MAME SVN History

199869 Revisions

r19863 Thursday 27th December, 2012 at 17:03:03 UTC by David Haywood
more (nw)

[src/mame]	mame.mak
[src/mame/drivers]	progolf.c
[src/mame/machine]	decocpu6.c* decocpu6.h*

trunk/src/mame/machine/decocpu6.c
r0	r19863
	1	/* apparently Deco CPU-6 used by ProGolf
	2	just seems to be a bitswap on the opcodes like 222, but not the same one
	3	not a complex scheme like CPU-7?
	4	*/
	5
	6
	7	#include "decocpu6.h"
	8
	9	deco_cpu6_device::deco_cpu6_device(const machine_config &mconfig, const char tag, device_t owner, UINT32 clock) :
	10	m6502_device(mconfig, DECO_CPU6, "DECO CPU-6", tag, owner, clock)
	11	{
	12	}
	13
	14	void deco_cpu6_device::device_start()
	15	{
	16	mintf = new mi_decrypt;
	17	init();
	18	}
	19
	20	void deco_cpu6_device::device_reset()
	21	{
	22	m6502_device::device_reset();
	23	}
	24
	25	UINT8 deco_cpu6_device::mi_decrypt::read_decrypted(UINT16 adr)
	26	{
	27	if (adr&1)
	28	return BITSWAP8(direct->read_raw_byte(adr),6,4,7,5,3,2,1,0);
	29	else
	30	return direct->read_raw_byte(adr);
	31	}
	32

trunk/src/mame/machine/decocpu6.h
r0	r19863
	1
	2
	3	#include "emu.h"
	4	#include "cpu/m6502/m6502.h"
	5
	6	class deco_cpu6_device : public m6502_device {
	7	public:
	8	deco_cpu6_device(const machine_config &mconfig, const char tag, device_t owner, UINT32 clock);
	9
	10	protected:
	11	class mi_decrypt : public mi_default_normal {
	12	public:
	13	virtual ~mi_decrypt() {}
	14	virtual UINT8 read_decrypted(UINT16 adr);
	15	};
	16
	17	virtual void device_start();
	18	virtual void device_reset();
	19
	20	};
	21
	22	static const device_type DECO_CPU6 = &device_creator<deco_cpu6_device>;
	23
	24

trunk/src/mame/mame.mak
r19862	r19863
630	630	$(DRIVERS)/dec8.o $(VIDEO)/dec8.o \
631	631	$(MACHINE)/deco222.o \
632	632	$(MACHINE)/decocpu7.o \
	633	$(MACHINE)/decocpu6.o \
633	634	$(DRIVERS)/deco_ld.o \
634	635	$(DRIVERS)/deco_mlc.o $(VIDEO)/deco_mlc.o \
635	636	$(DRIVERS)/deco156.o $(MACHINE)/deco156.o \

trunk/src/mame/drivers/progolf.c
r19862	r19863
55	55	#include "sound/ay8910.h"
56	56	#include "video/mc6845.h"
57	57	#include "machine/deco222.h"
	58	#include "machine/decocpu6.h"
58	59
59	60	class progolf_state : public driver_device
60	61	{
r19862	r19863
82	83	DECLARE_READ8_MEMBER(progolf_videoram_r);
83	84	DECLARE_WRITE8_MEMBER(progolf_videoram_w);
84	85	DECLARE_INPUT_CHANGED_MEMBER(coin_inserted);
85		DECLARE_DRIVER_INIT(progolfa);
86		DECLARE_DRIVER_INIT(progolf);
87	86	virtual void video_start();
88	87	virtual void palette_init();
89	88	UINT32 screen_update_progolf(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
r19862	r19863
456	455
457	456	static MACHINE_CONFIG_DERIVED( progolfa, progolf )
458	457	MCFG_DEVICE_REMOVE("maincpu") /* different encrypted cpu to progolf */
459		MCFG_CPU_ADD("maincpu", M6~~502~~, 3000000/2) /* guess, 3 Mhz makes the game to behave worse? */
	458	MCFG_CPU_ADD("maincpu", DECO_CPU6, 3000000/2) /* guess, 3 Mhz makes the game to behave worse? */
460	459	MCFG_CPU_PROGRAM_MAP(main_cpu)
461	460	MCFG_CPU_VBLANK_INT_DRIVER("screen", progolf_state, progolf_interrupt)
462	461	MACHINE_CONFIG_END
r19862	r19863
508	507
509	508
510	509
511		DRIVER_INIT_MEMBER(progolf_state,progolfa)
512		{
513		int A;
514		address_space &space = machine().device("maincpu")->memory().space(AS_PROGRAM);
515		UINT8 *rom = machine().root_device().memregion("maincpu")->base();
516		UINT8* decrypted = auto_alloc_array(machine(), UINT8, 0x10000);
517	510
518		space.set_decrypted_region(0x0000,0xffff, decrypted);
519	511
520		/* data is likely to not be encrypted, just the opcodes are. */
521		for (A = 0x0000 ; A < 0x10000 ; A++)
522		{
523		if (A & 1)
524		decrypted[A] = BITSWAP8(rom[A],6,4,7,5,3,2,1,0);
525		else
526		decrypted[A] = rom[A];
527		}
528		}
529
530	512	// this uses DECO222 style encryption
531	513	GAME( 1981, progolf, 0, progolf, progolf, driver_device, 0, ROT270, "Data East Corporation", "18 Holes Pro Golf (set 1)", GAME_IMPERFECT_GRAPHICS \| GAME_NO_COCKTAIL )
532		// this uses DECO CPU-6 as custom module CPU (the same as Zoar, are we sure? our Zoar has different encryption, CPU-6 style)
533		GAME( 1981, progolfa, progolf, progolfa,progolf, progolf_state, progolfa, ROT270, "Data East Corporation", "18 Holes Pro Golf (set 2)", GAME_NOT_WORKING \| GAME_IMPERFECT_GRAPHICS \| GAME_NO_COCKTAIL )
	514	// this uses DECO CPU-6 as custom module CPU (the same as Zoar, are we sure? our Zoar has different encryption, CPU-7 style)
	515	GAME( 1981, progolfa, progolf, progolfa,progolf, driver_device, 0, ROT270, "Data East Corporation", "18 Holes Pro Golf (set 2)", GAME_NOT_WORKING \| GAME_IMPERFECT_GRAPHICS \| GAME_NO_COCKTAIL )

199869 Revisions