target-mips: fix DINSU instruction

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

diff --git a/target-mips/translate.c b/target-mips/translate.c
index 8531d6cc12361f6152d2c76118d7c185db91d179..804b6e4bc46bfdba8219d575beb589b960d867e3 100644 (file)
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -2764,7 +2764,7 @@ static void gen_bitops (DisasContext *ctx, uint32_t opc, int rt,
     case OPC_DINSU:
         if (lsb > msb)
             goto fail;
-        mask = ((1ULL << (msb - lsb + 1)) - 1) << lsb;
+        mask = ((1ULL << (msb - lsb + 1)) - 1) << (lsb + 32);
         gen_load_gpr(t0, rt);
         tcg_gen_andi_tl(t0, t0, ~mask);
         tcg_gen_shli_tl(t1, t1, lsb + 32);