commit a06d48d91f1613878d0d3c57980451aac15e3f75
author Richard Henderson <rth@twiddle.net> Fri Dec 11 13:21:02 2009 -0800
committer Aurelien Jarno <aurelien@aurel32.net> Sun Dec 13 21:36:21 2009 +0100
tree 6bdc0aa71674685049706310c7d0d54db402c06c
parent 50eb6e5c04de14a5fb0dd99f99e165e1cb839460

target-alpha: Fix FMOV.

Properly handle move from the zero register.

Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

target-alpha/translate.c

diff --git a/target-alpha/translate.c b/target-alpha/translate.c
index 1c809b7..8a9aeb7 100644
--- a/target-alpha/translate.c
+++ b/target-alpha/translate.c
@@ -1834,12 +1834,16 @@
             break;
         case 0x020:
             if (likely(rc != 31)) {
-                if (ra == rb)
+                if (ra == rb) {
                     /* FMOV */
-                    tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]);
-                else
+                    if (ra == 31)
+                        tcg_gen_movi_i64(cpu_fir[rc], 0);
+                    else
+                        tcg_gen_mov_i64(cpu_fir[rc], cpu_fir[ra]);
+                } else {
                     /* CPYS */
                     gen_fcpys(ra, rb, rc);
+                }
             }
             break;
         case 0x021: