diff --git a/cpu/ppc/ppcopcodes.cpp b/cpu/ppc/ppcopcodes.cpp
index ee65dcd..2b4f64a 100644
--- a/cpu/ppc/ppcopcodes.cpp
+++ b/cpu/ppc/ppcopcodes.cpp
@@ -1262,7 +1262,7 @@ void dppc_interpreter::ppc_crandc() {
 }
 void dppc_interpreter::ppc_creqv() {
     ppc_grab_regsdab();
-    uint8_t ir = ~((ppc_state.cr >> (31 - reg_a)) ^ (ppc_state.cr >> (31 - reg_b)));
+    uint8_t ir = ~((ppc_state.cr & (31 - reg_a)) ^ (ppc_state.cr & (31 - reg_b)));
     if (ir & 1) {
         ppc_state.cr |= (0x80000000UL >> reg_d);
     } else {