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r19558 Friday 14th December, 2012 at 18:48:49 UTC by hap
added audiocpu interrupts
[src/mame/drivers]kurukuru.c

trunk/src/mame/drivers/kurukuru.c
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105105public:
106106   kurukuru_state(const machine_config &mconfig, device_type type, const char *tag)
107107      : driver_device(mconfig, type, tag),
108        m_v9938(*this, "v9938") { }
108      m_audiocpu(*this, "audiocpu"),
109      m_v9938(*this, "v9938")
110   { }
109111
112   required_device<cpu_device> m_audiocpu;
110113   required_device<v9938_device> m_v9938;
111
114   
115   UINT8 m_sound_irq_cause;
116   UINT8 m_sound_irq_mask;
117   
112118   DECLARE_WRITE8_MEMBER(kurukuru_bankswitch_w);
113   DECLARE_WRITE8_MEMBER(kurukuru_samples_w);
114   DECLARE_WRITE8_MEMBER(kurukuru_outport_w);
119   DECLARE_WRITE8_MEMBER(kurukuru_soundlatch_w);
120   DECLARE_READ8_MEMBER(kurukuru_soundlatch_r);
121   DECLARE_WRITE8_MEMBER(kurukuru_sound_irqmask_w);
122   DECLARE_READ8_MEMBER(kurukuru_sound_timer_irqack_r);
115123
124   void update_sound_irq(UINT8 cause);
116125   virtual void machine_start();
117126   virtual void machine_reset();
118   TIMER_DEVICE_CALLBACK_MEMBER(kurukuru_interrupt);
127   TIMER_DEVICE_CALLBACK_MEMBER(kurukuru_vdp_scanline);
128   INTERRUPT_GEN_MEMBER(kurukuru_sound_timer_irq);
119129};
120130
121131#define MAIN_CLOCK      XTAL_21_4772MHz
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132142
133143
134144/*************************************************
135*                Video Hardware                  *
145*                  Interrupts                    *
136146*************************************************/
137147
138static void kurukuru_vdp0_interrupt(device_t *, v99x8_device &device, int i)
148static void kurukuru_vdp_interrupt(device_t *, v99x8_device &device, int i)
139149{
140   device.machine().device("maincpu")->execute().set_input_line(0, (i ? HOLD_LINE : CLEAR_LINE));
150   device.machine().device("maincpu")->execute().set_input_line(0, (i ? ASSERT_LINE : CLEAR_LINE));
141151}
142152
143153
144/*************************************************
145*                     I/O                        *
146*************************************************/
147
148WRITE8_MEMBER(kurukuru_state::kurukuru_bankswitch_w)
154TIMER_DEVICE_CALLBACK_MEMBER(kurukuru_state::kurukuru_vdp_scanline)
149155{
150   // d4,d5: bank
151   membank("bank1")->set_entry(data >> 4 & 3);
152   
153   // d3: ?
154   // other bits: always set
156   m_v9938->set_resolution(0);
157   m_v9938->interrupt();
155158}
156159
157160
158WRITE8_MEMBER(kurukuru_state::kurukuru_outport_w)
161void kurukuru_state::update_sound_irq(UINT8 cause)
159162{
160//      logerror("%02x\n", data);
163   m_sound_irq_cause = cause & 3;
164   UINT8 mask = m_sound_irq_cause & m_sound_irq_mask;
165   if (mask)
166   {
167      // use bit 0 for latch irq, and bit 1 for timer irq
168      // latch irq vector is $ef (rst $28)
169      // timer irq vector is $f7 (rst $30)
170      // if both are asserted, the vector becomes $f7 AND $ef = $e7 (rst $20)
171      const UINT8 irq_vector[4] = { 0x00, 0xef, 0xf7, 0xe7 };
172      m_audiocpu->set_input_line_and_vector(0, ASSERT_LINE, irq_vector[mask]);
173   }
174   else
175   {
176      m_audiocpu->set_input_line(0, CLEAR_LINE);
177   }
161178}
162179
163180
164WRITE8_MEMBER(kurukuru_state::kurukuru_samples_w)
181INTERRUPT_GEN_MEMBER(kurukuru_state::kurukuru_sound_timer_irq)
165182{
166   popmessage("triggered sample: %02X", data);
183   update_sound_irq(m_sound_irq_cause | 2);
167184}
168185
169186
170187/*************************************************
171*                  Memory Map                   *
188*               Memory Map / I/O                 *
172189*************************************************/
173190
191// Main CPU
192
193WRITE8_MEMBER(kurukuru_state::kurukuru_bankswitch_w)
194{
195   // d4,d5: bank
196   // other bits: ?
197   membank("bank1")->set_entry(data >> 4 & 3);
198}
199
200WRITE8_MEMBER(kurukuru_state::kurukuru_soundlatch_w)
201{
202   soundlatch_byte_w(space, 0, data);
203   update_sound_irq(m_sound_irq_cause | 1);
204}
205
206
174207static ADDRESS_MAP_START( kurukuru_map, AS_PROGRAM, 8, kurukuru_state )
175208   AM_RANGE(0x0000, 0x3fff) AM_ROM
176209   AM_RANGE(0x6000, 0xdfff) AM_ROMBANK("bank1")
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179212
180213static ADDRESS_MAP_START( kurukuru_io, AS_IO, 8, kurukuru_state )
181214   ADDRESS_MAP_GLOBAL_MASK(0xff)
182//   AM_RANGE(0x00, 0x00) AM_WRITENOP // seems for switch cpu... or irq?
215//   AM_RANGE(0x00, 0x00) AM_WRITENOP // seems for switch cpu... or irq? or hopper?
183216   AM_RANGE(0x10, 0x10) AM_READ_PORT("DSW1")
184   AM_RANGE(0x20, 0x20) AM_WRITE(kurukuru_samples_w)    // trigger the m5205 sample number.
217   AM_RANGE(0x20, 0x20) AM_WRITE(kurukuru_soundlatch_w)
185218   AM_RANGE(0x80, 0x83) AM_DEVREADWRITE( "v9938", v9938_device, read, write )
186219   AM_RANGE(0x90, 0x90) AM_WRITE(kurukuru_bankswitch_w)
187220   AM_RANGE(0xa0, 0xa0) AM_READ_PORT("IN0")
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203236*/
204237
205238
239// Audio CPU
240
241WRITE8_MEMBER(kurukuru_state::kurukuru_sound_irqmask_w)
242{
243   // d0: sound latch irq enable
244   // d1: sound timer irq enable
245   // other bits: ?
246   m_sound_irq_mask = data;
247   update_sound_irq(m_sound_irq_cause);
248}
249
250READ8_MEMBER(kurukuru_state::kurukuru_soundlatch_r)
251{
252   update_sound_irq(m_sound_irq_cause & ~1);
253   return soundlatch_byte_r(space, 0);
254}
255
256READ8_MEMBER(kurukuru_state::kurukuru_sound_timer_irqack_r)
257{
258   update_sound_irq(m_sound_irq_cause & ~2);
259   return 0;
260}
261
262
206263static ADDRESS_MAP_START( audio_map, AS_PROGRAM, 8, kurukuru_state )
207264   AM_RANGE(0x0000, 0xbfff) AM_ROM
208265   AM_RANGE(0xf800, 0xffff) AM_RAM
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210267
211268static ADDRESS_MAP_START( audio_io, AS_IO, 8, kurukuru_state )
212269   ADDRESS_MAP_GLOBAL_MASK(0xff)
213//   AM_RANGE(0x00, 0x00) seems for switch cpu... or irqack?
214//   AM_RANGE(0xff, 0xff) AM_WRITE(kurukuru_outport_w)
270//   AM_RANGE(0x40, 0x40) AM_WRITENOP
271   AM_RANGE(0x50, 0x50) AM_WRITE(kurukuru_sound_irqmask_w)
272   AM_RANGE(0x60, 0x60) AM_READ(kurukuru_soundlatch_r)
273   AM_RANGE(0x70, 0x70) AM_READ(kurukuru_sound_timer_irqack_r)
215274ADDRESS_MAP_END
216275
217/*
218  0x40 Write
219  0x50 Write (0x0b)
220  0x60 Read
221  0x70 Read
222*/
223276
224/*
225   Interrupts for audio CPU
226   Vectors for IM0
227   20h - 28h - 30h
228
229  20h:
230
231  0020    jp $0093
232  008e    ld a,$0b
233  0090    out ($50),a
234  0092    ret
235  0093    out ($40),a
236  0095    in a,($70)    ; maybe irqack?
237  0097    in a,($60)    ; soundlatch?
238  0099    cp $0e
239  009b    jr nc,$00aa
240  009d    ld ($f800),a
241  00a0    call $008e
242  00a3    ld sp,$0000
243  00a6    ld hl,$0033
244  00a9    push hl
245  00aa    ei
246  00ab    reti
247
248  28h:
249
250  0028    jp $0097
251  0097    -> see above
252
253  30h:
254
255  0030    jp $00ad
256  00ad    out ($40),a
257  00af    in a,($70)
258  00b1    ei
259  00b2    reti
260
261*/
262
263
264277/*************************************************
265278*            Input Ports Definitions             *
266279*************************************************/
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350363
351364void kurukuru_state::machine_reset()
352365{
366   m_sound_irq_mask = 0;
367   update_sound_irq(0);
353368}
354369
355370
356371/*************************************************
357*      R/W Handlers and Interrupt Routines       *
358*************************************************/
359
360TIMER_DEVICE_CALLBACK_MEMBER(kurukuru_state::kurukuru_interrupt)
361{
362   m_v9938->set_resolution(0);
363   m_v9938->interrupt();
364}
365
366
367/*************************************************
368372*                Sound Interfaces                *
369373*************************************************/
370374
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389393   MCFG_CPU_ADD("maincpu",Z80,MAIN_CLOCK/6)
390394   MCFG_CPU_PROGRAM_MAP(kurukuru_map)
391395   MCFG_CPU_IO_MAP(kurukuru_io)
392   MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", kurukuru_state, kurukuru_interrupt, "screen", 0, 1)
396   MCFG_TIMER_DRIVER_ADD_SCANLINE("scantimer", kurukuru_state, kurukuru_vdp_scanline, "screen", 0, 1)
393397
394398   MCFG_CPU_ADD("audiocpu", Z80, MAIN_CLOCK/6)
395399   MCFG_CPU_PROGRAM_MAP(audio_map)
396400   MCFG_CPU_IO_MAP(audio_io)
397   // need interrupts...
401   MCFG_CPU_PERIODIC_INT_DRIVER(kurukuru_state, kurukuru_sound_timer_irq, 4*60) // from M5205? need to fix that
398402
399403   MCFG_NVRAM_ADD_0FILL("nvram")
400404
401
402405   /* video hardware */
403406   MCFG_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK)
404407
405408   MCFG_V9938_ADD("v9938", "screen", VDP_MEM)
406   MCFG_V99X8_INTERRUPT_CALLBACK_STATIC(kurukuru_vdp0_interrupt)
409   MCFG_V99X8_INTERRUPT_CALLBACK_STATIC(kurukuru_vdp_interrupt)
407410
408411   MCFG_SCREEN_ADD("screen",RASTER)
409412   MCFG_SCREEN_REFRESH_RATE(60)

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