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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
commit127cd08d4d8a7ebbd5e0cbe8239fa17c8dc9b20e (patch)
treeee4db1c2bfd942142669ab820a39f8417d0a0d9d /src/mame/drivers/cclimber.cpp
parent86d25d4d8dae418ef39b132e9f80cc9f781b96e1 (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/cclimber.cpp')
-rw-r--r--src/mame/drivers/cclimber.cpp8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/mame/drivers/cclimber.cpp b/src/mame/drivers/cclimber.cpp
index 78a6100862a..c5f6d1afd97 100644
--- a/src/mame/drivers/cclimber.cpp
+++ b/src/mame/drivers/cclimber.cpp
@@ -330,10 +330,10 @@ static ADDRESS_MAP_START( cclimber_map, AS_PROGRAM, 8, cclimber_state )
AM_RANGE(0x9000, 0x93ff) AM_MIRROR(0x0400) AM_RAM AM_SHARE("videoram")
/* 9800-9bff and 9c00-9fff share the same RAM, interleaved */
/* (9800-981f for scroll, 9c20-9c3f for color RAM, and so on) */
+ AM_RANGE(0x9800, 0x9bff) AM_RAM /* not used, but initialized */
AM_RANGE(0x9800, 0x981f) AM_RAM AM_SHARE("column_scroll")
AM_RANGE(0x9880, 0x989f) AM_RAM AM_SHARE("spriteram")
AM_RANGE(0x98dc, 0x98df) AM_RAM AM_SHARE("bigspritectrl")
- AM_RANGE(0x9800, 0x9bff) AM_RAM /* not used, but initialized */
AM_RANGE(0x9c00, 0x9fff) AM_RAM_WRITE(cclimber_colorram_w) AM_SHARE("colorram")
AM_RANGE(0xa000, 0xa007) AM_DEVWRITE("mainlatch", ls259_device, write_d0)
AM_RANGE(0xa000, 0xa000) AM_READ_PORT("P1")
@@ -356,10 +356,10 @@ static ADDRESS_MAP_START( cannonb_map, AS_PROGRAM, 8, cclimber_state )
AM_RANGE(0x9000, 0x93ff) AM_MIRROR(0x0400) AM_RAM AM_SHARE("videoram")
/* 9800-9bff and 9c00-9fff share the same RAM, interleaved */
/* (9800-981f for scroll, 9c20-9c3f for color RAM, and so on) */
+ AM_RANGE(0x9800, 0x9bff) AM_RAM /* not used, but initialized */
AM_RANGE(0x9800, 0x981f) AM_RAM AM_SHARE("column_scroll")
AM_RANGE(0x9880, 0x989f) AM_RAM AM_SHARE("spriteram")
AM_RANGE(0x98dc, 0x98df) AM_RAM AM_SHARE("bigspritectrl")
- AM_RANGE(0x9800, 0x9bff) AM_RAM /* not used, but initialized */
AM_RANGE(0x9c00, 0x9fff) AM_RAM_WRITE(cclimber_colorram_w) AM_SHARE("colorram")
AM_RANGE(0xa000, 0xa007) AM_DEVWRITE("mainlatch", ls259_device, write_d0)
AM_RANGE(0xa000, 0xa000) AM_READ_PORT("P1")
@@ -400,10 +400,10 @@ static ADDRESS_MAP_START( yamato_map, AS_PROGRAM, 8, cclimber_state )
AM_RANGE(0x9000, 0x93ff) AM_MIRROR(0x0400) AM_RAM AM_SHARE("videoram")
/* 9800-9bff and 9c00-9fff share the same RAM, interleaved */
/* (9800-981f for scroll, 9c20-9c3f for color RAM, and so on) */
+ AM_RANGE(0x9800, 0x9bff) AM_RAM /* not used, but initialized */
AM_RANGE(0x9800, 0x981f) AM_RAM AM_SHARE("column_scroll")
AM_RANGE(0x9880, 0x989f) AM_RAM AM_SHARE("spriteram")
AM_RANGE(0x98dc, 0x98df) AM_RAM AM_SHARE("bigspritectrl")
- AM_RANGE(0x9800, 0x9bff) AM_RAM /* not used, but initialized */
AM_RANGE(0x9c00, 0x9fff) AM_RAM_WRITE(cclimber_colorram_w) AM_SHARE("colorram")
AM_RANGE(0xa000, 0xa007) AM_DEVWRITE("mainlatch", ls259_device, write_d0)
AM_RANGE(0xa000, 0xa000) AM_READ_PORT("P1")
@@ -445,10 +445,10 @@ static ADDRESS_MAP_START( bagmanf_map, AS_PROGRAM, 8, cclimber_state )
AM_RANGE(0x8900, 0x8bff) AM_RAM /* not used, but initialized */
AM_RANGE(0x9000, 0x93ff) AM_RAM AM_SHARE("videoram")
AM_RANGE(0xffe0, 0xffff) AM_RAM AM_SHARE("column_scroll") // wrong, is this area even connected?
+ AM_RANGE(0x9800, 0x9bff) AM_RAM AM_SHARE("colorram")
AM_RANGE(0x9800, 0x9800) AM_READ_PORT("SYSTEM")
AM_RANGE(0x9800, 0x981f) AM_RAM AM_SHARE("spriteram")
AM_RANGE(0x98dc, 0x98df) AM_RAM AM_SHARE("bigspritectrl") // wrong
- AM_RANGE(0x9800, 0x9bff) AM_RAM AM_SHARE("colorram")
AM_RANGE(0x9c00, 0x9fff) AM_RAM /* not used, but initialized */
AM_RANGE(0xa000, 0xa000) AM_READ(bagmanf_a000_r)
AM_RANGE(0xa000, 0xa007) AM_DEVWRITE("mainlatch", ls259_device, write_d0)