From: Aurelien Jarno <aurelien@aurel32.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [5723] target-mips: avoid tcg internal error in mfc0/dmfc0
Date: Sat, 15 Nov 2008 12:12:09 +0000 [thread overview]
Message-ID: <E1L1K0X-0003Ez-Lw@cvs.savannah.gnu.org> (raw)
Revision: 5723
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5723
Author: aurel32
Date: 2008-11-15 12:12:08 +0000 (Sat, 15 Nov 2008)
Log Message:
-----------
target-mips: avoid tcg internal error in mfc0/dmfc0
Set t0 to 0 for unimplemented mfc0/dmfc0 instructions. This fixes a tcg
internal error while booting mips linux.
Noticed by Julia Longtin.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Modified Paths:
--------------
trunk/target-mips/translate.c
Modified: trunk/target-mips/translate.c
===================================================================
--- trunk/target-mips/translate.c 2008-11-14 17:20:15 UTC (rev 5722)
+++ trunk/target-mips/translate.c 2008-11-15 12:12:08 UTC (rev 5723)
@@ -3186,7 +3186,7 @@
}
break;
case 22:
- /* ignored */
+ tcg_gen_movi_tl(t0, 0); /* unimplemented */
rn = "'Diagnostic"; /* implementation dependent */
break;
case 23:
@@ -3266,12 +3266,13 @@
}
break;
case 26:
- rn = "ECC";
- break;
+ tcg_gen_movi_tl(t0, 0); /* unimplemented */
+ rn = "ECC";
+ break;
case 27:
switch (sel) {
- /* ignored */
case 0 ... 3:
+ tcg_gen_movi_tl(t0, 0); /* unimplemented */
rn = "CacheErr";
break;
default:
@@ -4372,7 +4373,7 @@
}
break;
case 22:
- /* ignored */
+ tcg_gen_movi_tl(t0, 0); /* unimplemented */
rn = "'Diagnostic"; /* implementation dependent */
break;
case 23:
@@ -4451,12 +4452,14 @@
}
break;
case 26:
- rn = "ECC";
- break;
+ tcg_gen_movi_tl(t0, 0); /* unimplemented */
+ rn = "ECC";
+ break;
case 27:
switch (sel) {
/* ignored */
case 0 ... 3:
+ tcg_gen_movi_tl(t0, 0); /* unimplemented */
rn = "CacheErr";
break;
default:
@@ -8013,7 +8016,7 @@
case OPC_EMT:
check_insn(env, ctx, ASE_MT);
tcg_gen_helper_1_1(do_emt, t0, t0);
- break;
+ break;
case OPC_DVPE:
check_insn(env, ctx, ASE_MT);
tcg_gen_helper_1_1(do_dvpe, t0, t0);
reply other threads:[~2008-11-15 12:12 UTC|newest]
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