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-rw-r--r--src/devices/bus/interpro/sr/edge.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/devices/bus/interpro/sr/edge.cpp b/src/devices/bus/interpro/sr/edge.cpp
index 73f40e92374..7b5dc82d95f 100644
--- a/src/devices/bus/interpro/sr/edge.cpp
+++ b/src/devices/bus/interpro/sr/edge.cpp
@@ -896,7 +896,8 @@ void edge2plus_processor_device_base::kernel_w(offs_t offset, u32 data, u32 mem_
u32 edge2plus_processor_device_base::reg0_r()
{
- LOG("reg0_r vblank %d\n", m_screen->vblank());
+ if (m_screen)
+ LOG("reg0_r vblank %d\n", m_screen->vblank());
return (m_screen == nullptr) ? (m_reg0 & ~VBLANK) : ((m_reg0 & ~VBLANK) | (m_screen->vblank() ? VBLANK : 0));
}