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[Qemu-trivial] [PATCH] Possible wrong microMIPS opcode encoding
From: |
Wei-Ren Chen |
Subject: |
[Qemu-trivial] [PATCH] Possible wrong microMIPS opcode encoding |
Date: |
Wed, 14 Nov 2012 10:49:55 +0800 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hi all,
While reading microMIPS decoding, I found a possible wrong opcode
encoding. According to [1] page 337, 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>
---
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 f6fc0c2..01b48fa 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -10385,7 +10385,7 @@ enum {
/* bits 13..12 for 0x32 */
MULT_ACC = 0x0,
- MULTU_ACC = 0x0,
+ MULTU_ACC = 0x1,
/* bits 15..12 for 0x2c */
SEB = 0x2,
--
1.7.12.3
- [Qemu-trivial] [PATCH] Possible wrong microMIPS opcode encoding,
Wei-Ren Chen <=