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Diffstat (limited to 'src/devices/machine/upd4701.cpp')
-rw-r--r--src/devices/machine/upd4701.cpp20
1 files changed, 20 insertions, 0 deletions
diff --git a/src/devices/machine/upd4701.cpp b/src/devices/machine/upd4701.cpp
index 3fdcbf726fb..0875ce31861 100644
--- a/src/devices/machine/upd4701.cpp
+++ b/src/devices/machine/upd4701.cpp
@@ -148,6 +148,16 @@ WRITE_LINE_MEMBER(upd4701_device::resety_w)
// reset_x - pulse the X counter reset line
//-------------------------------------------------
+READ8_MEMBER(upd4701_device::reset_x)
+{
+ if (!machine().side_effect_disabled())
+ {
+ resetx_w(1);
+ resetx_w(0);
+ }
+ return space.unmap();
+}
+
WRITE8_MEMBER(upd4701_device::reset_x)
{
resetx_w(1);
@@ -158,6 +168,16 @@ WRITE8_MEMBER(upd4701_device::reset_x)
// reset_y - pulse the Y counter reset line
//-------------------------------------------------
+READ8_MEMBER(upd4701_device::reset_y)
+{
+ if (!machine().side_effect_disabled())
+ {
+ resety_w(1);
+ resety_w(0);
+ }
+ return space.unmap();
+}
+
WRITE8_MEMBER(upd4701_device::reset_y)
{
resety_w(1);