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Added preliminary sound to Dulmont Magnum [smf]

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smf- 2016-12-03 00:48:26 +00:00
parent 8ab4957f97
commit 43bf02b759
1 changed files with 18 additions and 2 deletions
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20
src/mame/drivers/magnum.cpp
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@ -8,6 +8,7 @@
#include "emu.h"
#include "cpu/i86/i186.h"
#include "machine/cdp1879.h"
#include "sound/beep.h"
class magnum_state : public driver_device
{
@ -15,11 +16,13 @@ public:
magnum_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_palette(*this, "palette"),
m_cgrom(*this, "cgrom")
m_cgrom(*this, "cgrom"),
m_beep(*this, "beep")
{}
DECLARE_READ8_MEMBER(lcd_r);
DECLARE_WRITE8_MEMBER(lcd_w);
DECLARE_WRITE8_MEMBER(beep_w);
u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
protected:
virtual void machine_reset() override;
@ -27,6 +30,8 @@ protected:
private:
required_device<palette_device> m_palette;
required_memory_region m_cgrom;
required_device<beep_device> m_beep;
struct lcd
{
u8 vram[640];
@ -112,6 +117,12 @@ WRITE8_MEMBER(magnum_state::lcd_w)
}
}
WRITE8_MEMBER(magnum_state::beep_w)
{
if (data & ~1) printf("beep_w unmapped bits %02x\n", data);
m_beep->set_state(BIT(data, 0));
}
static ADDRESS_MAP_START( magnum_map, AS_PROGRAM, 16, magnum_state )
AM_RANGE(0x00000, 0x3ffff) AM_RAM // fixed 256k for now
AM_RANGE(0xe0000, 0xfffff) AM_ROM AM_REGION("bios", 0)
@ -122,6 +133,7 @@ static ADDRESS_MAP_START( magnum_io, AS_IO, 16, magnum_state )
//AM_RANGE(0x000a, 0x000b) cdp1854 1
//AM_RANGE(0x000e, 0x000f) cpd1854 2
AM_RANGE(0x0018, 0x001f) AM_READWRITE8(lcd_r, lcd_w, 0x00ff)
AM_RANGE(0x0056, 0x0057) AM_WRITE8(beep_w, 0x00ff)
AM_RANGE(0x0080, 0x008f) AM_DEVREADWRITE8("rtc", cdp1879_device, read, write, 0x00ff)
ADDRESS_MAP_END
@ -140,6 +152,10 @@ static MACHINE_CONFIG_START( magnum, magnum_state )
MCFG_SCREEN_VISIBLE_AREA(0, 6*80-1, 0, 9*16-1)
MCFG_PALETTE_ADD_MONOCHROME("palette")
MCFG_SPEAKER_STANDARD_MONO("speaker")
MCFG_SOUND_ADD("beep", BEEP, 500) /// frequency is guessed
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "speaker", 0.50)
MACHINE_CONFIG_END
ROM_START( magnum )
@ -160,4 +176,4 @@ ROM_START( magnum )
ROM_LOAD("hd44780_a00.bin", 0x0000, 0x1000, BAD_DUMP CRC(01d108e2) SHA1(bc0cdf0c9ba895f22e183c7bd35a3f655f2ca96f))
ROM_END
COMP( 1983, magnum, 0, 0, magnum, 0, driver_device, 0, "Dulmont", "Magnum", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW)
COMP( 1983, magnum, 0, 0, magnum, 0, driver_device, 0, "Dulmont", "Magnum", MACHINE_NOT_WORKING | MACHINE_IMPERFECT_SOUND)