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r1978 Thursday 13th March, 2008 at 05:58:40 UTC by Robbbert
[MBEE] Added Microbee Standard 16k

[src/mess]	messdriv.c
[src/mess/drivers]	mbee.c
[src/mess/includes]	mbee.h
[src/mess/machine]	mbee.c
[src/mess/video]	mbee.c

src/mess/includes/mbee.h

r1977	r1978
12	12
13	13	MACHINE_RESET( mbee );
14	14	MACHINE_START( mbee );
15		MACHINE_START( mbee56 );
16	15
17	16	extern UINT8 *mbee_workram;
18	17	READ8_HANDLER( mbee_lowram_r );
r1977	r1978
53	52	READ8_HANDLER ( mbee_pcg_color_r );
54	53	WRITE8_HANDLER ( mbee_pcg_color_w );
55	54
	55	READ8_HANDLER ( mbee_pcg_r );
	56	WRITE8_HANDLER ( mbee_pcg_w );
	57
56	58	VIDEO_START( mbee );
57	59	VIDEO_UPDATE( mbee );
58	60
	61	VIDEO_START( mbeeic );
	62	VIDEO_UPDATE( mbeeic );
59	63
	64
60	65	#endif /* MBEE_H_ */

src/mess/video/mbee.c

r1977	r1978
60	60
61	61	READ8_HANDLER ( mbee_pcg_color_latch_r )
62	62	{
63		int data = mbee_pcg_color_latch;
64		return data;
	63	return mbee_pcg_color_latch;
65	64	}
66	65
67	66	WRITE8_HANDLER ( mbee_videoram_w )
r1977	r1978
71	70
72	71	READ8_HANDLER ( mbee_videoram_r )
73	72	{
74		int data;
75	73	if( m6545_video_bank & 0x01 )
76		{
77		data = pcgram[offset];
78		}
	74	return pcgram[offset];
79	75	else
80		{
81		data = videoram[offset];
	76	return videoram[offset];
	77	}
	78
	79	WRITE8_HANDLER ( mbee_pcg_w )
	80	{
	81	if( pcgram[0x0800+offset] != data )
	82	{
	83	int chr = 0x80 + offset / 16;
	84	pcgram[0x0800+offset] = data;
	85	/* decode character graphics again */
	86	decodechar(machine->gfx[0], chr, pcgram);
82	87	}
83		return data;
84	88	}
85	89
	90	READ8_HANDLER ( mbee_pcg_r )
	91	{
	92	return pcgram[0x0800+offset];
	93	}
	94
86	95	WRITE8_HANDLER ( mbee_pcg_color_w )
87	96	{
88	97	if( (m6545_video_bank & 0x01) || (mbee_pcg_color_latch & 0x40) == 0 )
r1977	r1978
219	228	{
220	229	/* These are write only on a Rockwell 6545 */
221	230	#if 0
222		case 0:
	231	case 0:
223	232	return crt.horizontal_total;
224	233	case 1:
225	234	return crt.horizontal_displayed;
r1977	r1978
257	266	case 16:
258	267	//      logerror("6545 lpen_hi_r $%02X (lpen:%d upd:%d)\n", crt.lpen_hi, crt.lpen_strobe, crt.update_strobe);
259	268	crt.lpen_strobe = 0;
260		crt.update_strobe = 0;
	269	crt.update_strobe = 0;
261	270	data = crt.lpen_hi;
262	271	break;
263	272	case 17:
264	273	//      logerror("6545 lpen_lo_r $%02X (lpen:%d upd:%d)\n", crt.lpen_lo, crt.lpen_strobe, crt.update_strobe);
265		crt.lpen_strobe = 0;
	274	crt.lpen_strobe = 0;
266	275	crt.update_strobe = 0;
267	276	data = crt.lpen_lo;
268	277	break;
r1977	r1978
276	285	break;
277	286	case 31:
278	287	/* shared memory latch */
279		addr = crt.transp_hi * 256 + crt.transp_lo;
	288	addr = (crt.transp_hi << 8) | crt.transp_lo;
280	289	//      logerror("6545 transp_latch $%04X\n", addr);
281	290	m6545_update_strobe(addr);
282	291	break;
r1977	r1978
304	313	m6545_offset_xy();
305	314	break;
306	315	case 1:
307		if( crt.horizontal_displayed == data )
308		break;
309	316	crt.horizontal_displayed = data;
310	317	break;
311	318	case 2:
r1977	r1978
330	337	m6545_offset_xy();
331	338	break;
332	339	case 6:
333		if( crt.vertical_displayed == data )
334		break;
335	340	crt.vertical_displayed = data;
336	341	break;
337	342	case 7:
r1977	r1978
361	366	m6545_offset_xy();
362	367	break;
363	368	case 10:
364		if( crt.cursor_top == data )
365		break;
366	369	crt.cursor_top = data;
367		addr = 256 * crt.cursor_address_hi + crt.cursor_address_lo;
368	370	break;
369	371	case 11:
370		if( crt.cursor_bottom == data )
371		break;
372	372	crt.cursor_bottom = data;
373		addr = 256 * crt.cursor_address_hi + crt.cursor_address_lo;
374	373	break;
375	374	case 12:
376	375	data &= 63;
r1977	r1978
391	390	break;
392	391	case 14:
393	392	data &= 63;
394		if( crt.cursor_address_hi == data )
395		break;
396	393	crt.cursor_address_hi = data;
397		addr = 256 * crt.cursor_address_hi + crt.cursor_address_lo;
398	394	break;
399	395	case 15:
400		if( crt.cursor_address_lo == data )
401		break;
402	396	crt.cursor_address_lo = data;
403		addr = 256 * crt.cursor_address_hi + crt.cursor_address_lo;
404	397	break;
405	398	case 16:
406	399	/* lpen hi is read only */
r1977	r1978
410	403	break;
411	404	case 18:
412	405	data &= 63;
413		if( crt.transp_hi == data )
414		break;
415	406	crt.transp_hi = data;
416	407	//      logerror("6545 transp_hi_w $%02X\n", data);
417	408	break;
418	409	case 19:
419		if( crt.transp_lo == data )
420		break;
421	410	crt.transp_lo = data;
422	411	//      logerror("6545 transp_lo_w $%02X\n", data);
423	412	break;
424	413	case 31:
425	414	/* shared memory latch */
426		addr = crt.transp_hi * 256 + crt.transp_lo;
	415	addr = (crt.transp_hi << 8) | crt.transp_lo;
427	416	//      logerror("6545 transp_latch $%04X\n", addr);
428	417	m6545_update_strobe(addr);
429	418	break;
r1977	r1978
435	424	VIDEO_START( mbee )
436	425	{
437	426	videoram = auto_malloc(0x800);
	427	pcgram = memory_region(REGION_CPU1)+0xf000;
	428	}
	429
	430	VIDEO_START( mbeeic )
	431	{
	432	videoram = auto_malloc(0x800);
438	433	colorram = auto_malloc(0x800);
439	434	pcgram = memory_region(REGION_CPU1)+0xf000;
440	435	}
r1977	r1978
448	443
449	444	framecnt++;
450	445
451		cursor = crt.cursor_address_hi * 256 + crt.cursor_address_lo;
452		screen_ = (crt.screen_address_hi & 7) * 256 + crt.screen_address_lo;
	446	cursor = (crt.cursor_address_hi << 8) | crt.cursor_address_lo;
	447	screen_ = ((crt.screen_address_hi & 7) << 8) | crt.screen_address_lo;
453	448	for( offs = screen_; offs < crt.horizontal_displayed * crt.vertical_displayed + screen_; offs++ )
454	449	{
	450	int sx, sy, code;
	451	sy = off_y - 9 + ((offs - screen_) / crt.horizontal_displayed) * (crt.scan_lines + 1);
	452	sx = (off_x + 3 + ((offs - screen_) % crt.horizontal_displayed)) << 3;
	453	code = videoram[offs];
	454	drawgfx( bitmap,machine->gfx[0],code,0,0,0,sx,sy,
	455	&machine->screen[0].visarea,TRANSPARENCY_NONE,0);
	456
	457	if( offs == cursor && (crt.cursor_top & 0x60) != 0x20 )
	458	{
	459	if( (crt.cursor_top & 0x60) == 0x60 || (framecnt & 16) == 0 )
	460	{
	461	int x, y;
	462	for( y = (crt.cursor_top & 31); y <= (crt.cursor_bottom & 31); y++ )
	463	{
	464	if( y > crt.scan_lines )
	465	break;
	466	for( x = 0; x < 8; x++ )
	467	*BITMAP_ADDR16(bitmap, sy+y, sx+x) = 1;
	468	}
	469	}
	470	}
	471	}
	472	return 0;
	473	}
	474
	475	VIDEO_UPDATE( mbeeic )
	476	{
	477	int offs, cursor, screen_;
	478
	479	for( offs = 0x000; offs < 0x380; offs += 0x10 )
	480	keyboard_matrix_r(offs);
	481
	482	framecnt++;
	483
	484	cursor = (crt.cursor_address_hi << 8) | crt.cursor_address_lo;
	485	screen_ = ((crt.screen_address_hi & 7) << 8) | crt.screen_address_lo;
	486	for( offs = screen_; offs < crt.horizontal_displayed * crt.vertical_displayed + screen_; offs++ )
	487	{
455	488	int sx, sy, code, color;
456	489	sy = off_y + ((offs - screen_) / crt.horizontal_displayed) * (crt.scan_lines + 1);
457		sx = (off_x + ((offs - screen_) % crt.horizontal_displayed)) * 8;
	490	sx = (off_x + ((offs - screen_) % crt.horizontal_displayed)) << 3;
458	491	code = videoram[offs];
459	492	color = colorram[offs];
460	493	drawgfx( bitmap,machine->gfx[0],code,color,0,0,sx,sy,

src/mess/messdriv.c

r1977	r1978
542	542	TESTDRIVER( kc85_4d )   /* VEB KC 85/4 with disk interface               */
543	543
544	544	/* MICROBEE SYSTEMS */
545		DRIVER( mbee )      /* Microbee 32 IC                           */
	545	DRIVER( mbee )      /* Microbee 16 Standard or Plus                        */
	546	DRIVER( mbeeic )   /* Microbee 32 IC                           */
546	547	DRIVER( mbeepc )   /* Microbee 32 PC                           */
547	548	DRIVER( mbeepc85 )   /* Microbee 32 PC85                           */
548	549	DRIVER( mbee56 )   /* Microbee 56K (CP/M)                        */

src/mess/machine/mbee.c

r1977	r1978
50	50	/*
51	51	On reset or power on, a circuit forces rom 8000-8FFF to appear at 0000-0FFF, while ram is disabled.
52	52	It gets set back to normal on the first attempt to write to memory. (/WR line goes active).
53		The previous code caused the debugger to show $FF always in RAM, soft reset to hang, and many games to not work.
54	53	*/
55	54
56	55

src/mess/drivers/mbee.c

r1977	r1978
9	9	Microbee memory map (preliminary)
10	10
11	11	0000-7FFF RAM
	12	8000-BFFF SYSTEM roms (bas510a.rom, bas510b.rom)
	13	C000-DFFF Edasm or WBee (edasm.rom or wbeee12.rom, optional)
	14	E000-EFFF Telcom (tecl321.rom; optional)
	15	F000-F7FF Video RAM
	16	F800-FFFF PCG RAM (graphics)
	17
	18	Microbee IC memory map (preliminary)
	19
	20	0000-7FFF RAM
12	21	8000-BFFF SYSTEM roms (bas522a.rom, bas522b.rom)
13	22	C000-DFFF Edasm or WBee (edasm.rom or wbeee12.rom, optional)
14	23	E000-EFFF Telcom (tecl321.rom; optional)
r1977	r1978
44	53	#include "devices/cassette.h"
45	54	#include "devices/z80bin.h"
46	55
	56	static READ8_HANDLER( mbee_read_ff ) { return 0xff; }   /* returns the true state of unmapped memory */
	57
47	58	static ADDRESS_MAP_START(mbee_mem, ADDRESS_SPACE_PROGRAM, 8)
48	59	AM_RANGE(0x0000, 0x0fff) AM_RAMBANK(1)
	60	AM_RANGE(0x1000, 0x3fff) AM_RAM
	61	AM_RANGE(0x4000, 0x7fff) AM_READWRITE(mbee_read_ff, MWA8_NOP)
	62	AM_RANGE(0x8000, 0xefff) AM_ROM
	63	AM_RANGE(0xf000, 0xf7ff) AM_READWRITE(mbee_videoram_r, mbee_videoram_w) AM_BASE(&pcgram) AM_SIZE(&videoram_size)
	64	AM_RANGE(0xf800, 0xffff) AM_READWRITE(mbee_pcg_r, mbee_pcg_w)
	65	ADDRESS_MAP_END
	66
	67	static ADDRESS_MAP_START(mbeeic_mem, ADDRESS_SPACE_PROGRAM, 8)
	68	AM_RANGE(0x0000, 0x0fff) AM_RAMBANK(1)
49	69	AM_RANGE(0x1000, 0x7fff) AM_RAM
50		AM_RANGE(0x8000, 0xbfff) AM_ROM
51		AM_RANGE(0xc000, 0xdfff) AM_ROM
52		AM_RANGE(0xe000, 0xefff) AM_ROM
	70	AM_RANGE(0x8000, 0xefff) AM_ROM
53	71	AM_RANGE(0xf000, 0xf7ff) AM_READWRITE(mbee_videoram_r, mbee_videoram_w) AM_BASE(&pcgram) AM_SIZE(&videoram_size)
54	72	AM_RANGE(0xf800, 0xffff) AM_READWRITE(mbee_pcg_color_r, mbee_pcg_color_w)
55	73	ADDRESS_MAP_END
56	74
57
58	75	static ADDRESS_MAP_START(mbee56_mem, ADDRESS_SPACE_PROGRAM, 8)
59	76	AM_RANGE(0x0000, 0x0fff) AM_RAMBANK(1)
60	77	AM_RANGE(0x1000, 0xdfff) AM_RAM
r1977	r1978
67	84	static ADDRESS_MAP_START(mbee_ports, ADDRESS_SPACE_IO, 8)
68	85	ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
69	86	AM_RANGE(0x00, 0x03) AM_MIRROR(0x10) AM_READWRITE(mbee_pio_r, mbee_pio_w)
	87	AM_RANGE(0x0b, 0x0b) AM_MIRROR(0x10) AM_READWRITE(mbee_video_bank_r, mbee_video_bank_w)
	88	AM_RANGE(0x0c, 0x0c) AM_MIRROR(0x10) AM_READWRITE(m6545_status_r, m6545_index_w)
	89	AM_RANGE(0x0d, 0x0d) AM_MIRROR(0x10) AM_READWRITE(m6545_data_r, m6545_data_w)
	90	ADDRESS_MAP_END
	91
	92	static ADDRESS_MAP_START(mbeeic_ports, ADDRESS_SPACE_IO, 8)
	93	ADDRESS_MAP_FLAGS( AMEF_ABITS(8) )
	94	AM_RANGE(0x00, 0x03) AM_MIRROR(0x10) AM_READWRITE(mbee_pio_r, mbee_pio_w)
70	95	AM_RANGE(0x08, 0x08) AM_MIRROR(0x10) AM_READWRITE(mbee_pcg_color_latch_r, mbee_pcg_color_latch_w)
71	96	// AM_RANGE(0x09, 0x09) AM_MIRROR(0x10)  Listed as "Colour Wait Off" but doesn't appear in the schematics
72	97	AM_RANGE(0x0a, 0x0a) AM_MIRROR(0x10) AM_READWRITE(mbee_color_bank_r, mbee_color_bank_w)
r1977	r1978
262	287
263	288	static MACHINE_DRIVER_START( mbee )
264	289	/* basic machine hardware */
265		MDRV_CPU_ADD_TAG("main", Z80, 3375000)         /* 3.37500 Mhz */
	290	MDRV_CPU_ADD_TAG("main", Z80, XTAL_12MHz / 6)         /* 2 Mhz */
266	291	MDRV_CPU_PROGRAM_MAP(mbee_mem, 0)
267	292	MDRV_CPU_IO_MAP(mbee_ports, 0)
268	293	MDRV_CPU_CONFIG(mbee_daisy_chain)
269	294	MDRV_CPU_VBLANK_INT("main", mbee_interrupt)
	295
	296	MDRV_MACHINE_RESET( mbee )
	297
	298	MDRV_GFXDECODE(mbee)
	299	MDRV_SCREEN_ADD("main", RASTER)
	300	MDRV_SCREEN_REFRESH_RATE(50)
	301	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(250)) /* not accurate */
	302	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
	303	MDRV_SCREEN_SIZE(64*8, 16*16)
	304	MDRV_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0, 16*16-1)
	305	MDRV_PALETTE_LENGTH(2)
	306	MDRV_PALETTE_INIT(black_and_white)
	307
	308	MDRV_VIDEO_START(mbee)
	309	MDRV_VIDEO_UPDATE(mbee)
	310
	311	/* sound hardware */
	312	MDRV_SPEAKER_STANDARD_MONO("mono")
	313	MDRV_SOUND_ADD(WAVE, 0)
	314	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.25)
	315	MDRV_SOUND_ADD(SPEAKER, 0)
	316	MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
	317	MACHINE_DRIVER_END
	318
	319
	320	static MACHINE_DRIVER_START( mbeeic )
	321	/* basic machine hardware */
	322	MDRV_CPU_ADD_TAG("main", Z80, 3375000)         /* 3.37500 Mhz */
	323	MDRV_CPU_PROGRAM_MAP(mbeeic_mem, 0)
	324	MDRV_CPU_IO_MAP(mbeeic_ports, 0)
	325	MDRV_CPU_CONFIG(mbee_daisy_chain)
	326	MDRV_CPU_VBLANK_INT("main", mbee_interrupt)
270	327	MDRV_INTERLEAVE(1)
271	328
272	329	MDRV_MACHINE_RESET( mbee )
r1977	r1978
275	332	MDRV_GFXDECODE(mbee)
276	333	MDRV_SCREEN_ADD("main", RASTER)
277	334	MDRV_SCREEN_REFRESH_RATE(50)
278		MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
	335	MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(250)) /* not accurate */
279	336	MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
280	337	MDRV_SCREEN_SIZE(70*8, 310)
281	338	MDRV_SCREEN_VISIBLE_AREA(0*8, 70*8-1, 0, 19*16-1)
282	339	MDRV_PALETTE_LENGTH(256*2)
283	340	MDRV_PALETTE_INIT(mbee)
284	341
285		MDRV_VIDEO_START(mbee)
286		MDRV_VIDEO_UPDATE(mbee)
	342	MDRV_VIDEO_START(mbeeic)
	343	MDRV_VIDEO_UPDATE(mbeeic)
287	344
288	345	/* sound hardware */
289	346	MDRV_SPEAKER_STANDARD_MONO("mono")
r1977	r1978
295	352
296	353
297	354	static MACHINE_DRIVER_START( mbee56 )
298		MDRV_IMPORT_FROM( mbee )
	355	MDRV_IMPORT_FROM( mbeeic )
299	356	MDRV_CPU_MODIFY( "main" )
300	357	MDRV_CPU_PROGRAM_MAP(mbee56_mem, 0)
301	358	MACHINE_DRIVER_END
r1977	r1978
314	371
315	372	ROM_START( mbee )
316	373	ROM_REGION(0x18000,REGION_CPU1,0)
	374	ROM_LOAD("bas510a.ic25",  0x8000, 0x1000, CRC(2ca47c36) SHA1(f36fd0afb3f1df26edc67919e78000b762b6cbcb) )
	375	ROM_LOAD("bas510b.ic27",  0x9000, 0x1000, CRC(a07a0c51) SHA1(dcbdd9df78b4b6b2972de2e4050dabb8ae9c3f5a) )
	376	ROM_LOAD("bas510c.ic28",  0xa000, 0x1000, CRC(906ac00f) SHA1(9b46458e5755e2c16cdb191a6a70df6de9fe0271) )
	377	ROM_LOAD("bas510d.ic30",  0xb000, 0x1000, CRC(61727323) SHA1(c0fea9fd0e25beb9faa7424db8efd07cf8d26c1b) )
	378	ROM_LOAD("edasma.ic31",   0xc000, 0x1000, CRC(120c3dea) SHA1(32c9bb6e54dd50d5218bb43cc921885a0307161d) )
	379	ROM_LOAD("edasmb.ic33",   0xd000, 0x1000, CRC(a23bf3c8) SHA1(73a57c2800a1c744b527d0440b170b8b03351753) )
	380	ROM_LOAD("charrom.ic13",  0xf000, 0x0800, CRC(b149737b) SHA1(a3cd4f5d0d3c71137cd1f0f650db83333a2e3597) )
	381	ROM_RELOAD( 0x17000, 0x0800 )
	382	ROM_END
	383
	384	ROM_START( mbeeic )
	385	ROM_REGION(0x18000,REGION_CPU1,0)
317	386	ROM_LOAD("bas522a.rom",  0x8000, 0x2000, CRC(7896a696) SHA1(a158f7803296766160e1f258dfc46134735a9477))
318	387	ROM_LOAD("bas522b.rom",  0xa000, 0x2000, CRC(b21d9679) SHA1(332844433763331e9483409cd7da3f90ac58259d))
319	388	ROM_LOAD("edasm.rom",    0xc000, 0x2000, CRC(1af1b3a9) SHA1(d035a997c2dbbb3918b3395a3a5a1076aa203ee5))
r1977	r1978
445	514	SYSTEM_CONFIG_START(mbee)
446	515	CONFIG_DEVICE(mbee_cassette_getinfo)
447	516	CONFIG_DEVICE(mbee_cartslot_getinfo)
	517	CONFIG_DEVICE(mbee_quickload_getinfo)
	518	SYSTEM_CONFIG_END
	519
	520	SYSTEM_CONFIG_START(mbeeic)
	521	CONFIG_DEVICE(mbee_cassette_getinfo)
	522	CONFIG_DEVICE(mbee_cartslot_getinfo)
448	523	CONFIG_DEVICE(mbee_floppy_getinfo)
449	524	CONFIG_DEVICE(mbee_quickload_getinfo)
450	525	SYSTEM_CONFIG_END
451	526
452	527	/*    YEAR  NAME      PARENT    COMPAT  MACHINE   INPUT     INIT      CONFIG    COMPANY   FULLNAME */
453		COMP( 1982, mbee,     0,   0,   mbee,     mbee,     mbee,     mbee,      "Applied Technology",  "Microbee 32 IC" , 0)
454		COMP( 1982, mbeepc,   mbee,   0,   mbee,     mbee,     mbee,     mbee,      "Applied Technology",  "Microbee 32 PC" , 0)
455		COMP( 1985?,mbeepc85, mbee,   0,   mbee,     mbee,     mbee,     mbee,      "Applied Technology",  "Microbee 32 PC85" , 0)
456		COMP( 1983, mbee56,   mbee,   0,   mbee56,   mbee,     mbee56,   mbee,      "Applied Technology",  "Microbee 56" , 0)
	528	COMP( 1982, mbee,     0,   0,   mbee,     mbee,     mbee,     mbee,      "Applied Technology",  "Microbee 16 Standard" , 0)
	529	COMP( 1982, mbeeic,   mbee,   0,   mbeeic,   mbee,     mbee,     mbeeic,      "Applied Technology",  "Microbee 32 IC" , 0)
	530	COMP( 1982, mbeepc,   mbee,   0,   mbeeic,   mbee,     mbee,     mbeeic,      "Applied Technology",  "Microbee 32 PC" , 0)
	531	COMP( 1985?,mbeepc85, mbee,   0,   mbeeic,   mbee,     mbee,     mbeeic,      "Applied Technology",  "Microbee 32 PC85" , 0)
	532	COMP( 1983, mbee56,   mbee,   0,   mbee56,   mbee,     mbee56,   mbeeic,      "Applied Technology",  "Microbee 56" , 0)
457	533

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