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Use AM_MIRROR (nt)

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This commit is contained in:
Vas Crabb 2015-12-07 23:18:59 +11:00
parent 2518281521
commit 18966159a0
2 changed files with 2 additions and 2 deletions
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2
src/mame/drivers/osborne1.cpp
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@ -92,7 +92,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( osborne1_io, AS_IO, 8, osborne1_state ) static ADDRESS_MAP_START( osborne1_io, AS_IO, 8, osborne1_state )
ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xff) 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 ADDRESS_MAP_END

2
src/mame/machine/osborne1.cpp
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@ -118,7 +118,7 @@ READ8_MEMBER( osborne1_state::opcode_r )
WRITE8_MEMBER( osborne1_state::bankswitch_w ) WRITE8_MEMBER( osborne1_state::bankswitch_w )
{ {
switch (offset & 0x03) switch (offset)
{ {
case 0x00: case 0x00:
if (set_rom_mode(1)) if (set_rom_mode(1))