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/segaufo.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/segaufo.cpp')
-rw-r--r-- | src/mame/drivers/segaufo.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/segaufo.cpp b/src/mame/drivers/segaufo.cpp index 5906197f2de..6f477f63f44 100644 --- a/src/mame/drivers/segaufo.cpp +++ b/src/mame/drivers/segaufo.cpp @@ -465,18 +465,18 @@ ADDRESS_MAP_END static ADDRESS_MAP_START( ex_ufo21_portmap, AS_IO, 8, ufo_state ) + AM_IMPORT_FROM( ufo_portmap ) AM_RANGE(0x20, 0x20) AM_DEVWRITE("upd", upd7759_device, port_w) AM_RANGE(0x60, 0x60) AM_WRITE(ex_upd_start_w) AM_READNOP AM_RANGE(0x61, 0x61) AM_READ(ex_upd_busy_r) AM_RANGE(0x64, 0x65) AM_WRITE(ex_ufo21_lamps_w) AM_READNOP // AM_RANGE(0x68, 0x68) AM_WRITENOP // ? - AM_IMPORT_FROM( ufo_portmap ) ADDRESS_MAP_END static ADDRESS_MAP_START( ex_ufo800_portmap, AS_IO, 8, ufo_state ) + AM_IMPORT_FROM( ufo_portmap ) // AM_RANGE(0x60, 0x67) AM_NOP // unused? // AM_RANGE(0x68, 0x68) AM_WRITENOP // ? - AM_IMPORT_FROM( ufo_portmap ) ADDRESS_MAP_END |