diff --git a/sae/cpu.js b/sae/cpu.js
index 456b9ae..bc39b74 100644
--- a/sae/cpu.js
+++ b/sae/cpu.js
@@ -1063,7 +1063,7 @@ function CPU() {
 			regs.pc = fault.pc;
 			return exception(5);
 		} else {
-			var quo = Math.floor(d / s);
+			var quo = ~~(d / s);
 
 			if (quo < 0) quo += 0x10000;
 
@@ -5253,4 +5253,4 @@ function CPU() {
 				cycle_spc(cpu_cycles);
 		}
 	}	
-}
\ No newline at end of file
+}