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Preliminary ADPCM hook-up to Jantotsu,it plays something but it's not yet right. [Angelo Salese]
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Angelo Salese
parent
0fd71e350a
commit
0335419d51
@ -5,25 +5,26 @@
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driver by David Haywood and Angelo Salese
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Notes:
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-The 1-2 Player tiles on hand are actually shown on different screen sides.The Service Mode
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is for adjusting these screens (to not let the human opponent to read your tiles).
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-The 1st/2nd Player tiles on hand are actually shown on different screen sides.The Service
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Mode is for adjusting these screens (to not let the human opponent to read your tiles).
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TODO:
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-MSM5205 samples are wrongly played i.e. plays chi when it's clearly a pon.ADPCM index issue;
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-MSM5205 sample stop is wrong;
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-Video buffering? If you coin up,you can see the "credit 1" msg that gets build into the
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video bitmaps...
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-According to the flyer,color bitplanes might be wrong on the A-N mahjong charset,might be a
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BTANB however...
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-I need schematics / pcb photos (component + solder sides) to understand if the background
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color is hard-wired to the DIP-Switches or there's something else wrong.
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-Missing MSM5205 samples;
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============================================================================================
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Debug cheats:
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c01b-c028 player-1 tiles
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c02b-c038 right computer tiles
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c03b-c048 up computer tiles / player-2 tiles
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c04b-c058 left computer tiles
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c02b-c038 "right" computer tiles
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c03b-c048 "up" computer tiles / player-2 tiles
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c04b-c058 "left" computer tiles
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============================================================================================
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@ -64,6 +65,7 @@ dumped by sayu
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#include "driver.h"
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#include "cpu/z80/z80.h"
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#include "sound/sn76496.h"
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#include "sound/msm5205.h"
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static UINT8 *jan_bitmap_1,*jan_bitmap_2,*jan_bitmap_3,*jan_bitmap_4;
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static UINT8 vram_bank,col_bank;
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@ -210,6 +212,56 @@ static READ8_HANDLER( jantotsu_dsw2_r )
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return (input_port_read(space->machine, "DSW2") & 0x3f) | 0x80;
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}
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static UINT32 adpcm_pos;
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static UINT8 adpcm_idle;
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static int adpcm_data;
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static WRITE8_HANDLER( jan_adpcm_w )
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{
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switch (offset)
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{
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case 0:
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adpcm_pos = (data & 0xff) * 0x80;
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adpcm_idle = 0;
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msm5205_reset_w(0,0);
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// printf("%02x 0\n",data);
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break;
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/*same write as port 2?*/
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case 1:
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// adpcm_idle = 1;
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// msm5205_reset_w(0,1);
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// printf("%02x 1\n",data);
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break;
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}
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}
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static void jan_adpcm_int(const device_config *device)
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{
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static UINT8 trigger;
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if (adpcm_pos >= 0x8000 || adpcm_idle)
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{
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//adpcm_idle = 1;
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msm5205_reset_w(0,1);
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trigger = 0;
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}
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else
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{
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UINT8 *ROM = memory_region(device->machine, "adpcm");
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adpcm_data = ((trigger ? (ROM[adpcm_pos] & 0x0f) : (ROM[adpcm_pos] & 0xf0)>>4) );
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msm5205_data_w(0,adpcm_data & 0xf);
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trigger^=1;
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if(trigger == 0)
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{
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adpcm_pos++;
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if((ROM[adpcm_pos] & 0xff) == 0xff)
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adpcm_idle = 1;
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}
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}
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}
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static ADDRESS_MAP_START( jantotsu_map, ADDRESS_SPACE_PROGRAM, 8 )
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AM_RANGE(0x0000, 0xbfff) AM_ROM
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AM_RANGE(0xc000, 0xc7ff) AM_RAM
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@ -220,7 +272,7 @@ static ADDRESS_MAP_START( jantotsu_io, ADDRESS_SPACE_IO, 8 )
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ADDRESS_MAP_GLOBAL_MASK(0xff)
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AM_RANGE(0x00, 0x00) AM_READ_PORT("DSW1") AM_WRITE(sn76496_0_w)
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AM_RANGE(0x01, 0x01) AM_READ(jantotsu_dsw2_r) AM_WRITE(sn76496_1_w)
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//02-03 MSM samples
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AM_RANGE(0x02, 0x03) AM_WRITE(jan_adpcm_w)
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AM_RANGE(0x04, 0x04) AM_READWRITE(jantotsu_mux_r,jantotsu_mux_w)
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AM_RANGE(0x07, 0x07) AM_WRITE(bankaddr_w)
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ADDRESS_MAP_END
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@ -336,8 +388,16 @@ static MACHINE_RESET( jantotsu )
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mux_data = 0;
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/*Load hard-wired background color.*/
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col_bank = (input_port_read(machine, "DSW2") & 0xc0)>>3;
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adpcm_pos = 0;
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adpcm_idle = 1;
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}
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static const msm5205_interface msm5205_config =
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{
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jan_adpcm_int, /* interrupt function */
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MSM5205_S48_4B /* 8kHz */
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};
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static MACHINE_DRIVER_START( jantotsu )
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/* basic machine hardware */
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MDRV_CPU_ADD("main", Z80,18432000/4)
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@ -368,6 +428,10 @@ static MACHINE_DRIVER_START( jantotsu )
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MDRV_SOUND_ADD("sn2", SN76489A, 18432000/4)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
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MDRV_SOUND_ADD("adpcm", MSM5205, 288000)
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MDRV_SOUND_CONFIG(msm5205_config)
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MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00)
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MACHINE_DRIVER_END
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@ -381,7 +445,7 @@ ROM_START( jantotsu )
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ROM_LOAD( "jat-04.3e", 0x08000, 0x02000, CRC(734e029f) SHA1(75aa13397847b4db32c41aaa6ff2ac82f16bd7a2) )
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ROM_LOAD( "jat-05.4e", 0x0a000, 0x02000, CRC(1a725e1a) SHA1(1d39d607850f47b9389f41147d4570da8814f639) )
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ROM_REGION( 0x8000, "gfx1", 0 )
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ROM_REGION( 0x8000, "adpcm", 0 )
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ROM_LOAD( "jat-40.6b", 0x00000, 0x02000, CRC(2275253e) SHA1(64e9415faf2775c6b9ab497dce7fda8c4775192e) )
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ROM_LOAD( "jat-41.7b", 0x02000, 0x02000, CRC(ce08ed71) SHA1(8554e5e7ec178f57bed5fbdd5937e3a35f72c454) )
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ROM_LOAD( "jat-42.8b", 0x04000, 0x02000, CRC(3ac3efbf) SHA1(846faea7c7c01fb7500aa33a70d4b54e878c0e41) )
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