diff --git a/src/devices/oprom/yabel/biosemu.c b/src/devices/oprom/yabel/biosemu.c
index 8d7795971f..2a2ca312cb 100644
--- a/src/devices/oprom/yabel/biosemu.c
+++ b/src/devices/oprom/yabel/biosemu.c
@@ -44,6 +44,12 @@ static X86EMU_pioFuncs my_pio_funcs = {
 /* interrupt function override array (see biosemu.h) */
 yabel_handleIntFunc yabel_intFuncArray[256];
 
+void
+mainboard_interrupt_handlers(int interrupt, yabel_handleIntFunc func)
+{
+	yabel_intFuncArray[interrupt] = func;
+}
+
 /* main entry into YABEL biosemu, arguments are:
  * *biosmem = pointer to virtual memory
  * biosmem_size = size of the virtual memory
diff --git a/src/devices/oprom/yabel/biosemu.h b/src/devices/oprom/yabel/biosemu.h
index 39cc0a9b0e..4f5c4aaa5b 100644
--- a/src/devices/oprom/yabel/biosemu.h
+++ b/src/devices/oprom/yabel/biosemu.h
@@ -45,6 +45,7 @@
  * the function pointer is NULL */
 typedef int (* yabel_handleIntFunc)(void);
 extern yabel_handleIntFunc yabel_intFuncArray[256];
+void mainboard_interrupt_handlers(int, yabel_handleIntFunc);
 
 struct device;