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hng64: push code for what I believe is the sound chip into it's own file (nw)
This commit is contained in:
mamehaze
parent
945ff007a6
commit
ad76983e54
6 changed files with 303 additions and 89 deletions
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@ -432,6 +432,17 @@ if (SOUNDS["K056800"]~=null) then
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end
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---------------------------------------------------
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-- L7A1045 L6028 DSP-A
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--@src/emu/sound/l7a1045_l6028_dsp_a.h,SOUNDS += L7A1045
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---------------------------------------------------
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if (SOUNDS["L7A1045"]~=null) then
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files {
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MAME_DIR .. "src/emu/sound/l7a1045_l6028_dsp_a.c",
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}
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end
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---------------------------------------------------
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-- LMC1992 mixer chip
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@ -252,6 +252,7 @@ SOUNDS["MOS7360"] = true
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SOUNDS["SB0400"] = true
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SOUNDS["AC97"] = true
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SOUNDS["ES1373"] = true
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SOUNDS["L7A1045"] = true
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--------------------------------------------------
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-- specify available video cores
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217
src/emu/sound/l7a1045_l6028_dsp_a.c
Normal file
217
src/emu/sound/l7a1045_l6028_dsp_a.c
Normal file
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@ -0,0 +1,217 @@
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/***************************************************************************
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L7A1045 L6028 DSP-A
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(QFP120 package)
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this is the audio chip used on the following
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SNK Hyper NeoGeo 64 (arcade platform)
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AKAI MPC3000 (synth)
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both are driven by a V53, the MPC3000 isn't dumped.
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appears to write a register number and channel/voice using
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l7a1045_sound_select_w (offset 0)
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format:
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---- rrrr ---c cccc
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r = register, c = channel
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the channel select appears to address 32 different voices (5-bits)
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the register select appears to use 4-bits with 0x0 to 0xa being valid
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the registers data is written / read using offsets 1,2,3 after
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setting the register + channel, this gives 3 16-bit values for
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each register.
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register format:
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offset 3 offset 2 offset 1
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fedcba9876543210 | fedcba9876543210 | fedcba9876543210
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0 ---------------- ---------------- ----------------
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1 ---------------- ---------------- ----------------
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2 ---------------- ---------------- ----------------
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3 ---------------- ---------------- ----------------
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4 ---------------- ---------------- ----------------
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5 ---------------- ---------------- ----------------
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6 ---------------- ---------------- ----------------
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7 ---------------- ---------------- ----------------
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8 ---------------- ---------------- ---------------- (read only?)
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9 ---------------- ---------------- ---------------- (read only?)
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a ---------------- ---------------- ----------------
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Registers are not yet understood.
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Some of the other ports on the HNG64 sound CPU may also be tied
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to this chip, this isn't yet clear.
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Sample data format TBA
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***************************************************************************/
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#include "emu.h"
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#include "l7a1045_l6028_dsp_a.h"
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// device type definition
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const device_type L7A1045 = &device_creator<l7a1045_sound_device>;
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// l7a1045_sound_device - constructor
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//-------------------------------------------------
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l7a1045_sound_device::l7a1045_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
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: device_t(mconfig, L7A1045, "L7A1045 L6028 DSP-A", tag, owner, clock, "l7a1045_custom", __FILE__),
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device_sound_interface(mconfig, *this),
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m_stream(NULL)
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/*m_key(0),
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m_base(NULL)*/
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void l7a1045_sound_device::device_start()
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{
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/* Allocate the stream */
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m_stream = stream_alloc(0, 2, clock() / 384);
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}
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//-------------------------------------------------
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// sound_stream_update - handle a stream update
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//-------------------------------------------------
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void l7a1045_sound_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
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{
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/* Clear the buffers */
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memset(outputs[0], 0, samples*sizeof(*outputs[0]));
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memset(outputs[1], 0, samples*sizeof(*outputs[1]));
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}
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WRITE16_MEMBER( l7a1045_sound_device::l7a1045_sound_w )
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{
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m_stream->update();
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switch (offset)
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{
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case 0x00:l7a1045_sound_select_w(space, offset, data, mem_mask); break;
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case 0x01:l7a1045_sound_data_02_w(space, offset, data, mem_mask); break;
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case 0x02:l7a1045_sound_data_04_w(space, offset, data, mem_mask); break;
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case 0x03:l7a1045_sound_data_06_w(space, offset, data, mem_mask); break;
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}
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}
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READ16_MEMBER( l7a1045_sound_device::l7a1045_sound_r )
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{
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m_stream->update();
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switch (offset)
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{
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case 0x00:
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case 0x01:
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printf("%08x: l7a1045_sound_r unknown offset %02x\n", space.device().safe_pc(), offset * 2);
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return 0x0000;
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case 0x02: return l7a1045_sound_port_0004_r(space, offset, mem_mask);
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case 0x03: return l7a1045_sound_port_0006_r(space, offset, mem_mask);
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}
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return 0x000;
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}
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WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_select_w)
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{
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// I'm guessing these addresses are the sound chip / DSP?
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// ---- ---- 000c cccc
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// c = channel
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if (data & 0x00e0) printf("%08x: l7a1045_sound_select_w unknown channel %02x\n", space.device().safe_pc(), data & 0x00ff);
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UINT8 command = data >> 8;
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switch (command)
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{
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case 0x00:
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case 0x01:
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case 0x02:
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case 0x03: // 00003fffffff (startup only?)
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case 0x04: // doesn't use 6
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case 0x05: // 00003fffffff (mostly, often)
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case 0x06: // 00007ff0ffff mostly
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case 0x07: // 0000000f0708 etc. (low values)
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case 0x08: // doesn't write to 2/4/6 with this set??
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case 0x09: // doesn't write to 2/4/6 with this set??
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case 0x0a: // random looking values
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break;
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default:
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printf("%08x: l7a1045_sound_select_w unrecognized command %02x\n", space.device().safe_pc(), command);
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break;
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}
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COMBINE_DATA(&m_audiochannel);
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}
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WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_02_w)
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{
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m_audiodat[m_audiochannel].dat[2] = data;
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// if ((m_audiochannel & 0xff00) == 0x0a00)
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// 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]);
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}
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WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_04_w)
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{
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m_audiodat[m_audiochannel].dat[1] = data;
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// if ((m_audiochannel & 0xff00) == 0x0a00)
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// 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]);
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}
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WRITE16_MEMBER(l7a1045_sound_device::l7a1045_sound_data_06_w)
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{
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m_audiodat[m_audiochannel].dat[0] = data;
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// if ((m_audiochannel & 0xff00) == 0x0a00)
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// 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]);
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}
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READ16_MEMBER(l7a1045_sound_device::l7a1045_sound_port_0004_r)
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{
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// it writes the channel select before reading this.. so either it works on channels, or the command..
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// read in irq5
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printf("%08x: l7a1045_sound_port_0004_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
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return rand();
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}
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READ16_MEMBER(l7a1045_sound_device::l7a1045_sound_port_0006_r)
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{
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// it writes the channel select before reading this.. so either it works on channels, or the command..
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// read in irq5
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printf("%08x: l7a1045_sound_port_0006_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
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return rand();
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}
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67
src/emu/sound/l7a1045_l6028_dsp_a.h
Normal file
67
src/emu/sound/l7a1045_l6028_dsp_a.h
Normal file
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@ -0,0 +1,67 @@
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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struct l7a1045_voice
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{
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/*
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l7a1045_voice() :
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pos(0),
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frac(0)
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{
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memset(regs, 0, sizeof(UINT32)*8);
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}
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UINT32 regs[8];
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UINT32 pos;
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UINT32 frac;
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*/
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};
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// ======================> l7a1045_sound_device
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class l7a1045_sound_device : public device_t,
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public device_sound_interface
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{
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public:
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l7a1045_sound_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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~l7a1045_sound_device() { }
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// void set_base(INT8* base) { m_base = base; }
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DECLARE_WRITE16_MEMBER( l7a1045_sound_w );
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DECLARE_READ16_MEMBER( l7a1045_sound_r );
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protected:
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// device-level overrides
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virtual void device_start();
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// sound stream update overrides
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virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
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private:
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sound_stream *m_stream;
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// l7a1045_voice m_voice[32];
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// UINT16 m_key;
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// INT8* m_base;
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UINT16 m_audiochannel;
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struct l7a1045_48bit_data {
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UINT16 dat[3];
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};
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l7a1045_48bit_data m_audiodat[0x10000];
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DECLARE_WRITE16_MEMBER(l7a1045_sound_select_w);
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DECLARE_WRITE16_MEMBER(l7a1045_sound_data_02_w);
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DECLARE_WRITE16_MEMBER(l7a1045_sound_data_04_w);
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DECLARE_WRITE16_MEMBER(l7a1045_sound_data_06_w);
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DECLARE_READ16_MEMBER(l7a1045_sound_port_0004_r);
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DECLARE_READ16_MEMBER(l7a1045_sound_port_0006_r);
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};
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extern const device_type L7A1045;
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@ -200,21 +200,6 @@ WRITE16_MEMBER(hng64_state::hng64_sound_port_0008_w)
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}
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READ16_MEMBER(hng64_state::hng64_sound_port_0004_r)
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{
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// it writes the channel select before reading this.. so either it works on channels, or the command..
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// read in irq5
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printf("%08x: hng64_sound_port_0004_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
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return rand();
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}
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READ16_MEMBER(hng64_state::hng64_sound_port_0006_r)
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{
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// it writes the channel select before reading this.. so either it works on channels, or the command..
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// read in irq5
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printf("%08x: hng64_sound_port_0006_r mask (%04x) chn %04x\n", space.device().safe_pc(), mem_mask, m_audiochannel);
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return rand();
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}
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READ16_MEMBER(hng64_state::hng64_sound_port_0008_r)
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{
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@ -223,63 +208,7 @@ READ16_MEMBER(hng64_state::hng64_sound_port_0008_r)
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return rand();
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}
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WRITE16_MEMBER(hng64_state::hng64_sound_select_w)
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{
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// I'm guessing these addresses are the sound chip / DSP?
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// ---- ---- 000c cccc
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// c = channel
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if (data & 0x00e0) printf("hng64_sound_select_w unknown channel %02x\n", data & 0x00ff);
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UINT8 command = data >> 8;
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switch (command)
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{
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case 0x00:
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case 0x01:
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case 0x02:
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case 0x03: // 00003fffffff (startup only?)
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case 0x04: // doesn't use 6
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case 0x05: // 00003fffffff (mostly, often)
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case 0x06: // 00007ff0ffff mostly
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case 0x07: // 0000000f0708 etc. (low values)
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case 0x08: // doesn't write to 2/4/6 with this set??
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case 0x09: // doesn't write to 2/4/6 with this set??
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case 0x0a: // random looking values
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break;
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default:
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printf("hng64_sound_select_w unrecognized command %02x\n", command);
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break;
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}
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COMBINE_DATA(&m_audiochannel);
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}
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WRITE16_MEMBER(hng64_state::hng64_sound_data_02_w)
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{
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m_audiodat[m_audiochannel].dat[2] = data;
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// if ((m_audiochannel & 0xff00) == 0x0a00)
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// 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]);
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}
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WRITE16_MEMBER(hng64_state::hng64_sound_data_04_w)
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{
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m_audiodat[m_audiochannel].dat[1] = data;
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// if ((m_audiochannel & 0xff00) == 0x0a00)
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// 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]);
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}
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WRITE16_MEMBER(hng64_state::hng64_sound_data_06_w)
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{
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m_audiodat[m_audiochannel].dat[0] = data;
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// if ((m_audiochannel & 0xff00) == 0x0a00)
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// 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]);
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}
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// but why not just use the V33/V53 XA mode??
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WRITE16_MEMBER(hng64_state::hng64_sound_bank_w)
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@ -366,10 +295,8 @@ READ16_MEMBER(hng64_state::hng64_sound_port_0104_r)
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}
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static ADDRESS_MAP_START( hng_sound_io, AS_IO, 16, hng64_state )
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AM_RANGE(0x0000, 0x0001) AM_WRITE( hng64_sound_select_w )
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AM_RANGE(0x0002, 0x0003) AM_WRITE( hng64_sound_data_02_w )
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AM_RANGE(0x0004, 0x0005) AM_READWRITE( hng64_sound_port_0004_r, hng64_sound_data_04_w )
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AM_RANGE(0x0006, 0x0007) AM_READWRITE( hng64_sound_port_0006_r, hng64_sound_data_06_w )
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AM_RANGE(0x0000, 0x0007) AM_DEVREADWRITE("l7a1045", l7a1045_sound_device, l7a1045_sound_r, l7a1045_sound_w )
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AM_RANGE(0x0008, 0x0009) AM_READWRITE( hng64_sound_port_0008_r, hng64_sound_port_0008_w )
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AM_RANGE(0x000a, 0x000b) AM_WRITE( hng64_sound_port_000a_w )
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AM_RANGE(0x000c, 0x000d) AM_WRITE( hng64_sound_port_000c_w )
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@ -444,4 +371,8 @@ MACHINE_CONFIG_FRAGMENT( hng64_audio )
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MCFG_V53_TCU_OUT1_HANDLER(WRITELINE(hng64_state, tcu_tm1_cb))
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MCFG_V53_TCU_OUT2_HANDLER(WRITELINE(hng64_state, tcu_tm2_cb))
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MCFG_SOUND_ADD("l7a1045", L7A1045, 16000000 ) // ??
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MCFG_SOUND_ROUTE(1, "lspeaker", 1.0)
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MCFG_SOUND_ROUTE(0, "rspeaker", 1.0)
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MACHINE_CONFIG_END
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@ -1,6 +1,7 @@
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#include "machine/msm6242.h"
|
||||
#include "cpu/mips/mips3.h"
|
||||
#include "cpu/nec/v53.h"
|
||||
#include "sound/l7a1045_l6028_dsp_a.h"
|
||||
|
||||
enum
|
||||
{
|
||||
|
|
@ -362,21 +363,7 @@ public:
|
|||
DECLARE_WRITE_LINE_MEMBER(tcu_tm1_cb);
|
||||
DECLARE_WRITE_LINE_MEMBER(tcu_tm2_cb);
|
||||
|
||||
UINT16 m_audiochannel;
|
||||
|
||||
struct hng64_48bit_data {
|
||||
UINT16 dat[3];
|
||||
};
|
||||
|
||||
hng64_48bit_data m_audiodat[0x10000];
|
||||
|
||||
DECLARE_WRITE16_MEMBER(hng64_sound_select_w);
|
||||
DECLARE_WRITE16_MEMBER(hng64_sound_data_02_w);
|
||||
DECLARE_WRITE16_MEMBER(hng64_sound_data_04_w);
|
||||
DECLARE_WRITE16_MEMBER(hng64_sound_data_06_w);
|
||||
|
||||
DECLARE_READ16_MEMBER(hng64_sound_port_0004_r);
|
||||
DECLARE_READ16_MEMBER(hng64_sound_port_0006_r);
|
||||
|
||||
DECLARE_READ16_MEMBER(hng64_sound_port_0008_r);
|
||||
DECLARE_WRITE16_MEMBER(hng64_sound_port_0008_w);
|
||||
|
|
|
|||
Loading…
Reference in a new issue