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atomiswave: more correct ROM board PIO access (fixes ggisuka, rumblef2 crash)[MetalliC, CaH4e3]

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This commit is contained in:
MetalliC 2015-04-28 23:49:05 +03:00
parent 900a2e0bb6
commit d2c736443a
2 changed files with 16 additions and 7 deletions
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19
src/mame/machine/awboard.c
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@ -108,7 +108,7 @@ DEVICE_ADDRESS_MAP_START(submap, 16, aw_rom_board)
AM_RANGE(0x08, 0x09) AM_WRITE(mpr_first_file_index_w)
AM_RANGE(0x0a, 0x0b) AM_WRITE(mpr_file_offsetl_w)
AM_RANGE(0x0c, 0x0d) AM_WRITE(mpr_file_offseth_w)
AM_RANGE(0x40, 0x41) AM_READWRITE(adj_offset_r, adj_offset_w)
AM_RANGE(0x40, 0x41) AM_READWRITE(pio_r, pio_w)
ADDRESS_MAP_END
aw_rom_board::aw_rom_board(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock)
@ -255,14 +255,23 @@ void aw_rom_board::device_reset()
dma_limit = 0;
}
READ16_MEMBER(aw_rom_board::adj_offset_r)
READ16_MEMBER(aw_rom_board::pio_r)
{
return adjust_off;
UINT16 retval;
if (epr_offset == 0x7fffff)
retval = adjust_off;
else
retval = m_region->u16(epr_offset * 2);
epr_offset++;
return retval;
}
WRITE16_MEMBER(aw_rom_board::adj_offset_w)
WRITE16_MEMBER(aw_rom_board::pio_w)
{
adjust_off = data;
// write to ROM board address space, including FlashROM programming using CFI (TODO)
if (epr_offset == 0x7fffff) // special register which changes ROMBD addressing
adjust_off = data;
epr_offset++;
}
WRITE16_MEMBER(aw_rom_board::epr_offsetl_w)

4
src/mame/machine/awboard.h
View File

@ -22,8 +22,8 @@ public:
DECLARE_WRITE16_MEMBER(mpr_first_file_index_w); // 5f7010
DECLARE_WRITE16_MEMBER(mpr_file_offsetl_w); // 5f7014
DECLARE_WRITE16_MEMBER(mpr_file_offseth_w); // 5f7018
DECLARE_READ16_MEMBER(adj_offset_r); // 5f7080
DECLARE_WRITE16_MEMBER(adj_offset_w); // 5f7080
DECLARE_READ16_MEMBER(pio_r); // 5f7080
DECLARE_WRITE16_MEMBER(pio_w); // 5f7080
protected:
virtual void device_start();