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Factored out some more MESS specific code for Atari 8bit

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This commit is contained in:
Fabio Priuli 2009-04-30 10:08:26 +00:00
parent 706c525c72
commit 3a3acbc79d
2 changed files with 10 additions and 45 deletions
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13
src/mame/includes/atari.h
View File

@ -16,19 +16,18 @@
/*----------- defined in machine/atari.c -----------*/
extern const pia6821_interface atari_pia_interface;
extern const pia6821_interface a600xl_pia_interface;
extern const pia6821_interface a800xl_pia_interface;
/* These handlers are needed by MESS Atari 8bit drivers (for their custom pia_interface) */
READ8_DEVICE_HANDLER(atari_pia_pa_r);
READ8_DEVICE_HANDLER(atari_pia_pb_r);
WRITE8_DEVICE_HANDLER(a800xl_pia_pb_w);
void atari_machine_start(running_machine *machine); // this is needed in MESS as well for other Atari 8bits systems
/* This is needed in MESS as well for Atari 8bit drivers */
void atari_machine_start(running_machine *machine);
MACHINE_START( a600xl );
WRITE_LINE_DEVICE_HANDLER(atari_pia_cb2_w);
READ8_HANDLER ( atari_serin_r );
WRITE8_HANDLER ( atari_serout_w );
void atari_interrupt_cb(const device_config *device, int mask);
void a800_handle_keyboard(running_machine *machine);

42
src/mame/machine/atari.c
View File

@ -63,36 +63,20 @@ void atari_interrupt_cb(const device_config *device, int mask)
*
**************************************************************/
static READ8_DEVICE_HANDLER(atari_pia_pa_r)
READ8_DEVICE_HANDLER(atari_pia_pa_r)
{
return atari_input_disabled() ? 0xFF : input_port_read_safe(device->machine, "djoy_0_1", 0);
}
static READ8_DEVICE_HANDLER(atari_pia_pb_r)
READ8_DEVICE_HANDLER(atari_pia_pb_r)
{
return atari_input_disabled() ? 0xFF : input_port_read_safe(device->machine, "djoy_2_3", 0);
}
static WRITE8_DEVICE_HANDLER(a600xl_pia_pb_w) { a600xl_mmu(device->machine, data); }
static WRITE8_DEVICE_HANDLER(a800xl_pia_pb_w) { a800xl_mmu(device->machine, data); }
WRITE8_DEVICE_HANDLER(a800xl_pia_pb_w) { a800xl_mmu(device->machine, data); }
WRITE_LINE_DEVICE_HANDLER(atari_pia_cb2_w) { }
const pia6821_interface atari_pia_interface =
{
DEVCB_HANDLER(atari_pia_pa_r), /* port A in */
DEVCB_HANDLER(atari_pia_pb_r), /* port B in */
DEVCB_NULL, /* line CA1 in */
DEVCB_NULL, /* line CB1 in */
DEVCB_NULL, /* line CA2 in */
DEVCB_NULL, /* line CB2 in */
DEVCB_NULL, /* port A out */
DEVCB_NULL, /* port B out */
DEVCB_NULL, /* line CA2 out */
DEVCB_LINE(atari_pia_cb2_w), /* port CB2 out */
DEVCB_NULL, /* IRQA */
DEVCB_NULL /* IRQB */
};
static WRITE_LINE_DEVICE_HANDLER(atari_pia_cb2_w) { } // This is used by Floppy drive on Atari 8bits Home Computers
const pia6821_interface a600xl_pia_interface =
{
@ -110,24 +94,6 @@ const pia6821_interface a600xl_pia_interface =
DEVCB_NULL /* IRQB */
};
const pia6821_interface a800xl_pia_interface =
{
DEVCB_HANDLER(atari_pia_pa_r), /* port A in */
DEVCB_HANDLER(atari_pia_pb_r), /* port B in */
DEVCB_NULL, /* line CA1 in */
DEVCB_NULL, /* line CB1 in */
DEVCB_NULL, /* line CA2 in */
DEVCB_NULL, /* line CB2 in */
DEVCB_NULL, /* port A out */
DEVCB_HANDLER(a800xl_pia_pb_w), /* port B out */
DEVCB_NULL, /* line CA2 out */
DEVCB_LINE(atari_pia_cb2_w), /* port CB2 out */
DEVCB_NULL, /* IRQA */
DEVCB_NULL /* IRQB */
};
/**************************************************************
*