MESS SVN History

15994 Revisions

r1007 Wednesday 19th September, 2007 at 11:35:06 UTC by Curt Coder
[ATARIST] Added blitter skeleton

[src/mess/drivers]	atarist.c
[src/mess/video]	atarist.c atarist.h

src/mess/video/atarist.c
r1006	r1007
176	176	}
177	177	}
178	178
179		/* Atari ST */
	179	/* Atari ST Shifter */
180	180
181	181	READ16_HANDLER( atarist_shifter_base_r )
182	182	{
r1006	r1007
256	256	palette_set_color_rgb(Machine, offset, pal3bit(data >> 8), pal3bit(data >> 4), pal3bit(data));
257	257	}
258	258
259		/* Atari STe */
	259	/* Atari STe Shifter */
260	260
261	261	READ16_HANDLER( atariste_shifter_base_low_r )
262	262	{
r1006	r1007
337	337	logerror("SHIFTER Pixel Offset %x\n", shifter.pixelofs);
338	338	}
339	339
	340	/* Atari ST Blitter */
	341
	342	static struct BLITTER
	343	{
	344	UINT16 halftone[16];
	345	UINT16 src_inc_x, src_inc_y, dst_inc_x, dst_inc_y;
	346	UINT32 src, dst;
	347	UINT16 endmask_l, endmask_m, endmask_r;
	348	UINT16 x, y;
	349	UINT8 hop, lop, ctrl, skew;
	350	} blitter;
	351
	352	READ16_HANDLER( atarist_blitter_halftone_r )
	353	{
	354	return blitter.halftone[offset];
	355	}
	356
	357	READ16_HANDLER( atarist_blitter_src_inc_x_r )
	358	{
	359	return blitter.src_inc_x;
	360	}
	361
	362	READ16_HANDLER( atarist_blitter_src_inc_y_r )
	363	{
	364	return blitter.src_inc_y;
	365	}
	366
	367	READ16_HANDLER( atarist_blitter_src_r )
	368	{
	369	switch (offset)
	370	{
	371	case 0:
	372	return (blitter.src >> 16) & 0xff;
	373	case 1:
	374	return blitter.src & 0xfffe;
	375	}
	376
	377	return 0;
	378	}
	379
	380	READ16_HANDLER( atarist_blitter_end_mask_r )
	381	{
	382	switch (offset)
	383	{
	384	case 0:
	385	return blitter.endmask_l;
	386	case 1:
	387	return blitter.endmask_m;
	388	case 2:
	389	return blitter.endmask_r;
	390	}
	391
	392	return 0;
	393	}
	394
	395	READ16_HANDLER( atarist_blitter_dst_inc_x_r )
	396	{
	397	return blitter.dst_inc_x;
	398	}
	399
	400	READ16_HANDLER( atarist_blitter_dst_inc_y_r )
	401	{
	402	return blitter.dst_inc_y;
	403	}
	404
	405	READ16_HANDLER( atarist_blitter_dst_r )
	406	{
	407	switch (offset)
	408	{
	409	case 0:
	410	return (blitter.dst >> 16) & 0xff;
	411	case 1:
	412	return blitter.dst & 0xfffe;
	413	}
	414
	415	return 0;
	416	}
	417
	418	READ16_HANDLER( atarist_blitter_count_x_r )
	419	{
	420	return blitter.x;
	421	}
	422
	423	READ16_HANDLER( atarist_blitter_count_y_r )
	424	{
	425	return blitter.y;
	426	}
	427
	428	READ16_HANDLER( atarist_blitter_op_r )
	429	{
	430	if (mem_mask == 0xff00)
	431	{
	432	return blitter.hop;
	433	}
	434	else
	435	{
	436	return blitter.lop;
	437	}
	438	}
	439
	440	READ16_HANDLER( atarist_blitter_ctrl_r )
	441	{
	442	if (mem_mask == 0xff00)
	443	{
	444	return blitter.ctrl;
	445	}
	446	else
	447	{
	448	return blitter.skew;
	449	}
	450	}
	451
	452	WRITE16_HANDLER( atarist_blitter_halftone_w )
	453	{
	454	blitter.halftone[offset] = data;
	455	}
	456
	457	WRITE16_HANDLER( atarist_blitter_src_inc_x_w )
	458	{
	459	blitter.src_inc_x = data;
	460	}
	461
	462	WRITE16_HANDLER( atarist_blitter_src_inc_y_w )
	463	{
	464	blitter.src_inc_y = data;
	465	}
	466
	467	WRITE16_HANDLER( atarist_blitter_src_w )
	468	{
	469	switch (offset)
	470	{
	471	case 0:
	472	blitter.src = (data & 0xff) \| (blitter.src & 0xfffe);
	473	case 1:
	474	blitter.src = (blitter.src & 0xff0000) \| (data & 0xfffe);
	475	}
	476	}
	477
	478	WRITE16_HANDLER( atarist_blitter_end_mask_w )
	479	{
	480	switch (offset)
	481	{
	482	case 0:
	483	blitter.endmask_l = data;
	484	case 1:
	485	blitter.endmask_m = data;
	486	case 2:
	487	blitter.endmask_r = data;
	488	}
	489	}
	490
	491	WRITE16_HANDLER( atarist_blitter_dst_inc_x_w )
	492	{
	493	blitter.dst_inc_x = data;
	494	}
	495
	496	WRITE16_HANDLER( atarist_blitter_dst_inc_y_w )
	497	{
	498	blitter.dst_inc_y = data;
	499	}
	500
	501	WRITE16_HANDLER( atarist_blitter_dst_w )
	502	{
	503	switch (offset)
	504	{
	505	case 0:
	506	blitter.dst = (data & 0xff) \| (blitter.dst & 0xfffe);
	507	case 1:
	508	blitter.dst = (blitter.dst & 0xff0000) \| (data & 0xfffe);
	509	}
	510	}
	511
	512	WRITE16_HANDLER( atarist_blitter_count_x_w )
	513	{
	514	blitter.x = data;
	515	}
	516
	517	WRITE16_HANDLER( atarist_blitter_count_y_w )
	518	{
	519	blitter.y = data;
	520	}
	521
	522	WRITE16_HANDLER( atarist_blitter_op_w )
	523	{
	524	if (mem_mask == 0xff00)
	525	{
	526	blitter.hop = data >> 8;
	527	}
	528	else
	529	{
	530	blitter.lop = data;
	531	}
	532	}
	533
	534	WRITE16_HANDLER( atarist_blitter_ctrl_w )
	535	{
	536	if (mem_mask == 0xff00)
	537	{
	538	blitter.ctrl = data >> 8;
	539	}
	540	else
	541	{
	542	blitter.skew = data;
	543	}
	544	}
	545
	546	/* Video */
	547
340	548	VIDEO_START( atarist )
341	549	{
342	550	atarist_shifter_timer = mame_timer_alloc(atarist_shifter_tick);
r1006	r1007
362	570	state_save_register_global(shifter.shift);
363	571	state_save_register_global(shifter.h);
364	572	state_save_register_global(shifter.v);
	573
	574	state_save_register_global_array(blitter.halftone);
	575	state_save_register_global(blitter.src_inc_x);
	576	state_save_register_global(blitter.src_inc_y);
	577	state_save_register_global(blitter.dst_inc_x);
	578	state_save_register_global(blitter.dst_inc_y);
	579	state_save_register_global(blitter.src);
	580	state_save_register_global(blitter.dst);
	581	state_save_register_global(blitter.endmask_l);
	582	state_save_register_global(blitter.endmask_m);
	583	state_save_register_global(blitter.endmask_r);
	584	state_save_register_global(blitter.x);
	585	state_save_register_global(blitter.y);
	586	state_save_register_global(blitter.hop);
	587	state_save_register_global(blitter.lop);
	588	state_save_register_global(blitter.ctrl);
	589	state_save_register_global(blitter.skew);
	590
365	591	state_save_register_bitmap("video", 0, "atarist_bitmap", atarist_bitmap);
366	592	}
367	593

src/mess/video/atarist.h
r1006	r1007
28	28	#define ATARIST_VBDEND_NTSC 34
29	29	#define ATARIST_VBDSTART_NTSC 234
30	30
	31	#define ATARIST_BLITTER_SKEW_NFSR 0x40
	32	#define ATARIST_BLITTER_SKEW_FXSR 0x80
	33
	34	/* Atari ST Shifter */
	35
31	36	READ16_HANDLER( atarist_shifter_base_r );
32		WRITE16_HANDLER( atarist_shifter_base_w );
33	37	READ16_HANDLER( atarist_shifter_counter_r );
34	38	READ16_HANDLER( atarist_shifter_sync_r );
	39	READ16_HANDLER( atarist_shifter_palette_r );
	40	READ16_HANDLER( atarist_shifter_mode_r );
	41
	42	WRITE16_HANDLER( atarist_shifter_base_w );
35	43	WRITE16_HANDLER( atarist_shifter_sync_w );
36		READ16_HANDLER( atarist_shifter_palette_r );
37	44	WRITE16_HANDLER( atarist_shifter_palette_w );
38		READ16_HANDLER( atarist_shifter_mode_r );
39	45	WRITE16_HANDLER( atarist_shifter_mode_w );
40	46
	47	/* Atari STe Shifter */
	48
41	49	READ16_HANDLER( atariste_shifter_base_low_r );
	50	READ16_HANDLER( atariste_shifter_counter_r );
	51	READ16_HANDLER( atariste_shifter_lineofs_r );
	52	READ16_HANDLER( atariste_shifter_pixelofs_r );
	53	READ16_HANDLER( atariste_shifter_palette_r );
	54
42	55	WRITE16_HANDLER( atariste_shifter_base_low_w );
43		READ16_HANDLER( atariste_shifter_counter_r );
44	56	WRITE16_HANDLER( atariste_shifter_counter_w );
45		READ16_HANDLER( atariste_shifter_lineofs_r );
46	57	WRITE16_HANDLER( atariste_shifter_lineofs_w );
47		READ16_HANDLER( atariste_shifter_pixelofs_r );
48	58	WRITE16_HANDLER( atariste_shifter_pixelofs_w );
49		READ16_HANDLER( atariste_shifter_palette_r );
50	59	WRITE16_HANDLER( atariste_shifter_palette_w );
51	60
	61	/* Atari ST Blitter */
	62
	63	READ16_HANDLER( atarist_blitter_halftone_r );
	64	READ16_HANDLER( atarist_blitter_src_inc_x_r );
	65	READ16_HANDLER( atarist_blitter_src_inc_y_r );
	66	READ16_HANDLER( atarist_blitter_src_r );
	67	READ16_HANDLER( atarist_blitter_end_mask_r );
	68	READ16_HANDLER( atarist_blitter_dst_inc_x_r );
	69	READ16_HANDLER( atarist_blitter_dst_inc_y_r );
	70	READ16_HANDLER( atarist_blitter_dst_r );
	71	READ16_HANDLER( atarist_blitter_count_x_r );
	72	READ16_HANDLER( atarist_blitter_count_y_r );
	73	READ16_HANDLER( atarist_blitter_op_r );
	74	READ16_HANDLER( atarist_blitter_ctrl_r );
	75
	76	WRITE16_HANDLER( atarist_blitter_halftone_w );
	77	WRITE16_HANDLER( atarist_blitter_src_inc_x_w );
	78	WRITE16_HANDLER( atarist_blitter_src_inc_y_w );
	79	WRITE16_HANDLER( atarist_blitter_src_w );
	80	WRITE16_HANDLER( atarist_blitter_end_mask_w );
	81	WRITE16_HANDLER( atarist_blitter_dst_inc_x_w );
	82	WRITE16_HANDLER( atarist_blitter_dst_inc_y_w );
	83	WRITE16_HANDLER( atarist_blitter_dst_w );
	84	WRITE16_HANDLER( atarist_blitter_count_x_w );
	85	WRITE16_HANDLER( atarist_blitter_count_y_w );
	86	WRITE16_HANDLER( atarist_blitter_op_w );
	87	WRITE16_HANDLER( atarist_blitter_ctrl_w );
	88
	89	/* Video */
	90
52	91	VIDEO_START( atarist );
53	92	VIDEO_UPDATE( atarist );
54	93

src/mess/drivers/atarist.c
r1006	r1007
577	577	AM_RANGE(0xff8608, 0xff860d) AM_READWRITE(atarist_fdc_dma_base_r, atarist_fdc_dma_base_w)
578	578	AM_RANGE(0xff8800, 0xff8801) AM_READWRITE(AY8910_read_port_0_msb_r, AY8910_control_port_0_msb_w)
579	579	AM_RANGE(0xff8802, 0xff8803) AM_WRITE(AY8910_write_port_0_msb_w)
580		// AM_RANGE(0xff8a00, 0xff8a3f) AM_READWRITE(atarist_blitter_r, atarist_blitter_w)
	580	AM_RANGE(0xff8a00, 0xff8a1f) AM_READWRITE(atarist_blitter_halftone_r, atarist_blitter_halftone_w)
	581	AM_RANGE(0xff8a20, 0xff8a21) AM_READWRITE(atarist_blitter_src_inc_x_r, atarist_blitter_src_inc_x_w)
	582	AM_RANGE(0xff8a22, 0xff8a23) AM_READWRITE(atarist_blitter_src_inc_y_r, atarist_blitter_src_inc_y_w)
	583	AM_RANGE(0xff8a24, 0xff8a27) AM_READWRITE(atarist_blitter_src_r, atarist_blitter_src_w)
	584	AM_RANGE(0xff8a28, 0xff8a2d) AM_READWRITE(atarist_blitter_end_mask_r, atarist_blitter_end_mask_w)
	585	AM_RANGE(0xff8a2e, 0xff8a2f) AM_READWRITE(atarist_blitter_dst_inc_x_r, atarist_blitter_dst_inc_x_w)
	586	AM_RANGE(0xff8a30, 0xff8a31) AM_READWRITE(atarist_blitter_dst_inc_y_r, atarist_blitter_dst_inc_y_w)
	587	AM_RANGE(0xff8a32, 0xff8a35) AM_READWRITE(atarist_blitter_dst_r, atarist_blitter_dst_w)
	588	AM_RANGE(0xff8a36, 0xff8a37) AM_READWRITE(atarist_blitter_count_x_r, atarist_blitter_count_x_w)
	589	AM_RANGE(0xff8a38, 0xff8a39) AM_READWRITE(atarist_blitter_count_y_r, atarist_blitter_count_y_w)
	590	AM_RANGE(0xff8a3a, 0xff8a3b) AM_READWRITE(atarist_blitter_op_r, atarist_blitter_op_w)
	591	AM_RANGE(0xff8a3c, 0xff8a3d) AM_READWRITE(atarist_blitter_ctrl_r, atarist_blitter_ctrl_w)
581	592	AM_RANGE(0xfffa00, 0xfffa3f) AM_READWRITE(mfp68901_0_register_lsb_r, mfp68901_0_register_msb_w)
582	593	AM_RANGE(0xfffc00, 0xfffc01) AM_READWRITE(acia6850_0_stat_msb_r, acia6850_0_ctrl_msb_w)
583	594	AM_RANGE(0xfffc02, 0xfffc03) AM_READWRITE(acia6850_0_data_msb_r, acia6850_0_data_msb_w)
r1006	r1007
614	625	// AM_RANGE(0xff8920, 0xff8920) AM_READWRITE(atariste_sound_mode_r, atariste_sound_mode_w)
615	626	AM_RANGE(0xff8922, 0xff8923) AM_READWRITE(atariste_microwire_data_r, atariste_microwire_data_w)
616	627	AM_RANGE(0xff8924, 0xff8925) AM_READWRITE(atariste_microwire_mask_r, atariste_microwire_mask_w)
617		// AM_RANGE(0xff8a00, 0xff8a3f) AM_READWRITE(atariste_blitter_r, atariste_blitter_w)
	628	AM_RANGE(0xff8a00, 0xff8a1f) AM_READWRITE(atarist_blitter_halftone_r, atarist_blitter_halftone_w)
	629	AM_RANGE(0xff8a20, 0xff8a21) AM_READWRITE(atarist_blitter_src_inc_x_r, atarist_blitter_src_inc_x_w)
	630	AM_RANGE(0xff8a22, 0xff8a23) AM_READWRITE(atarist_blitter_src_inc_y_r, atarist_blitter_src_inc_y_w)
	631	AM_RANGE(0xff8a24, 0xff8a27) AM_READWRITE(atarist_blitter_src_r, atarist_blitter_src_w)
	632	AM_RANGE(0xff8a28, 0xff8a2d) AM_READWRITE(atarist_blitter_end_mask_r, atarist_blitter_end_mask_w)
	633	AM_RANGE(0xff8a2e, 0xff8a2f) AM_READWRITE(atarist_blitter_dst_inc_x_r, atarist_blitter_dst_inc_x_w)
	634	AM_RANGE(0xff8a30, 0xff8a31) AM_READWRITE(atarist_blitter_dst_inc_y_r, atarist_blitter_dst_inc_y_w)
	635	AM_RANGE(0xff8a32, 0xff8a35) AM_READWRITE(atarist_blitter_dst_r, atarist_blitter_dst_w)
	636	AM_RANGE(0xff8a36, 0xff8a37) AM_READWRITE(atarist_blitter_count_x_r, atarist_blitter_count_x_w)
	637	AM_RANGE(0xff8a38, 0xff8a39) AM_READWRITE(atarist_blitter_count_y_r, atarist_blitter_count_y_w)
	638	AM_RANGE(0xff8a3a, 0xff8a3b) AM_READWRITE(atarist_blitter_op_r, atarist_blitter_op_w)
	639	AM_RANGE(0xff8a3c, 0xff8a3d) AM_READWRITE(atarist_blitter_ctrl_r, atarist_blitter_ctrl_w)
618	640	AM_RANGE(0xff9200, 0xff9201) AM_READ(port_tag_to_handler16("JOY0"))
619	641	AM_RANGE(0xff9202, 0xff9203) AM_READ(port_tag_to_handler16("JOY1"))
620	642	AM_RANGE(0xff9210, 0xff9211) AM_READ(port_tag_to_handler16("PADDLE0X"))
r1006	r1007
658	680	// AM_RANGE(0xff8920, 0xff8920) AM_READWRITE(atariste_sound_mode_r, atariste_sound_mode_w)
659	681	AM_RANGE(0xff8922, 0xff8923) AM_READWRITE(atariste_microwire_data_r, atariste_microwire_data_w)
660	682	AM_RANGE(0xff8924, 0xff8925) AM_READWRITE(atariste_microwire_mask_r, atariste_microwire_mask_w)
661		// AM_RANGE(0xff8a00, 0xff8a3f) AM_READWRITE(atariste_blitter_r, atariste_blitter_w)
	683	AM_RANGE(0xff8a00, 0xff8a1f) AM_READWRITE(atarist_blitter_halftone_r, atarist_blitter_halftone_w)
	684	AM_RANGE(0xff8a20, 0xff8a21) AM_READWRITE(atarist_blitter_src_inc_x_r, atarist_blitter_src_inc_x_w)
	685	AM_RANGE(0xff8a22, 0xff8a23) AM_READWRITE(atarist_blitter_src_inc_y_r, atarist_blitter_src_inc_y_w)
	686	AM_RANGE(0xff8a24, 0xff8a27) AM_READWRITE(atarist_blitter_src_r, atarist_blitter_src_w)
	687	AM_RANGE(0xff8a28, 0xff8a2d) AM_READWRITE(atarist_blitter_end_mask_r, atarist_blitter_end_mask_w)
	688	AM_RANGE(0xff8a2e, 0xff8a2f) AM_READWRITE(atarist_blitter_dst_inc_x_r, atarist_blitter_dst_inc_x_w)
	689	AM_RANGE(0xff8a30, 0xff8a31) AM_READWRITE(atarist_blitter_dst_inc_y_r, atarist_blitter_dst_inc_y_w)
	690	AM_RANGE(0xff8a32, 0xff8a35) AM_READWRITE(atarist_blitter_dst_r, atarist_blitter_dst_w)
	691	AM_RANGE(0xff8a36, 0xff8a37) AM_READWRITE(atarist_blitter_count_x_r, atarist_blitter_count_x_w)
	692	AM_RANGE(0xff8a38, 0xff8a39) AM_READWRITE(atarist_blitter_count_y_r, atarist_blitter_count_y_w)
	693	AM_RANGE(0xff8a3a, 0xff8a3b) AM_READWRITE(atarist_blitter_op_r, atarist_blitter_op_w)
	694	AM_RANGE(0xff8a3c, 0xff8a3d) AM_READWRITE(atarist_blitter_ctrl_r, atarist_blitter_ctrl_w)
662	695	// AM_RANGE(0xff8e20, 0xff8e21) AM_READWRITE(megaste_cache_r, megaste_cache_w)
663	696	AM_RANGE(0xfffa00, 0xfffa3f) AM_READWRITE(mfp68901_0_register_lsb_r, mfp68901_0_register_msb_w)
664	697	// AM_RANGE(0xfffa40, 0xfffa5f) AM_READWRITE(megaste_fpu_r, megaste_fpu_w)

15994 Revisions