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r31725 Thursday 21st August, 2014 at 12:15:11 UTC by Osso
tc0480scp.c: added missing save states + small cleanup, improves but doesn't totally fix racingb save state (nw)

[src/mame/drivers]	taito_z.c
[src/mame/video]	tc0480scp.c tc0480scp.h

trunk/src/mame/drivers/taito_z.c

r31724	r31725
951	951
952	952	Graphics problems:
953	953	- tearing in the main road (tile layer 3 offset?)
954		likely cause is mame/video/taitoic.c in tc0480scp_bg23_draw:
	954	likely cause is mame/video/tc0480scp.c in bg23_draw:
955	955	** flawed calc ?? **
956		x_index -= (tc0480scp->x_offs - 0x1f + layer * 4) * ((row_zoom & 0xff) << 8);
	956	x_index -= (m_x_offset - 0x1f + layer * 4) * ((row_zoom & 0xff) << 8);
957	957	- car sprites palette flickering
958	958	- layer missing sometimes (random?) ie. motor block sprite after inserting coin
959	959

trunk/src/mame/video/tc0480scp.c

r31724	r31725
139	139
140	140	tc0480scp_device::tc0480scp_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
141	141	: device_t(mconfig, TC0480SCP, "Taito TC0480SCP", tag, owner, clock, "tc0480scp", __FILE__),
142		// m_ctrl[0x18](0),
143		m_ram(NULL),
144		//m_bg_ram[4](NULL),
145	142	m_tx_ram(NULL),
146	143	m_char_ram(NULL),
147		//m_bgscroll_ram[4](NULL),
148		//m_rowzoom_ram[4](NULL),
149		//m_bgcolumn_ram[4](NULL),
150		//m_bgscrollx[4](NULL),
151		//m_bgscrolly[4](NULL),
152	144	m_pri_reg(0),
153	145	m_dblwidth(0),
154	146	m_gfxnum(0),
r31724	r31725
163	155	m_gfxdecode(*this),
164	156	m_palette(*this)
165	157	{
	158	memset(m_ctrl, 0, sizeof(m_ctrl));
	159
	160	for (int i = 0; i < 4; i++)
	161	{
	162	m_bg_ram[i] = NULL;
	163	m_bgscroll_ram[i] = NULL;
	164	m_rowzoom_ram[i] = NULL;
	165	m_bgcolumn_ram[i] = NULL;
	166	m_bgscrollx[i] = NULL;
	167	m_bgscrolly[i] = NULL;
	168	}
166	169	}
167	170
168	171	//-------------------------------------------------
r31724	r31725
275	278	m_tilemap[3][i]->set_scroll_rows(512);
276	279	}
277	280
278		m_ram = auto_alloc_array_clear(machine(), UINT16, TC0480SCP_RAM_SIZE / 2);
279
	281	m_ram.resize_and_clear(TC0480SCP_RAM_SIZE / 2);
280	282	set_layer_ptrs();
281	283
282	284	/* create the char set (gfx will then be updated dynamically from RAM) */
283	285	m_gfxdecode->set_gfx(m_txnum, global_alloc(gfx_element(m_palette, tc0480scp_charlayout, (UINT8 *)m_char_ram, NATIVE_ENDIAN_VALUE_LE_BE(8,0), 64, 0)));
284	286
285		save_pointer(NAME(m_ram), TC0480SCP_RAM_SIZE / 2);
	287	save_item(NAME(m_ram));
286	288	save_item(NAME(m_ctrl));
	289	save_item(NAME(m_bgscrollx));
	290	save_item(NAME(m_bgscrolly));
	291	save_item(NAME(m_pri_reg));
287	292	save_item(NAME(m_dblwidth));
288	293	machine().save().register_postload(save_prepost_delegate(FUNC(tc0480scp_device::postload), this));
289	294	}

trunk/src/mame/video/tc0480scp.h

r31724	r31725
69	69	// internal state
70	70	UINT16           m_ctrl[0x18];
71	71
72		UINT16 *        m_ram;
	72	dynamic_array<UINT16> m_ram;
73	73	UINT16 *         m_bg_ram[4];
74	74	UINT16 *         m_tx_ram;
75	75	UINT16 *         m_char_ram;

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