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This commit is contained in:
Michaël Banaan Ananas 2014-01-08 21:26:22 +00:00
parent 57cfc0b411
commit 1e895ae4fb
1 changed files with 6 additions and 2 deletions
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8
src/mame/drivers/namcos22.c
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@ -1598,8 +1598,11 @@ READ16_MEMBER(namcos22_state::namcos22_keycus_r)
// It works in combination with keycus_w, but not yet understood how.
// printf("Hit keycus offs %x mask %x PC=%x\n", offset, mem_mask, space.device().safe_pc());
// protection (not used for all games)
// note: some games will XOR this register against a magic value, but that doesn't mean
// that the magic value is the keycus id. For example dirtdash XORs against $2c79, but its
// keycus id is $01a2 evident from a simple compare.
switch (m_gametype)
{
case NAMCOS22_RIDGE_RACER2:
@ -5622,7 +5625,8 @@ DRIVER_INIT_MEMBER(namcos22_state,propcycl)
{
UINT32 *ROM = (UINT32 *)memregion("maincpu")->base();
/* patch out strange routine (uninitialized-eprom related?) */
// patch out strange routine (uninitialized-eeprom related?)
// maybe needs more accurate 28C64 eeprom device emulation
ROM[0x1992C/4] = 0x4e754e75;
/**