[Qemu-devel] [5171] fix alpha cmovxx instruction

[Aurelien Jarno]

Revision: 5171
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5171
Author:   aurel32
Date:     2008-09-05 19:07:53 +0000 (Fri, 05 Sep 2008)

Log Message:
-----------
fix alpha cmovxx instruction

The CMOV instruction is defined by the alpha manual as:

CMOVxx Ra.rq,Rb.rq,Rc.wq !Operate format
CMOVxx Ra.rq,#b.ib,Rc.wq !Operate format

Operation:
IF TEST(Rav, Condition_based_on_Opcode) THEN
Rc ?\226?\134?\144 Rbv

The current qemu behavior inverses Ra and Rb.  This is fixed by this
patch.

Signed-off-by: Tristan Gingold <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>

Modified Paths:
--------------
    trunk/target-alpha/translate.c

Modified: trunk/target-alpha/translate.c
===================================================================
--- trunk/target-alpha/translate.c      2008-09-05 17:17:55 UTC (rev 5170)
+++ trunk/target-alpha/translate.c      2008-09-05 19:07:53 UTC (rev 5171)
@@ -390,15 +390,15 @@
                                     int islit, int8_t lit)
 {
     if (ra != 31)
-        tcg_gen_mov_i64(cpu_T[1], cpu_ir[ra]);
+        tcg_gen_mov_i64(cpu_T[0], cpu_ir[ra]);
     else
-        tcg_gen_movi_i64(cpu_T[1], 0);
+        tcg_gen_movi_i64(cpu_T[0], 0);
     if (islit)
-        tcg_gen_movi_i64(cpu_T[0], lit);
+        tcg_gen_movi_i64(cpu_T[1], lit);
     else if (rb != 31)
-        tcg_gen_mov_i64(cpu_T[0], cpu_ir[rb]);
+        tcg_gen_mov_i64(cpu_T[1], cpu_ir[rb]);
     else
-        tcg_gen_movi_i64(cpu_T[0], 0);
+        tcg_gen_movi_i64(cpu_T[1], 0);
     (*gen_test_op)();
     gen_op_cmov_ir(rc);
 }