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// license:BSD-3-Clause
// copyright-holders:Nigel Barnes
/**********************************************************************
Aquarius C1541 DOS Interface by Ron Koenig
**********************************************************************/
#include "emu.h"
#include "c1541.h"
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
DEFINE_DEVICE_TYPE(AQUARIUS_C1541, aquarius_c1541_device, "aquarius_c1541", "Aquarius C1541 DOS Interface")
//-------------------------------------------------
// device_add_mconfig - add device configuration
//-------------------------------------------------
void aquarius_c1541_device::device_add_mconfig(machine_config &config)
{
cbm_iec_slot_device::add(config, m_iec, "c1541");
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
//-------------------------------------------------
// aquarius_c1541_device - constructor
//-------------------------------------------------
aquarius_c1541_device::aquarius_c1541_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock)
: device_t(mconfig, AQUARIUS_C1541, tag, owner, clock)
, device_aquarius_cartridge_interface(mconfig, *this)
, m_iec(*this, "iec_bus")
{
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
void aquarius_c1541_device::device_start()
{
}
//**************************************************************************
// IMPLEMENTATION
//**************************************************************************
uint8_t aquarius_c1541_device::mreq_ce_r(offs_t offset)
{
return get_rom_base()[offset & 0x3fff];
}
uint8_t aquarius_c1541_device::iorq_r(offs_t offset)
{
uint8_t data = 0xff;
if (offset == 0x60)
{
// TODO: unknown connections
data = 0x00;
data |= m_iec->clk_r() << 7;
data |= m_iec->data_r() << 3;
logerror("iorq_r: %02x = %02x\n", offset, data);
}
return data;
}
void aquarius_c1541_device::iorq_w(offs_t offset, uint8_t data)
{
if (offset == 0x60)
{
logerror("iorq_w: %02x = %02x\n", offset, data);
// TODO: unknown connections
m_iec->host_atn_w(BIT(data, 6));
m_iec->host_clk_w(BIT(data, 5));
m_iec->host_data_w(BIT(data, 4));
}
}
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