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Diffstat (limited to 'src/devices/bus/c64/westermann.cpp')
-rw-r--r--src/devices/bus/c64/westermann.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/devices/bus/c64/westermann.cpp b/src/devices/bus/c64/westermann.cpp
index 33b22c06942..57a752c8fe2 100644
--- a/src/devices/bus/c64/westermann.cpp
+++ b/src/devices/bus/c64/westermann.cpp
@@ -61,17 +61,17 @@ uint8_t c64_westermann_cartridge_device::c64_cd_r(offs_t offset, uint8_t data, i
{
if (!roml)
{
- data = m_roml[offset];
+ data = m_roml[offset & (m_roml_size - 1)];
}
else if (!romh)
{
if (m_romh)
{
- data = m_romh[offset];
+ data = m_romh[offset & (m_romh_size - 1)];
}
else
{
- data = m_roml[offset];
+ data = m_roml[offset & (m_roml_size - 1)];
}
}
else if (!io2)