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Diffstat (limited to 'src/devices/video/nereid.cpp')
-rw-r--r--src/devices/video/nereid.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/devices/video/nereid.cpp b/src/devices/video/nereid.cpp
index fede953c277..c1c51c8ddbb 100644
--- a/src/devices/video/nereid.cpp
+++ b/src/devices/video/nereid.cpp
@@ -42,7 +42,7 @@ READ16_MEMBER(nereid_device::ctrl_r)
{
LOG("NEREID ctrl_r: %02X\n", offset);
- switch(offset) {
+ switch(offset & 0x7f) {
case NEREID_BUSY:
return 0;
case NEREID_RED_DATA:
@@ -67,7 +67,7 @@ WRITE16_MEMBER(nereid_device::ctrl_w)
{
LOG("NEREID: ctrl_w %02X = %02X\n", offset, data);
data &= 0xff;
- switch(offset) {
+ switch(offset & 0x7f) {
case NEREID_RED_DATA:
m_red = data;
break;