// license:BSD-3-Clause // copyright-holders:Miodrag Milanovic, MetalliC /********************************************************************* beta.h Implementation of Beta disk drive support for Spectrum and clones 04/05/2008 Created by Miodrag Milanovic *********************************************************************/ /* BUGS: - due to original firmware bug random commands can be sent to FDC instead of SEEK */ #include "emu.h" #include "machine/beta.h" #include "formats/trd_dsk.h" /*************************************************************************** TYPE DEFINITIONS ***************************************************************************/ DEFINE_DEVICE_TYPE(BETA_DISK, beta_disk_device, "betadisk", "Beta Disk Interface") beta_disk_device::beta_disk_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock) : device_t(mconfig, BETA_DISK, tag, owner, clock) , m_betadisk_active(0) , m_wd179x(*this, "wd179x") , m_floppy0(*this, "wd179x:0") , m_floppy1(*this, "wd179x:1") , m_floppy2(*this, "wd179x:2") , m_floppy3(*this, "wd179x:3") { } //------------------------------------------------- // device_start - device-specific startup //------------------------------------------------- void beta_disk_device::device_start() { } //------------------------------------------------- // device_reset - device-specific reset //------------------------------------------------- void beta_disk_device::device_reset() { } int beta_disk_device::is_active() { return m_betadisk_active; } void beta_disk_device::enable() { m_betadisk_active = 1; } void beta_disk_device::disable() { m_betadisk_active = 0; } READ8_MEMBER(beta_disk_device::status_r) { if (m_betadisk_active==1) { return m_wd179x->status_r(); } else { return 0xff; } } READ8_MEMBER(beta_disk_device::track_r) { if (m_betadisk_active==1) { return m_wd179x->track_r(); } else { return 0xff; } } READ8_MEMBER(beta_disk_device::sector_r) { if (m_betadisk_active==1) { return m_wd179x->sector_r(); } else { return 0xff; } } READ8_MEMBER(beta_disk_device::data_r) { if (m_betadisk_active==1) { return m_wd179x->data_r(); } else { return 0xff; } } READ8_MEMBER(beta_disk_device::state_r) { if (m_betadisk_active==1) { uint8_t result = 0x3F; // actually open bus result |= m_wd179x->drq_r() ? 0x40 : 0; result |= m_wd179x->intrq_r() ? 0x80 : 0; return result; } else { return 0xff; } } WRITE8_MEMBER(beta_disk_device::param_w) { if (m_betadisk_active == 1) { floppy_connector* connectors[] = { m_floppy0, m_floppy1, m_floppy2, m_floppy3 }; floppy_image_device* floppy = connectors[data & 3]->get_device(); m_wd179x->set_floppy(floppy); floppy->ss_w(BIT(data, 4) ? 0 : 1); m_wd179x->dden_w(BIT(data, 6)); // bit 3 connected to pin 23 "HLT" of FDC and via diode to INDEX //m_wd179x->hlt_w(BIT(data, 3)); // not handled in current wd_fdc if (BIT(data, 2) == 0) // reset { m_wd179x->reset(); floppy->mon_w(ASSERT_LINE); } else { // HACK, FDD motor and RDY FDC pin controlled by HLD pin of FDC floppy->mon_w(CLEAR_LINE); } } } WRITE8_MEMBER(beta_disk_device::command_w) { if (m_betadisk_active==1) { m_wd179x->cmd_w(data); } } WRITE8_MEMBER(beta_disk_device::track_w) { if (m_betadisk_active==1) { m_wd179x->track_w(data); } } WRITE8_MEMBER(beta_disk_device::sector_w) { if (m_betadisk_active==1) { m_wd179x->sector_w(data); } } WRITE8_MEMBER(beta_disk_device::data_w) { if (m_betadisk_active==1) { m_wd179x->data_w(data); } } FLOPPY_FORMATS_MEMBER(beta_disk_device::floppy_formats) FLOPPY_TRD_FORMAT FLOPPY_FORMATS_END static void beta_disk_floppies(device_slot_interface &device) { device.option_add("525qd", FLOPPY_525_QD); } ROM_START( beta_disk ) ROM_REGION( 0x60000, "beta", 0 ) ROM_LOAD( "trd501.rom", 0x00000, 0x4000, CRC(3e3cdd4c) SHA1(8303ba0cc79daa6c04cd1e6ce27e8b6886a3f0de)) ROM_LOAD( "trd503zxvgs.rom",0x00000, 0x4000, CRC(b90ee684) SHA1(c78e1b36812fb2b3e7a62e66049c850d27de74a6)) ROM_LOAD( "trd503m.rom", 0x00000, 0x4000, CRC(2f97fe06) SHA1(6b9decc07d5d7322c6c283f5fe950f530a42d70d)) ROM_LOAD( "trd503,a.rom", 0x00000, 0x4000, CRC(c43d717f) SHA1(0a74bd34538a03d0e1d214b425d95c14ad10c8c4)) ROM_LOAD( "trd503,a2.rom", 0x00000, 0x4000, CRC(121889b0) SHA1(c9d69cf3a0219f6e37e7eb5046961fa8fa8eb2c6)) ROM_LOAD( "trd503,a3.rom", 0x00000, 0x4000, CRC(1c5a25b1) SHA1(4a6fbabd82a6a8f3986ac77e7157d1a2551ed40d)) ROM_LOAD( "trd503beta3.rom",0x00000, 0x4000, CRC(561662f2) SHA1(4cea8a361eb848cf0ad59605c83d57c30521cfd5)) ROM_LOAD( "trd503beta4.rom",0x00000, 0x4000, CRC(23dbc387) SHA1(74b80d3f07dc95e9f09b83c3df4724f063f47116)) ROM_LOAD( "trd503all.rom", 0x00000, 0x4000, CRC(4c0187ab) SHA1(21f611e5e0bbf5d6450606e30b470f7c2c9640f1)) ROM_LOAD( "trd503aut.rom", 0x00000, 0x4000, CRC(7ff90178) SHA1(2261144bdb5046cb8013f744a5b0721be8577dc7)) ROM_LOAD( "trd503ext.rom", 0x00000, 0x4000, CRC(abb139e7) SHA1(3c1736857655a48375d30b3865963090ba635635)) ROM_LOAD( "trd503kay.rom", 0x00000, 0x4000, CRC(77baccbb) SHA1(9c5fb89b57643f723246453809dad3f669bf59a3)) ROM_LOAD( "trd503xbios.rom",0x00000, 0x4000, CRC(8be427cc) SHA1(78f423fd200e720aa6b857f00969fa1f8c7da20e)) ROM_LOAD( "trd503,a4.rom", 0x00000, 0x4000, CRC(c2387608) SHA1(93e0b92a3f38b59cc006d22f9c9299f5377b15e5)) ROM_LOAD( "trd504.rom", 0x00000, 0x4000, CRC(ba310874) SHA1(05e55e37df8eee6c68601ba9cf6c92195852ce3f)) ROM_LOAD( "trd504s.rom", 0x00000, 0x4000, CRC(c5ca0423) SHA1(cb2da2c4575bc54454e4f97073c5bb37505487fe)) ROM_LOAD( "trd504s2.rom", 0x00000, 0x4000, CRC(1e9b59aa) SHA1(d6eb0eeb429c70d1f8f9a23ca4e2feb5f73d3120)) ROM_LOAD( "trd504s3.rom", 0x00000, 0x4000, CRC(1fe1d003) SHA1(33703e97cc93b7edfcc0334b64233cf81b7930db)) ROM_LOAD( "trd504tm.rom", 0x00000, 0x4000, CRC(2334b8c6) SHA1(2fd8944e067140324e998b59aab766f16eb5c7fb)) ROM_LOAD( "trd504t.rom", 0x00000, 0x4000, CRC(e212d1e0) SHA1(745e9caf576e64a5386ad845256d28593d34cc40)) ROM_LOAD( "trd504tb2.rom", 0x00000, 0x4000, CRC(8d943e6b) SHA1(bf6ab329791258f02c5f695b0c7448998b709435)) ROM_LOAD( "trd504s4.rom", 0x00000, 0x4000, CRC(522ebbd6) SHA1(eede6a988ed453e506b27a8d09470e0a8d97d1aa)) ROM_LOAD( "trd504f.rom", 0x00000, 0x4000, CRC(ab3100d8) SHA1(33646525ae1c579cddc0dd84d3218095950965b8)) ROM_LOAD( "trd504em.rom", 0x00000, 0x4000, CRC(0d3f8b43) SHA1(d6783983a16b17b79337c22e9460e1cfde3744ae)) ROM_LOAD( "trd504-1.rom", 0x00000, 0x4000, CRC(da170c65) SHA1(80f0fe79cbf393ac91ff971d31ff9eab0c9a959e)) ROM_LOAD( "trd504m.rom", 0x00000, 0x4000, CRC(2f2cb630) SHA1(40b1f87f8be4e09630d7eb7c14561dde0b85c0c9)) ROM_LOAD( "trd504em,a.rom", 0x00000, 0x4000, CRC(fcbf11e8) SHA1(8050d371d7049e0c3e946964643396a39aa5ab0f)) ROM_LOAD( "trd5043.rom", 0x00000, 0x4000, CRC(165d5ef8) SHA1(99d25234154e4a8b3ad5e06f260b6c41c253b333)) ROM_LOAD( "trd505.rom", 0x00000, 0x4000, CRC(fdff3810) SHA1(0a0e284d4764a542aa3e5d7c43d0291036e16c35)) ROM_LOAD( "trd505,a.rom", 0x00000, 0x4000, CRC(03b76c8f) SHA1(ef2a07767d3b229aa4573dcfee905156a83bc32d)) ROM_LOAD( "trd505h.rom", 0x00000, 0x4000, CRC(9ba15549) SHA1(5908784cdfb782066bde08f186f0bbb6f6b80545)) ROM_LOAD( "trd505d.rom", 0x00000, 0x4000, CRC(31e4be08) SHA1(dd08bdea8b5caa35569f49770e380d16bb37502b)) ROM_LOAD( "trd505,a2.rom", 0x00000, 0x4000, CRC(a102e726) SHA1(a3f0ef7b7d8b3022f306be8d9e8a51ae699097df)) ROM_LOAD( "trd56661.rom", 0x00000, 0x4000, CRC(8528c789) SHA1(1332a01137bd537fee696ba7adddc0a15b3237c4)) ROM_LOAD( "trd5666hte.rom", 0x00000, 0x4000, CRC(03841161) SHA1(4e523768231130947a81247e116fc049bd6da963)) ROM_LOAD( "trd5613.rom", 0x00000, 0x4000, CRC(d66cda49) SHA1(dac3c8396fc4f85b5673076cc647afbe439ad17a)) ROM_LOAD( "trd512.rom", 0x00000, 0x4000, CRC(b615d6c4) SHA1(4abb90243f66df19caa84f82d0b880a6ce344eca)) ROM_LOAD( "trd512f.rom", 0x00000, 0x4000, CRC(edb74f8c) SHA1(c5b2cd18926dde4a68bcd8c360ba33d6c11b8801)) ROM_LOAD( "trd513f.rom", 0x00000, 0x4000, CRC(6b1c17f3) SHA1(5c14c0c389e29521cb59672d93d3e8a74f0184cc)) ROM_LOAD( "trd513fm.rom", 0x00000, 0x4000, CRC(bad0c0a0) SHA1(da88e756302f83991774730012601ebf3c61aed9)) ROM_LOAD( "trd513p.rom", 0x00000, 0x4000, CRC(eb3196fe) SHA1(7c85b9b562d288155677f20f5e41e679c073379b)) ROM_LOAD( "trd604.rom", 0x00000, 0x4000, CRC(d8882a8c) SHA1(282eb7bc819aad2a12fd954e76f7838a4e1a7929)) ROM_LOAD( "trd604m.rom", 0x00000, 0x4000, CRC(e73394cb) SHA1(5b1336e8534513df0a71f8fedca38bc67174f03c)) ROM_LOAD( "trd605r.rom", 0x00000, 0x4000, CRC(f8816a47) SHA1(98c9b63835e559f38f6a8d1344992f02cb899add)) ROM_LOAD( "trd605e.rom", 0x00000, 0x4000, CRC(56d3c2db) SHA1(adc21492d216da1aca4119972f2110a23fdd23a7)) ROM_LOAD( "trd605h.rom", 0x00000, 0x4000, CRC(53bb1b4a) SHA1(fc899901fd59c84c9aa6c402b67d76b225ab8e5b)) ROM_LOAD( "trd605e-2.rom", 0x00000, 0x4000, CRC(a064b7f2) SHA1(46ac75e88375d313fdd5e873800bf82c179eb226)) ROM_LOAD( "trd605e-3.rom", 0x00000, 0x4000, CRC(cff3d06b) SHA1(0fca9c61cb94a4cab78118c66ba54ce6bc6dcf65)) ROM_LOAD( "trd606h.rom", 0x00000, 0x4000, CRC(6b44fdd7) SHA1(4ca7ea2bc0e62c98c9ba86a304aee3cbf88d6b09)) ROM_LOAD( "trd607m.rom", 0x00000, 0x4000, CRC(5a062f03) SHA1(bbd68481c76e8a3f2f26847faa72c42df013b617)) ROM_LOAD( "trd608.rom", 0x00000, 0x4000, CRC(5c998d53) SHA1(c65a972e75e627336c44ea184cb9ae81dfa2069b)) ROM_LOAD( "trd608-2.rom", 0x00000, 0x4000, CRC(3541b280) SHA1(2b93c1887f485639ec15860b5503dc7efb6d31d6)) ROM_LOAD( "trd608-3.rom", 0x00000, 0x4000, CRC(d3e91d69) SHA1(5e367d3601d07bd2af1d6255561a5983c0e9fb5d)) ROM_LOAD( "trd609.rom", 0x00000, 0x4000, CRC(91028924) SHA1(fa5433f73aab93c58c891ceee2cdfed0a979dfbb)) ROM_LOAD( "trd609e.rom", 0x00000, 0x4000, CRC(46312c8c) SHA1(0ce69fe76e17a875c287e3725f6209f1c59d8bd9)) ROM_LOAD( "trd610e.rom", 0x00000, 0x4000, CRC(95395ca4) SHA1(8cda2efbf2360cd675ea8b04b43cf1746fb41f35)) ROM_LOAD( "trd701.rom", 0x00000, 0x4000, CRC(47f39c0d) SHA1(53d8b8959c321618caaef5aeb270e530e8f8ada3)) //Default for now ROM_LOAD( "trd503.rom", 0x00000, 0x4000, CRC(10751aba) SHA1(21695e3f2a8f796386ce66eea8a246b0ac44810c)) ROM_END //------------------------------------------------- // device_add_mconfig - add device configuration //------------------------------------------------- void beta_disk_device::device_add_mconfig(machine_config &config) { KR1818VG93(config, m_wd179x, 8_MHz_XTAL / 8); FLOPPY_CONNECTOR(config, m_floppy0, beta_disk_floppies, "525qd", beta_disk_device::floppy_formats).enable_sound(true); FLOPPY_CONNECTOR(config, m_floppy1, beta_disk_floppies, "525qd", beta_disk_device::floppy_formats).enable_sound(true); FLOPPY_CONNECTOR(config, m_floppy2, beta_disk_floppies, "525qd", beta_disk_device::floppy_formats).enable_sound(true); FLOPPY_CONNECTOR(config, m_floppy3, beta_disk_floppies, "525qd", beta_disk_device::floppy_formats).enable_sound(true); } //------------------------------------------------- // device_rom_region - return a pointer to the // the device's ROM definitions //------------------------------------------------- const tiny_rom_entry *beta_disk_device::device_rom_region() const { return ROM_NAME(beta_disk ); }