Skip to content

rt1715: support plain floppy images, update keyboard mapping. #14220

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 26, 2025
Merged

rt1715: support plain floppy images, update keyboard mapping. #14220

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
31 changes: 23 additions & 8 deletions src/mame/robotron/rt1715.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@

#include "bus/rs232/rs232.h"
#include "cpu/z80/z80.h"
#include "formats/pk8020_dsk.h"
#include "imagedev/floppy.h"
#include "machine/keyboard.h"
#include "machine/ram.h"
Expand Down Expand Up @@ -107,6 +108,8 @@ class rt1715_state : public driver_device
DECLARE_MACHINE_START(rt1715w);
DECLARE_MACHINE_RESET(rt1715w);

static void floppy_formats(format_registration &fr);

required_device<z80_device> m_maincpu;
required_device<ram_device> m_ram;
required_device<z80sio_device> m_sio0;
Expand Down Expand Up @@ -145,8 +148,8 @@ void rt1715_state::rt1715w_floppy_motor(uint8_t data)
{
LOG("%s: rt1715w_floppy_motor %02x\n", machine().describe_context(), data);

if (m_floppy[0]->get_device()) m_floppy[0]->get_device()->mon_w(data & 0x80 ? 1 : 0);
if (m_floppy[1]->get_device()) m_floppy[1]->get_device()->mon_w(data & 0x08 ? 1 : 0);
if (m_floppy[0]->get_device()) m_floppy[0]->get_device()->mon_w(BIT(data, 7));
if (m_floppy[1]->get_device()) m_floppy[1]->get_device()->mon_w(BIT(data, 3));
}

void rt1715_state::rt1715w_krfd_w(uint8_t data)
Expand Down Expand Up @@ -607,7 +610,7 @@ static INPUT_PORTS_START( k7658 )
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR(']') PORT_CHAR('}')
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_INSERT) PORT_CHAR(UCHAR_MAMEKEY(INSERT))
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t')
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))

PORT_START("row_60")
// D07 A17 E07 B17 B07 C07 D17 C17
Expand Down Expand Up @@ -683,7 +686,7 @@ static INPUT_PORTS_START( k7658 )
PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LEFT) PORT_CHAR(UCHAR_MAMEKEY(LEFT))
PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_UP) PORT_CHAR(UCHAR_MAMEKEY(UP))
PORT_BIT( 0x40, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TAB) PORT_CHAR('\t') // FIXME
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD ) PORT_NAME("linker Rand")
INPUT_PORTS_END

Expand Down Expand Up @@ -713,10 +716,17 @@ static const z80_daisy_config rt1715_daisy_chain[] =

static const z80_daisy_config rt1715w_daisy_chain[] =
{
{ "ctc2" },
{ "sio0" },
{ nullptr }
};

void rt1715_state::floppy_formats(format_registration &fr)
{
fr.add_mfm_containers();
fr.add(FLOPPY_PK8020_FORMAT);
}

static void rt1715w_floppies(device_slot_interface &device)
{
device.option_add("525qd", FLOPPY_525_QD);
Expand All @@ -741,7 +751,7 @@ void rt1715_state::rt1715(machine_config &config)
/* video hardware */
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_screen_update("i8275", FUNC(i8275_device::screen_update));
m_screen->set_raw(13.824_MHz_XTAL, 864, 0, 624, 320, 0, 300); // ?
m_screen->set_raw(13.824_MHz_XTAL, 864, 0, 640, 320, 0, 288);

GFXDECODE(config, "gfxdecode", "palette", gfx_rt1715);
PALETTE(config, "palette", FUNC(rt1715_state::rt1715_palette), 3);
Expand All @@ -758,6 +768,7 @@ void rt1715_state::rt1715(machine_config &config)
m_sio0->out_dtrb_callback().set(m_rs232, FUNC(rs232_port_device::write_dtr));
m_sio0->out_rtsb_callback().set(m_rs232, FUNC(rs232_port_device::write_rts));

// 1715W: A5, IEO output NC
Z80CTC(config, m_ctc0, 15.9744_MHz_XTAL / 4);
m_ctc0->zc_callback<0>().set(m_sio0, FUNC(z80sio_device::txca_w));
m_ctc0->zc_callback<2>().set(m_sio0, FUNC(z80sio_device::rxtxcb_w));
Expand Down Expand Up @@ -798,11 +809,11 @@ void rt1715_state::rt1715w(machine_config &config)

m_crtc->drq_wr_callback().set(FUNC(rt1715_state::crtc_drq_w));

// operates in polled mode
// FIXME interrupt output NC, but vector 0x14 set to ISR 0xf6bc, find source
I8272A(config, m_fdc, 8'000'000 / 4, false);
m_fdc->drq_wr_callback().set(m_dma, FUNC(z80dma_device::rdy_w)).invert();
FLOPPY_CONNECTOR(config, "i8272:0", rt1715w_floppies, "525qd", floppy_image_device::default_mfm_floppy_formats);
FLOPPY_CONNECTOR(config, "i8272:1", rt1715w_floppies, "525qd", floppy_image_device::default_mfm_floppy_formats);
FLOPPY_CONNECTOR(config, "i8272:0", rt1715w_floppies, "525qd", rt1715_state::floppy_formats);
FLOPPY_CONNECTOR(config, "i8272:1", rt1715w_floppies, "525qd", rt1715_state::floppy_formats);

Z80DMA(config, m_dma, 15.9744_MHz_XTAL / 4);
m_dma->out_busreq_callback().set_inputline(m_maincpu, Z80_INPUT_LINE_BUSRQ);
Expand All @@ -812,7 +823,11 @@ void rt1715_state::rt1715w(machine_config &config)
m_dma->in_iorq_callback().set(FUNC(rt1715_state::io_read_byte));
m_dma->out_iorq_callback().set(FUNC(rt1715_state::io_write_byte));

// A4
Z80CTC(config, m_ctc2, 15.9744_MHz_XTAL / 4);
m_ctc2->intr_callback().set_inputline(m_maincpu, INPUT_LINE_IRQ0);
m_ctc2->zc_callback<1>().set(m_ctc2, FUNC(z80ctc_device::trg2));
// trg3 connected to /RQ signal

m_ram->set_default_size("256K");
RAM(config, m_videoram).set_default_size("4K").set_default_value(0x00);
Expand Down
Loading