Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-17 19:24:59 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Imported the MC68901 device from MESS so it can be shared with micro3d.c. [Curt Coder]

Browse Source
This commit is contained in:
Curt Coder 2011-01-29 11:11:12 +00:00
parent 82263d0988
commit 380925dc14
4 changed files with 1746 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.gitattributes vendored
View File

@ -810,6 +810,8 @@ src/emu/machine/mb87078.c svneol=native#text/plain
src/emu/machine/mb87078.h svneol=native#text/plain src/emu/machine/mb87078.h svneol=native#text/plain
src/emu/machine/mc146818.c svneol=native#text/plain src/emu/machine/mc146818.c svneol=native#text/plain
src/emu/machine/mc146818.h svneol=native#text/plain src/emu/machine/mc146818.h svneol=native#text/plain
src/emu/machine/mc68901.c svneol=native#text/plain
src/emu/machine/mc68901.h svneol=native#text/plain
src/emu/machine/microtch.c svneol=native#text/plain src/emu/machine/microtch.c svneol=native#text/plain
src/emu/machine/microtch.h svneol=native#text/plain src/emu/machine/microtch.h svneol=native#text/plain
src/emu/machine/msm6242.c svneol=native#text/plain src/emu/machine/msm6242.c svneol=native#text/plain

1
src/emu/emu.mak
View File

@ -182,6 +182,7 @@ EMUMACHINEOBJS = \
$(EMUMACHINE)/mb3773.o \ $(EMUMACHINE)/mb3773.o \
$(EMUMACHINE)/mb87078.o \ $(EMUMACHINE)/mb87078.o \
$(EMUMACHINE)/mc146818.o \ $(EMUMACHINE)/mc146818.o \
$(EMUMACHINE)/mc68901.o \
$(EMUMACHINE)/microtch.o \ $(EMUMACHINE)/microtch.o \
$(EMUMACHINE)/msm6242.o \ $(EMUMACHINE)/msm6242.o \
$(EMUMACHINE)/nvram.o \ $(EMUMACHINE)/nvram.o \

1486
src/emu/machine/mc68901.c Normal file
View File

File diff suppressed because it is too large Load Diff

257
src/emu/machine/mc68901.h Normal file
View File

@ -0,0 +1,257 @@
/**********************************************************************
Motorola MC68901 Multi Function Peripheral emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
_____ _____
R/_W 1 |* \_/ | 48 _CS
RS1 2 | | 47 _DS
RS2 3 | | 46 _DTACK
RS3 4 | | 45 _IACK
RS4 5 | | 44 D7
RS5 6 | | 43 D6
TC 7 | | 42 D5
SO 8 | | 41 D4
SI 9 | | 40 D3
RC 10 | | 39 D2
Vcc 11 | | 38 D1
NC 12 | MC68901 | 37 D0
TAO 13 | MK68901 | 36 GND
TBO 14 | | 35 CLK
TCO 15 | | 34 _IEI
TDO 16 | | 33 _IEO
XTAL1 17 | | 32 _IRQ
XTAL2 18 | | 31 _RR
TAI 19 | | 30 _TR
TBI 20 | | 29 I7
_RESET 21 | | 28 I6
I0 22 | | 27 I5
I1 23 | | 26 I4
I2 24 |_____________| 25 I3
**********************************************************************/
#pragma once
#ifndef __MC68901__
#define __MC68901__
#include "emu.h"
//**************************************************************************
// MACROS / CONSTANTS
//**************************************************************************
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_MC68901_ADD(_tag, _clock, _config) \
MCFG_DEVICE_ADD((_tag), MC68901, _clock) \
MCFG_DEVICE_CONFIG(_config)
#define MC68901_INTERFACE(name) \
const mc68901_interface (name) =
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> mc68901_interface
struct mc68901_interface
{
int timer_clock; /* timer clock */
int rx_clock; /* serial receive clock */
int tx_clock; /* serial transmit clock */
devcb_write_line out_irq_func;
devcb_read8 in_gpio_func;
devcb_write8 out_gpio_func;
devcb_write_line out_tao_func;
devcb_write_line out_tbo_func;
devcb_write_line out_tco_func;
devcb_write_line out_tdo_func;
devcb_read_line in_si_func;
devcb_write_line out_so_func;
devcb_write_line out_rr_func;
devcb_write_line out_tr_func;
};
// ======================> mc68901_device_config
class mc68901_device_config : public device_config,
public mc68901_interface
{
friend class mc68901_device;
// construction/destruction
mc68901_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
public:
// allocators
static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
virtual device_t *alloc_device(running_machine &machine) const;
protected:
// device_config overrides
virtual void device_config_complete();
};
// ======================> mc68901_device
class mc68901_device : public device_t
{
friend class mc68901_device_config;
// construction/destruction
mc68901_device(running_machine &_machine, const mc68901_device_config &_config);
public:
DECLARE_READ8_MEMBER( read );
DECLARE_WRITE8_MEMBER( write );
int get_vector();
DECLARE_WRITE_LINE_MEMBER( i0_w );
DECLARE_WRITE_LINE_MEMBER( i1_w );
DECLARE_WRITE_LINE_MEMBER( i2_w );
DECLARE_WRITE_LINE_MEMBER( i3_w );
DECLARE_WRITE_LINE_MEMBER( i4_w );
DECLARE_WRITE_LINE_MEMBER( i5_w );
DECLARE_WRITE_LINE_MEMBER( i6_w );
DECLARE_WRITE_LINE_MEMBER( i7_w );
DECLARE_WRITE_LINE_MEMBER( tai_w );
DECLARE_WRITE_LINE_MEMBER( tbi_w );
DECLARE_WRITE_LINE_MEMBER( rc_w );
DECLARE_WRITE_LINE_MEMBER( tc_w );
protected:
// device-level overrides
virtual void device_start();
virtual void device_reset();
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
void check_interrupts();
void take_interrupt(UINT16 mask);
void rx_buffer_full();
void rx_error();
void tx_buffer_empty();
void tx_error();
int get_parity_bit(UINT8 b);
void serial_receive();
void tx_disabled();
void tx_starting();
void tx_break();
void tx_enabled();
void serial_transmit();
void timer_count(int index);
void timer_input(int index, int value);
void gpio_input(int bit, int state);
void register_w(offs_t offset, UINT8 data);
private:
static const device_timer_id TIMER_A = 0;
static const device_timer_id TIMER_B = 1;
static const device_timer_id TIMER_C = 2;
static const device_timer_id TIMER_D = 3;
static const device_timer_id TIMER_RX = 4;
static const device_timer_id TIMER_TX = 5;
devcb_resolved_read8 m_in_gpio_func;
devcb_resolved_write8 m_out_gpio_func;
devcb_resolved_read_line m_in_si_func;
devcb_resolved_write_line m_out_so_func;
devcb_resolved_write_line m_out_tao_func;
devcb_resolved_write_line m_out_tbo_func;
devcb_resolved_write_line m_out_tco_func;
devcb_resolved_write_line m_out_tdo_func;
devcb_resolved_write_line m_out_irq_func;
int m_device_type; /* device type */
int m_timer_clock; /* timer clock */
/* registers */
UINT8 m_gpip; /* general purpose I/O register */
UINT8 m_aer; /* active edge register */
UINT8 m_ddr; /* data direction register */
UINT16 m_ier; /* interrupt enable register */
UINT16 m_ipr; /* interrupt pending register */
UINT16 m_isr; /* interrupt in-service register */
UINT16 m_imr; /* interrupt mask register */
UINT8 m_vr; /* vector register */
UINT8 m_tacr; /* timer A control register */
UINT8 m_tbcr; /* timer B control register */
UINT8 m_tcdcr; /* timers C and D control register */
UINT8 m_tdr[4]; /* timer data registers */
UINT8 m_scr; /* synchronous character register */
UINT8 m_ucr; /* USART control register */
UINT8 m_tsr; /* transmitter status register */
UINT8 m_rsr; /* receiver status register */
UINT8 m_udr; /* USART data register */
/* counter timer state */
UINT8 m_tmc[4]; /* timer main counters */
int m_ti[4]; /* timer in latch */
int m_to[4]; /* timer out latch */
/* interrupt state */
int m_irqlevel; /* interrupt level latch */
/* serial state */
UINT8 m_next_rsr; /* receiver status register latch */
int m_rsr_read; /* receiver status register read flag */
int m_rxtx_word; /* word length */
int m_rxtx_start; /* start bits */
int m_rxtx_stop; /* stop bits */
/* receive state */
UINT8 m_rx_buffer; /* receive buffer */
int m_rx_bits; /* receive bit count */
int m_rx_parity; /* receive parity bit */
int m_rx_state; /* receive state */
/* transmit state */
UINT8 m_tx_buffer; /* transmit buffer */
int m_tx_bits; /* transmit bit count */
int m_tx_parity; /* transmit parity bit */
int m_tx_state; /* transmit state */
int m_xmit_state; /* transmitter state */
// timers
emu_timer *m_timer[4]; /* counter timers */
emu_timer *m_rx_timer; /* receive timer */
emu_timer *m_tx_timer; /* transmit timer */
const mc68901_device_config &m_config;
};
// device type definition
extern const device_type MC68901;
#endif