config &config)
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{
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I80188(config, m_maincpu, 50_MHz_XTAL); // guess
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m_maincpu->set_addrmap(AS_PROGRAM, &esp250c_state::mem_map);
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m_maincpu->set_addrmap(AS_IO, &esp250c_state::io_map);
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SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
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m_screen->set_raw(50_MHz_XTAL, 1034, 0, 800, 690, 0, 416); // wrong
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m_screen->set_screen_update(FUNC(esp250c_state::screen_update));
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m_screen->screen_vblank().set(FUNC(esp250c_state::vblank_w));
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PALETTE(config, m_palette).set_entries(16);
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GFXDECODE(config, m_gfxdecode, m_palette, chars);
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}
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//**************************************************************************
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// ROM DEFINITIONS
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//**************************************************************************
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ROM_START( esp250c )
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ROM_REGION(0x40000, "maincpu", 0)
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ROM_LOAD("tk-635_v035.bin", 0x00000, 0x40000, CRC(8e907958) SHA1(e0d5d39656e460933aa4e7d9d0c1e16bef414f6d))
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// character data from 0x20000 to 0x2ffff
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// version at 0x30000 "V0.35 13MAY"
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ROM_END
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} // anonymous namespace
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//**************************************************************************
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// SYSTEM DRIVERS
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//**************************************************************************
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// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
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COMP( 2005, esp250c, 0, 0, esp250c, esp250c, esp250c_state, empty_init, "Esprit Systems", "250C", MACHINE_NOT_WORKING | MACHINE_NO_SOUND | MACHINE_SUPPORTS_SAVE )
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@ -17759,6 +17759,9 @@ e9161 //
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@source:ericsson/eispc.cpp
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epc // 1984 Ericsson PC
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@source:esprit/esp250c.cpp
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esp250c // 2005 Esprit Systems
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@source:esprit/executive10.cpp
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exe10102 // 1983 Esprit Systems
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