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-rw-r--r--src/devices/cpu/v810/v810.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/cpu/v810/v810.cpp b/src/devices/cpu/v810/v810.cpp
index 19de0e7cfca..070048d6f55 100644
--- a/src/devices/cpu/v810/v810.cpp
+++ b/src/devices/cpu/v810/v810.cpp
@@ -1257,7 +1257,7 @@ void v810_device::device_start()
{
m_program = &space(AS_PROGRAM);
m_cache = m_program->cache<2, 0, ENDIANNESS_LITTLE>();
- m_io = &space(AS_IO);
+ m_io = has_space(AS_IO) ? &space(AS_IO) : m_program;
m_irq_line = 0;
m_irq_state = CLEAR_LINE;