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mc6847: Added internal character generator ROM and M5C6847P-1 variant. [Curt Coder, Anna Wu]

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Curt Coder 2014-04-24 07:31:03 +00:00
parent a9b37d0499
commit 2776c554c3
2 changed files with 65 additions and 0 deletions
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52
src/emu/video/mc6847.c
View File

@ -541,6 +541,26 @@ const char *mc6847_friend_device::describe_context(void)
// BASE DEVICE
//**************************************************************************
//-------------------------------------------------
// ROM( mc6847 )
//-------------------------------------------------
ROM_START( mc6847 )
ROM_REGION( 0x200, "chargen", 0 )
ROM_LOAD( "mc6847", 0x000, 0x200, CRC(9896fba7) SHA1(d0aa6d15278deda15610d290abc7b2f113ced91f) )
ROM_END
//-------------------------------------------------
// rom_region - device-specific ROM region
//-------------------------------------------------
const rom_entry *mc6847_base_device::device_rom_region() const
{
return ROM_NAME( mc6847 );
}
//-------------------------------------------------
// ctor
//-------------------------------------------------
@ -1784,6 +1804,7 @@ const device_type MC6847Y_PAL = &device_creator<mc6847y_pal_device>;
const device_type MC6847T1_NTSC = &device_creator<mc6847t1_ntsc_device>;
const device_type MC6847T1_PAL = &device_creator<mc6847t1_pal_device>;
const device_type S68047 = &device_creator<s68047_device>;
const device_type M5C6847P1 = &device_creator<m5c6847p1_device>;
@ -1898,3 +1919,34 @@ const UINT32 s68047_device::s_s68047_hack_palette[16] =
rgb_t(0x91, 0x00, 0x00), /* ALPHANUMERIC DARK ORANGE */
rgb_t(0xff, 0x81, 0x00) /* ALPHANUMERIC BRIGHT ORANGE */
};
//-------------------------------------------------
// m5c6847p1_device
//-------------------------------------------------
m5c6847p1_device::m5c6847p1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
: mc6847_base_device(mconfig, M5C6847P1, "M5C6847P1", tag, owner, clock, ntsc_square_fontdata8x12, 262.5, "m5c68478p1", __FILE__)
{
}
//-------------------------------------------------
// ROM( m5c6847p1 )
//-------------------------------------------------
ROM_START( m5c6847p1 )
ROM_REGION( 0x200, "chargen", 0 )
ROM_LOAD( "m5c6847p-1", 0x000, 0x200, CRC(540bafe5) SHA1(1b757eb1fa0b695c233b66aa283fb3d780ab9b8b) )
ROM_END
//-------------------------------------------------
// rom_region - device-specific ROM region
//-------------------------------------------------
const rom_entry *m5c6847p1_device::device_rom_region() const
{
return ROM_NAME( m5c6847p1 );
}

13
src/emu/video/mc6847.h
View File

@ -514,6 +514,9 @@ private:
class mc6847_base_device : public mc6847_friend_device
{
public:
// optional information overrides
virtual const rom_entry *device_rom_region() const;
/* updates the screen -- this will call begin_update(),
followed by update_row() reapeatedly and after all row
updating is complete, end_update() */
@ -676,6 +679,15 @@ private:
static const UINT32 s_s68047_hack_palette[16];
};
class m5c6847p1_device : public mc6847_base_device
{
public:
m5c6847p1_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
// optional information overrides
virtual const rom_entry *device_rom_region() const;
};
extern const device_type MC6847_NTSC;
extern const device_type MC6847_PAL;
@ -684,5 +696,6 @@ extern const device_type MC6847Y_PAL;
extern const device_type MC6847T1_NTSC;
extern const device_type MC6847T1_PAL;
extern const device_type S68047;
extern const device_type M5C6847P1;
#endif /* __MC6847__ */