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// license:BSD-3-Clause
// copyright-holders:Sergey Svishchev
/***************************************************************************
DEC PC11 paper tape reader and punch controller (punch not implemented)
***************************************************************************/
#ifndef MAME_BUS_QBUS_PC11_H
#define MAME_BUS_QBUS_PC11_H
#pragma once
#include "qbus.h"
#include "imagedev/papertape.h"
#include "machine/pdp11.h"
#define PTRCSR_IMP (CSR_ERR + CSR_BUSY + CSR_DONE + CSR_IE)
#define PTRCSR_WR (CSR_IE)
#define PTPCSR_IMP (CSR_ERR + CSR_DONE + CSR_IE)
#define PTPCSR_WR (CSR_IE)
/***************************************************************************
TYPE DEFINITIONS
***************************************************************************/
// ======================> pc11_device
class pc11_device : public paper_tape_reader_device,
public device_qbus_card_interface
{
public:
// construction/destruction
pc11_device(const machine_config &mconfig, const char *tag, device_t *owner, const XTAL &clock);
// image-level overrides
virtual const char *image_interface() const noexcept override { return "pdp11_ptap"; }
virtual const char *file_extensions() const noexcept override { return "bin,bim,lda"; }
virtual image_init_result call_load() override;
virtual void call_unload() override;
uint16_t read(offs_t offset);
void write(offs_t offset, uint16_t data);
protected:
// device-level overrides
virtual void device_start() override;
virtual void device_reset() override;
// device_z80daisy_interface overrides
virtual int z80daisy_irq_state() override;
virtual int z80daisy_irq_ack() override;
virtual void z80daisy_irq_reti() override;
TIMER_CALLBACK_MEMBER(read_tick);
private:
int m_rxvec;
int m_txvec;
device_image_interface *m_fd;
line_state m_rxrdy;
line_state m_txrdy;
uint16_t m_rcsr;
uint16_t m_rbuf;
uint16_t m_tcsr;
uint16_t m_tbuf;
emu_timer *m_read_timer;
const char *pc11_regnames[4];
};
// device type definition
DECLARE_DEVICE_TYPE(DEC_PC11, pc11_device)
#endif
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