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[Qemu-devel] [PATCH 42/60] target-mips: fix wrong microMIPS opcode encod


From: Michael Tokarev
Subject: [Qemu-devel] [PATCH 42/60] target-mips: fix wrong microMIPS opcode encoding
Date: Mon, 4 Feb 2013 14:40:52 +0400

From: "陳韋任 (Wei-Ren Chen)" <address@hidden>

While reading microMIPS decoding, I found a possible wrong opcode
encoding. According to [1] page 166, the bits 13..12 for MULTU is
0x01 rather than 0x00. Please review, thanks.

[1] MIPS Architecture for Programmers VolumeIV-e: The MIPS DSP
    Application-Specific Extension to the microMIPS32 Architecture

Signed-off-by: Chen Wei-Ren <address@hidden>
Signed-off-by: Aurelien Jarno <address@hidden>
(cherry picked from commit 6801038bc52d61f81ac8a25fbe392f1bad982887)

Signed-off-by: Michael Tokarev <address@hidden>
---
 target-mips/translate.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target-mips/translate.c b/target-mips/translate.c
index 8ff1fab..6932c28 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -9463,7 +9463,7 @@ enum {
 
     /* bits 13..12 for 0x32 */
     MULT_ACC = 0x0,
-    MULTU_ACC = 0x0,
+    MULTU_ACC = 0x1,
 
     /* bits 15..12 for 0x2c */
     SEB = 0x2,
-- 
1.7.10.4




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