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// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Acorn Atom MDCR
https://site.acornatom.nl/hardware/storage/mdcr/
Error messages:
101 No cassette
102 End of tape
103 Nothing on tape
104 No preamble
105 Incorrect load
106 Write protect
107 File not found
**********************************************************************/
#include "emu.h"
#include "mdcr.h"
#include "machine/mdcr.h"
namespace {
class atom_mdcr_device : public device_t, public device_acorn_bus_interface
{
public:
static constexpr feature_type imperfect_features() { return feature::TAPE; }
atom_mdcr_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
: device_t(mconfig, ATOM_MDCR, tag, owner, clock)
, device_acorn_bus_interface(mconfig, *this)
, m_mdcr(*this, "mdcr")
{
}
protected:
// device_t overrides
virtual void device_start() override ATTR_COLD { }
// optional information overrides
virtual void device_add_mconfig(machine_config &config) override ATTR_COLD;
virtual uint8_t pb_r() override;
virtual void pb_w(uint8_t data) override;
virtual void write_cb2(int state) override;
private:
required_device<mdcr_device> m_mdcr;
void cb1_w(int state);
bool m_output_enable;
};
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void atom_mdcr_device::device_add_mconfig(machine_config &config)
{
MDCR(config, m_mdcr);
m_mdcr->rdc_cb().set(FUNC(atom_mdcr_device::cb1_w));
}
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
uint8_t atom_mdcr_device::pb_r()
{
uint8_t data = 0x00;
data |= m_mdcr->rda() << 0;
data |= m_mdcr->wen() << 1;
data |= m_mdcr->bet() << 6;
data |= m_mdcr->cip() << 7;
return data;
}
void atom_mdcr_device::pb_w(uint8_t data)
{
m_output_enable = !BIT(data, 4);
if (m_output_enable)
{
m_mdcr->fwd(BIT(data, 2));
m_mdcr->rev(BIT(data, 3));
m_mdcr->wdc(BIT(data, 5));
}
}
void atom_mdcr_device::write_cb2(int state)
{
if (m_output_enable)
{
m_mdcr->wda(state);
}
}
void atom_mdcr_device::cb1_w(int state)
{
m_bus->cb1_w(state);
}
} // anonymous namespace
DEFINE_DEVICE_TYPE_PRIVATE(ATOM_MDCR, device_acorn_bus_interface, atom_mdcr_device, "atom_mdcr", "Atom MDCR")
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