static READ_HANDLER( bankedram_r )
{
if (videobank & 0x01)
{
if (videobank & 0x04)
return paletteram_r(offset + 0x0800);
else
return paletteram_r(offset);
}
else
return ram[offset];
}
static READ_HANDLER( bankedram_r )
{
if (palette_selected)
return paletteram_r(offset);
else
return ram[offset];
}
static READ_HANDLER( wardner_ram_rom_r )
{
int wardner_data = 0;
if (wardner_membank == 0)
{
int wardner_bank = offset + 0x8000;
offset &= 0xfff;
switch (wardner_bank & 0xe000)
{
case 0x8000: wardner_data = wardner_sprite_r(offset); break;
case 0xa000: if (offset < 0xe00) { wardner_data = paletteram_r(offset); }
else { wardner_data = wardner_spare_pal_ram_r(offset & 0x1ff); }
break;
case 0xc000: if (offset < 0x800) { wardner_data = wardner_sharedram_r(offset & 0x7ff); }
break;
default: break;
}
}
else
{
unsigned char *wardner_rom = memory_region(REGION_CPU1);
int wardner_rombank = 0x8000 * wardner_membank;
wardner_data = wardner_rom[wardner_rombank + offset];
}
return wardner_data;
}
static int scontra_bankedram_r(int offset)
{
if (palette_selected)
return paletteram_r(offset);
else
return ram[offset];
}
static READ_HANDLER( thunderx_bankedram_r )
{
if ((bank & 0x01) == 0)
{
if (bank & 0x10)
return unknownram[offset];
else
return paletteram_r(offset);
}
else
return ram[offset];
}
static int thunderx_bankedram_r(int offset)
{
if ((bank & 0x01) == 0)
{
if (bank & 0x10)
return unknownram[offset];
else
return paletteram_r(offset);
}
else
return ram[offset];
}
static READ8_HANDLER( bankedram_r )
{
if (rambank == 2)
return cbasebal_textram_r(offset); /* VRAM */
else if (rambank == 1)
{
if (offset < 0x800)
return paletteram_r(offset);
else return 0;
}
else
{
return cbasebal_scrollram_r(offset); /* SCROLL */
}
}
static READ_HANDLER( thunderx_bankedram_r )
{
if (rambank & 0x01)
return ram[offset];
else if (rambank & 0x10)
{
if (pmcbank)
{
// logerror("%04x read pmcram %04x\n",activecpu_get_pc(),offset);
return pmcram[offset];
}
else
{
logerror("%04x read pmc internal ram %04x\n",activecpu_get_pc(),offset);
return 0;
}
}
else
return paletteram_r(offset);
}
static READ8_HANDLER( spy_bankedram1_r )
{
if (rambank & 1)
{
return paletteram_r(offset);
}
else if (rambank & 2)
{
if (pmcbank)
{
/*logerror("%04x read pmcram %04x\n",activecpu_get_pc(),offset); */
return pmcram[offset];
}
else
{
/*logerror("%04x read pmc internal ram %04x\n",activecpu_get_pc(),offset); */
return 0;
}
}
else
return ram[offset];
}
int mgakuen_paletteram_r(int offset)
{
return paletteram_r(offset);
}
int pang_paletteram_r(int offset)
{
if (paletteram_bank) return paletteram_r(offset + 0x800);
return paletteram_r(offset);
}
static READ8_HANDLER( le_4800_r )
{
if (cur_control2 & 0x10) /* RAM enable */
{
return paletteram_r(offset);
}
else
{
if (offset < 0x0800)
{
switch (offset)
{
case 0x40:
case 0x41:
case 0x42:
case 0x43:
case 0x44:
case 0x45:
case 0x46:
return K053244_r(offset-0x40);
break;
case 0x80:
case 0x81:
case 0x82:
case 0x83:
case 0x84:
case 0x85:
case 0x86:
case 0x87:
case 0x88:
case 0x89:
case 0x8a:
case 0x8b:
case 0x8c:
case 0x8d:
case 0x8e:
case 0x8f:
case 0x90:
case 0x91:
case 0x92:
case 0x93:
case 0x94:
case 0x95:
case 0x96:
case 0x97:
case 0x98:
case 0x99:
case 0x9a:
case 0x9b:
case 0x9c:
case 0x9d:
case 0x9e:
case 0x9f:
return K054000_r(offset-0x80);
break;
case 0xca:
return sound_status_r(0);
break;
}
}
else if (offset < 0x1800)
return K053245_r((offset - 0x0800) & 0x07ff);
else if (offset < 0x2000)
return K056832_ram_code_lo_r(offset - 0x1800);
else if (offset < 0x2800)
return K056832_ram_code_hi_r(offset - 0x2000);
else if (offset < 0x3000)
return K056832_ram_attr_lo_r(offset - 0x2800);
else /* (offset < 0x3800) */
return K056832_ram_attr_hi_r(offset - 0x3000);
}
return 0;
}