PPC: Fix range check for scaled immediates in DynASM.

1 files changed, 4 insertions, 1 deletions

diff --git a/dynasm/dasm_ppc.h b/dynasm/dasm_ppc.h
index e928ffed..1c8580fb 100644
--- a/dynasm/dasm_ppc.h
+++ b/dynasm/dasm_ppc.h
@@ -233,6 +233,9 @@ void dasm_put(Dst_DECL, int start, ...)
       case DASM_IMM:
 #ifdef DASM_CHECKS
         CK((n & ((1<<((ins>>10)&31))-1)) == 0, RANGE_I);
+#endif
+        n >>= ((ins>>10)&31);
+#ifdef DASM_CHECKS
         if (ins & 0x8000)
           CK(((n + (1<<(((ins>>5)&31)-1)))>>((ins>>5)&31)) == 0, RANGE_I);
         else
@@ -360,7 +363,7 @@ int dasm_encode(Dst_DECL, void *buffer)
           break;
         case DASM_LABEL_PC: break;
         case DASM_IMM:
-          cp[-1] |= ((n>>((ins>>10)&31)) & ((1<<((ins>>5)&31))-1)) << (ins&31);
+          cp[-1] |= (n & ((1<<((ins>>5)&31))-1)) << (ins&31);
           break;
         default: *cp++ = ins; break;
         }