diff options
author | Olivier Galibert <galibert@pobox.com> | 2018-01-18 19:41:45 +0100 |
---|---|---|
committer | Olivier Galibert <galibert@pobox.com> | 2018-01-31 22:03:00 +0100 |
commit | 127cd08d4d8a7ebbd5e0cbe8239fa17c8dc9b20e (patch) | |
tree | ee4db1c2bfd942142669ab820a39f8417d0a0d9d /src/mame/drivers/pgm2.cpp | |
parent | 86d25d4d8dae418ef39b132e9f80cc9f781b96e1 (diff) |
API change: Memory maps are now "last entry wins" [O. Galibert]
This allows for the much more natural "import another map and patch
it" structure, or "cover a whole region then punch holes in it". Our
previous first-entry-wins rule was always a surprise to newcomers, and
oldcomers too.
Diffstat (limited to 'src/mame/drivers/pgm2.cpp')
-rw-r--r-- | src/mame/drivers/pgm2.cpp | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mame/drivers/pgm2.cpp b/src/mame/drivers/pgm2.cpp index b54c55e0eec..bf4cc0b9cb7 100644 --- a/src/mame/drivers/pgm2.cpp +++ b/src/mame/drivers/pgm2.cpp @@ -577,23 +577,23 @@ ADDRESS_MAP_END static ADDRESS_MAP_START( pgm2_rom_map, AS_PROGRAM, 32, pgm2_state ) - AM_RANGE(0x10000000, 0x10ffffff) AM_ROM AM_REGION("user1", 0) // external ROM AM_IMPORT_FROM(pgm2_map) + AM_RANGE(0x10000000, 0x10ffffff) AM_ROM AM_REGION("user1", 0) // external ROM ADDRESS_MAP_END static ADDRESS_MAP_START( pgm2_ram_rom_map, AS_PROGRAM, 32, pgm2_state ) + AM_IMPORT_FROM(pgm2_map) AM_RANGE(0x10000000, 0x101fffff) AM_RAM AM_SHARE("romboard_ram") // we should also probably decrypt writes once the encryption is enabled, but the game never writes with it turned on anyway AM_RANGE(0x10200000, 0x103fffff) AM_ROM AM_REGION("user1", 0) // external ROM - AM_IMPORT_FROM(pgm2_map) ADDRESS_MAP_END static ADDRESS_MAP_START( pgm2_module_rom_map, AS_PROGRAM, 32, pgm2_state ) + AM_IMPORT_FROM(pgm2_rom_map) AM_RANGE(0x10000000, 0x107fffff) AM_WRITE16(module_rom_w, 0xffffffff) AM_RANGE(0x10000000, 0x1000000f) AM_READ16(module_rom_r, 0xffffffff) AM_RANGE(0xfffff430, 0xfffff433) AM_WRITE(pio_sodr_w) AM_RANGE(0xfffff434, 0xfffff437) AM_WRITE(pio_codr_w) AM_RANGE(0xfffff43c, 0xfffff43f) AM_READ(pio_pdsr_r) - AM_IMPORT_FROM(pgm2_rom_map) ADDRESS_MAP_END static INPUT_PORTS_START( pgm2 ) |