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This commit is contained in:
David Haywood 2016-10-05 16:42:02 +01:00
parent 73a81eaa39
commit 1bdbde7fa8
1 changed files with 44 additions and 8 deletions
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52
src/mame/drivers/mjsenpu.cpp
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@ -23,6 +23,7 @@ public:
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_oki(*this, "oki"),
m_mainram(*this, "mainram"),
m_vram(*this, "vram"),
m_palette(*this, "palette")
{
@ -32,6 +33,7 @@ public:
required_device<e132xt_device> m_maincpu;
required_device<okim6295_device> m_oki;
required_shared_ptr<UINT32> m_mainram;
required_shared_ptr<UINT32> m_vram;
UINT8 m_pal[0x200];
@ -43,6 +45,9 @@ public:
void set_palette(int offset);
DECLARE_WRITE8_MEMBER(oki_bank_w);
DECLARE_WRITE8_MEMBER(mux_w);
DECLARE_READ32_MEMBER(mjsenpu_speedup_r);
DECLARE_DRIVER_INIT(mjsenpu);
virtual void machine_start() override;
@ -85,14 +90,18 @@ WRITE8_MEMBER(mjsenpu_state::palette_high_w)
WRITE8_MEMBER(mjsenpu_state::oki_bank_w)
{
// or some input muxing?
// printf("oki bank_w %02x\n", data);
// or some input muxing?
if (data!=0x80 && data !=0x81)
printf("oki bank_w %02x\n", data);
}
WRITE8_MEMBER(mjsenpu_state::mux_w)
{
// printf("mux_w %02x\n", data);
}
static ADDRESS_MAP_START( mjsenpu_32bit_map, AS_PROGRAM, 32, mjsenpu_state )
AM_RANGE(0x00000000, 0x003fffff) AM_RAM
AM_RANGE(0x00000000, 0x003fffff) AM_RAM AM_SHARE("mainram")
AM_RANGE(0x40000000, 0x401fffff) AM_ROM AM_REGION("user2",0) // main game rom
AM_RANGE(0x80000000, 0x8001ffff) AM_RAM AM_SHARE("vram")
@ -116,7 +125,7 @@ static ADDRESS_MAP_START( mjsenpu_io, AS_IO, 32, mjsenpu_state )
AM_RANGE(0x4040, 0x4043) AM_READ_PORT("DSW2")
AM_RANGE(0x4050, 0x4053) AM_READ_PORT("DSW3")
// AM_RANGE(0x4060, 0x4063) AM_WRITE8 ( ) // input mux?
AM_RANGE(0x4060, 0x4063) AM_WRITE8( mux_w, 0x000000ff)
AM_RANGE(0x4070, 0x4073) AM_DEVREADWRITE8("oki", okim6295_device, read, write, 0x000000ff)
ADDRESS_MAP_END
@ -280,8 +289,6 @@ UINT32 mjsenpu_state::screen_update_mjsenpu(screen_device &screen, bitmap_ind16
}
}
return 0;
return 0;
}
@ -306,7 +313,7 @@ following clocks are on the PCB
static MACHINE_CONFIG_START( mjsenpu, mjsenpu_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", E132XT, 27000000) /* ?? Mhz */
MCFG_CPU_ADD("maincpu", E132XT, 27000000*2) /* ?? Mhz */
MCFG_CPU_PROGRAM_MAP(mjsenpu_32bit_map)
MCFG_CPU_IO_MAP(mjsenpu_io)
MCFG_CPU_VBLANK_INT_DRIVER("screen", mjsenpu_state, irq0_line_hold)
@ -344,10 +351,39 @@ ROM_END
READ32_MEMBER(mjsenpu_state::mjsenpu_speedup_r)
{
int pc = m_maincpu->pc();
if (pc == 0xadb8)
{
space.device().execute().spin_until_interrupt();
}
else
{
// printf("%08x\n", pc);
}
return m_mainram[0x23468/4];
}
DRIVER_INIT_MEMBER(mjsenpu_state,mjsenpu)
{
/*
0000ADAE: LDHU.D L42, L38, $0
0000ADB2: LDW.A 0, L39, $23468
0000ADB8: ADDI L38, $1
0000ADBA: STHU.D L42, L38, $0
0000ADBE: CMPI L39, $0
0000ADC0: BNE $adae
(loops for 744256 instructions)
*/
// not especially effective, might be wrong.
m_maincpu->space(AS_PROGRAM).install_read_handler(0x23468, 0x2346b, read32_delegate(FUNC(mjsenpu_state::mjsenpu_speedup_r), this));
}