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found oki bank (nw)

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This commit is contained in:
David Haywood 2016-10-05 18:58:33 +01:00
parent 34b65e32b2
commit 8df6a532e0
1 changed files with 12 additions and 12 deletions
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24
src/mame/drivers/mjsenpu.cpp
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@ -9,11 +9,6 @@
SPR800F1
0011E
where is the OKI sound bank? the rom contains 2 banks and the
test mode even has checks for 2 banks, but I can't see a bank write.
enter test mode (F2) then press bet (M) a few times to get to the
sound test.
inputs need finishing off
*********************************************************************/
@ -118,17 +113,22 @@ WRITE32_MEMBER(mjsenpu_state::vram_w)
WRITE8_MEMBER(mjsenpu_state::control_w)
{
// bit 0 alternates frequently, using as video buffer, but that's a complete guess
m_control = data;
// bit 0x80 is always set?
// bit 0x40 not used?
// bit 0x20 not used?
// bit 7 is always set?
// bit 0x10 is the M6295 bank, samples <26 are the same in both banks and so bank switch isn't written for them, not even in sound test.
m_oki->set_rom_bank((data&0x10)>>4);
// other bits don't seem to be OKI bank?
// bits 0x08 and 0x04 seem to be hopper/ticket related? different ones get used depending on the dips
if (data &~0x93)
printf("control_w %02x\n", data);
// bit 0x02 could be coin counter?
// bit 0x01 alternates frequently, using as video buffer, but that's a complete guess
// if (data &~0x9e)
// printf("control_w %02x\n", data);
}
WRITE8_MEMBER(mjsenpu_state::mux_w)
@ -173,7 +173,7 @@ READ32_MEMBER(mjsenpu_state::muxed_inputs_r)
}
static ADDRESS_MAP_START( mjsenpu_32bit_map, AS_PROGRAM, 32, mjsenpu_state )
AM_RANGE(0x00000000, 0x003fffff) AM_RAM AM_SHARE("mainram")
AM_RANGE(0x00000000, 0x001fffff) AM_RAM AM_SHARE("mainram")
AM_RANGE(0x40000000, 0x401fffff) AM_ROM AM_REGION("user2",0) // main game rom
AM_RANGE(0x80000000, 0x8001ffff) AM_READWRITE(vram_r,vram_w)