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// license:BSD-3-Clause
// copyright-holders:Ryan Holtz
/***************************************************************************
tdc1008.h
TRW TDC1008 VLSI Multiplier - Accumulator
***************************************************************************/
#ifndef MAME_MACHINE_TDC1008_H
#define MAME_MACHINE_TDC1008_H
#pragma once
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> tdc1008_device
class tdc1008_device : public device_t
{
public:
// construction/destruction
tdc1008_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0);
void x_w(uint8_t data);
void y_w(uint8_t data);
void tsx_w(int state);
void tsm_w(int state);
void tsl_w(int state);
void clk_x_w(int state);
void clk_y_w(int state);
void clk_p_w(int state);
void prel_w(int state);
void rnd_w(int state);
void tc_w(int state);
void acc_w(int state);
void sub_w(int state);
// Output preloads by group
void xtp_w(uint8_t data);
void msp_w(uint8_t data);
void lsp_w(uint8_t data);
// Full output preload
void output_w(uint32_t data);
// Outputs by group
auto xtp() { return m_xtp.bind(); }
auto msp() { return m_msp.bind(); }
auto lsp() { return m_lsp.bind(); }
// Full output
auto p() { return m_p.bind(); }
protected:
// device-level overrides
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
void latch_flags();
union input_reg
{
int8_t s;
uint8_t u;
};
union output_reg
{
int32_t s;
uint32_t u;
};
uint8_t m_x_in;
uint8_t m_y_in;
uint8_t m_xtp_in;
uint8_t m_msp_in;
uint8_t m_lsp_in;
uint32_t m_p_in;
bool m_tsx;
bool m_tsm;
bool m_tsl;
bool m_clk_x;
bool m_clk_y;
bool m_clk_p;
bool m_prel;
bool m_rnd_in;
bool m_rnd;
bool m_tc_in;
bool m_tc;
bool m_acc_in;
bool m_acc;
bool m_sub_in;
bool m_sub;
input_reg m_x;
input_reg m_y;
output_reg m_p_out;
devcb_write8 m_xtp;
devcb_write8 m_msp;
devcb_write8 m_lsp;
devcb_write32 m_p;
};
// device type definition
DECLARE_DEVICE_TYPE(TDC1008, tdc1008_device)
#endif // MAME_MACHINE_TDC1008_H
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