Test A Possible Fix

[arcadez2003]

No description provided.

[amadvance]

Hi @arcadez2003
It fails with "memory_set_decrypted_region unable to find matching region 00000000-00000000 for CPU 0". I also tried setting some addresses in the memory_set_decrypted_region() calls, but without success.

[arcadez2003]

Im still waiting to hear back from grant but after a quick search of your github tree looking for
memory_set_decrypted_region i can see now this call would require to scan an address range span

let's use commando as an example...

memory_set_decrypted_region(0, 0x0000, 0xbfff, decrypt);

static ADDRESS_MAP_START( commando_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0xbfff) AM_ROM

Im not 100% on this but im thinking this is the address for Ms. PacMan Twin

static ADDRESS_MAP_START( mspactwin_readmem, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x1fff) AM_READ(MRA8_ROM)

memory_set_decrypted_region(0, 0x0000, 0x1fff, decrypt);