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this should be more accurate. nw.

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This commit is contained in:
Fabio Priuli 2013-03-05 18:49:26 +00:00
parent 91e4b64b05
commit 9bade1ce3f
1 changed files with 41 additions and 41 deletions
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82
src/mess/drivers/snes.c
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@ -70,7 +70,7 @@ public:
DECLARE_READ8_MEMBER(snes_oldjoy1_read);
DECLARE_READ8_MEMBER(snes_oldjoy2_read);
UINT8 m_sfx_ram[0x200000]; // or 0x100000?
UINT8 m_sfx_ram[0x200000]; // or 0x100000?
};
/*************************************
@ -191,31 +191,8 @@ READ8_MEMBER( snes_console_state::snes_lo_r )
if ((m_has_addon_chip == HAS_SPC7110 || m_has_addon_chip == HAS_SPC7110_RTC)
&& offset >= 0x500000 && offset < 0x510000)
return spc7110_mmio_read(space, 0x4800);
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset < 0x400000)
{
if (address >= 0x3000 && address < 0x3300)
return superfx_mmio_read(m_superfx, address);
if (address >= 0x6000 && address < 0x8000)
return superfx_access_ram(m_superfx) ? m_sfx_ram[offset & 0x1fff] : snes_open_bus_r(space, 0);
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset >= 0x400000 && offset < 0x600000)
{
if (superfx_access_rom(m_superfx))
return snes_ram[offset];
else
{
static const UINT8 sfx_data[16] = {
0x00, 0x01, 0x00, 0x01, 0x04, 0x01, 0x00, 0x01,
0x00, 0x01, 0x08, 0x01, 0x00, 0x01, 0x0c, 0x01,
};
return sfx_data[offset & 0x0f];
}
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset >= 0x600000)
return superfx_access_ram(m_superfx) ? m_sfx_ram[offset & 0xfffff] : snes_open_bus_r(space, 0);
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL)
return space.read_byte(offset + 0x800000); // [00-7f] same as [80-ff]
// base cart access
if (offset < 0x300000)
@ -286,8 +263,31 @@ READ8_MEMBER( snes_console_state::snes_hi_r )
if ((m_has_addon_chip == HAS_SPC7110 || m_has_addon_chip == HAS_SPC7110_RTC)
&& offset >= 0x500000)
return spc7110_bank7_read(space, offset - 0x400000);
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL)
return space.read_byte(offset); // [80-ff] same as [00-7f]
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset < 0x400000)
{
if (address >= 0x3000 && address < 0x3300)
return superfx_mmio_read(m_superfx, address);
if (address >= 0x6000 && address < 0x8000)
return superfx_access_ram(m_superfx) ? m_sfx_ram[offset & 0x1fff] : snes_open_bus_r(space, 0);
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset >= 0x400000 && offset < 0x600000)
{
if (superfx_access_rom(m_superfx))
return snes_ram[offset];
else
{
static const UINT8 sfx_data[16] = {
0x00, 0x01, 0x00, 0x01, 0x04, 0x01, 0x00, 0x01,
0x00, 0x01, 0x08, 0x01, 0x00, 0x01, 0x0c, 0x01,
};
return sfx_data[offset & 0x0f];
}
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset >= 0x600000)
return superfx_access_ram(m_superfx) ? m_sfx_ram[offset & 0xfffff] : snes_open_bus_r(space, 0);
// base cart access
if (offset < 0x400000)
@ -363,17 +363,8 @@ WRITE8_MEMBER( snes_console_state::snes_lo_w )
if (offset >= 0x300000 && offset < 0x310000 && address >= 0x6000 && address < 0x8000)
{ snes_ram[0x306000 + (address & 0x1fff)] = data; return; }
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset < 0x400000)
{
if (address >= 0x3000 && address < 0x3300)
{ superfx_mmio_write(m_superfx, address, data); return; }
if (address >= 0x6000 && address < 0x8000)
{ m_sfx_ram[offset & 0x1fff] = data; return; }
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset >= 0x600000)
{ m_sfx_ram[offset & 0xfffff] = data; return; }
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL)
{ space.write_byte(offset + 0x800000, data); return; } // [00-7f] same as [80-ff]
// base cart access
if (offset < 0x300000)
@ -455,8 +446,17 @@ WRITE8_MEMBER( snes_console_state::snes_hi_w )
if (offset >= 0x300000 && offset < 0x310000 && address >= 0x6000 && address < 0x8000)
{ snes_ram[0x306000 + (address & 0x1fff)] = data; return; }
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL)
{ space.write_byte(offset, data); return; } // [80-ff] same as [00-7f]
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset < 0x400000)
{
if (address >= 0x3000 && address < 0x3300)
{ superfx_mmio_write(m_superfx, address, data); return; }
if (address >= 0x6000 && address < 0x8000)
{ m_sfx_ram[offset & 0x1fff] = data; return; }
}
if (m_has_addon_chip == HAS_SUPERFX && m_superfx != NULL
&& offset >= 0x600000)
{ m_sfx_ram[offset & 0xfffff] = data; return; }
// base cart access
if (offset < 0x400000)