diff -Nru old/src/mame/drivers/speglsht.c new/src/mame/drivers/speglsht.c
--- old/src/mame/drivers/speglsht.c	2010-01-28 13:14:18.000000000 +0100
+++ new/src/mame/drivers/speglsht.c	2010-02-07 15:01:44.000000000 +0100
@@ -104,6 +104,7 @@
 */
 
 #include "emu.h"
+#include "deprecat.h"
 #include "cpu/z80/z80.h"
 #include "cpu/mips/r3000.h"
 #include "sound/st0016.h"
@@ -301,9 +302,12 @@
 	&st0016_charram
 };
 
- static INTERRUPT_GEN( irq4_gen )
+static INTERRUPT_GEN( irq4_gen )
 {
-	cpu_set_input_line(device, R3000_IRQ4, ASSERT_LINE);
+	if(cpu_getiloops(device) == 0)
+		cpu_set_input_line(device, R3000_IRQ4, ASSERT_LINE);
+	else
+		cpu_set_input_line(device, R3000_IRQ4, CLEAR_LINE);
 }
 
 static const r3000_cpu_core config =
@@ -329,7 +333,8 @@
 	MDRV_CPU_ADD("sub", R3000LE, 25000000)
 	MDRV_CPU_CONFIG(config)
 	MDRV_CPU_PROGRAM_MAP(speglsht_mem)
-	MDRV_CPU_VBLANK_INT("screen", irq4_gen)
+	//256???K??
+	MDRV_CPU_VBLANK_INT_HACK(irq4_gen, 256)
 
 	MDRV_QUANTUM_TIME(HZ(6000))
 	MDRV_MACHINE_RESET(speglsht)