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cdp1852: devcb2. (nw)

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This commit is contained in:
Curt Coder 2014-02-27 15:49:03 +00:00
parent eef8f45e9a
commit 66c4a91fef
3 changed files with 86 additions and 164 deletions
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116
src/emu/machine/cdp1852.c
View File

@ -12,10 +12,15 @@
#include "cdp1852.h"
// device type definition
//**************************************************************************
// DEVICE DEFINITIONS
//**************************************************************************
const device_type CDP1852 = &device_creator<cdp1852_device>;
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
@ -28,36 +33,6 @@ enum
//**************************************************************************
// INLINE HELPERS
//**************************************************************************
//-------------------------------------------------
// get_mode -
//-------------------------------------------------
int cdp1852_device::get_mode()
{
return m_in_mode_func();
}
//-------------------------------------------------
// set_sr_line -
//-------------------------------------------------
void cdp1852_device::set_sr_line(int state)
{
if (m_sr != state)
{
m_sr = state;
m_out_sr_func(m_sr);
}
}
//**************************************************************************
// LIVE DEVICE
//**************************************************************************
@ -66,36 +41,16 @@ void cdp1852_device::set_sr_line(int state)
// cdp1852_device - constructor
//-------------------------------------------------
cdp1852_device::cdp1852_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: device_t(mconfig, CDP1852, "CDP1852", tag, owner, clock, "cdp1852", __FILE__)
cdp1852_device::cdp1852_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) :
device_t(mconfig, CDP1852, "CDP1852", tag, owner, clock, "cdp1852", __FILE__),
m_read_mode(*this),
m_write_sr(*this),
m_read_data(*this),
m_write_data(*this)
{
}
//-------------------------------------------------
// device_config_complete - perform any
// operations now that the configuration is
// complete
//-------------------------------------------------
void cdp1852_device::device_config_complete()
{
// inherit a copy of the static data
const cdp1852_interface *intf = reinterpret_cast<const cdp1852_interface *>(static_config());
if (intf != NULL)
*static_cast<cdp1852_interface *>(this) = *intf;
// or initialize to defaults if none provided
else
{
memset(&m_in_mode_cb, 0, sizeof(m_in_mode_cb));
memset(&m_out_sr_cb, 0, sizeof(m_out_sr_cb));
memset(&m_in_data_cb, 0, sizeof(m_in_data_cb));
memset(&m_out_data_cb, 0, sizeof(m_out_data_cb));
}
}
//-------------------------------------------------
// device_start - device-specific startup
//-------------------------------------------------
@ -103,10 +58,10 @@ void cdp1852_device::device_config_complete()
void cdp1852_device::device_start()
{
// resolve callbacks
m_in_mode_func.resolve(m_in_mode_cb, *this);
m_out_sr_func.resolve(m_out_sr_cb, *this);
m_in_data_func.resolve(m_in_data_cb, *this);
m_out_data_func.resolve(m_out_data_cb, *this);
m_read_mode.resolve_safe(0);
m_write_sr.resolve_safe();
m_read_data.resolve_safe(0);
m_write_data.resolve_safe();
// allocate timers
if (clock() > 0)
@ -133,7 +88,7 @@ void cdp1852_device::device_reset()
// reset data register
m_data = 0;
if (get_mode() == MODE_INPUT)
if (!m_read_mode())
{
// reset service request flip-flop
set_sr_line(1);
@ -141,7 +96,7 @@ void cdp1852_device::device_reset()
else
{
// output data
m_out_data_func(0, m_data);
m_write_data((offs_t)0, m_data);
// reset service request flip-flop
set_sr_line(0);
@ -155,17 +110,16 @@ void cdp1852_device::device_reset()
void cdp1852_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
switch (get_mode())
if (!m_read_mode())
{
case MODE_INPUT:
// input data into register
m_data = m_in_data_func(0);
m_data = m_read_data(0);
// signal processor
set_sr_line(0);
break;
case MODE_OUTPUT:
}
else
{
if (m_new_data)
{
m_new_data = 0;
@ -174,7 +128,7 @@ void cdp1852_device::device_timer(emu_timer &timer, device_timer_id id, int para
m_data = m_next_data;
// output data
m_out_data_func(0, m_data);
m_write_data((offs_t)0, m_data);
// signal peripheral device
set_sr_line(1);
@ -185,7 +139,21 @@ void cdp1852_device::device_timer(emu_timer &timer, device_timer_id id, int para
{
set_sr_line(m_next_sr);
}
break;
}
}
//-------------------------------------------------
// set_sr_line -
//-------------------------------------------------
void cdp1852_device::set_sr_line(int state)
{
if (m_sr != state)
{
m_sr = state;
m_write_sr(m_sr);
}
}
@ -196,10 +164,10 @@ void cdp1852_device::device_timer(emu_timer &timer, device_timer_id id, int para
READ8_MEMBER( cdp1852_device::read )
{
if ((get_mode() == MODE_INPUT) && (clock() == 0))
if (!m_read_mode() && !clock())
{
// input data into register
m_data = m_in_data_func(0);
m_data = m_read_data(0);
}
set_sr_line(1);
@ -214,7 +182,7 @@ READ8_MEMBER( cdp1852_device::read )
WRITE8_MEMBER( cdp1852_device::write )
{
if (get_mode() == MODE_OUTPUT)
if (m_read_mode())
{
m_next_data = data;
m_new_data = 1;

61
src/emu/machine/cdp1852.h
View File

@ -33,31 +33,21 @@
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
#define CDP1852_CLOCK_HIGH 0
#define CDP1852_MODE_INPUT \
DEVCB_LINE_GND
#define CDP1852_MODE_OUTPUT \
DEVCB_LINE_VCC
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_CDP1852_ADD(_tag, _clock, _config) \
MCFG_DEVICE_ADD(_tag, CDP1852, _clock) \
MCFG_DEVICE_CONFIG(_config)
#define MCFG_CDP1852_MODE_CALLBACK(_read) \
devcb = &cdp1852_device::set_mode_rd_callback(*device, DEVCB2_##_read);
#define MCFG_CDP1852_SR_CALLBACK(_write) \
devcb = &cdp1852_device::set_sr_wr_callback(*device, DEVCB2_##_write);
#define CDP1852_INTERFACE(name) \
const cdp1852_interface (name)=
#define MCFG_CDP1852_DI_CALLBACK(_read) \
devcb = &cdp1852_device::set_data_rd_callback(*device, DEVCB2_##_read);
#define MCFG_CDP1852_DO_CALLBACK(_write) \
devcb = &cdp1852_device::set_data_wr_callback(*device, DEVCB2_##_write);
@ -65,46 +55,35 @@
// TYPE DEFINITIONS
//**************************************************************************
// ======================> cdp1852_interface
struct cdp1852_interface
{
devcb_read_line m_in_mode_cb;
devcb_read8 m_in_data_cb;
devcb_write8 m_out_data_cb;
devcb_write_line m_out_sr_cb;
};
// ======================> cdp1852_device
class cdp1852_device : public device_t,
public cdp1852_interface
class cdp1852_device : public device_t
{
public:
// construction/destruction
cdp1852_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
template<class _Object> static devcb2_base &set_mode_rd_callback(device_t &device, _Object object) { return downcast<cdp1852_device &>(device).m_read_mode.set_callback(object); }
template<class _Object> static devcb2_base &set_sr_wr_callback(device_t &device, _Object object) { return downcast<cdp1852_device &>(device).m_write_sr.set_callback(object); }
template<class _Object> static devcb2_base &set_data_rd_callback(device_t &device, _Object object) { return downcast<cdp1852_device &>(device).m_read_data.set_callback(object); }
template<class _Object> static devcb2_base &set_data_wr_callback(device_t &device, _Object object) { return downcast<cdp1852_device &>(device).m_write_data.set_callback(object); }
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
protected:
// device-level overrides
virtual void device_config_complete();
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
private:
int get_mode();
inline void set_sr_line(int state);
void set_sr_line(int state);
devcb_resolved_read_line m_in_mode_func;
devcb_resolved_write_line m_out_sr_func;
devcb_resolved_read8 m_in_data_func;
devcb_resolved_write8 m_out_data_func;
devcb2_read_line m_read_mode;
devcb2_write_line m_write_sr;
devcb2_read8 m_read_data;
devcb2_write8 m_write_data;
int m_new_data; // new data written
UINT8 m_data; // data latch

73
src/mame/drivers/cidelsa.c
View File

@ -136,47 +136,6 @@ WRITE8_MEMBER( draco_state::out1_w )
m_sound = (data & 0xe0) >> 5;
}
static CDP1852_INTERFACE( cidelsa_cdp1852_in0_intf )
{
CDP1852_MODE_INPUT,
DEVCB_INPUT_PORT("IN0"),
DEVCB_NULL,
DEVCB_NULL
};
static CDP1852_INTERFACE( cidelsa_cdp1852_in1_intf )
{
CDP1852_MODE_INPUT,
DEVCB_INPUT_PORT("IN1"),
DEVCB_NULL,
DEVCB_NULL
};
static CDP1852_INTERFACE( cidelsa_cdp1852_in2_intf )
{
CDP1852_MODE_INPUT,
DEVCB_INPUT_PORT("IN2"),
DEVCB_NULL,
DEVCB_NULL
};
static CDP1852_INTERFACE( altair_cdp1852_out1_intf )
{
CDP1852_MODE_OUTPUT,
DEVCB_NULL,
DEVCB_DRIVER_MEMBER(cidelsa_state, altair_out1_w),
DEVCB_NULL
};
static CDP1852_INTERFACE( draco_cdp1852_out1_intf )
{
CDP1852_MODE_OUTPUT,
DEVCB_NULL,
DEVCB_DRIVER_MEMBER(draco_state, out1_w),
DEVCB_NULL
};
/* Memory Maps */
// Destroyer
@ -485,10 +444,18 @@ static MACHINE_CONFIG_START( altair, cidelsa_state )
MCFG_NVRAM_ADD_0FILL("nvram")
/* input/output hardware */
MCFG_CDP1852_ADD("ic23", CDP1852_CLOCK_HIGH, cidelsa_cdp1852_in0_intf) /* clock is really tied to CDP1869 CMSEL (pin 37) */
MCFG_CDP1852_ADD("ic24", CDP1852_CLOCK_HIGH, cidelsa_cdp1852_in1_intf)
MCFG_CDP1852_ADD("ic25", CDP1852_CLOCK_HIGH, cidelsa_cdp1852_in2_intf)
MCFG_CDP1852_ADD("ic26", ALTAIR_CHR1 / 8, altair_cdp1852_out1_intf) /* clock is CDP1802 TPB */
MCFG_DEVICE_ADD("ic23", CDP1852, 0) // clock is really tied to CDP1869 CMSEL (pin 37)
MCFG_CDP1852_MODE_CALLBACK(GND)
MCFG_CDP1852_DI_CALLBACK(IOPORT("IN0"))
MCFG_DEVICE_ADD("ic24", CDP1852, 0)
MCFG_CDP1852_MODE_CALLBACK(GND)
MCFG_CDP1852_DI_CALLBACK(IOPORT("IN1"))
MCFG_DEVICE_ADD("ic25", CDP1852, 0)
MCFG_CDP1852_MODE_CALLBACK(GND)
MCFG_CDP1852_DI_CALLBACK(IOPORT("IN2"))
MCFG_DEVICE_ADD("ic26", CDP1852, ALTAIR_CHR1 / 8) // clock is CDP1802 TPB
MCFG_CDP1852_MODE_CALLBACK(VCC)
MCFG_CDP1852_DO_CALLBACK(WRITE8(cidelsa_state, altair_out1_w))
/* sound and video hardware */
MCFG_FRAGMENT_ADD(altair_video)
@ -511,10 +478,18 @@ static MACHINE_CONFIG_START( draco, draco_state )
MCFG_COP400_CONFIG( COP400_CKI_DIVISOR_16, COP400_CKO_OSCILLATOR_OUTPUT, COP400_MICROBUS_DISABLED )
/* input/output hardware */
MCFG_CDP1852_ADD("ic29", CDP1852_CLOCK_HIGH, cidelsa_cdp1852_in0_intf) /* clock is really tied to CDP1876 CMSEL (pin 32) */
MCFG_CDP1852_ADD("ic30", CDP1852_CLOCK_HIGH, cidelsa_cdp1852_in1_intf)
MCFG_CDP1852_ADD("ic31", CDP1852_CLOCK_HIGH, cidelsa_cdp1852_in2_intf)
MCFG_CDP1852_ADD("ic32", DRACO_CHR1 / 8, draco_cdp1852_out1_intf) /* clock is CDP1802 TPB */
MCFG_DEVICE_ADD("ic29", CDP1852, 0) // clock is really tied to CDP1869 CMSEL (pin 37)
MCFG_CDP1852_MODE_CALLBACK(GND)
MCFG_CDP1852_DI_CALLBACK(IOPORT("IN0"))
MCFG_DEVICE_ADD("ic30", CDP1852, 0)
MCFG_CDP1852_MODE_CALLBACK(GND)
MCFG_CDP1852_DI_CALLBACK(IOPORT("IN1"))
MCFG_DEVICE_ADD("ic31", CDP1852, 0)
MCFG_CDP1852_MODE_CALLBACK(GND)
MCFG_CDP1852_DI_CALLBACK(IOPORT("IN2"))
MCFG_DEVICE_ADD("ic32", CDP1852, ALTAIR_CHR1 / 8) // clock is CDP1802 TPB
MCFG_CDP1852_MODE_CALLBACK(VCC)
MCFG_CDP1852_DO_CALLBACK(WRITE8(draco_state, out1_w))
/* sound and video hardware */
MCFG_FRAGMENT_ADD(draco_video)