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r30960 Friday 13th June, 2014 at 15:34:24 UTC by Carl
(mess) x68k: don't copy so much with the crtc text copy op (nw)

[src/mess/drivers]	x68k.c
[src/mess/includes]	x68k.h
[src/mess/video]	x68k.c

trunk/src/mess/includes/x68k.h

r30959	r30960
299	299	DECLARE_WRITE16_MEMBER(x68k_scc_w);
300	300	DECLARE_WRITE16_MEMBER(x68k_fdc_w);
301	301	DECLARE_READ16_MEMBER(x68k_fdc_r);
302		DECLARE_WRITE16_MEMBER(x68k_fm_w);
303		DECLARE_READ16_MEMBER(x68k_fm_r);
304	302	DECLARE_WRITE16_MEMBER(x68k_ioc_w);
305	303	DECLARE_READ16_MEMBER(x68k_ioc_r);
306	304	DECLARE_WRITE16_MEMBER(x68k_sysport_w);
r30959	r30960
336	334
337	335	private:
338	336	inline void x68k_plot_pixel(bitmap_rgb32 &bitmap, int x, int y, UINT32 color);
339		void x68k_crtc_text_copy(int src, int dest);
	337	void x68k_crtc_text_copy(int src, int dest, UINT8 planes);
340	338	void x68k_crtc_refresh_mode();
341	339	void x68k_draw_text(bitmap_rgb32 &bitmap, int xscr, int yscr, rectangle rect);
342	340	bool x68k_draw_gfx_scanline(bitmap_ind16 &bitmap, rectangle cliprect, UINT8 priority);

trunk/src/mess/video/x68k.c

r30959	r30960
24	24	1 sprite layer - up to 128 16x16 sprites, 16 colours per sprite, maximum 16 sprites per scanline (not yet implemented).
25	25
26	26	Questions: What do the other bits in m_video.reg[2] do?
	27	What is "special priority mode"?
27	28	How is the intensity applied during blending if at all?
28	29	Black appears to be opaque only at priority 2 but not 3, is that right?
29		How is the gfx layer cleared in pacland and text layer in akumajo?
30	30	Are the gfx layers blended from the bottom up or all at once?
31	31
32	32	*/
r30959	r30960
90	90	return NULL;  // should never reach here either.
91	91	}
92	92	*/
93		void x68k_state::x68k_crtc_text_copy(int src, int dest)
	93	void x68k_state::x68k_crtc_text_copy(int src, int dest, UINT8 planes)
94	94	{
95	95	// copys one raster in T-VRAM to another raster
96	96	int src_ram = src * 256;  // 128 bytes per scanline
97	97	int dest_ram = dest * 256;
98		int line;
99	98
100		if(dest > 250)
101		return;  // for some reason, Salamander causes a SIGSEGV in a debug build in this function.
102
103		for(line=0;line<8;line++)
104		{
105		// update RAM in each plane
106		memcpy(m_tvram+dest_ram,m_tvram+src_ram,128);
107		memcpy(m_tvram+dest_ram+0x10000,m_tvram+src_ram+0x10000,128);
108		memcpy(m_tvram+dest_ram+0x20000,m_tvram+src_ram+0x20000,128);
109		memcpy(m_tvram+dest_ram+0x30000,m_tvram+src_ram+0x30000,128);
110
111		src_ram+=64;
112		dest_ram+=64;
113		}
114
	99	// update RAM in each plane
	100	if(planes & 1)
	101	memcpy(m_tvram+dest_ram,m_tvram+src_ram,512);
	102	if(planes & 2)
	103	memcpy(m_tvram+dest_ram+0x10000,m_tvram+src_ram+0x10000,512);
	104	if(planes & 4)
	105	memcpy(m_tvram+dest_ram+0x20000,m_tvram+src_ram+0x20000,512);
	106	if(planes & 8)
	107	memcpy(m_tvram+dest_ram+0x30000,m_tvram+src_ram+0x30000,512);
115	108	}
116	109
117	110	TIMER_CALLBACK_MEMBER(x68k_state::x68k_crtc_operation_end)
r30959	r30960
188	181	m_crtc.hblank = hstate;
189	182	m_mfpdev->i7_w(!m_crtc.hblank);
190	183
191		if(m_crtc.operation & 8) // is this supposed to happen when the src or dest line is scanned?
192		x68k_crtc_text_copy((m_crtc.reg[22] & 0xff00) >> 8,(m_crtc.reg[22] & 0x00ff));
	184	if(m_crtc.operation & 8)
	185	x68k_crtc_text_copy((m_crtc.reg[22] & 0xff00) >> 8,(m_crtc.reg[22] & 0x00ff),(m_crtc.reg[21] & 0xf));
193	186
194	187	if(m_crtc.vmultiple == 2) // 256-line (doublescan)
195	188	{

trunk/src/mess/drivers/x68k.c

r30959	r30960
107	107	Dragon Buster: Text is black and unreadable. (Text layer actually covers it)
108	108	Tetris:        Black dots over screen (text layer).
109	109	Parodius Da!:  Black squares in areas.
110		Akumajo Drac:  no sfx starting on second stage (m68000 only, 030 is fine), simon sprite flickers
111	110
112
113	111	More detailed documentation at http://x68kdev.emuvibes.com/iomap.html - if you can stand broken english :)
114	112
115	113	*/
r30959	r30960
709	707	m_maincpu->set_input_line(1, CLEAR_LINE);
710	708	}
711	709
712		WRITE16_MEMBER(x68k_state::x68k_fm_w)
713		{
714		switch(offset)
715		{
716		case 0x00:
717		case 0x01:
718		m_ym2151->write(space, offset, data);
719		break;
720		}
721		}
722
723		READ16_MEMBER(x68k_state::x68k_fm_r)
724		{
725		if(offset == 0x01)
726		return m_ym2151->read(space, 1);
727
728		return 0xffff;
729		}
730
731	710	WRITE8_MEMBER(x68k_state::x68k_ct_w)
732	711	{
733	712	// CT1 and CT2 bits from YM2151 port 0x1b
r30959	r30960
1165	1144	AM_RANGE(0xe8a000, 0xe8bfff) AM_DEVREADWRITE8(RP5C15_TAG, rp5c15_device, read, write, 0x00ff)
1166	1145	//  AM_RANGE(0xe8c000, 0xe8dfff) AM_READWRITE(x68k_printer_r, x68k_printer_w)
1167	1146	AM_RANGE(0xe8e000, 0xe8ffff) AM_READWRITE(x68k_sysport_r, x68k_sysport_w)
1168		AM_RANGE(0xe90000, 0xe91fff) AM_READWRITE(x68k_fm_r, x68k_fm_w)
	1147	AM_RANGE(0xe90000, 0xe91fff) AM_DEVREADWRITE8("ym2151", ym2151_device, read, write, 0x00ff)
1169	1148	AM_RANGE(0xe92000, 0xe92001) AM_DEVREADWRITE8("okim6258", okim6258_device, okim6258_status_r, okim6258_ctrl_w, 0x00ff)
1170	1149	AM_RANGE(0xe92002, 0xe92003) AM_DEVREADWRITE8("okim6258", okim6258_device, okim6258_status_r, okim6258_data_w, 0x00ff)
1171	1150	AM_RANGE(0xe94000, 0xe94003) AM_DEVICE8("upd72065", upd72065_device, map, 0x00ff)
r30959	r30960
1202	1181	AM_RANGE(0xe8a000, 0xe8bfff) AM_DEVREADWRITE8(RP5C15_TAG, rp5c15_device, read, write, 0x00ff)
1203	1182	//  AM_RANGE(0xe8c000, 0xe8dfff) AM_READWRITE(x68k_printer_r, x68k_printer_w)
1204	1183	AM_RANGE(0xe8e000, 0xe8ffff) AM_READWRITE(x68k_sysport_r, x68k_sysport_w)
1205		AM_RANGE(0xe90000, 0xe91fff) AM_READWRITE(x68k_fm_r, x68k_fm_w)
	1184	AM_RANGE(0xe90000, 0xe91fff) AM_DEVREADWRITE8("ym2151", ym2151_device, read, write, 0x00ff)
1206	1185	AM_RANGE(0xe92000, 0xe92001) AM_DEVREADWRITE8("okim6258", okim6258_device, okim6258_status_r, okim6258_ctrl_w, 0x00ff)
1207	1186	AM_RANGE(0xe92002, 0xe92003) AM_DEVREADWRITE8("okim6258", okim6258_device, okim6258_status_r, okim6258_data_w, 0x00ff)
1208	1187	AM_RANGE(0xe94000, 0xe94003) AM_DEVICE8("upd72065", upd72065_device, map, 0x00ff)
r30959	r30960
1241	1220	AM_RANGE(0xe8a000, 0xe8bfff) AM_DEVREADWRITE8(RP5C15_TAG, rp5c15_device, read, write, 0x00ff00ff)
1242	1221	//  AM_RANGE(0xe8c000, 0xe8dfff) AM_READWRITE(x68k_printer_r, x68k_printer_w)
1243	1222	AM_RANGE(0xe8e000, 0xe8ffff) AM_READWRITE16(x68k_sysport_r, x68k_sysport_w,0xffffffff)
1244		AM_RANGE(0xe90000, 0xe91fff) AM_READWRITE16(x68k_fm_r, x68k_fm_w,0xffffffff)
	1223	AM_RANGE(0xe90000, 0xe91fff) AM_DEVREADWRITE8("ym2151", ym2151_device, read, write, 0x00ff00ff)
1245	1224	AM_RANGE(0xe92000, 0xe92003) AM_DEVREAD8("okim6258", okim6258_device, okim6258_status_r, 0x00ff00ff) AM_WRITE8(x68030_adpcm_w, 0x00ff00ff)
1246	1225	AM_RANGE(0xe94000, 0xe94003) AM_DEVICE8("upd72065", upd72065_device, map, 0x00ff00ff)
1247	1226	AM_RANGE(0xe94004, 0xe94007) AM_READWRITE16(x68k_fdc_r, x68k_fdc_w,0xffffffff)

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