summaryrefslogtreecommitdiffstatshomepage
diff options
context:
space:
mode:
author Nigel Barnes <Pernod70@users.noreply.github.com>2019-04-22 17:34:03 +0100
committer Nigel Barnes <Pernod70@users.noreply.github.com>2019-04-22 17:34:03 +0100
commitc1f9701a39384745b071df3a4087088788052b01 (patch)
tree52e1123a39d477fc2030bac3cdcc50be273ec36f
parent95a30976caa80c86cc241dbb4b9a0ec8f8544c0a (diff)
sam6883: Mirror 32K RAM in 64K mode, prevents segfault when Dunjunz checks for 32/64K.
-rw-r--r--src/mame/machine/6883sam.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/mame/machine/6883sam.cpp b/src/mame/machine/6883sam.cpp
index 3f455fc3954..6c525eaea72 100644
--- a/src/mame/machine/6883sam.cpp
+++ b/src/mame/machine/6883sam.cpp
@@ -270,9 +270,9 @@ void sam6883_device::update_memory(void)
{
// full 64k RAM
m_space_0000.point(m_banks[0], 0x0000, m_banks[0].m_memory_size);
- m_space_8000.point(m_banks[0], 0x8000);
- m_space_A000.point(m_banks[0], 0xA000);
- m_space_C000.point(m_banks[0], 0xC000);
+ m_space_8000.point(m_banks[0], 0x8000 & (m_banks[0].m_memory_size - 1));
+ m_space_A000.point(m_banks[0], 0xA000 & (m_banks[0].m_memory_size - 1));
+ m_space_C000.point(m_banks[0], 0xC000 & (m_banks[0].m_memory_size - 1));
m_counter_mask = 0xFFFF;
setup_rom = false;
}