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bus/spectrum/lprint.cpp add "Hilderbay / Kempston Centronics S" interace

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This commit is contained in:
MetalliC 2020-07-26 18:16:45 +03:00
parent 2e6ae76b40
commit 5dbfed58e1
3 changed files with 98 additions and 2 deletions
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1
src/devices/bus/spectrum/exp.cpp
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@ -200,6 +200,7 @@ void spectrum_expansion_devices(device_slot_interface &device)
device.option_add("fuller", SPECTRUM_FULLER);
device.option_add("kempjoy", SPECTRUM_KEMPJOY);
device.option_add("kempdisc", SPECTRUM_KEMPDISC);
device.option_add("kempcentrs", SPECTRUM_KEMPCENTRS);
device.option_add("kempcentref", SPECTRUM_KEMPCENTREF);
device.option_add("kempcentreu", SPECTRUM_KEMPCENTREU);
device.option_add("lprint", SPECTRUM_LPRINT);

71
src/devices/bus/spectrum/lprint.cpp
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@ -11,8 +11,9 @@
(c) 1984 Euroelectronics (UK)
Centronics and RS232 interface, most common printer interface for ZX-Spectrum.
(TODO) Kempston Centronics S Interface
(c) 1983 Kempston Micro Electronics Ltd (UK)
Hilderbay Interface (c) 1983 Hilderbay Ltd (UK)
AKA
Kempston Centronics S Interface (c) 1983 Kempston Micro Electronics Ltd (UK)
ROM-less device, require printer driver to be loaded from tape.
Kempston Centronics E Interface
@ -34,6 +35,7 @@
DEFINE_DEVICE_TYPE(SPECTRUM_LPRINT, spectrum_lprint_device, "spectrum_lprint", "ZX Lprint")
DEFINE_DEVICE_TYPE(SPECTRUM_LPRINT3, spectrum_lprint3_device, "spectrum_lprint3", "ZX Lprint III")
DEFINE_DEVICE_TYPE(SPECTRUM_KEMPCENTRS, spectrum_kempcentrs_device, "spectrum_kempcentrs", "Hilderbay / Kempston Centronics S")
DEFINE_DEVICE_TYPE(SPECTRUM_KEMPCENTREF, spectrum_kempcentre_device, "spectrum_kempcentref", "Kempston Centronics E (flat)")
DEFINE_DEVICE_TYPE(SPECTRUM_KEMPCENTREU, spectrum_kempcentreu_device, "spectrum_kempcentreu", "Kempston Centronics E (upright)")
@ -98,6 +100,12 @@ void spectrum_lprint3_device::device_add_mconfig(machine_config &config)
m_exp->nmi_handler().set(DEVICE_SELF_OWNER, FUNC(spectrum_expansion_slot_device::nmi_w));
}
void spectrum_kempcentrs_device::device_add_mconfig(machine_config &config)
{
CENTRONICS(config, m_centronics, centronics_devices, "printer");
m_centronics->busy_handler().set(FUNC(spectrum_kempcentrs_device::busy_w));
}
void spectrum_kempcentre_device::device_add_mconfig(machine_config &config)
{
CENTRONICS(config, m_centronics, centronics_devices, "printer");
@ -151,6 +159,13 @@ spectrum_lprint3_device::spectrum_lprint3_device(const machine_config &mconfig,
{
}
spectrum_kempcentrs_device::spectrum_kempcentrs_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, SPECTRUM_KEMPCENTRS, tag, owner, clock)
, device_spectrum_expansion_interface(mconfig, *this)
, m_centronics(*this, "centronics")
{
}
spectrum_kempcentre_device::spectrum_kempcentre_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, type, tag, owner, clock)
, device_spectrum_expansion_interface(mconfig, *this)
@ -188,6 +203,12 @@ void spectrum_lprint3_device::device_start()
save_item(NAME(m_busy));
}
void spectrum_kempcentrs_device::device_start()
{
m_busy = 0;
save_item(NAME(m_busy));
}
void spectrum_kempcentre_device::device_start()
{
m_busy = 0;
@ -212,6 +233,11 @@ void spectrum_lprint3_device::device_reset()
m_centronics->write_strobe(1);
}
void spectrum_kempcentrs_device::device_reset()
{
m_centronics->write_strobe(1);
}
void spectrum_kempcentre_device::device_reset()
{
m_active = 0;
@ -342,6 +368,47 @@ uint8_t spectrum_lprint3_device::mreq_r(offs_t offset)
}
//**************************************************************************
// IMPLEMENTATION (kempcentrs)
//**************************************************************************
uint8_t spectrum_kempcentrs_device::iorq_r(offs_t offset)
{
uint8_t data = 0xff;
switch (offset)
{
case 0xe2bf:
data &= ~1;
data |= m_busy << 0;
break;
}
return data;
}
void spectrum_kempcentrs_device::iorq_w(offs_t offset, uint8_t data)
{
switch (offset)
{
case 0xe0bf:
m_centronics->write_data0(BIT(data, 0));
m_centronics->write_data1(BIT(data, 1));
m_centronics->write_data2(BIT(data, 2));
m_centronics->write_data3(BIT(data, 3));
m_centronics->write_data4(BIT(data, 4));
m_centronics->write_data5(BIT(data, 5));
m_centronics->write_data6(BIT(data, 6));
m_centronics->write_data7(BIT(data, 7));
break;
case 0xe3bf:
// bit 0 is /STROBE, other bits not known, upon init driver writes to this port 0x81 then 0x0f
m_centronics->write_strobe(BIT(data, 0));
break;
}
}
//**************************************************************************
// IMPLEMENTATION (kempcentre)
//**************************************************************************

28
src/devices/bus/spectrum/lprint.h
View File

@ -91,6 +91,33 @@ protected:
int m_busy;
};
class spectrum_kempcentrs_device :
public device_t,
public device_spectrum_expansion_interface
{
public:
// construction/destruction
spectrum_kempcentrs_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override;
virtual uint8_t iorq_r(offs_t offset) override;
virtual void iorq_w(offs_t offset, uint8_t data) override;
DECLARE_WRITE_LINE_MEMBER(busy_w) { m_busy = state; };
required_device<centronics_device> m_centronics;
int m_busy;
};
class spectrum_kempcentre_device :
public device_t,
public device_spectrum_expansion_interface
@ -150,6 +177,7 @@ protected:
// device type definition
DECLARE_DEVICE_TYPE(SPECTRUM_LPRINT, spectrum_lprint_device)
DECLARE_DEVICE_TYPE(SPECTRUM_LPRINT3, spectrum_lprint3_device)
DECLARE_DEVICE_TYPE(SPECTRUM_KEMPCENTRS, spectrum_kempcentrs_device)
DECLARE_DEVICE_TYPE(SPECTRUM_KEMPCENTREF, spectrum_kempcentre_device)
DECLARE_DEVICE_TYPE(SPECTRUM_KEMPCENTREU, spectrum_kempcentreu_device)