trunk/src/emu/sound/l7a1045_l6028_dsp_a.c
r0 | r245317 | |
| 1 | /*************************************************************************** |
| 2 | |
| 3 | L7A1045 L6028 DSP-A |
| 4 | (QFP120 package) |
| 5 | |
| 6 | this is the audio chip used on the following |
| 7 | SNK Hyper NeoGeo 64 (arcade platform) |
| 8 | AKAI MPC3000 (synth) |
| 9 | |
| 10 | both are driven by a V53, the MPC3000 isn't dumped. |
| 11 | |
| 12 | appears to write a register number and channel/voice using |
| 13 | l7a1045_sound_select_w (offset 0) |
| 14 | format: |
| 15 | |
| 16 | ---- rrrr ---c cccc |
| 17 | r = register, c = channel |
| 18 | |
| 19 | the channel select appears to address 32 different voices (5-bits) |
| 20 | the register select appears to use 4-bits with 0x0 to 0xa being valid |
| 21 | |
| 22 | the registers data is written / read using offsets 1,2,3 after |
| 23 | setting the register + channel, this gives 3 16-bit values for |
| 24 | each register. |
| 25 | |
| 26 | register format: |
| 27 | |
| 28 | offset 3 offset 2 offset 1 |
| 29 | fedcba9876543210 | fedcba9876543210 | fedcba9876543210 |
| 30 | |
| 31 | 0 ---------------- ---------------- ---------------- |
| 32 | |
| 33 | 1 ---------------- ---------------- ---------------- |
| 34 | |
| 35 | 2 ---------------- ---------------- ---------------- |
| 36 | |
| 37 | 3 ---------------- ---------------- ---------------- |
| 38 | |
| 39 | 4 ---------------- ---------------- ---------------- |
| 40 | |
| 41 | 5 ---------------- ---------------- ---------------- |
| 42 | |
| 43 | 6 ---------------- ---------------- ---------------- |
| 44 | |
| 45 | 7 ---------------- ---------------- ---------------- |
| 46 | |
| 47 | 8 ---------------- ---------------- ---------------- (read only?) |
| 48 | |
| 49 | 9 ---------------- ---------------- ---------------- (read only?) |
| 50 | |
| 51 | a ---------------- ---------------- ---------------- |
| 52 | |
| 53 | Registers are not yet understood. |
| 54 | |
| 55 | Some of the other ports on the HNG64 sound CPU may also be tied |
| 56 | to this chip, this isn't yet clear. |
| 57 | |
| 58 | Sample data format TBA |
| 59 | |
| 60 | ***************************************************************************/ |
| 61 | |
| 62 | #include "emu.h" |
| 63 | #include "l7a1045_l6028_dsp_a.h" |
| 64 | |
| 65 | |
| 66 | // device type definition |
| 67 | const device_type L7A1045 = &device_creator<l7a1045_sound_device>; |
| 68 | |
| 69 | |
| 70 | //************************************************************************** |
| 71 | // LIVE DEVICE |
| 72 | //************************************************************************** |
| 73 | |
| 74 | //------------------------------------------------- |
| 75 | // l7a1045_sound_device - constructor |
| 76 | //------------------------------------------------- |
| 77 | |
| 78 | l7a1045_sound_device::l7a1045_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock) |
| 79 | : device_t(mconfig, L7A1045, "L7A1045 L6028 DSP-A", tag, owner, clock, "l7a1045_custom", __FILE__), |
| 80 | device_sound_interface(mconfig, *this), |
| 81 | m_stream(NULL) |
| 82 | /*m_key(0), |
| 83 | m_base(NULL)*/ |
| 84 | { |
| 85 | } |
| 86 | |
| 87 | |
| 88 | //------------------------------------------------- |
| 89 | // device_start - device-specific startup |
| 90 | //------------------------------------------------- |
| 91 | |
| 92 | void l7a1045_sound_device::device_start() |
| 93 | { |
| 94 | /* Allocate the stream */ |
| 95 | m_stream = stream_alloc(0, 2, clock() / 384); |
| 96 | } |
| 97 | |
| 98 | |
| 99 | //------------------------------------------------- |
| 100 | // sound_stream_update - handle a stream update |
| 101 | //------------------------------------------------- |
| 102 | |
| 103 | void l7a1045_sound_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) |
| 104 | { |
| 105 | /* Clear the buffers */ |
| 106 | memset(outputs[0], 0, samples*sizeof(*outputs[0])); |
| 107 | memset(outputs[1], 0, samples*sizeof(*outputs[1])); |
| 108 | } |
| 109 | |
| 110 | |
| 111 | WRITE16_MEMBER( l7a1045_sound_device::l7a1045_sound_w ) |
| 112 | { |
| 113 | m_stream->update(); |
| 114 | |
| 115 | switch (offset) |
| 116 | { |
| 117 | case 0x00:l7a1045_sound_select_w(space, offset, data, mem_mask); break; |
| 118 | case 0x01:l7a1045_sound_data_02_w(space, offset, data, mem_mask); break; |
| 119 | case 0x02:l7a1045_sound_data_04_w(space, offset, data, mem_mask); break; |
| 120 | case 0x03:l7a1045_sound_data_06_w(space, offset, data, mem_mask); break; |
| 121 | } |
| 122 | |
| 123 | } |
| 124 | |
| 125 | |
| 126 | READ16_MEMBER( l7a1045_sound_device::l7a1045_sound_r ) |
| 127 | { |
| 128 | m_stream->update(); |
| 129 | |
| 130 | switch (offset) |
| 131 | { |
| 132 | case 0x00: |
| 133 | case 0x01: |
| 134 | printf("%08x: l7a1045_sound_r unknown offset %02x\n", space.device().safe_pc(), offset * 2); |
| 135 | return 0x0000; |
| 136 | |
| 137 | case 0x02: return l7a1045_sound_port_0004_r(space, offset, mem_mask); |
| 138 | case 0x03: return l7a1045_sound_port_0006_r(space, offset, mem_mask); |
| 139 | } |
| 140 | return 0x000; |
| 141 | } |
| 142 | |
| 143 | |
| 144 | WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_select_w) |
| 145 | { |
| 146 | // I'm guessing these addresses are the sound chip / DSP? |
| 147 | |
| 148 | // ---- ---- 000c cccc |
| 149 | // c = channel |
| 150 | |
| 151 | if (data & 0x00e0) printf("%08x: l7a1045_sound_select_w unknown channel %02x\n", space.device().safe_pc(), data & 0x00ff); |
| 152 | |
| 153 | UINT8 command = data >> 8; |
| 154 | |
| 155 | switch (command) |
| 156 | { |
| 157 | case 0x00: |
| 158 | case 0x01: |
| 159 | case 0x02: |
| 160 | case 0x03: // 00003fffffff (startup only?) |
| 161 | case 0x04: // doesn't use 6 |
| 162 | case 0x05: // 00003fffffff (mostly, often) |
| 163 | case 0x06: // 00007ff0ffff mostly |
| 164 | case 0x07: // 0000000f0708 etc. (low values) |
| 165 | case 0x08: // doesn't write to 2/4/6 with this set?? |
| 166 | case 0x09: // doesn't write to 2/4/6 with this set?? |
| 167 | case 0x0a: // random looking values |
| 168 | |
| 169 | break; |
| 170 | |
| 171 | default: |
| 172 | printf("%08x: l7a1045_sound_select_w unrecognized command %02x\n", space.device().safe_pc(), command); |
| 173 | break; |
| 174 | } |
| 175 | |
| 176 | COMBINE_DATA(&m_audiochannel); |
| 177 | } |
| 178 | |
| 179 | WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_02_w) |
| 180 | { |
| 181 | m_audiodat[m_audiochannel].dat[2] = data; |
| 182 | |
| 183 | // if ((m_audiochannel & 0xff00) == 0x0a00) |
| 184 | // printf("%08x: write port 0x0002 chansel %04x data %04x (%04x%04x%04x)\n", space.device().safe_pc(), m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]); |
| 185 | } |
| 186 | |
| 187 | WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_04_w) |
| 188 | { |
| 189 | m_audiodat[m_audiochannel].dat[1] = data; |
| 190 | |
| 191 | // if ((m_audiochannel & 0xff00) == 0x0a00) |
| 192 | // printf("%08x: write port 0x0004 chansel %04x data %04x (%04x%04x%04x)\n", space.device().safe_pc(), m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]); |
| 193 | } |
| 194 | WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_06_w) |
| 195 | { |
| 196 | m_audiodat[m_audiochannel].dat[0] = data; |
| 197 | |
| 198 | // if ((m_audiochannel & 0xff00) == 0x0a00) |
| 199 | // printf("%08x: write port 0x0006 chansel %04x data %04x (%04x%04x%04x)\n", space.device().safe_pc(), m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]); |
| 200 | } |
| 201 | |
| 202 | |
| 203 | READ16_MEMBER(l7a1045_sound_device::l7a1045_sound_port_0004_r) |
| 204 | { |
| 205 | // it writes the channel select before reading this.. so either it works on channels, or the command.. |
| 206 | // read in irq5 |
| 207 | printf("%08x: l7a1045_sound_port_0004_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel); |
| 208 | return rand(); |
| 209 | } |
| 210 | |
| 211 | READ16_MEMBER(l7a1045_sound_device::l7a1045_sound_port_0006_r) |
| 212 | { |
| 213 | // it writes the channel select before reading this.. so either it works on channels, or the command.. |
| 214 | // read in irq5 |
| 215 | printf("%08x: l7a1045_sound_port_0006_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel); |
| 216 | return rand(); |
| 217 | } |
trunk/src/emu/sound/l7a1045_l6028_dsp_a.h
r0 | r245317 | |
| 1 | //************************************************************************** |
| 2 | // TYPE DEFINITIONS |
| 3 | //************************************************************************** |
| 4 | |
| 5 | struct l7a1045_voice |
| 6 | { |
| 7 | /* |
| 8 | l7a1045_voice() : |
| 9 | pos(0), |
| 10 | frac(0) |
| 11 | { |
| 12 | memset(regs, 0, sizeof(UINT32)*8); |
| 13 | } |
| 14 | |
| 15 | UINT32 regs[8]; |
| 16 | UINT32 pos; |
| 17 | UINT32 frac; |
| 18 | */ |
| 19 | }; |
| 20 | |
| 21 | // ======================> l7a1045_sound_device |
| 22 | |
| 23 | class l7a1045_sound_device : public device_t, |
| 24 | public device_sound_interface |
| 25 | { |
| 26 | public: |
| 27 | l7a1045_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); |
| 28 | ~l7a1045_sound_device() { } |
| 29 | |
| 30 | // void set_base(INT8* base) { m_base = base; } |
| 31 | |
| 32 | DECLARE_WRITE16_MEMBER( l7a1045_sound_w ); |
| 33 | DECLARE_READ16_MEMBER( l7a1045_sound_r ); |
| 34 | |
| 35 | protected: |
| 36 | // device-level overrides |
| 37 | virtual void device_start(); |
| 38 | |
| 39 | // sound stream update overrides |
| 40 | virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples); |
| 41 | |
| 42 | private: |
| 43 | sound_stream *m_stream; |
| 44 | // l7a1045_voice m_voice[32]; |
| 45 | // UINT16 m_key; |
| 46 | // INT8* m_base; |
| 47 | |
| 48 | UINT16 m_audiochannel; |
| 49 | |
| 50 | struct l7a1045_48bit_data { |
| 51 | UINT16 dat[3]; |
| 52 | }; |
| 53 | |
| 54 | l7a1045_48bit_data m_audiodat[0x10000]; |
| 55 | |
| 56 | DECLARE_WRITE16_MEMBER(l7a1045_sound_select_w); |
| 57 | DECLARE_WRITE16_MEMBER(l7a1045_sound_data_02_w); |
| 58 | DECLARE_WRITE16_MEMBER(l7a1045_sound_data_04_w); |
| 59 | DECLARE_WRITE16_MEMBER(l7a1045_sound_data_06_w); |
| 60 | |
| 61 | DECLARE_READ16_MEMBER(l7a1045_sound_port_0004_r); |
| 62 | DECLARE_READ16_MEMBER(l7a1045_sound_port_0006_r); |
| 63 | |
| 64 | |
| 65 | }; |
| 66 | |
| 67 | extern const device_type L7A1045; |
trunk/src/mame/audio/hng64.c
r245316 | r245317 | |
200 | 200 | |
201 | 201 | } |
202 | 202 | |
203 | | READ16_MEMBER(hng64_state::hng64_sound_port_0004_r) |
204 | | { |
205 | | // it writes the channel select before reading this.. so either it works on channels, or the command.. |
206 | | // read in irq5 |
207 | | printf("%08x: hng64_sound_port_0004_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel); |
208 | | return rand(); |
209 | | } |
210 | 203 | |
211 | | READ16_MEMBER(hng64_state::hng64_sound_port_0006_r) |
212 | | { |
213 | | // it writes the channel select before reading this.. so either it works on channels, or the command.. |
214 | | // read in irq5 |
215 | | printf("%08x: hng64_sound_port_0006_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel); |
216 | | return rand(); |
217 | | } |
218 | | |
219 | 204 | READ16_MEMBER(hng64_state::hng64_sound_port_0008_r) |
220 | 205 | { |
221 | 206 | // read in irq5 |
r245316 | r245317 | |
223 | 208 | return rand(); |
224 | 209 | } |
225 | 210 | |
226 | | WRITE16_MEMBER(hng64_state::hng64_sound_select_w) |
227 | | { |
228 | | // I'm guessing these addresses are the sound chip / DSP? |
229 | 211 | |
230 | | // ---- ---- 000c cccc |
231 | | // c = channel |
232 | 212 | |
233 | | if (data & 0x00e0) printf("hng64_sound_select_w unknown channel %02x\n", data & 0x00ff); |
234 | | |
235 | | UINT8 command = data >> 8; |
236 | | |
237 | | switch (command) |
238 | | { |
239 | | case 0x00: |
240 | | case 0x01: |
241 | | case 0x02: |
242 | | case 0x03: // 00003fffffff (startup only?) |
243 | | case 0x04: // doesn't use 6 |
244 | | case 0x05: // 00003fffffff (mostly, often) |
245 | | case 0x06: // 00007ff0ffff mostly |
246 | | case 0x07: // 0000000f0708 etc. (low values) |
247 | | case 0x08: // doesn't write to 2/4/6 with this set?? |
248 | | case 0x09: // doesn't write to 2/4/6 with this set?? |
249 | | case 0x0a: // random looking values |
250 | | |
251 | | break; |
252 | | |
253 | | default: |
254 | | printf("hng64_sound_select_w unrecognized command %02x\n", command); |
255 | | break; |
256 | | } |
257 | | |
258 | | COMBINE_DATA(&m_audiochannel); |
259 | | } |
260 | | |
261 | | WRITE16_MEMBER(hng64_state::hng64_sound_data_02_w) |
262 | | { |
263 | | m_audiodat[m_audiochannel].dat[2] = data; |
264 | | |
265 | | // if ((m_audiochannel & 0xff00) == 0x0a00) |
266 | | // printf("write port 0x0002 chansel %04x data %04x (%04x%04x%04x)\n", m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]); |
267 | | } |
268 | | |
269 | | WRITE16_MEMBER(hng64_state::hng64_sound_data_04_w) |
270 | | { |
271 | | m_audiodat[m_audiochannel].dat[1] = data; |
272 | | |
273 | | // if ((m_audiochannel & 0xff00) == 0x0a00) |
274 | | // printf("write port 0x0004 chansel %04x data %04x (%04x%04x%04x)\n", m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]); |
275 | | } |
276 | | WRITE16_MEMBER(hng64_state::hng64_sound_data_06_w) |
277 | | { |
278 | | m_audiodat[m_audiochannel].dat[0] = data; |
279 | | |
280 | | // if ((m_audiochannel & 0xff00) == 0x0a00) |
281 | | // printf("write port 0x0006 chansel %04x data %04x (%04x%04x%04x)\n", m_audiochannel, data, m_audiodat[m_audiochannel].dat[0], m_audiodat[m_audiochannel].dat[1], m_audiodat[m_audiochannel].dat[2]); |
282 | | } |
283 | | |
284 | 213 | // but why not just use the V33/V53 XA mode?? |
285 | 214 | WRITE16_MEMBER(hng64_state::hng64_sound_bank_w) |
286 | 215 | { |
r245316 | r245317 | |
366 | 295 | } |
367 | 296 | |
368 | 297 | static ADDRESS_MAP_START( hng_sound_io, AS_IO, 16, hng64_state ) |
369 | | AM_RANGE(0x0000, 0x0001) AM_WRITE( hng64_sound_select_w ) |
370 | | AM_RANGE(0x0002, 0x0003) AM_WRITE( hng64_sound_data_02_w ) |
371 | | AM_RANGE(0x0004, 0x0005) AM_READWRITE( hng64_sound_port_0004_r, hng64_sound_data_04_w ) |
372 | | AM_RANGE(0x0006, 0x0007) AM_READWRITE( hng64_sound_port_0006_r, hng64_sound_data_06_w ) |
| 298 | AM_RANGE(0x0000, 0x0007) AM_DEVREADWRITE("l7a1045", l7a1045_sound_device, l7a1045_sound_r, l7a1045_sound_w ) |
| 299 | |
373 | 300 | AM_RANGE(0x0008, 0x0009) AM_READWRITE( hng64_sound_port_0008_r, hng64_sound_port_0008_w ) |
374 | 301 | AM_RANGE(0x000a, 0x000b) AM_WRITE( hng64_sound_port_000a_w ) |
375 | 302 | AM_RANGE(0x000c, 0x000d) AM_WRITE( hng64_sound_port_000c_w ) |
r245316 | r245317 | |
444 | 371 | MCFG_V53_TCU_OUT1_HANDLER(WRITELINE(hng64_state, tcu_tm1_cb)) |
445 | 372 | MCFG_V53_TCU_OUT2_HANDLER(WRITELINE(hng64_state, tcu_tm2_cb)) |
446 | 373 | |
| 374 | MCFG_SOUND_ADD("l7a1045", L7A1045, 16000000 ) // ?? |
| 375 | MCFG_SOUND_ROUTE(1, "lspeaker", 1.0) |
| 376 | MCFG_SOUND_ROUTE(0, "rspeaker", 1.0) |
| 377 | |
447 | 378 | MACHINE_CONFIG_END |