MAME SVN History

199869 Revisions

r24556 Monday 29th July, 2013 at 18:01:55 UTC by Michael Zapf
(MESS) ti99/8: Changed the speech chip and fixed incomplete address mapping behavior

[src/mess/drivers]	ti99_8.c
[src/mess/machine/ti99]	speech8.c

trunk/src/mess/machine/ti99/speech8.c
r24555	r24556
123	123	if (VERBOSE>4) LOG("speech8: reset\n");
124	124	}
125	125
126		// Unlike the TI-99/4A, the 99/8 uses the TMS5220
	126	// Unlike the TI-99/4A, the 99/8 uses the TMS5220C
127	127	MACHINE_CONFIG_FRAGMENT( ti998_speech )
128	128	MCFG_DEVICE_ADD("vsm", SPEECHROM, 0)
129	129
130	130	MCFG_SPEAKER_STANDARD_MONO("mono")
131		MCFG_SOUND_ADD(SPEECHSYN_TAG, TMS5220, 640000L)
	131	MCFG_SOUND_ADD(SPEECHSYN_TAG, TMS5220C, 640000L)
132	132	MCFG_TMS52XX_READYQ_HANDLER(WRITELINE(ti998_spsyn_device, speech8_ready))
133	133	MCFG_TMS52XX_SPEECHROM("vsm")
134	134	MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)

trunk/src/mess/drivers/ti99_8.c
r24555	r24556
855	855	static const mapper8_list_entry mapper_devices[] =
856	856	{
857	857	// TI-99/4A mode (CRUS=1)
	858	// Full/partial decoding has been verified on a real machine
858	859	// GROMs: According to the spec, the 99/8 supports up to 4 GROM libraries
859	860	// (99/4A supports 256 libraries)
860	861	// at 9800, 9804, 9808, 980c. Address counter access is at 9802,6,a,e. Write access +0400.
861	862	{ ROM0NAME, TI99EM, STOP, 0x0000, 0xe000, 0x0000 }, // 0000-1fff
862	863
863		{ TISOUND_TAG, TI99EM, STOP, 0x8400, 0xfff0, 0x0000 }, // 8400-840f
864		{ VIDEO_SYSTEM_TAG, TI99EM, STOP, 0x8800, 0xfffd, 0x0400 }, // 8800,8802 / 8c00,8c02
865		{ SPEECH_TAG, TI99EM, STOP, 0x9000, 0xfff0, 0x0400 }, // 9000-900f / 9400-940f
	864	{ TISOUND_TAG, TI99EM, STOP, 0x8400, 0xfff1, 0x0000 }, // 8400-840f
	865	{ VIDEO_SYSTEM_TAG, TI99EM, STOP, 0x8800, 0xfff1, 0x0400 }, // 8800,8802 / 8c00,8c02
	866	{ SPEECH_TAG, TI99EM, STOP, 0x9000, 0xfff1, 0x0400 }, // 9000-900f / 9400-940f
866	867	{ SRAMNAME, TI99EM, STOP, 0x8000, 0xf800, 0x0000 }, // 8000-87ff; must follow the sound generator
867	868	{ MAPPER_TAG, TI99EM, STOP, 0x8810, 0xfff0, 0x0000 },
868	869
r24555	r24556
872	873	{ GROMPORT_TAG, TI99EM, CONT, 0x9800, 0xfff1, 0x0400 }, // dto. use internal address counter and id)
873	874
874	875	// TI-99/8 mode
	876	// Full/partial decoding has been verified on a real machine
	877	// Sound ports are at f800, f802, f804, ..., f80e
	878	// VDP ports are (f810,f812), (f814,f816), (f818,f81a), (f81c,f81e)
	879	// Note that unmapped GROM accesses (odd addresses like F831) return FF,
	880	// not 00 as in our emulation, so that is not quite consistent, but tolerable ... I guess
	881
875	882	{ SRAMNAME, NATIVE, STOP, 0xf000, 0xf800, 0x0000 }, // f000-f7ff
876		{ TISOUND_TAG, NATIVE, STOP, 0xf800, 0xfff0, 0x0000 }, // f800-f80f
877		{ VIDEO_SYSTEM_TAG, NATIVE, STOP, 0xf810, 0xfffd, 0x0000 }, // f810,2 (unlike 99/4A, no different read/write ports)
878		{ SPEECH_TAG, NATIVE, STOP, 0xf820, 0xfff0, 0x0000 }, // f820-f82f
	883	{ TISOUND_TAG, NATIVE, STOP, 0xf800, 0xfff1, 0x0000 }, // f800-f80e (even addresses)
	884	{ VIDEO_SYSTEM_TAG, NATIVE, STOP, 0xf810, 0xfff1, 0x0000 }, // f810,2 (unlike 99/4A, no different read/write ports)
	885	{ SPEECH_TAG, NATIVE, STOP, 0xf820, 0xfff1, 0x0000 }, // f820-f82f
879	886	{ MAPPER_TAG, NATIVE, STOP, 0xf870, 0xfff0, 0x0000 },
880	887
881	888	{ GROM0_TAG, NATIVE, CONT, 0xf830, 0xfff1, 0x0000 }, // f830-f83e (4 banks), no different read/write ports

199869 Revisions