diff --git a/src/fpu/fpu_instructions.h b/src/fpu/fpu_instructions.h
index 9a505a2b..06b97478 100644
--- a/src/fpu/fpu_instructions.h
+++ b/src/fpu/fpu_instructions.h
@@ -97,7 +97,7 @@ static Real64 FPU_FLD80(PhysPt addr) {
 	test.eind.l.lower = mem_readd(addr);
 	test.eind.l.upper = mem_readd(addr+4);
 	test.begin = mem_readw(addr+8);
-
+   
 	Bit64s exp64 = (((test.begin&0x7fff) - BIAS80));
 	Bit64s blah = ((exp64 >0)?exp64:-exp64)&0x3ff;
 	Bit64s exp64final = ((exp64 >0)?blah:-blah) +BIAS64;
@@ -106,6 +106,11 @@ static Real64 FPU_FLD80(PhysPt addr) {
 	Bit64s sign = (test.begin&0x8000)?1:0;
 	FPU_Reg result;
 	result.ll = (sign <<63)|(exp64final << 52)| mant64;
+
+	if(test.eind.l.lower == 0 && test.eind.l.upper == 0x80000000 && (test.begin&0x7fff) == 0x7fff) {
+		//Detect INF and -INF (score 3.11 when drawing a slur.)
+		result.d = sign?-HUGE_VAL:HUGE_VAL;
+	}
 	return result.d;
 
 	//mant64= test.mant80/2***64    * 2 **53