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(nw) homelab: finished with this for now.

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This commit is contained in:
Robbbert 2020-06-25 14:11:21 +10:00
parent 95d7d921bb
commit c9c6a26f0e
2 changed files with 87 additions and 71 deletions
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152
src/mame/drivers/homelab.cpp
View File

@ -16,6 +16,8 @@
- homelab2 - cassette to fix.
Note that rom code 0x40-48 is meaningless garbage,
had to patch to stop it crashing. Need a new dump.
- The speaker code is wrong, but it's the only way to
get any sound. Needs to be looked at again.
- homelab3/4 - Need a dump of the TM188 prom.
cassette to fix.
up to 64k ram can be fitted. schematic only shows 16k.
@ -35,9 +37,9 @@ MB7051 - fuse programmed prom.
#include "cpu/z80/z80.h"
#include "imagedev/cassette.h"
#include "imagedev/snapquik.h"
#include "sound/dac.h"
#include "sound/mea8000.h"
#include "sound/volt_reg.h"
#include "sound/spkrdev.h"
#include "machine/timer.h"
#include "emupal.h"
#include "screen.h"
#include "speaker.h"
@ -51,7 +53,7 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_p_chargen(*this, "chargen")
, m_dac(*this, "dac")
, m_speaker(*this, "speaker")
, m_cass(*this, "cassette")
, m_io_keyboard(*this, "X%d", 0)
{ }
@ -64,7 +66,7 @@ protected:
u8 m_cols;
required_device<cpu_device> m_maincpu;
required_region_ptr<u8> m_p_chargen;
required_device<dac_bit_interface> m_dac;
required_device<speaker_sound_device> m_speaker;
required_device<cassette_image_device> m_cass;
required_ioport_array<16> m_io_keyboard;
};
@ -82,10 +84,13 @@ private:
void machine_start() override;
INTERRUPT_GEN_MEMBER(homelab_frame);
void homelab2_mem(address_map &map);
u8 key_r(offs_t offset);
void cass_w(offs_t offset, u8 data);
u8 cass2_r();
bool m_nmi;
bool m_spr_bit;
u8 mem3800_r();
u8 mem3a00_r(offs_t);
void mem3c00_w(offs_t, u8);
void mem3e00_w(offs_t, u8);
};
class homelab3_state : public homelab_state
@ -120,42 +125,43 @@ INTERRUPT_GEN_MEMBER(homelab2_state::homelab_frame)
m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
}
u8 homelab2_state::key_r(offs_t offset) // offset 27F-2FE
u8 homelab2_state::mem3800_r()
{
if (offset == 0x38) // 0x3838
{
m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
return 0;
}
return m_io_keyboard[15]->read(); // reset key
}
u8 homelab2_state::mem3a00_r(offs_t offset)
{
u8 i,data = 0xff;
for (i=0; i<8; i++)
{
if (!BIT(offset, i))
{
data &= m_io_keyboard[i]->read();
}
}
return data;
}
u8 homelab2_state::cass2_r()
void homelab2_state::mem3c00_w(offs_t offset, u8 data)
{
return (m_cass->input() > 0.03) ? 0xff : 0;
m_spr_bit ^= 1;
m_speaker->level_w(m_spr_bit? -1.0 : +1.0);
m_cass->output(m_spr_bit ? -1.0 : +1.0);
}
void homelab2_state::cass_w(offs_t offset, u8 data)
void homelab2_state::mem3e00_w(offs_t offset, u8 data)
{
if (offset == 0x73f) // 0x3f3f
if (BIT(offset, 8))
{
m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
m_nmi = true;
}
else
if (offset == 0x63e) // 0x3e3e
m_nmi = false;
else
if (offset == 0x400) // 0x3c00
m_cass->output(BIT(data, 0) ? -1.0 : +1.0); // FIXME
}
u8 homelab2_state::cass2_r()
{
return (m_cass->input() > 0.03) ? 0x37 : 0;
}
void homelab3_state::machine_reset()
@ -191,21 +197,20 @@ u8 homelab3_state::exxx_r(offs_t offset)
else
if (offset == 0x80)
{
m_dac->write(0);
m_speaker->level_w(0);
m_cass->output(-1.0);
}
else
if (offset == 0x02)
{
m_dac->write(1);
m_speaker->level_w(1);
m_cass->output(+1.0);
}
u8 data = 0xff;
if (offset < 0x10)
{
data = m_io_keyboard[offset]->read();
}
return data;
}
@ -220,10 +225,13 @@ void homelab2_state::homelab2_mem(address_map &map)
map(0x2000, 0x27ff).rom(); // ROM 5
map(0x2800, 0x2fff).rom(); // ROM 6
map(0x3000, 0x37ff).rom(); // Empty
map(0x3800, 0x3fff).rw(FUNC(homelab2_state::key_r), FUNC(homelab2_state::cass_w));
map(0x3800, 0x39ff).r(FUNC(homelab2_state::mem3800_r));
map(0x3a00, 0x3bff).r(FUNC(homelab2_state::mem3a00_r));
map(0x3c00, 0x3dff).w(FUNC(homelab2_state::mem3c00_w));
map(0x3e00, 0x3fff).w(FUNC(homelab2_state::mem3e00_w));
map(0x4000, 0x7fff).ram();
map(0xc000, 0xc3ff).lr8(NAME([this] (offs_t offset) { return m_vram[offset]; })).lw8(NAME([this] (offs_t offset, u8 data) { m_vram[offset]=data; }));
map(0xe000, 0xe0ff).r(FUNC(homelab2_state::cass2_r));
map(0xc000, 0xc3ff).mirror(0xc00).lr8(NAME([this] (offs_t offset) { return m_vram[offset]; })).lw8(NAME([this] (offs_t offset, u8 data) { m_vram[offset]=data; }));
map(0xe000, 0xffff).r(FUNC(homelab2_state::cass2_r));
}
void homelab3_state::homelab3_mem(address_map &map)
@ -262,7 +270,7 @@ void homelab3_state::brailab4_io(address_map &map)
/* Input ports */
static INPUT_PORTS_START( homelab2 )
PORT_START("X0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) //PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0xfc, IP_ACTIVE_LOW, IPT_UNUSED)
@ -351,7 +359,8 @@ static INPUT_PORTS_START( homelab2 )
PORT_START("X14")
PORT_BIT(0xFF, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X15")
PORT_BIT(0xFF, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Reset") PORT_CODE(KEYCODE_F3)
PORT_BIT(0xFE, IP_ACTIVE_HIGH, IPT_UNUSED)
INPUT_PORTS_END
static INPUT_PORTS_START( homelab3 ) // F4 to F8 are foreign characters
@ -371,7 +380,7 @@ static INPUT_PORTS_START( homelab3 ) // F4 to F8 are foreign characters
PORT_START("X2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_CUSTOM) PORT_VBLANK("screen")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ALT") PORT_CODE(KEYCODE_CAPSLOCK)
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
@ -484,7 +493,7 @@ static INPUT_PORTS_START( brailab4 ) // F4 to F8 are foreign characters
PORT_START("X2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_CUSTOM) PORT_VBLANK("screen")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ALT") PORT_CODE(KEYCODE_CAPSLOCK)
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
@ -583,6 +592,7 @@ INPUT_PORTS_END
void homelab2_state::machine_start()
{
save_item(NAME(m_nmi));
save_item(NAME(m_spr_bit));
save_item(NAME(m_rows));
save_item(NAME(m_cols));
m_vram = make_unique_clear<u8[]>(0x800);
@ -765,13 +775,11 @@ void homelab2_state::homelab2(machine_config &config)
PALETTE(config, "palette", palette_device::MONOCHROME);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.5);
voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
SPEAKER(config, "mono").front_center();
SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50);
CASSETTE(config, m_cass);
m_cass->add_route(ALL_OUTPUTS, "speaker", 0.05);
m_cass->add_route(ALL_OUTPUTS, "mono", 0.05);
QUICKLOAD(config, "quickload", "htp", attotime::from_seconds(2)).set_load_callback(FUNC(homelab2_state::quickload_cb));
}
@ -796,13 +804,12 @@ void homelab3_state::homelab3(machine_config &config)
PALETTE(config, "palette", palette_device::MONOCHROME);
/* sound hardware */
SPEAKER(config, "speaker").front_center();
DAC_1BIT(config, m_dac, 0).add_route(ALL_OUTPUTS, "speaker", 0.5);
voltage_regulator_device &vref(VOLTAGE_REGULATOR(config, "vref", 0));
vref.add_route(0, "dac", 1.0, DAC_VREF_POS_INPUT);
SPEAKER(config, "mono").front_center();
SPEAKER_SOUND(config, m_speaker).add_route(ALL_OUTPUTS, "mono", 0.50);
CASSETTE(config, m_cass);
m_cass->add_route(ALL_OUTPUTS, "speaker", 0.05);
m_cass->add_route(ALL_OUTPUTS, "mono", 0.05);
QUICKLOAD(config, "quickload", "htp", attotime::from_seconds(2)).set_load_callback(FUNC(homelab3_state::quickload_cb));
}
@ -811,7 +818,7 @@ void homelab3_state::brailab4(machine_config &config)
homelab3(config);
m_maincpu->set_addrmap(AS_PROGRAM, &homelab3_state::brailab4_mem);
m_maincpu->set_addrmap(AS_IO, &homelab3_state::brailab4_io);
MEA8000(config, "mea8000", 3840000).add_route(ALL_OUTPUTS, "speaker", 1.0);
MEA8000(config, "mea8000", 3840000).add_route(ALL_OUTPUTS, "mono", 1.0);
}
@ -819,52 +826,61 @@ void homelab3_state::brailab4(machine_config &config)
ROM_START( homelab2 )
ROM_REGION( 0x3800, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "hl2_1.rom", 0x0000, 0x0800, BAD_DUMP CRC(205365f7) SHA1(da93b65befd83513dc762663b234227ba804124d))
ROM_LOAD( "hl2_2.rom", 0x0800, 0x0800, CRC(696af3c1) SHA1(b53bc6ae2b75975618fc90e7181fa5d21409fce1))
ROM_LOAD( "hl2_3.rom", 0x1000, 0x0800, CRC(69e57e8c) SHA1(e98510abb715dbf513e1b29fb6b09ab54e9483b7))
ROM_LOAD( "hl2_4.rom", 0x1800, 0x0800, CRC(97cbbe74) SHA1(34f0bad41302b059322018abc3d1c2336ecfbea8))
ROM_LOAD( "hl2_m.rom", 0x2000, 0x0800, CRC(10040235) SHA1(e121dfb97cc8ea99193a9396a9f7af08585e0ff0) )
ROM_LOAD( "hl2_1.ic2", 0x0000, 0x0800, BAD_DUMP CRC(205365f7) SHA1(da93b65befd83513dc762663b234227ba804124d))
ROM_LOAD( "hl2_2.ic3", 0x0800, 0x0800, CRC(696af3c1) SHA1(b53bc6ae2b75975618fc90e7181fa5d21409fce1))
ROM_LOAD( "hl2_3.ic4", 0x1000, 0x0800, CRC(69e57e8c) SHA1(e98510abb715dbf513e1b29fb6b09ab54e9483b7))
ROM_LOAD( "hl2_4.ic5", 0x1800, 0x0800, CRC(97cbbe74) SHA1(34f0bad41302b059322018abc3d1c2336ecfbea8))
ROM_LOAD( "hl2_m.ic6", 0x2000, 0x0800, CRC(10040235) SHA1(e121dfb97cc8ea99193a9396a9f7af08585e0ff0) )
ROM_FILL(0x46, 1, 0x18) // fix bad code
ROM_FILL(0x47, 1, 0x0E)
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "hl2.chr", 0x0000, 0x0800, CRC(2e669d40) SHA1(639dd82ed29985dc69830aca3b904b6acc8fe54a))
ROM_LOAD( "hl2.ic33", 0x0000, 0x0800, CRC(2e669d40) SHA1(639dd82ed29985dc69830aca3b904b6acc8fe54a))
// found on net, looks like bad dump
//ROM_LOAD_OPTIONAL( "hl2_ch.rom", 0x0800, 0x1000, CRC(6a5c915a) SHA1(7e4e966358556c6aabae992f4c2b292b6aab59bd) )
ROM_END
ROM_START( homelab3 )
ROM_REGION( 0x4000, "maincpu", 0 )
ROM_LOAD( "hl3_1.rom", 0x0000, 0x1000, CRC(6b90a8ea) SHA1(8ac40ca889b8c26cdf74ca309fbafd70dcfdfbec))
ROM_LOAD( "hl3_2.rom", 0x1000, 0x1000, CRC(bcac3c24) SHA1(aff371d17f61cb60c464998e092f04d5d85c4d52))
ROM_LOAD( "hl3_3.rom", 0x2000, 0x1000, CRC(ab1b4ab0) SHA1(ad74c7793f5dc22061a88ef31d3407267ad08719))
ROM_LOAD( "hl3_4.rom", 0x3000, 0x1000, CRC(bf67eff9) SHA1(2ef5d46f359616e7d0e5a124df528de44f0e850b))
ROM_LOAD( "hl3_1.ic1", 0x0000, 0x1000, CRC(6b90a8ea) SHA1(8ac40ca889b8c26cdf74ca309fbafd70dcfdfbec) )
ROM_LOAD( "hl3_2.ic2", 0x1000, 0x1000, CRC(bcac3c24) SHA1(aff371d17f61cb60c464998e092f04d5d85c4d52) )
ROM_LOAD( "hl3_3.ic3", 0x2000, 0x1000, CRC(ab1b4ab0) SHA1(ad74c7793f5dc22061a88ef31d3407267ad08719) )
ROM_LOAD( "hl3_4.ic4", 0x3000, 0x1000, CRC(bf67eff9) SHA1(2ef5d46f359616e7d0e5a124df528de44f0e850b) )
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "hl3.chr", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a))
ROM_LOAD( "hl3.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a) )
ROM_REGION( 0x0040, "proms", 0 )
ROM_LOAD( "tm188.ic7", 0x0000, 0x0040, NO_DUMP )
ROM_END
ROM_START( homelab4 )
ROM_REGION( 0x4000, "maincpu", 0 )
ROM_LOAD( "hl4_1.rom", 0x0000, 0x1000, CRC(a549b2d4) SHA1(90fc5595da8431616aee56eb5143b9f04281e798))
ROM_LOAD( "hl4_2.rom", 0x1000, 0x1000, CRC(151d33e8) SHA1(d32004bc1553f802b9d3266709552f7d5315fe44))
ROM_LOAD( "hl4_3.rom", 0x2000, 0x1000, CRC(39571ab1) SHA1(8470cff2e3442101e6a0bc655358b3a6fc1ef944))
ROM_LOAD( "hl4_4.rom", 0x3000, 0x1000, CRC(f4b77ca2) SHA1(ffbdb3c1819c7357e2a0fc6317c111a8a7ecfcd5))
ROM_LOAD( "hl4_1.ic1", 0x0000, 0x1000, CRC(a549b2d4) SHA1(90fc5595da8431616aee56eb5143b9f04281e798) )
ROM_LOAD( "hl4_2.ic2", 0x1000, 0x1000, CRC(151d33e8) SHA1(d32004bc1553f802b9d3266709552f7d5315fe44) )
ROM_LOAD( "hl4_3.ic3", 0x2000, 0x1000, CRC(39571ab1) SHA1(8470cff2e3442101e6a0bc655358b3a6fc1ef944) )
ROM_LOAD( "hl4_4.ic4", 0x3000, 0x1000, CRC(f4b77ca2) SHA1(ffbdb3c1819c7357e2a0fc6317c111a8a7ecfcd5) )
ROM_REGION( 0x0800, "chargen",0 )
ROM_LOAD( "hl4.chr", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a))
ROM_LOAD( "hl4.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a) )
ROM_REGION( 0x0040, "proms", 0 )
ROM_LOAD( "tm188.ic7", 0x0000, 0x0040, NO_DUMP )
ROM_END
ROM_START( brailab4 )
ROM_REGION( 0x5000, "maincpu", 0 )
ROM_LOAD( "brl1.rom", 0x0000, 0x1000, CRC(02323403) SHA1(3a2e853e0a39e05a04a8db58e1a76de1eda579c9))
ROM_LOAD( "brl2.rom", 0x1000, 0x1000, CRC(36173fbc) SHA1(1c01398e16a1cbe4103e1be769347ceae873e090))
ROM_LOAD( "brl3.rom", 0x2000, 0x1000, CRC(d3cdd108) SHA1(1a24e6c5f9c370ff6cb25045cb9d95e664467eb5))
ROM_LOAD( "brl4.rom", 0x3000, 0x1000, CRC(d4047885) SHA1(00fe40c4c2c64a49bb429fb2b27cc7e0d0025a85))
ROM_LOAD( "brl5.rom", 0x4000, 0x1000, CRC(8a76be04) SHA1(4b683b9be23b47117901fe874072eb7aa481e4ff))
ROM_LOAD( "brl1.ic1", 0x0000, 0x1000, CRC(02323403) SHA1(3a2e853e0a39e05a04a8db58e1a76de1eda579c9) )
ROM_LOAD( "brl2.ic2", 0x1000, 0x1000, CRC(36173fbc) SHA1(1c01398e16a1cbe4103e1be769347ceae873e090) )
ROM_LOAD( "brl3.ic3", 0x2000, 0x1000, CRC(d3cdd108) SHA1(1a24e6c5f9c370ff6cb25045cb9d95e664467eb5) )
ROM_LOAD( "brl4.ic4", 0x3000, 0x1000, CRC(d4047885) SHA1(00fe40c4c2c64a49bb429fb2b27cc7e0d0025a85) )
ROM_LOAD( "brl5.rom", 0x4000, 0x1000, CRC(8a76be04) SHA1(4b683b9be23b47117901fe874072eb7aa481e4ff) )
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "hl4.chr", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a))
ROM_LOAD( "hl4.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a) )
ROM_REGION( 0x0040, "proms", 0 )
ROM_LOAD( "tm188.ic7", 0x0000, 0x0040, NO_DUMP )
// these roms were found on the net, to be investigated
ROM_REGION( 0x5020, "user1", 0 )

6
src/mame/drivers/llc2.cpp
View File

@ -67,10 +67,10 @@ private:
void mem_map(address_map &map);
bool m_rv;
optional_device<speaker_sound_device> m_speaker;
optional_shared_ptr<u8> m_vram;
required_device<speaker_sound_device> m_speaker;
required_shared_ptr<u8> m_vram;
required_device<z80_device> m_maincpu;
optional_device<ram_device> m_ram;
required_device<ram_device> m_ram;
required_region_ptr<u8> m_p_chargen;
};