MAME SVN History

199869 Revisions

r33186 Tuesday 4th November, 2014 at 00:51:52 UTC by David Haywood
just test code (nw)

trunk/src/mame/drivers/stv.c
r241697	r241698
1023	1023	MCFG_SOUND_ROUTE(1, "rspeaker", 1.0)
1024	1024
1025	1025	MCFG_DEVICE_ADD("315_5881", SEGA315_5881_CRYPT, 0)
1026		//MCFG_SET_READ_CALLBACK(stv_state, read_callback)
	1026	MCFG_SET_READ_CALLBACK(stv_state, crypt_read_callback)
1027	1027	MACHINE_CONFIG_END
1028	1028
1029	1029	/*

trunk/src/mame/includes/stv.h
r241697	r241698
35	35	m_cart3(*this, "stv_slot3"),
36	36	m_cart4(*this, "stv_slot4"),
37	37	m_gfxdecode(*this, "gfxdecode"),
38		m_palette(*this, "palette"),
39		m_cryptdevice(*this, "315_5881")
	38	m_palette(*this, "palette")
40	39	{
41	40	}
42	41
r241697	r241698
170	169	required_device<gfxdecode_device> m_gfxdecode;
171	170	required_device<palette_device> m_palette;
172	171
173		optional_device<sega_315_5881_crypt_device> m_cryptdevice;
174	172
175	173
176	174	bitmap_rgb32 m_tmpbitmap;
r241697	r241698
700	698	stv_state(const machine_config &mconfig, device_type type, const char *tag)
701	699	: saturn_state(mconfig, type, tag),
702	700	m_adsp(*this, "adsp"),
703		m_adsp_pram(*this, "adsp_pram")
	701	m_adsp_pram(*this, "adsp_pram"),
	702	m_cryptdevice(*this, "315_5881")
704	703	{
705	704	}
706	705
r241697	r241698
835	834	DECLARE_WRITE32_MEMBER( decathlt_prot2_w );
836	835	void write_prot_data(UINT32 data, UINT32 mem_mask, int offset, int which);
837	836	void install_decathlt_protection();
	837
	838	optional_device<sega_315_5881_crypt_device> m_cryptdevice;
	839	UINT16 crypt_read_callback(UINT32 addr);
838	840	};
839	841
840	842

trunk/src/mame/machine/315-5881_crypt.c
r241697	r241698
65	65	buffer_bit = 0;
66	66	}
67	67
68		~~void~~ sega_315_5881_crypt_device::do_decrypt(UINT8 *&base)
	68	UINT16 sega_315_5881_crypt_device::do_decrypt(UINT8 *&base)
69	69	{
70	70	if(!enc_ready)
71	71	enc_start();
r241697	r241698
80	80	base = buffer + buffer_pos;
81	81	buffer_pos += 2;
82	82	}
	83
	84	return (base[0] << 8) \| base[1];
83	85	}
84	86
85	87	void sega_315_5881_crypt_device::set_addr_low(UINT16 data)

trunk/src/mame/machine/315-5881_crypt.h
r241697	r241698
19	19	sega_315_5881_crypt_device(const machine_config &mconfig, const char tag, device_t owner, UINT32 clock);
20	20
21	21
22		~~void~~ do_decrypt(UINT8 *&base);
	22	UINT16 do_decrypt(UINT8 *&base);
23	23	void set_addr_low(UINT16 data);
24	24	void set_addr_high(UINT16 data);
25	25	void set_subkey(UINT16 data);

trunk/src/mame/machine/stvprot.c
r241697	r241698
590	590
591	591	logerror("A-Bus control protection read at %06x with data = %08x Returning = %08x Would otherwise return = %08x\n",space.device().safe_pc(),m_abus_protkey, retdata, realret);
592	592
	593	//UINT16 res = m_cryptdevice->do_decrypt(base);
	594
593	595	m_ctrl_index += 4;
594	596	return retdata;
595	597
r241697	r241698
604	606	}
605	607
606	608
	609	UINT16 stv_state::crypt_read_callback(UINT32 addr)
	610	{
	611	const UINT8 base = m_cart_reg[0]->base() + 2addr;
	612	return base[1] \| (base[0] << 8);
	613	}
607	614
608
609	615	WRITE32_MEMBER ( stv_state::common_prot_w )
610	616	{
611	617	COMBINE_DATA(&m_a_bus[offset]);
r241697	r241698
627	633	{
628	634	COMBINE_DATA(&m_abus_protkey);
629	635
630		m_cryptdevice->set_subkey(m_abus_protkey);
	636	m_cryptdevice->set_subkey(m_abus_protkey>>16);
631	637
632	638
633	639	int a_bus_vector;
r241697	r241698
665	671	{
666	672	install_common_protection();
667	673	m_prot_readback = astrass_prot_read_callback;
	674	// m_cryptdevice->set_key(0x00000000);
668	675	}
669	676
670	677	void stv_state::install_ffreveng_protection()

199869 Revisions