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Added preliminary sound to Little Robin [Angelo Salese]

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Angelo Salese 2012-03-27 23:17:38 +00:00
parent 7c14a675a0
commit b01c5d93da
1 changed files with 41 additions and 6 deletions
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47
src/mame/drivers/littlerb.c
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@ -19,6 +19,9 @@ write addresses?
most graphics are stored as packed 4bpp in RAM, expanded before most graphics are stored as packed 4bpp in RAM, expanded before
writing to the vdp device. actual gfx are 8bpp. writing to the vdp device. actual gfx are 8bpp.
Sound pitch is directly correlated with irqs, scanline timings and pixel clock,
so it's surely not 100% correct. Sound sample playbacks looks fine at current time tho.
Dip sw.1 Dip sw.1
-------- --------
@ -65,13 +68,16 @@ Dip sw.2
#include "emu.h" #include "emu.h"
#include "cpu/m68000/m68000.h" #include "cpu/m68000/m68000.h"
#include "video/ramdac.h" #include "video/ramdac.h"
#include "sound/dac.h"
class littlerb_state : public driver_device class littlerb_state : public driver_device
{ {
public: public:
littlerb_state(const machine_config &mconfig, device_type type, const char *tag) littlerb_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag), : driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu") m_maincpu(*this, "maincpu"),
m_dacl(*this, "dacl"),
m_dacr(*this, "dacr")
{ } { }
UINT16 m_vdp_address_low; UINT16 m_vdp_address_low;
@ -89,8 +95,11 @@ public:
int m_type2_writes; int m_type2_writes;
UINT32 m_lasttype2pc; UINT32 m_lasttype2pc;
UINT8 m_sound_index_l,m_sound_index_r; UINT8 m_sound_index_l,m_sound_index_r;
UINT16 m_sound_pointer_l,m_sound_pointer_r;
required_device<cpu_device> m_maincpu; required_device<cpu_device> m_maincpu;
required_device<dac_device> m_dacl;
required_device<dac_device> m_dacr;
}; };
@ -303,14 +312,16 @@ static WRITE16_HANDLER( littlerb_l_sound_w )
{ {
littlerb_state *state = space->machine().driver_data<littlerb_state>(); littlerb_state *state = space->machine().driver_data<littlerb_state>();
state->m_sound_index_l = (data >> sound_data_shift(space->machine())) & 0xff; state->m_sound_index_l = (data >> sound_data_shift(space->machine())) & 0xff;
popmessage("%04x %04x",state->m_sound_index_l,state->m_sound_index_r); state->m_sound_pointer_l = 0;
//popmessage("%04x %04x",state->m_sound_index_l,state->m_sound_index_r);
} }
static WRITE16_HANDLER( littlerb_r_sound_w ) static WRITE16_HANDLER( littlerb_r_sound_w )
{ {
littlerb_state *state = space->machine().driver_data<littlerb_state>(); littlerb_state *state = space->machine().driver_data<littlerb_state>();
state->m_sound_index_r = (data >> sound_data_shift(space->machine())) & 0xff; state->m_sound_index_r = (data >> sound_data_shift(space->machine())) & 0xff;
popmessage("%04x %04x",state->m_sound_index_l,state->m_sound_index_r); state->m_sound_pointer_r = 0;
//popmessage("%04x %04x",state->m_sound_index_l,state->m_sound_index_r);
} }
static ADDRESS_MAP_START( littlerb_main, AS_PROGRAM, 16 ) static ADDRESS_MAP_START( littlerb_main, AS_PROGRAM, 16 )
@ -481,9 +492,26 @@ static TIMER_DEVICE_CALLBACK( littlerb_scanline )
littlerb_state *state = timer.machine().driver_data<littlerb_state>(); littlerb_state *state = timer.machine().driver_data<littlerb_state>();
int scanline = param; int scanline = param;
if((scanline % 2) == 0)
{
UINT8 res;
UINT8 *sample_rom = timer.machine().region("samples")->base();
res = sample_rom[state->m_sound_pointer_l|(state->m_sound_index_l<<10)|0x40000];
dac_signed_w(state->m_dacl, 0, res);
res = sample_rom[state->m_sound_pointer_r|(state->m_sound_index_r<<10)|0x00000];
dac_signed_w(state->m_dacr, 0, res);
state->m_sound_pointer_l++;
state->m_sound_pointer_l&=0x3ff;
state->m_sound_pointer_r++;
state->m_sound_pointer_r&=0x3ff;
}
// logerror("IRQ\n"); // logerror("IRQ\n");
if(scanline == 256) if(scanline == 256)
{
device_set_input_line(state->m_maincpu, 4, HOLD_LINE); device_set_input_line(state->m_maincpu, 4, HOLD_LINE);
}
} }
static MACHINE_CONFIG_START( littlerb, littlerb_state ) static MACHINE_CONFIG_START( littlerb, littlerb_state )
@ -504,6 +532,13 @@ static MACHINE_CONFIG_START( littlerb, littlerb_state )
MCFG_RAMDAC_ADD("ramdac", ramdac_intf, ramdac_map) MCFG_RAMDAC_ADD("ramdac", ramdac_intf, ramdac_map)
// MCFG_PALETTE_INIT(littlerb) // MCFG_PALETTE_INIT(littlerb)
MCFG_SPEAKER_STANDARD_STEREO("lspeaker","rspeaker")
MCFG_SOUND_ADD("dacl", DAC, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "lspeaker", 0.50)
MCFG_SOUND_ADD("dacr", DAC, 0)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "rspeaker", 0.50)
MACHINE_CONFIG_END MACHINE_CONFIG_END
ROM_START( littlerb ) ROM_START( littlerb )
@ -512,9 +547,9 @@ ROM_START( littlerb )
ROM_LOAD16_BYTE( "romb.u29", 0x00000, 0x80000, CRC(b2fb1d61) SHA1(9a9d7176c241928d07af651e5f7f21d4f019701d) ) ROM_LOAD16_BYTE( "romb.u29", 0x00000, 0x80000, CRC(b2fb1d61) SHA1(9a9d7176c241928d07af651e5f7f21d4f019701d) )
ROM_REGION( 0x80000, "samples", 0 ) /* sound samples */ ROM_REGION( 0x80000, "samples", 0 ) /* sound samples */
ROM_LOAD16_BYTE( "romc.u26", 0x00001, 0x40000, CRC(f193c5b6) SHA1(95548a40e2b5064c558b36cabbf507d23678b1b2) ) ROM_LOAD( "romc.u26", 0x40000, 0x40000, CRC(f193c5b6) SHA1(95548a40e2b5064c558b36cabbf507d23678b1b2) )
ROM_LOAD16_BYTE( "romd.u32", 0x00000, 0x40000, CRC(d6b81583) SHA1(b7a63d18a41ccac4d3db9211de0b0cdbc914317a) ) ROM_LOAD( "romd.u32", 0x00000, 0x40000, CRC(d6b81583) SHA1(b7a63d18a41ccac4d3db9211de0b0cdbc914317a) )
ROM_END ROM_END
GAME( 1993, littlerb, 0, littlerb, littlerb, 0, ROT0, "TCH", "Little Robin", GAME_NOT_WORKING|GAME_NO_SOUND ) GAME( 1993, littlerb, 0, littlerb, littlerb, 0, ROT0, "TCH", "Little Robin", GAME_NOT_WORKING|GAME_IMPERFECT_GRAPHICS|GAME_IMPERFECT_SOUND )