From 95c2668f4c768804d47c93ed991aea25093e3ed9 Mon Sep 17 00:00:00 2001 From: Robbbert Date: Sat, 10 Nov 2018 17:19:50 +1100 Subject: (nw) uts : added info from Al Kossow --- src/mame/drivers/univac.cpp | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/src/mame/drivers/univac.cpp b/src/mame/drivers/univac.cpp index 3dbc09ac8ea..dbdd2003b5b 100644 --- a/src/mame/drivers/univac.cpp +++ b/src/mame/drivers/univac.cpp @@ -36,6 +36,8 @@ You can use a debug trick to get UTS10 to boot: - When it stops @0157 halt, pc = 158 and g - When it loops at @0B33, pc = B35 and g +2018-11-10 Info from AL: cpu clock 3.072MHz; hsync 22.74KHz; vsync 60Hz + ****************************************************************************/ #include "emu.h" @@ -322,14 +324,14 @@ static const z80_daisy_config daisy_chain[] = MACHINE_CONFIG_START(univac_state::uts20) /* basic machine hardware */ - Z80(config, m_maincpu, XTAL(4'000'000)); // unknown clock + Z80(config, m_maincpu, 18.432_MHz_XTAL / 6); // 3.072 MHz m_maincpu->set_addrmap(AS_PROGRAM, &univac_state::mem_map); m_maincpu->set_addrmap(AS_IO, &univac_state::io_map); m_maincpu->set_daisy_config(daisy_chain); /* video hardware */ MCFG_SCREEN_ADD_MONOCHROME("screen", RASTER, rgb_t::green()) - MCFG_SCREEN_REFRESH_RATE(50) + MCFG_SCREEN_REFRESH_RATE(60) MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ MCFG_SCREEN_UPDATE_DRIVER(univac_state, screen_update) MCFG_SCREEN_SIZE(640, 25*14) @@ -340,19 +342,19 @@ MACHINE_CONFIG_START(univac_state::uts20) NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_1); - clock_device &ctc_clock(CLOCK(config, "ctc_clock", 2000000)); + clock_device &ctc_clock(CLOCK(config, "ctc_clock", 2000000)); // unknown ctc_clock.signal_handler().set(m_ctc, FUNC(z80ctc_device::trg0)); ctc_clock.signal_handler().append(m_ctc, FUNC(z80ctc_device::trg1)); ctc_clock.signal_handler().append(m_ctc, FUNC(z80ctc_device::trg2)); ctc_clock.signal_handler().append(m_ctc, FUNC(z80ctc_device::trg3)); - Z80CTC(config, m_ctc, 4_MHz_XTAL); + Z80CTC(config, m_ctc, 18.432_MHz_XTAL / 6); m_ctc->intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); m_ctc->zc_callback<1>().set(m_uart, FUNC(z80sio_device::txca_w)); m_ctc->zc_callback<1>().append(m_uart, FUNC(z80sio_device::rxca_w)); m_ctc->zc_callback<2>().set(m_uart, FUNC(z80sio_device::rxtxcb_w)); - Z80SIO(config, m_uart, 4_MHz_XTAL); + Z80SIO(config, m_uart, 18.432_MHz_XTAL / 6); m_uart->out_int_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0); m_uart->out_txda_callback().set(m_uart, FUNC(z80sio_device::rxa_w)); // FIXME: hacked in permanent loopback to pass test m_uart->out_txdb_callback().set(m_uart, FUNC(z80sio_device::rxb_w)); // FIXME: hacked in permanent loopback to pass test @@ -376,7 +378,7 @@ ROM_START( uts10 ) ROM_LOAD( "f3577_5.bin", 0x2000, 0x0800, CRC(38d671b5) SHA1(3fb3feaaddb08af5ba50a9c08511cbb3949a7985) ) ROM_LOAD( "f3577_6.bin", 0x2800, 0x0800, CRC(6dbe9c4a) SHA1(11bc4b7c99811bd26423a15b33d02a86fa0bfd17) ) - ROM_REGION( 0x0800, "chargen", 0 ) // possibly some bitrot, see h and m in F4 displayer + ROM_REGION( 0x0800, "chargen", 0 ) // possibly some bitrot, see h,m,n in F4 displayer ROM_LOAD( "chr_5565.bin", 0x0000, 0x0800, CRC(7d99744f) SHA1(2db330ca94a91f7b2ac2ac088ae9255f5bb0a7b4) ) ROM_END -- cgit v1.2.3