mirror of
https://github.com/holub/mame
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New machines marked as NOT_WORKING
---------------------------------- DECmate II (PC278) [AJR, Vince Slyngstad] DECmate III (PC238) [AJR, Vince Slyngstad]
This commit is contained in:
AJR
parent
9a909ee83b
commit
3955b5c9e9
@ -99,6 +99,7 @@ CPUS["F8"] = true
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CPUS["LH5801"] = true
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CPUS["PATINHOFEIO"] = true
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CPUS["PDP1"] = true
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CPUS["PDP8"] = true
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CPUS["TX0"] = true
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CPUS["SATURN"] = true
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CPUS["SC61860"] = true
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@ -2217,6 +2218,7 @@ files {
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createMESSProjects(_target, _subtarget, "dec")
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files {
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MAME_DIR .. "src/mame/drivers/dct11em.cpp",
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MAME_DIR .. "src/mame/drivers/decmate2.cpp",
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MAME_DIR .. "src/mame/drivers/decstation.cpp",
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MAME_DIR .. "src/mame/machine/decioga.cpp",
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MAME_DIR .. "src/mame/machine/decioga.h",
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@ -247,6 +247,7 @@ const double XTAL::known_xtals[] = {
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15'582'000, /* 15.582_MHz_XTAL Zentec Zephyr */
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15'667'200, /* 15.6672_MHz_XTAL Apple Macintosh */
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15'700'000, /* 15.7_MHz_XTAL Motogonki */
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15'741'000, /* 15.741_MHz_XTAL DECmate II 80-column display clock */
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15'897'600, /* 15.8976_MHz_XTAL IAI Swyft */
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15'920'000, /* 15.92_MHz_XTAL HP Integral PC */
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15'930'000, /* 15.93_MHz_XTAL ADM 12 */
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402
src/mame/drivers/decmate2.cpp
Normal file
402
src/mame/drivers/decmate2.cpp
Normal file
@ -0,0 +1,402 @@
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// license:BSD-3-Clause
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// copyright-holders:AJR
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/****************************************************************************
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Skeleton driver for DECmate II & III business PCs.
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The DECmate II & III are the last and in some ways least PDP-8-like
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members of DEC's 12-bit computer line. Based on a Harris HD-6120 CMOS
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LSI CPU with 64K words (advertised as 96 KB) of RAM, they were designed
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mostly to run WPS on OS/278 and are not very compatible with older
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software.
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DECmate II (PC278) abandoned the system-in-a-terminal form factor of the
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VT78 DECstation and VT278 DECmate, adopting the BA25 chassis also used
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in the Rainbow 100. Instead of the custom RX01 or RX02 8-inch disk
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drives (whose use is supported only through the optional PC27X-BA
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adapter), the one or two internal 400 KB RX50 drives are basically
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industry-standard 5.25-inch floppy disk drives, with a CPU interface
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that simulates the old RX8-E using a 8051 MCU with 2 KB of buffer SRAM
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and an off-the-shelf FDC. The CRT9007 CRT controller (which may be
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configured for 80-column or 132-column modes) and LK201 keyboard are the
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same as used in the VT220 display terminal, which the monochrome (white,
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green or amber) VR201 monitor also physically resembles. (As with the
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DECmate's VT100 keyboard, the LK201 may have its PF1 key is painted gold
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to highlight its importance to DECmate software.) DECmate II also differs
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from its CMOS-8 predecessors in using standard 8-bit EPROMs rather than
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specialized 12-bit ROMs for its "control panel" program.
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DECmate II had three different types of expansion options: the
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aforementioned storage adapter, which also supported a 10 MB hard disk
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(RDC51-CA); a graphics board supporting monochrome or color graphics on
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a second monitor; and an Auxiliary Processor Unit. The basic APU
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(PC27X-AA or -AB) ran CP/M on a Z80 with 64K of its own RAM. The
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upgraded XPU (PC27X-AH or PC27X-AJ) could also run MS-DOS 2.11 using an
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additional 8086 CPU with 256K or 512K of RAM.
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DECmate III (PC238) was a repackaging of the DECmate II in a smaller but
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taller box that provides space for only one internal RX33 floppy drive.
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Much of the timing and support logic is compressed into two large PLCC
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gate arrays (DC381 and DC382), with a PLL and PAL16R8 to assist the FDC.
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The DECmate III's own APU and graphics options share a single and unique
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expansion connector; the PC23X-CA graphics card supported RGB color
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output on a VR241 monitor. DEC also later released an enhanced version
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called DECmate III Plus (PC24P), which added a 20 MB RD31 hard disk.
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****************************************************************************/
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#include "emu.h"
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#include "bus/rs232/rs232.h"
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#include "cpu/pdp8/pdp8.h"
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#include "cpu/mcs51/mcs51.h"
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#include "imagedev/floppy.h"
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#include "machine/ay31015.h"
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#include "machine/clock.h"
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#include "machine/com8116.h"
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#include "machine/dec_lk201.h"
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#include "machine/wd_fdc.h"
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#include "machine/z80sio.h"
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#include "video/crt9007.h"
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#include "screen.h"
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class decmate2_state : public driver_device
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{
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public:
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decmate2_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_rxcpu(*this, "rxcpu")
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, m_fdc(*this, "fdc")
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, m_floppy(*this, {"fdc:a0", "fdc:a1", "fdc:b0", "fdc:b1"})
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, m_kbduart(*this, "kbduart")
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, m_prtuart(*this, "prtuart")
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, m_mpscc(*this, "mpscc")
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, m_brg(*this, "brg%u", 0U)
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, m_crtc(*this, "crtc")
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, m_cprom(*this, "cprom")
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, m_chargen(*this, "chargen")
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, m_rxdata(0)
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{
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}
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void pc278(machine_config &config);
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void pc238(machine_config &config);
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void init_pc278();
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void init_pc238();
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protected:
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virtual void machine_start() override;
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private:
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u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
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u8 rx_ldata_r();
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void rx_ldata_w(u8 data);
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u8 rx_hdata_r();
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void rx_hdata_w(u8 data);
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void rx_control_w(u8 data);
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u8 rx_status_r();
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u8 rx_intr_r();
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void rx_sel_w(u8 data);
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u8 rx_rdy_r();
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void mem_map(address_map &map);
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void rx_map(address_map &map);
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required_device<cpu_device> m_maincpu;
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required_device<i8051_device> m_rxcpu;
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required_device<fd1793_device> m_fdc;
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optional_device_array<floppy_connector, 4> m_floppy;
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required_device<ay31015_device> m_kbduart;
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required_device<ay31015_device> m_prtuart;
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required_device<upd7201_device> m_mpscc;
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optional_device_array<com8116_device, 2> m_brg;
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required_device<crt9007_device> m_crtc;
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required_region_ptr<u16> m_cprom;
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required_region_ptr<u8> m_chargen;
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u16 m_rxdata; // 74LS298, writable from both 6120 and 8051
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};
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void decmate2_state::init_pc278()
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{
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for (u16 addr = 0; addr < 04000; addr++)
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{
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// Shift E113 and E114 ROMs into their proper places and separate even and odd bits of E115
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m_cprom[addr | 04000] = (m_cprom[addr | 04000] & 0xff00) >> 4 | bitswap<4>(m_cprom[addr], 6, 4, 2, 0);
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m_cprom[addr] = (m_cprom[addr] & 0xff00) >> 4 | bitswap<4>(m_cprom[addr], 7, 5, 3, 1);
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}
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}
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void decmate2_state::init_pc238()
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{
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for (u16 addr = 0; addr < 010000; addr++)
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m_cprom[addr] &= 07777;
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}
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void decmate2_state::machine_start()
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{
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if (m_brg[1].found())
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{
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m_brg[1]->str_w(12);
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m_brg[1]->stt_w(0);
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}
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m_kbduart->write_np(1);
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m_kbduart->write_nb2(1);
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m_kbduart->write_nb1(1);
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m_kbduart->write_eps(1);
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m_kbduart->write_tsb(0);
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m_kbduart->write_cs(1);
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m_kbduart->write_swe(0);
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m_prtuart->write_np(1);
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m_prtuart->write_nb2(1);
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m_prtuart->write_nb1(1);
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m_prtuart->write_eps(1);
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m_prtuart->write_tsb(0);
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m_prtuart->write_cs(1);
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m_prtuart->write_swe(0);
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m_fdc->dden_w(0);
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// 7201 modem signal inputs are either pulled up or grounded
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m_mpscc->ctsa_w(0);
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m_mpscc->dcda_w(0);
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m_mpscc->dcdb_w(1);
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m_mpscc->rxb_w(0);
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m_mpscc->synca_w(1);
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m_mpscc->syncb_w(1);
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save_item(NAME(m_rxdata));
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}
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u32 decmate2_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
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{
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// TODO
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return 0;
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}
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u8 decmate2_state::rx_ldata_r()
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{
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return m_rxdata & 0xff;
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}
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void decmate2_state::rx_ldata_w(u8 data)
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{
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m_rxdata = (m_rxdata & 07400) | data;
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}
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u8 decmate2_state::rx_hdata_r()
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{
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return m_rxdata >> 8;
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}
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void decmate2_state::rx_hdata_w(u8 data)
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{
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m_rxdata = (m_rxdata & 0377) | (data & 0x0f) << 8;
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}
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void decmate2_state::rx_control_w(u8 data)
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{
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// TODO
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}
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u8 decmate2_state::rx_status_r()
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{
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// TODO
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return 0;
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}
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u8 decmate2_state::rx_intr_r()
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{
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return m_fdc->intrq_r() << 5;
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}
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void decmate2_state::rx_sel_w(u8 data)
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{
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const int n = BIT(~data, 1, 2);
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if (BIT(data, 3) && m_floppy[n].found())
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{
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floppy_image_device *const img = m_floppy[n]->get_device();
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m_fdc->set_floppy(img);
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if (img != nullptr)
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img->ss_w(BIT(data, 0)); // or inverted?
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}
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else
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m_fdc->set_floppy(nullptr);
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for (int i = 0; i < 4 && m_floppy[i].found(); i++)
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{
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floppy_image_device *img = m_floppy[i]->get_device();
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if (img != nullptr)
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img->mon_w((i & 2) == (~data & 0x14) >> 1 ? 0 : 1);
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}
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}
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u8 decmate2_state::rx_rdy_r()
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{
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return m_fdc->drq_r() << 6 /*| m_fdc->ready_r() << 7*/;
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}
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void decmate2_state::mem_map(address_map &map)
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{
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map(00000, 07777).rom().region("cprom", 0);
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}
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// TODO: all I/O devices
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// 03/04/07: Control panel interrupt
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// 05: Keyboard input
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// 06: Video interrupt
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// 11: Keyboard output
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// 12: CRTC
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// 13: Clock
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// 14: APU option
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// 30: Communications receive
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// 31: Communications transmit
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// 32: Printer input
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// 33: Printer output and baud rate
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// 36: Modem control and baud rate
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// 75: RX Simulator
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void decmate2_state::rx_map(address_map &map)
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{
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map.global_mask(0x7ff);
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map(0x000, 0x000).mirror(0x3f0).rw(FUNC(decmate2_state::rx_ldata_r), FUNC(decmate2_state::rx_ldata_w));
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map(0x001, 0x001).mirror(0x3f0).rw(FUNC(decmate2_state::rx_hdata_r), FUNC(decmate2_state::rx_hdata_w));
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map(0x002, 0x002).mirror(0x3f0).w(FUNC(decmate2_state::rx_control_w));
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map(0x003, 0x003).mirror(0x3f0).r(FUNC(decmate2_state::rx_status_r));
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map(0x008, 0x00b).mirror(0x3f4).rw(m_fdc, FUNC(fd1793_device::read), FUNC(fd1793_device::write));
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map(0x400, 0x7ff).ram();
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}
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static INPUT_PORTS_START(decmate2)
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INPUT_PORTS_END
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static void rx50_floppies(device_slot_interface &device)
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{
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device.option_add("525qd", FLOPPY_525_QD); // MFM, 2 sides, 80 tracks
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}
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// XTALs: 5.0688 MHz, 15.741 MHz, 22.896 MHz, 16.000 MHz
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void decmate2_state::pc278(machine_config &config)
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{
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PDP8(config, m_maincpu, 16_MHz_XTAL / 2); // FIXME: HD-6120 with dynamic divider
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m_maincpu->set_addrmap(AS_PROGRAM, &decmate2_state::mem_map);
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I8051(config, m_rxcpu, 16_MHz_XTAL / 2);
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m_rxcpu->set_addrmap(AS_IO, &decmate2_state::rx_map);
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m_rxcpu->port_in_cb<1>().set(FUNC(decmate2_state::rx_intr_r));
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m_rxcpu->port_out_cb<1>().set(FUNC(decmate2_state::rx_sel_w));
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m_rxcpu->port_in_cb<2>().set(FUNC(decmate2_state::rx_rdy_r));
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FD1793(config, m_fdc, 16_MHz_XTAL / 16);
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m_fdc->set_force_ready(false);
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FLOPPY_CONNECTOR(config, m_floppy[0], rx50_floppies, "525qd", floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
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FLOPPY_CONNECTOR(config, m_floppy[1], rx50_floppies, nullptr, floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
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FLOPPY_CONNECTOR(config, m_floppy[2], rx50_floppies, nullptr, floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
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FLOPPY_CONNECTOR(config, m_floppy[3], rx50_floppies, nullptr, floppy_image_device::default_mfm_floppy_formats).enable_sound(true);
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AY31015(config, m_kbduart); // 6402
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m_kbduart->write_so_callback().set("keyboard", FUNC(lk201_device::rx_w));
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m_kbduart->set_auto_rdav(true);
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AY31015(config, m_prtuart); // 6402
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m_prtuart->write_so_callback().set("printer", FUNC(rs232_port_device::write_txd));
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m_prtuart->write_fe_callback().set_nop(); // TODO: output on connector pin 9
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m_prtuart->set_auto_rdav(true);
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UPD7201(config, m_mpscc, 16_MHz_XTAL / 8);
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m_mpscc->out_txda_callback().set("com", FUNC(rs232_port_device::write_txd));
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COM8116(config, m_brg[0], 5.0688_MHz_XTAL); // 5016T
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m_brg[0]->fr_handler().set(m_prtuart, FUNC(ay31015_device::write_rcp));
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m_brg[0]->fr_handler().append(m_prtuart, FUNC(ay31015_device::write_tcp));
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m_brg[0]->ft_handler().set(m_mpscc, FUNC(upd7201_device::txca_w));
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m_brg[0]->ft_handler().append(m_mpscc, FUNC(upd7201_device::rxca_w));
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COM8116(config, m_brg[1], 5.0688_MHz_XTAL); // 5016T
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m_brg[1]->fr_handler().set(m_kbduart, FUNC(ay31015_device::write_rcp));
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m_brg[1]->fr_handler().append(m_kbduart, FUNC(ay31015_device::write_tcp));
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// TODO: other output is divided down to 100 Hz
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_raw(15.741_MHz_XTAL, 990, 0, 800, 265, 0, 240); // 24x80, 10x10 character cell
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//screen.set_raw(22.896_MHz_XTAL, 1440, 0, 1188, 265, 0, 240); // 24x132, 9x10 character cell?
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screen.set_screen_update(FUNC(decmate2_state::screen_update));
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CRT9007(config, m_crtc, 15.741_MHz_XTAL / 10);
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m_crtc->set_character_width(10); // 9 in 132-column mode
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m_crtc->set_screen("screen");
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LK201(config, "keyboard").tx_handler().set(m_kbduart, FUNC(ay31015_device::write_si));
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rs232_port_device &com(RS232_PORT(config, "com", default_rs232_devices, nullptr));
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com.rxd_handler().set(m_mpscc, FUNC(upd7201_device::rxa_w));
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rs232_port_device &printer(RS232_PORT(config, "printer", default_rs232_devices, nullptr));
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printer.rxd_handler().set(m_prtuart, FUNC(ay31015_device::write_si)); // TODO: loopback control
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}
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void decmate2_state::pc238(machine_config &config)
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{
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pc278(config);
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config.device_remove("brg0");
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config.device_remove("brg1");
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config.device_remove("fdc:b0");
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config.device_remove("fdc:b1");
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clock_device &pclk(CLOCK(config, "pclk", 16_MHz_XTAL / 208)); // Generated on pin 65 of DC382
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pclk.signal_handler().set(m_kbduart, FUNC(ay31015_device::write_rcp));
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pclk.signal_handler().append(m_kbduart, FUNC(ay31015_device::write_tcp));
|
||||
pclk.signal_handler().append(m_prtuart, FUNC(ay31015_device::write_rcp));
|
||||
pclk.signal_handler().append(m_prtuart, FUNC(ay31015_device::write_tcp));
|
||||
|
||||
// TODO: COMCLK (generated on pin 39 of DC382, rate presumably programmable)
|
||||
|
||||
// DECmate III has no 15.741 MHz XTAL
|
||||
m_crtc->set_clock(22.896_MHz_XTAL / 15);
|
||||
subdevice<screen_device>("screen")->set_raw(22.896_MHz_XTAL * 2 / 3, 960, 0, 800, 265, 0, 240);
|
||||
}
|
||||
|
||||
ROM_START(decmate2)
|
||||
ROM_REGION16_BE(0x2000, "cprom", 0)
|
||||
//ROM_LOAD16_BYTE("23-399e2.e113", 0x0000, 0x0800, NO_DUMP) // 0000-3777, bits 0:7 (to be shifted)
|
||||
//ROM_LOAD16_BYTE("23-400e2.e114", 0x1000, 0x0800, NO_DUMP) // 4000-7777, bits 0:7 (to be shifted)
|
||||
//ROM_LOAD16_BYTE("23-401e2.e115", 0x0001, 0x0800, NO_DUMP) // 0000-3777 & 4000-7777, bits 8:11 (to be split up)
|
||||
ROM_SYSTEM_BIOS(0, "19h", "19H (2310)")
|
||||
ROMX_LOAD("23-390e2.e113", 0x0000, 0x0800, CRC(9b19451a) SHA1(ed26557f17f59ce05ca08b34a05a24a97388dfe0), ROM_BIOS(0) | ROM_SKIP(1))
|
||||
ROMX_LOAD("23-391e2.e114", 0x1000, 0x0800, CRC(3a09ada1) SHA1(3093bd926d49c2fd62a773e8019e3755aa165ae9), ROM_BIOS(0) | ROM_SKIP(1))
|
||||
ROMX_LOAD("23-392e2.e115", 0x0001, 0x0800, CRC(19901cb6) SHA1(82a642d2b5b56250611f69321d0251e27fa639fc), ROM_BIOS(0) | ROM_SKIP(1))
|
||||
ROM_SYSTEM_BIOS(1, "31z", "31Z (3732)") // Regenerated from source code listing
|
||||
ROMX_LOAD("23-358e2.e113", 0x0000, 0x0800, BAD_DUMP CRC(e6b9ab4d) SHA1(12533bab586b7bc753fae3ce1959bc5ced3905f5), ROM_BIOS(1) | ROM_SKIP(1))
|
||||
ROMX_LOAD("23-359e2.e114", 0x1000, 0x0800, BAD_DUMP CRC(3d1825b7) SHA1(753af9657eef1a284801c9765f4899563d3d9a20), ROM_BIOS(1) | ROM_SKIP(1))
|
||||
ROMX_LOAD("23-360e2.e115", 0x0001, 0x0800, BAD_DUMP CRC(ed8162e6) SHA1(4ab993c00a5afc6465153ca4f52faa76e02a0ef3), ROM_BIOS(1) | ROM_SKIP(1))
|
||||
|
||||
ROM_REGION(0x1000, "rxcpu", 0)
|
||||
ROM_LOAD("23-008m1.e27", 0x0000, 0x1000, CRC(fae4026b) SHA1(388e093d952ce1f6fcf2dcdab5b5099a6aafad0f))
|
||||
|
||||
ROM_REGION(0x100, "precomp", 0) // 256x4 bipolar ROM (only one bit used)
|
||||
ROM_LOAD("23-640a2.e13", 0x000, 0x100, NO_DUMP)
|
||||
|
||||
ROM_REGION(0x2000, "chargen", 0)
|
||||
ROM_LOAD("23-114e4.e173", 0x0000, 0x2000, NO_DUMP)
|
||||
ROM_END
|
||||
|
||||
ROM_START(decmate3)
|
||||
ROM_REGION16_BE(0x2000, "cprom", 0)
|
||||
ROM_LOAD16_BYTE("23-330e4.e33", 0x0000, 0x1000, CRC(4258e0d0) SHA1(09a2f5f25620b491aed87b3c6465fb0a4c4211ff))
|
||||
ROM_CONTINUE(0x0001, 0x1000)
|
||||
|
||||
ROM_REGION(0x1000, "rxcpu", 0)
|
||||
ROM_LOAD("23-008m1.e4", 0x0000, 0x1000, CRC(fae4026b) SHA1(388e093d952ce1f6fcf2dcdab5b5099a6aafad0f))
|
||||
|
||||
ROM_REGION(0x2000, "chargen", 0)
|
||||
ROM_LOAD("23-331e4.e42", 0x0000, 0x2000, CRC(dca00fae) SHA1(5beff80611149cbae3e91c813d302f09a82fc3dd))
|
||||
|
||||
// TODO: add NO_DUMP entry for PAL (23-097K5)
|
||||
ROM_END
|
||||
|
||||
COMP(1982, decmate2, 0, 0, pc278, decmate2, decmate2_state, init_pc278, "Digital Equipment Corporation", "DECmate II (PC278)", MACHINE_IS_SKELETON)
|
||||
COMP(1984, decmate3, 0, 0, pc238, decmate2, decmate2_state, init_pc238, "Digital Equipment Corporation", "DECmate III (PC238)", MACHINE_IS_SKELETON)
|
||||
@ -12047,6 +12047,10 @@ shackled // (c) 1986 Data East USA (US)
|
||||
srdarwin // (c) 1987 Data East Corporation (World)
|
||||
srdarwinj // (c) 1987 Data East Corporation (Japan)
|
||||
|
||||
@source:decmate2.cpp
|
||||
decmate2 //
|
||||
decmate3 //
|
||||
|
||||
@source:deco_ld.cpp
|
||||
begas // (c) 1983
|
||||
begas1 // (c) 1983
|
||||
|
||||
@ -225,6 +225,7 @@ dccons.cpp
|
||||
dcebridge.cpp
|
||||
dct11em.cpp
|
||||
debut.cpp
|
||||
decmate2.cpp
|
||||
decstation.cpp
|
||||
dectalk.cpp
|
||||
decwritr.cpp
|
||||
|
||||
Loading…
Reference in New Issue
Block a user