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author Vas Crabb <vas@vastheman.com>2015-12-07 23:18:59 +1100
committer Vas Crabb <vas@vastheman.com>2015-12-11 23:34:36 +1100
commit18966159a0ad63083bcdb28869bdbf10d140e6d5 (patch)
tree35e3868ea9f9c24558797f1c8e8595dc3d8bfaac /src
parent25182815216b78058c8efb88f6471b0cda2641e9 (diff)
Use AM_MIRROR (nt)
Diffstat (limited to 'src')
-rw-r--r--src/mame/drivers/osborne1.cpp2
-rw-r--r--src/mame/machine/osborne1.cpp2
2 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/drivers/osborne1.cpp b/src/mame/drivers/osborne1.cpp
index 19074acc235..43bdd2417d3 100644
--- a/src/mame/drivers/osborne1.cpp
+++ b/src/mame/drivers/osborne1.cpp
@@ -92,7 +92,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( osborne1_io, AS_IO, 8, osborne1_state )
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff)
- AM_RANGE( 0x00, 0xff ) AM_WRITE(bankswitch_w)
+ AM_RANGE( 0x00, 0x03 ) AM_MIRROR( 0xfc ) AM_WRITE(bankswitch_w)
ADDRESS_MAP_END
diff --git a/src/mame/machine/osborne1.cpp b/src/mame/machine/osborne1.cpp
index 4d7856e8eb2..638e40a8445 100644
--- a/src/mame/machine/osborne1.cpp
+++ b/src/mame/machine/osborne1.cpp
@@ -118,7 +118,7 @@ READ8_MEMBER( osborne1_state::opcode_r )
WRITE8_MEMBER( osborne1_state::bankswitch_w )
{
- switch (offset & 0x03)
+ switch (offset)
{
case 0x00:
if (set_rom_mode(1))