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where things map, we might be missing a real bios (nw)

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This commit is contained in:
mamehaze 2014-12-05 13:23:04 +00:00
parent 716fbc285c
commit ad547dff03
1 changed files with 7 additions and 4 deletions
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11
src/mess/drivers/leapster.c
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@ -248,7 +248,7 @@ DEVICE_IMAGE_LOAD_MEMBER( leapster_state, leapster_cart )
{
UINT32 size = m_cart->common_get_size("rom");
m_cart->rom_alloc(size, GENERIC_ROM8_WIDTH, ENDIANNESS_LITTLE);
m_cart->rom_alloc(size, GENERIC_ROM32_WIDTH, ENDIANNESS_LITTLE);
m_cart->common_load_rom(m_cart->get_rom_base(), size, "rom");
return IMAGE_INIT_PASS;
@ -258,6 +258,7 @@ void leapster_state::machine_start()
{
astring region_tag;
m_cart_rom = memregion(region_tag.cpy(m_cart->tag()).cat(GENERIC_ROM_REGION_TAG));
membank("cartrom")->set_base(m_cart_rom->base());
}
void leapster_state::machine_reset()
@ -265,7 +266,9 @@ void leapster_state::machine_reset()
}
static ADDRESS_MAP_START( leapster_map, AS_PROGRAM, 32, leapster_state )
AM_RANGE(0x000000, 0x1fffff) AM_ROM
AM_RANGE(0x00000000, 0x001fffff) AM_ROM AM_MIRROR(0x40000000) // pointers in the bios region seem to be to the 40xxxxxx region, either we mirror there or something (real bios?) is acutally missing
AM_RANGE(0x80000000, 0x807fffff) AM_ROMBANK("cartrom") // game ROM pointers are all to the 80xxxxxx region, so I assume it maps here
ADDRESS_MAP_END
static MACHINE_CONFIG_START( leapster, leapster_state )
@ -293,12 +296,12 @@ MACHINE_CONFIG_END
ROM_START(leapster)
ROM_REGION(0x200000, "maincpu", ROMREGION_ERASE00)
ROM_LOAD16_WORD_SWAP( "155-10072-a.bin", 0x00000, 0x200000, CRC(af05e5a0) SHA1(d4468d060543ba7e44785041093bc98bcd9afa07) )
ROM_LOAD( "155-10072-a.bin", 0x00000, 0x200000, CRC(af05e5a0) SHA1(d4468d060543ba7e44785041093bc98bcd9afa07) )
ROM_END
ROM_START(leapstertv)
ROM_REGION(0x200000, "maincpu", ROMREGION_ERASE00)
ROM_LOAD16_WORD_SWAP( "am29pl160cb-90sf.bin", 0x00000, 0x200000, BAD_DUMP CRC(dc281f1f) SHA1(17588de54ab3bb82801bd5062f3e6aa687412178) )
ROM_LOAD( "am29pl160cb-90sf.bin", 0x00000, 0x200000, BAD_DUMP CRC(dc281f1f) SHA1(17588de54ab3bb82801bd5062f3e6aa687412178) )
ROM_END