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Added a MDRV_EEPROM_NODEFAULT_ADD macro for drivers which do not need default data size / data

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I don't like too much this solution, but now the code is self contained: hence, better fixes (e.g. no MDRV_DEVICE_CONFIG_DATAPTR(eeprom_config, default_data, &_data) at all for the NODEFAULT eeprom?) could be added without further modifying the behavior across the drivers.
This commit is contained in:
Fabio Priuli 2009-11-18 12:56:36 +00:00
parent 1a9e28c419
commit 514c637bbe
2 changed files with 8 additions and 0 deletions
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3
src/emu/machine/eepromdev.c
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@ -12,6 +12,9 @@
#define SERIAL_BUFFER_LENGTH 40
#define MEMORY_SIZE 1024
/* FIXME: many drivers do not need default_data / default_data_size and put them to 0 in the drivers seems a waste of code */
UINT8 *eeprom_empty_default_data = NULL;
typedef struct _eeprom_state eeprom_state;
struct _eeprom_state
{

5
src/emu/machine/eepromdev.h
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@ -53,6 +53,11 @@ DEVICE_GET_INFO(eeprom);
MDRV_DEVICE_CONFIG_DATAPTR(eeprom_config, default_data, &_data) \
MDRV_DEVICE_CONFIG_DATA32(eeprom_config, default_data_size, _size)
/* FIXME: many drivers do not need default_data / default_data_size and put them to 0 in the drivers seems a waste of code */
extern UINT8 *eeprom_empty_default_data;
#define MDRV_EEPROM_NODEFAULT_ADD(_tag, _interface) \
MDRV_EEPROM_ADD(_tag, _interface, 0, eeprom_empty_default_data)
void eepromdev_write_bit( const device_config *device, int bit );
int eepromdev_read_bit( const device_config *device );