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author Sergey Svishchev <shattered@users.noreply.github.com>2017-01-22 00:18:56 +0300
committer Sergey Svishchev <shattered@users.noreply.github.com>2017-02-13 22:09:31 +0300
commit1837531d2d5523c2f6316d3805529189d3af7c75 (patch)
tree44ea8e691df1d2abea5aec7737f41f9278e50f68 /src/mame/drivers/ms0515.cpp
parent041f7bb54952193083f5bbf507c1585fcaf21504 (diff)
ms0515.cpp -- hook up keyboard and floppy, improve video emulation etc.
Diffstat (limited to 'src/mame/drivers/ms0515.cpp')
-rw-r--r--src/mame/drivers/ms0515.cpp503
1 files changed, 413 insertions, 90 deletions
diff --git a/src/mame/drivers/ms0515.cpp b/src/mame/drivers/ms0515.cpp
index 601a62afc2a..5fbfa4473bf 100644
--- a/src/mame/drivers/ms0515.cpp
+++ b/src/mame/drivers/ms0515.cpp
@@ -1,44 +1,117 @@
// license:BSD-3-Clause
-// copyright-holders:Miodrag Milanovic
+// copyright-holders:Miodrag Milanovic, Sergey Svishchev
/***************************************************************************
- Elektronika MS-0515
+ Elektronika MS 0515
- 06/08/2012 Skeleton driver.
+ To do:
+ - softlist
+ - sound
+ - 512K memory expansion
+ - ?? refresh rate change
+ - ?? parallel printer
+ - ?? cassette (only with Version A firmware)
+ - ?? port 177770
+
+ Docs:
+ - http://www.tis.kz/docs/MC-0515/mc0515-ed.rar schematics etc.
+ - http://www.tis.kz/docs/MC-0515/mc0515-to.rar user manual
+ - http://www.tis.kz/docs/MC-0515/hc4-to.rar technical manual
+ - http://www.tis.kz/docs/MC-0515/mc0515-po.rar diag manual
+ - http://www.tis.kz/docs/MC-0515/mc0515-osa.rar OS manual
****************************************************************************/
#include "emu.h"
+
+#include "bus/rs232/rs232.h"
#include "cpu/t11/t11.h"
-#include "machine/wd_fdc.h"
-#include "machine/ram.h"
+#include "formats/ms0515_dsk.h"
+#include "machine/clock.h"
+#include "machine/i8251.h"
#include "machine/i8255.h"
+#include "machine/ms7004.h"
+#include "machine/pit8253.h"
+#include "machine/ram.h"
+#include "machine/wd_fdc.h"
+#include "sound/speaker.h"
+#include "sound/wave.h"
+
+#include "ms0515.lh"
+
+
+#define LOG_GENERAL (1U << 0)
+#define LOG_BANK (1U << 1)
+#define LOG_SYSREG (1U << 2)
+
+//#define VERBOSE (LOG_GENERAL | LOG_BANK | LOG_SYSREG)
+//#define LOG_OUTPUT_FUNC printf
+#include "logmacro.h"
+
+#define LOGBANK(format, ...) LOGMASKED(LOG_BANK, "%11.6f at %s: " format, machine().time().as_double(), machine().describe_context(), __VA_ARGS__)
+#define LOGSYSREG(format, ...) LOGMASKED(LOG_SYSREG, "%11.6f at %s: " format, machine().time().as_double(), machine().describe_context(), __VA_ARGS__)
+
class ms0515_state : public driver_device
{
public:
ms0515_state(const machine_config &mconfig, device_type type, const char *tag)
- : driver_device(mconfig, type, tag),
- m_maincpu(*this, "maincpu"),
- m_ram(*this, RAM_TAG),
- m_floppy(*this, "vg93:0:525qd")
+ : driver_device(mconfig, type, tag)
+ , m_maincpu(*this, "maincpu")
+ , m_ram(*this, RAM_TAG)
+ , m_fdc(*this, "vg93")
+ , m_floppy0(*this, "vg93:0:525qd")
+ , m_floppy1(*this, "vg93:1:525qd")
+ , m_i8251line(*this, "i8251line")
+ , m_rs232(*this, "rs232")
+ , m_i8251kbd(*this, "i8251kbd")
+ , m_ms7004(*this, "ms7004")
{ }
required_device<cpu_device> m_maincpu;
required_device<ram_device> m_ram;
- required_device<floppy_image_device> m_floppy;
-
- DECLARE_WRITE16_MEMBER(ms0515_bank_w);
- DECLARE_WRITE8_MEMBER(ms0515_sys_w);
+ required_device<kr1818vg93_t> m_fdc;
+ required_device<floppy_image_device> m_floppy0;
+ required_device<floppy_image_device> m_floppy1;
+ required_device<i8251_device> m_i8251line;
+ required_device<rs232_port_device> m_rs232;
+ required_device<i8251_device> m_i8251kbd;
+ required_device<ms7004_device> m_ms7004;
virtual void machine_reset() override;
- uint8_t *m_video_ram;
- uint8_t m_sysreg;
- int m_blink;
DECLARE_PALETTE_INIT(ms0515);
uint32_t screen_update_ms0515(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+ void screen_eof(screen_device &screen, bool state);
+
+ DECLARE_WRITE16_MEMBER(ms0515_bank_w);
+
+ DECLARE_READ16_MEMBER(ms0515_halt_r);
+ DECLARE_WRITE16_MEMBER(ms0515_halt_w);
+
+ DECLARE_WRITE8_MEMBER(ms0515_porta_w);
+ DECLARE_READ8_MEMBER(ms0515_portb_r);
DECLARE_WRITE8_MEMBER(ms0515_portc_w);
+
+ DECLARE_WRITE_LINE_MEMBER(write_keyboard_clock);
+ DECLARE_WRITE_LINE_MEMBER(write_line_clock);
+
+ DECLARE_FLOPPY_FORMATS(floppy_formats);
+
+ void irq_encoder(int irq, int state);
+ DECLARE_WRITE_LINE_MEMBER(irq2_w);
+ DECLARE_WRITE_LINE_MEMBER(irq5_w);
+ DECLARE_WRITE_LINE_MEMBER(irq8_w);
+ DECLARE_WRITE_LINE_MEMBER(irq9_w);
+ DECLARE_WRITE_LINE_MEMBER(irq11_w);
+
+private:
+ uint8_t *m_video_ram;
+ uint8_t m_sysrega, m_sysregb, m_sysregc;
+ uint16_t m_bankreg, m_haltreg;
+ uint16_t m_irqs;
+ int m_blink;
+ floppy_image_device *m_floppy;
};
static ADDRESS_MAP_START(ms0515_mem, AS_PROGRAM, 16, ms0515_state)
@@ -51,73 +124,206 @@ static ADDRESS_MAP_START(ms0515_mem, AS_PROGRAM, 16, ms0515_state)
AM_RANGE(0120000, 0137777) AM_RAMBANK("bank5") // RAM
AM_RANGE(0140000, 0157777) AM_RAMBANK("bank6") // RAM
- AM_RANGE(0160000, 0177377) AM_ROM
+ AM_RANGE(0160000, 0177377) AM_ROM AM_WRITENOP
AM_RANGE(0177400, 0177437) AM_WRITE(ms0515_bank_w) // Register for RAM expansion
- //AM_RANGE(0177440, 0177441) // read data
- //AM_RANGE(0177460, 0177461) // write data Elektronika MS-7004 Keyboard
- //AM_RANGE(0177442, 0177443) // read
- //AM_RANGE(0177462, 0177463) // write
+ AM_RANGE(0177440, 0177441) AM_DEVREAD8("i8251kbd", i8251_device, data_r, 0x00ff)
+ AM_RANGE(0177442, 0177443) AM_DEVREADWRITE8("i8251kbd", i8251_device, status_r, control_w, 0x00ff)
+ AM_RANGE(0177460, 0177461) AM_DEVWRITE8("i8251kbd", i8251_device, data_w, 0x00ff)
+ AM_RANGE(0177462, 0177463) AM_DEVWRITE8("i8251kbd", i8251_device, control_w, 0x00ff)
- //AM_RANGE(0177500, 0177501)
- //AM_RANGE(0177502, 0177503)
- //AM_RANGE(0177504, 0177505) // i8253
- //AM_RANGE(0177506, 0177507)
+ AM_RANGE(0177500, 0177507) AM_DEVREADWRITE8("pit8253", pit8253_device, read, write, 0x00ff)
+ AM_RANGE(0177520, 0177527) AM_DEVWRITE8("pit8253", pit8253_device, write, 0x00ff)
- //AM_RANGE(0177540, 0177541)
- //AM_RANGE(0177542, 0177543)
- //AM_RANGE(0177544, 0177545) // i8255 for MS-7007 Keyboard
- //AM_RANGE(0177546, 0177547)
+ AM_RANGE(0177540, 0177547) AM_NOP
+// AM_RANGE(0177540, 0177541)
+// AM_RANGE(0177542, 0177543)
+// AM_RANGE(0177544, 0177545) // i8255 for MS-7007 Keyboard
+// AM_RANGE(0177546, 0177547)
AM_RANGE(0177600, 0177607) AM_DEVREADWRITE8("ppi8255_1", i8255_device, read, write, 0x00ff)
- AM_RANGE(0177640, 0177641) AM_DEVREADWRITE8("vg93", fd1793_t, status_r, cmd_w,0x00ff)
- AM_RANGE(0177642, 0177643) AM_DEVREADWRITE8("vg93", fd1793_t, track_r, track_w,0x00ff)
- AM_RANGE(0177644, 0177645) AM_DEVREADWRITE8("vg93", fd1793_t, sector_r, sector_w,0x00ff)
- AM_RANGE(0177646, 0177647) AM_DEVREADWRITE8("vg93", fd1793_t, data_r, data_w,0x00ff)
+ AM_RANGE(0177640, 0177641) AM_DEVREADWRITE8("vg93", kr1818vg93_t, status_r, cmd_w, 0x00ff)
+ AM_RANGE(0177642, 0177643) AM_DEVREADWRITE8("vg93", kr1818vg93_t, track_r, track_w, 0x00ff)
+ AM_RANGE(0177644, 0177645) AM_DEVREADWRITE8("vg93", kr1818vg93_t, sector_r, sector_w, 0x00ff)
+ AM_RANGE(0177646, 0177647) AM_DEVREADWRITE8("vg93", kr1818vg93_t, data_r, data_w, 0x00ff)
- //AM_RANGE(0177700, 0177701) // read data
- //AM_RANGE(0177720, 0177721) // write data // protocol S2
- //AM_RANGE(0177702, 0177703) // read status
- //AM_RANGE(0177722, 0177723) // write control
+ AM_RANGE(0177700, 0177701) AM_DEVREAD8("i8251line", i8251_device, data_r, 0x00ff)
+ AM_RANGE(0177702, 0177703) AM_DEVREADWRITE8("i8251line", i8251_device, status_r, control_w, 0x00ff)
+ AM_RANGE(0177720, 0177721) AM_DEVWRITE8("i8251line", i8251_device, data_w, 0x00ff)
+ AM_RANGE(0177722, 0177723) AM_DEVWRITE8("i8251line", i8251_device, control_w, 0x00ff)
- //AM_RANGE(0177770, 0177771) // read/write
+ AM_RANGE(0177770, 0177771) AM_READWRITE(ms0515_halt_r, ms0515_halt_w) // read/write -- halt and system timer
ADDRESS_MAP_END
+/*
+ * (page 15-16)
+ *
+ * 6-0 RAM banking
+ * 7 VRAM access enable
+ * 8 vblank IRQ line (1 -- assert)
+ * 9 timer IRQ enable (1 -- enable)
+ * 11-10 VRAM banking
+ * 12 parallel port STROBE signal
+ * 13 parallel port ... signal
+ * 14-15 unused
+ */
WRITE16_MEMBER(ms0515_state::ms0515_bank_w)
{
uint8_t *ram = m_ram->pointer();
- membank("bank0")->set_base(ram + 0000000 + BIT(data,0) * 0160000);
- membank("bank1")->set_base(ram + 0020000 + BIT(data,1) * 0160000);
- membank("bank2")->set_base(ram + 0040000 + BIT(data,2) * 0160000);
- membank("bank3")->set_base(ram + 0060000 + BIT(data,3) * 0160000);
- membank("bank4")->set_base(ram + 0100000 + BIT(data,4) * 0160000);
- membank("bank5")->set_base(ram + 0120000 + BIT(data,5) * 0160000);
- membank("bank6")->set_base(ram + 0140000 + BIT(data,6) * 0160000);
- if (BIT(data,7)) {
- switch((data >> 10) % 3)
+
+ LOGBANK("Bank <- %04x & %04x (vblank %d timer %d)\n", data, mem_mask, BIT(data, 8), BIT(data, 9));
+
+ if (BIT(data ^ m_bankreg, 8)) irq2_w(BIT(data, 8) ? ASSERT_LINE : CLEAR_LINE);
+
+ m_bankreg = data;
+
+ membank("bank0")->set_base(ram + 0000000 + BIT(data, 0) * 0160000);
+ membank("bank1")->set_base(ram + 0020000 + BIT(data, 1) * 0160000);
+ membank("bank2")->set_base(ram + 0040000 + BIT(data, 2) * 0160000);
+ membank("bank3")->set_base(ram + 0060000 + BIT(data, 3) * 0160000);
+ membank("bank4")->set_base(ram + 0100000 + BIT(data, 4) * 0160000);
+ membank("bank5")->set_base(ram + 0120000 + BIT(data, 5) * 0160000);
+ membank("bank6")->set_base(ram + 0140000 + BIT(data, 6) * 0160000);
+
+ if (BIT(data, 7))
+ {
+ switch ((data >> 10) & 3)
{
- case 0: // 000000 - 037777
- membank("bank0")->set_base(ram + 0000000 + 0340000);
- membank("bank1")->set_base(ram + 0020000 + 0340000);
- break;
- case 1: // 040000 - 077777
- membank("bank2")->set_base(ram + 0000000 + 0340000);
- membank("bank3")->set_base(ram + 0020000 + 0340000);
- break;
- case 2:
- case 3: // 100000 - 137777
- membank("bank4")->set_base(ram + 0000000 + 0340000);
- membank("bank5")->set_base(ram + 0020000 + 0340000);
- break;
+ case 0: // 000000 - 037777
+ membank("bank0")->set_base(ram + 0000000 + 0340000);
+ membank("bank1")->set_base(ram + 0020000 + 0340000);
+ break;
+ case 1: // 040000 - 077777
+ membank("bank2")->set_base(ram + 0000000 + 0340000);
+ membank("bank3")->set_base(ram + 0020000 + 0340000);
+ break;
+ case 2:
+ case 3: // 100000 - 137777
+ membank("bank4")->set_base(ram + 0000000 + 0340000);
+ membank("bank5")->set_base(ram + 0020000 + 0340000);
+ break;
}
}
}
-WRITE8_MEMBER(ms0515_state::ms0515_sys_w)
+READ16_MEMBER(ms0515_state::ms0515_halt_r)
+{
+ return m_haltreg;
+}
+
+WRITE16_MEMBER(ms0515_state::ms0515_halt_w)
{
- m_sysreg = data;
+ COMBINE_DATA(&m_haltreg);
+}
+
+/*
+ * b7 -- ROM bank
+ * b6 -- cassette data out
+ * b5 -- LED VD16
+ * b4 -- LED VD9
+ * b3 -- floppy side select (?? 1 -- top)
+ * b2 -- floppy motor (0 -- on)
+ * b1-0 -- floppy drive select
+ *
+ * DZ0 = drive 0 side 0 (bottom)
+ * DZ1 = drive 1 side 0 (bottom)
+ * DZ2 = drive 0 side 1 (top)
+ * DZ3 = drive 1 side 1 (top)
+ *
+ * MZ1 = drive 1 side 0-1
+ */
+WRITE8_MEMBER(ms0515_state::ms0515_porta_w)
+{
+ LOGSYSREG("Sysreg A <- %02x\n", data);
+
+ output().set_value("led16", BIT(data, 5));
+ output().set_value("led9", BIT(data, 4));
+
+ switch (data & 3)
+ {
+ case 0:
+ m_floppy = m_floppy0;
+ break;
+
+ case 1:
+ m_floppy = m_floppy1;
+ break;
+
+ default:
+ m_floppy = nullptr;
+ break;
+ }
+
+ if (m_floppy)
+ {
+ m_fdc->set_floppy(m_floppy);
+ m_floppy->ss_w(!BIT(data, 3));
+ m_floppy->mon_w(BIT(data, 2));
+ }
+ else
+ {
+ m_floppy0->mon_w(1);
+ m_floppy1->mon_w(1);
+ }
+
+ m_sysrega = data;
+}
+
+/*
+ * b7 -- cassette data in
+ * b6-5 -- reserved for IRPR-M (parallel) port
+ * b4-3 -- DIP switches on video board, 00 -- 50 Hz, 01 -- 60 Hz, 1x -- 72 Hz
+ * b2 -- floppy ready signal (0 -- ready)
+ * b1 -- floppy drq (1 -- ready)
+ * b0 -- floppy intrq (0 -- ready)
+ */
+READ8_MEMBER(ms0515_state::ms0515_portb_r)
+{
+ uint8_t data;
+
+ data = m_fdc->intrq_r();
+ data |= m_fdc->drq_r() << 1;
+
+ if (m_floppy)
+ {
+ data |= !m_floppy->ready_r() << 2;
+ }
+
+ LOGSYSREG("Sysreg B == %02x\n", data);
+
+ return data;
+}
+
+
+/*
+ * b7 -- sound out ??
+ * b6 -- sound out gate
+ * b5 -- sound ??
+ * b4 -- LED VD17
+ * b3 -- video resolution, 0: 320x200, 1: 640x200
+ * b2-0 -- overscan color
+ */
+WRITE8_MEMBER(ms0515_state::ms0515_portc_w)
+{
+ LOGSYSREG("Sysreg C <- %02x\n", data);
+
+ output().set_value("led17", BIT(data, 4));
+
+ m_sysregc = data;
+}
+
+WRITE_LINE_MEMBER(ms0515_state::write_keyboard_clock)
+{
+ m_i8251kbd->write_txc(state);
+ m_i8251kbd->write_rxc(state);
+}
+
+WRITE_LINE_MEMBER(ms0515_state::write_line_clock)
+{
+ m_i8251line->write_txc(state);
+ m_i8251line->write_rxc(state);
}
void ms0515_state::machine_reset()
@@ -127,25 +333,37 @@ void ms0515_state::machine_reset()
m_video_ram = ram + 0000000 + 0340000;
m_blink = 0;
-
- m_floppy->mon_w(0); // turn it on
+ m_haltreg = 0;
+ m_irqs = 0;
+ m_floppy = nullptr;
}
/* Input ports */
static INPUT_PORTS_START( ms0515 )
+ PORT_START("SA1")
+ PORT_DIPNAME(0x03, 0x00, "Refresh rate") PORT_DIPLOCATION("E:3,4")
+ PORT_DIPSETTING(0x00, "50 Hz")
+ PORT_DIPSETTING(0x01, "60 Hz")
+ PORT_DIPSETTING(0x02, "72 Hz")
INPUT_PORTS_END
-// disk format: 80 tracks, 1 head, 10 sectors, 512 bytes sector length, first sector id 0
+FLOPPY_FORMATS_MEMBER( ms0515_state::floppy_formats )
+ FLOPPY_MS0515_FORMAT
+FLOPPY_FORMATS_END
static SLOT_INTERFACE_START( ms0515_floppies )
- SLOT_INTERFACE( "525qd", FLOPPY_525_QD ) // 720 KB
+ SLOT_INTERFACE( "525qd", FLOPPY_525_QD )
SLOT_INTERFACE_END
uint32_t ms0515_state::screen_update_ms0515(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
int y, x, b;
int addr = 0;
- if (BIT(m_sysreg,3)) {
+
+ if (BIT(m_sysregc, 3))
+ {
+ uint8_t fg = m_sysregc & 7;
+ uint8_t bg = fg ^ 7;
for (y = 0; y < 200; y++)
{
int horpos = 0;
@@ -156,11 +374,13 @@ uint32_t ms0515_state::screen_update_ms0515(screen_device &screen, bitmap_ind16
for (b = 0; b < 16; b++)
{
// In lower res mode we will just double pixels
- bitmap.pix16(y, horpos++) = ((code >> (15-b)) & 0x01) ? 0 : 7;
+ bitmap.pix16(y, horpos++) = ((code >> (15 - b)) & 0x01) ? bg : fg;
}
}
}
- } else {
+ }
+ else
+ {
for (y = 0; y < 200; y++)
{
int horpos = 0;
@@ -168,18 +388,20 @@ uint32_t ms0515_state::screen_update_ms0515(screen_device &screen, bitmap_ind16
{
uint8_t code = m_video_ram[addr++];
uint8_t attr = m_video_ram[addr++];
- uint8_t fg = (attr & 7) + BIT(attr,6)*8;
- uint8_t bg = ((attr >> 3) & 7) + BIT(attr,6)*8;
- if (BIT(attr,7) && (m_blink == 20)) {
+ uint8_t fg = (attr & 7) + BIT(attr, 6) * 8;
+ uint8_t bg = ((attr >> 3) & 7) + BIT(attr, 6) * 8;
+ if (BIT(attr, 7) && (m_blink == 20))
+ {
uint8_t tmp = fg;
- fg = bg; bg = tmp;
+ fg = bg;
+ bg = tmp;
m_blink = -1;
}
for (b = 0; b < 8; b++)
{
// In lower res mode we will just double pixels
- bitmap.pix16(y, horpos++) = ((code >> (7-b)) & 0x01) ? fg : bg;
- bitmap.pix16(y, horpos++) = ((code >> (7-b)) & 0x01) ? fg : bg;
+ bitmap.pix16(y, horpos++) = ((code >> (7 - b)) & 0x01) ? fg : bg;
+ bitmap.pix16(y, horpos++) = ((code >> (7 - b)) & 0x01) ? fg : bg;
}
}
}
@@ -188,6 +410,13 @@ uint32_t ms0515_state::screen_update_ms0515(screen_device &screen, bitmap_ind16
return 0;
}
+void ms0515_state::screen_eof(screen_device &screen, bool state)
+{
+// irq2_w(state ? ASSERT_LINE : CLEAR_LINE);
+ if (BIT(m_bankreg, 9))
+ irq11_w(state ? ASSERT_LINE : CLEAR_LINE);
+}
+
PALETTE_INIT_MEMBER(ms0515_state, ms0515)
{
palette.set_pen_color(0, rgb_t(0, 0, 0));
@@ -209,36 +438,125 @@ PALETTE_INIT_MEMBER(ms0515_state, ms0515)
palette.set_pen_color(15, rgb_t(255, 255, 255));
}
-WRITE8_MEMBER(ms0515_state::ms0515_portc_w)
+// from vt240.cpp
+void ms0515_state::irq_encoder(int irq, int state)
+{
+ if (state == ASSERT_LINE)
+ m_irqs |= (1 << irq);
+ else
+ m_irqs &= ~(1 << irq);
+
+ int i;
+ for (i = 15; i > 0; i--)
+ {
+ if (m_irqs & (1 << i)) break;
+ }
+ m_maincpu->set_input_line(3, (i & 8) ? ASSERT_LINE : CLEAR_LINE);
+ m_maincpu->set_input_line(2, (i & 4) ? ASSERT_LINE : CLEAR_LINE);
+ m_maincpu->set_input_line(1, (i & 2) ? ASSERT_LINE : CLEAR_LINE);
+ m_maincpu->set_input_line(0, (i & 1) ? ASSERT_LINE : CLEAR_LINE);
+}
+
+/*
+ * interrupts (p. 21-22)
+ *
+ * IRQ CPx Pri Vec Device
+ * --- --- --- --- ------
+ * 11 LHLL 6 100 timer
+ * 9 LHHL 6 110 serial RX
+ * 8 LHHH 6 114 serial TX
+ * 5 HLHL 5 130 7004 keyboard
+ * 3 HHLL 4 060 7007 keyboard
+ * 2 HHLH 4 064 vblank
+ */
+
+WRITE_LINE_MEMBER(ms0515_state::irq2_w)
+{
+ irq_encoder(2, state);
+}
+
+WRITE_LINE_MEMBER(ms0515_state::irq5_w)
{
- m_sysreg = data;
+ irq_encoder(5, state);
+}
+
+WRITE_LINE_MEMBER(ms0515_state::irq8_w)
+{
+ irq_encoder(8, state);
+}
+
+WRITE_LINE_MEMBER(ms0515_state::irq9_w)
+{
+ irq_encoder(9, state);
+}
+
+WRITE_LINE_MEMBER(ms0515_state::irq11_w)
+{
+ irq_encoder(11, state);
}
static MACHINE_CONFIG_START( ms0515, ms0515_state )
/* basic machine hardware */
- MCFG_CPU_ADD("maincpu",T11, XTAL_4MHz) // Need proper CPU here
+ MCFG_CPU_ADD("maincpu", T11, XTAL_4MHz) // actual CPU is T11 clone, KR1807VM1
MCFG_T11_INITIAL_MODE(0xf2ff)
MCFG_CPU_PROGRAM_MAP(ms0515_mem)
- MCFG_DEVICE_ADD("vg93", FD1793, 1000000)
- MCFG_FLOPPY_DRIVE_ADD("vg93:0", ms0515_floppies, "525qd", floppy_image_device::default_floppy_formats)
-
- /* video hardware */
+ /* video hardware -- 50 Hz refresh rate */
MCFG_SCREEN_ADD("screen", RASTER)
- MCFG_SCREEN_REFRESH_RATE(50)
- MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
- MCFG_SCREEN_SIZE(640, 200)
- MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 200-1)
+ MCFG_SCREEN_RAW_PARAMS( XTAL_15MHz, 958,0,640, 313,0,200 )
MCFG_SCREEN_UPDATE_DRIVER(ms0515_state, screen_update_ms0515)
+ MCFG_SCREEN_VBLANK_DRIVER(ms0515_state, screen_eof)
MCFG_SCREEN_PALETTE("palette")
+ MCFG_DEFAULT_LAYOUT(layout_ms0515)
MCFG_PALETTE_ADD("palette", 16)
MCFG_PALETTE_INIT_OWNER(ms0515_state, ms0515)
+ MCFG_DEVICE_ADD("vg93", KR1818VG93, 1000000)
+ MCFG_FLOPPY_DRIVE_ADD("vg93:0", ms0515_floppies, "525qd", ms0515_state::floppy_formats)
+ MCFG_FLOPPY_DRIVE_SOUND(true)
+ MCFG_FLOPPY_DRIVE_ADD("vg93:1", ms0515_floppies, "525qd", ms0515_state::floppy_formats)
+ MCFG_FLOPPY_DRIVE_SOUND(true)
+
MCFG_DEVICE_ADD("ppi8255_1", I8255, 0)
+ MCFG_I8255_OUT_PORTA_CB(WRITE8(ms0515_state, ms0515_porta_w))
+ MCFG_I8255_IN_PORTB_CB(READ8(ms0515_state, ms0515_portb_r))
MCFG_I8255_OUT_PORTC_CB(WRITE8(ms0515_state, ms0515_portc_w))
- //MCFG_DEVICE_ADD("ppi8255_2", I8255, 0)
+ // serial connection to printer
+ MCFG_DEVICE_ADD( "i8251line", I8251, 0)
+ MCFG_I8251_TXD_HANDLER(DEVWRITELINE("rs232", rs232_port_device, write_txd))
+ MCFG_I8251_RXRDY_HANDLER(WRITELINE(ms0515_state, irq9_w))
+ MCFG_I8251_TXRDY_HANDLER(WRITELINE(ms0515_state, irq8_w))
+
+ MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, nullptr)
+ MCFG_RS232_RXD_HANDLER(DEVWRITELINE("i8251line", i8251_device, write_rxd))
+ MCFG_RS232_CTS_HANDLER(DEVWRITELINE("i8251line", i8251_device, write_cts))
+ MCFG_RS232_DSR_HANDLER(DEVWRITELINE("i8251line", i8251_device, write_dsr))
+
+// MCFG_DEVICE_ADD("line_clock", CLOCK, 4800*16) // 8251 is set to /16 on the clock input
+// MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(ms0515_state, write_line_clock))
+
+ // serial connection to MS7004 keyboard
+ MCFG_DEVICE_ADD("i8251kbd", I8251, 0)
+ MCFG_I8251_RXRDY_HANDLER(WRITELINE(ms0515_state, irq5_w))
+ MCFG_I8251_TXD_HANDLER(DEVWRITELINE("ms7004", ms7004_device, write_rxd))
+
+ MCFG_DEVICE_ADD("ms7004", MS7004, 0)
+ MCFG_MS7004_TX_HANDLER(DEVWRITELINE("i8251kbd", i8251_device, write_rxd))
+ MCFG_MS7004_RTS_HANDLER(DEVWRITELINE("i8251kbd", i8251_device, write_cts))
+
+ // baud rate is supposed to be 4800 but keyboard is slightly faster
+ MCFG_DEVICE_ADD("keyboard_clock", CLOCK, 4960*16)
+ MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(ms0515_state, write_keyboard_clock))
+
+ MCFG_DEVICE_ADD("pit8253", PIT8253, 0)
+ MCFG_PIT8253_CLK0(XTAL_2MHz)
+// MCFG_PIT8253_OUT0_HANDLER(WRITELINE(ms0515_state, write_keyboard_clock))
+ MCFG_PIT8253_CLK1(XTAL_2MHz)
+ MCFG_PIT8253_OUT0_HANDLER(WRITELINE(ms0515_state, write_line_clock))
+ MCFG_PIT8253_CLK2(XTAL_2MHz)
+// MCFG_PIT8253_OUT2_HANDLER(WRITELINE())
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
@@ -248,11 +566,16 @@ MACHINE_CONFIG_END
/* ROM definition */
ROM_START( ms0515 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
- ROM_LOAD16_BYTE( "7004l.bin", 0xc000, 0x2000, CRC(b08b3b73) SHA1(c12fd4672598cdf499656dcbb4118d787769d589))
- ROM_LOAD16_BYTE( "7004h.bin", 0xc001, 0x2000, CRC(515dcf99) SHA1(edd34300fd642c89ce321321e1b12493cd16b7a5))
+ ROM_DEFAULT_BIOS( "b" )
+ ROM_SYSTEM_BIOS( 0, "a", "Version A" )
+ ROMX_LOAD( "7004l.bin", 0xc000, 0x2000, CRC(b08b3b73) SHA1(c12fd4672598cdf499656dcbb4118d787769d589), ROM_SKIP(1) | ROM_BIOS(1))
+ ROMX_LOAD( "7004h.bin", 0xc001, 0x2000, CRC(515dcf99) SHA1(edd34300fd642c89ce321321e1b12493cd16b7a5), ROM_SKIP(1) | ROM_BIOS(1))
+ ROM_SYSTEM_BIOS( 1, "b", "Version B" )
+ ROMX_LOAD( "0515L.rf4", 0xc000, 0x2000, CRC(85b608a4) SHA1(5b1bb0586d8f7a8a21de69200b08e0b28a318999), ROM_SKIP(1) | ROM_BIOS(2))
+ ROMX_LOAD( "0515H.rf4", 0xc001, 0x2000, CRC(e3ff6da9) SHA1(3febccf40abc2e3ca7db3f6f3884be117722dd8b), ROM_SKIP(1) | ROM_BIOS(2))
ROM_END
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */
-COMP( ????, ms0515, 0, 0, ms0515, ms0515, driver_device, 0, "Elektronika", "MS-0515", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)
+COMP( 1990, ms0515, 0, 0, ms0515, ms0515, driver_device, 0, "Elektronika", "MS 0515", MACHINE_NO_SOUND)