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(nw) uts20 : more guesswork, added sound.

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This commit is contained in:
Robbbert 2017-11-02 00:39:41 +11:00
parent 9c07460ad5
commit e30ba781a4
1 changed files with 63 additions and 33 deletions
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96
src/mame/drivers/univac.cpp
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@ -2,22 +2,33 @@
// copyright-holders:Robbbert // copyright-holders:Robbbert
/*************************************************************************** /***************************************************************************
Univac Terminals Univac Terminals
The terminals are models UTS20, UTS30, UTS40, UTS50 and SVT1120, The terminals are models UTS20, UTS30, UTS40, UTS50 and SVT1120,
however only the UTS20 is dumped (program roms only). however only the UTS20 is dumped (program roms only).
25/05/2009 Skeleton driver 2009-05-25 Skeleton driver
The terminal has 2 screens selectable by the operator with the Fn + 1-2 The terminal has 2 screens selectable by the operator with the Fn + 1-2
buttons. Thus the user can have two sessions open at once, to different buttons. Thus the user can have two sessions open at once, to different
mainframes or applications. mainframes or applications. The keyboard connected to the terminal with
a coiled cord and a 9-pin D-connector.
Sound is a beeper. Sound is a beeper.
This driver is all guesswork; Unisys never released technical info
to customers. All parts on the PCBs have internal Unisys part numbers
instead of the manufacturer's numbers.
Notes on failures in power-on test:
* Test 2 checks RAM parity. Patched out
* Test 5 tests ROM checksum. It seems one or more roms is a bad dump.
* Test 7 tests SIO ch B. The SIO should cause 9 interrupts. The CTC is
programmed as a time-out. But SIO only does first interrupt then hangs.
CTC then fires causing the failure message. It's unknown which CTC
channel drives Ch B, none seem to work. CTC trigger frequencies are
all guesswork too, but the present setup allows Tests 3 and 6 to pass.
This driver is all guesswork; Unisys never released technical info
to customers. All parts on the PCBs have internal Unisys part numbers
instead of the manufacturer's numbers.
****************************************************************************/ ****************************************************************************/
@ -26,9 +37,11 @@
#include "cpu/z80/z80daisy.h" #include "cpu/z80/z80daisy.h"
#include "machine/nvram.h" #include "machine/nvram.h"
#include "machine/z80ctc.h" #include "machine/z80ctc.h"
#include "machine/z80dart.h" #include "machine/z80sio.h"
#include "machine/clock.h" #include "machine/clock.h"
#include "screen.h" #include "screen.h"
#include "sound/beep.h"
#include "speaker.h"
class univac_state : public driver_device class univac_state : public driver_device
@ -40,13 +53,15 @@ public:
, m_p_videoram(*this, "videoram") , m_p_videoram(*this, "videoram")
, m_nvram(*this, "nvram") , m_nvram(*this, "nvram")
, m_ctc(*this, "ctc") , m_ctc(*this, "ctc")
, m_dart(*this, "dart") , m_uart(*this, "uart")
, m_p_chargen(*this, "chargen") , m_p_chargen(*this, "chargen")
, m_beep(*this, "beeper")
{ } { }
DECLARE_READ8_MEMBER(vram_r); DECLARE_READ8_MEMBER(vram_r);
DECLARE_WRITE8_MEMBER(vram_w); DECLARE_WRITE8_MEMBER(vram_w);
DECLARE_WRITE8_MEMBER(port43_w); DECLARE_WRITE8_MEMBER(port43_w);
DECLARE_WRITE8_MEMBER(porte6_w);
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
private: private:
@ -58,12 +73,18 @@ private:
required_shared_ptr<uint8_t> m_p_videoram; required_shared_ptr<uint8_t> m_p_videoram;
required_device<nvram_device> m_nvram; required_device<nvram_device> m_nvram;
required_device<z80ctc_device> m_ctc; required_device<z80ctc_device> m_ctc;
required_device<z80dart_device> m_dart; required_device<z80sio_device> m_uart;
required_region_ptr<u8> m_p_chargen; required_region_ptr<u8> m_p_chargen;
required_device<beep_device> m_beep;
}; };
WRITE8_MEMBER( univac_state::porte6_w )
{
m_beep->set_state(BIT(data, 0));
}
WRITE8_MEMBER( univac_state::port43_w ) WRITE8_MEMBER( univac_state::port43_w )
{ {
m_screen_num = BIT(data, 0); m_screen_num = BIT(data, 0);
@ -92,10 +113,11 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( uts20_io, AS_IO, 8, univac_state) static ADDRESS_MAP_START( uts20_io, AS_IO, 8, univac_state)
ADDRESS_MAP_GLOBAL_MASK(0xff) ADDRESS_MAP_GLOBAL_MASK(0xff)
ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("dart", z80dart_device, cd_ba_r, cd_ba_w) AM_RANGE(0x00, 0x03) AM_DEVREADWRITE("uart", z80sio_device, cd_ba_r, cd_ba_w)
AM_RANGE(0x20, 0x23) AM_DEVREADWRITE("ctc", z80ctc_device, read, write) AM_RANGE(0x20, 0x23) AM_DEVREADWRITE("ctc", z80ctc_device, read, write)
AM_RANGE(0x43, 0x43) AM_WRITE(port43_w) AM_RANGE(0x43, 0x43) AM_WRITE(port43_w)
AM_RANGE(0x80, 0xbf) AM_RAM AM_SHARE("nvram") AM_RANGE(0x80, 0xbf) AM_RAM AM_SHARE("nvram")
AM_RANGE(0xe6, 0xe6) AM_WRITE(porte6_w)
ADDRESS_MAP_END ADDRESS_MAP_END
/* Input ports */ /* Input ports */
@ -111,17 +133,11 @@ void univac_state::machine_start()
void univac_state::machine_reset() void univac_state::machine_reset()
{ {
m_screen_num = 0; m_screen_num = 0;
m_beep->set_state(0);
} }
uint32_t univac_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) uint32_t univac_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{ {
// this is used to get the ctc to pass the test
bool state = BIT(m_framecnt,0);
m_ctc->trg0(state);
m_ctc->trg1(state);
m_ctc->trg2(state);
m_ctc->trg3(state);
uint8_t y,ra,chr,gfx; uint8_t y,ra,chr,gfx;
uint16_t sy=0,ma=0,x; uint16_t sy=0,ma=0,x;
uint8_t *videoram = m_p_videoram;//+(m_screen_num ? 0x2000 : 0); uint8_t *videoram = m_p_videoram;//+(m_screen_num ? 0x2000 : 0);
@ -162,7 +178,7 @@ uint32_t univac_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
static const z80_daisy_config daisy_chain[] = static const z80_daisy_config daisy_chain[] =
{ {
{ "dart" }, { "uart" },
{ "ctc" }, { "ctc" },
{ nullptr } { nullptr }
}; };
@ -186,16 +202,29 @@ static MACHINE_CONFIG_START( uts20 )
MCFG_NVRAM_ADD_1FILL("nvram") MCFG_NVRAM_ADD_1FILL("nvram")
MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600) MCFG_DEVICE_ADD("ctc_clock", CLOCK, 2000000)
MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("dart", z80dart_device, txca_w)) MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("ctc", z80ctc_device, trg0))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("dart", z80dart_device, rxca_w)) MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("ctc", z80ctc_device, trg1))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("dart", z80dart_device, txcb_w)) MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("ctc", z80ctc_device, trg2))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("dart", z80dart_device, rxcb_w)) MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("ctc", z80ctc_device, trg3))
//MCFG_DEVICE_ADD("uart_clock", CLOCK, 307200)
//MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("uart", z80sio_device, txcb_w))
//MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("uart", z80sio_device, rxcb_w))
MCFG_DEVICE_ADD("ctc", Z80CTC, XTAL_4MHz) MCFG_DEVICE_ADD("ctc", Z80CTC, XTAL_4MHz)
MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) MCFG_Z80CTC_INTR_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
MCFG_DEVICE_ADD("dart", Z80DART, XTAL_4MHz) MCFG_Z80CTC_ZC1_CB(DEVWRITELINE("uart", z80sio_device, txca_w))
MCFG_Z80DART_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("uart", z80sio_device, rxca_w))
MCFG_Z80CTC_ZC2_CB(DEVWRITELINE("uart", z80sio_device, rxtxcb_w))
MCFG_DEVICE_ADD("uart", Z80SIO, XTAL_4MHz)
MCFG_Z80SIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0))
/* Sound */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_SOUND_ADD("beeper", BEEP, 950) // guess
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.10)
MACHINE_CONFIG_END MACHINE_CONFIG_END
@ -207,9 +236,10 @@ ROM_START( uts20 )
ROM_LOAD( "uts20c.rom", 0x2000, 0x1000, CRC(4e334705) SHA1(ff1a730551b42f29d20af8ecc4495fd30567d35b) ) ROM_LOAD( "uts20c.rom", 0x2000, 0x1000, CRC(4e334705) SHA1(ff1a730551b42f29d20af8ecc4495fd30567d35b) )
ROM_LOAD( "uts20d.rom", 0x3000, 0x1000, CRC(76757cf7) SHA1(b0509d9a35366b21955f83ec3685163844c4dbf1) ) ROM_LOAD( "uts20d.rom", 0x3000, 0x1000, CRC(76757cf7) SHA1(b0509d9a35366b21955f83ec3685163844c4dbf1) )
ROM_LOAD( "uts20e.rom", 0x4000, 0x1000, CRC(0dfc8062) SHA1(cd681020bfb4829d4cebaf1b5bf618e67b55bda3) ) ROM_LOAD( "uts20e.rom", 0x4000, 0x1000, CRC(0dfc8062) SHA1(cd681020bfb4829d4cebaf1b5bf618e67b55bda3) )
// Patches, see notes at top.
ROM_FILL(0x2bd,1,0xaf) // test 2 ROM_FILL(0x2bd,1,0xaf) // test 2
ROM_FILL(0x3c1,2,0xaf) // test 5 ROM_FILL(0x48f1,1,0xa3) // test 5, patch unused byte to fix checksum
ROM_FILL(0x928,1,0x00) ROM_FILL(0x928,1,0x00) // upon failure keep going
/* character generator not dumped, using the one from 'c10' for now */ /* character generator not dumped, using the one from 'c10' for now */
ROM_REGION( 0x2000, "chargen", 0 ) ROM_REGION( 0x2000, "chargen", 0 )
@ -219,4 +249,4 @@ ROM_END
/* Driver */ /* Driver */
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS // YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1980, uts20, 0, 0, uts20, uts20, univac_state, 0, "Sperry Univac", "UTS-20", MACHINE_NOT_WORKING | MACHINE_NO_SOUND ) COMP( 1980, uts20, 0, 0, uts20, uts20, univac_state, 0, "Sperry Univac", "UTS-20", MACHINE_NOT_WORKING )