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-rw-r--r--src/emu/cpu/amis2000/amis2000.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/emu/cpu/amis2000/amis2000.h b/src/emu/cpu/amis2000/amis2000.h
index 4e0c9ff521c..e55248e809e 100644
--- a/src/emu/cpu/amis2000/amis2000.h
+++ b/src/emu/cpu/amis2000/amis2000.h
@@ -51,6 +51,8 @@ protected:
virtual void device_reset();
// device_execute_interface overrides
+ virtual UINT64 execute_clocks_to_cycles(UINT64 clocks) const { return (clocks + 4 - 1) / 4; } // 4 cycles per machine cycle
+ virtual UINT64 execute_cycles_to_clocks(UINT64 cycles) const { return (cycles * 4); } // "
virtual UINT32 execute_min_cycles() const { return 1; }
virtual UINT32 execute_max_cycles() const { return 2; }
virtual UINT32 execute_input_lines() const { return 1; }