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[Qemu-trivial] [PATCH v2] target-openrisc: bugfix for dec_sys to decode


From: David Morrison
Subject: [Qemu-trivial] [PATCH v2] target-openrisc: bugfix for dec_sys to decode instructions correctly
Date: Tue, 6 Jan 2015 09:06:18 -0800

Fixed the decoding of "system" instructions (starting with 0x2)
in dec_sys() in translate.c.  In particular, the l.trap instruction
is now correctly decoded, which enables for singlestepping and
breakpoints to be set in GDB.

Signed-off-by: David R. Morrison <address@hidden>
---
 target-openrisc/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Changes since previous version:
  * Added 'signed-off-by' line; sorry to forget this before!

diff --git a/target-openrisc/translate.c b/target-openrisc/translate.c
index 407bd97..d36278f 100644
--- a/target-openrisc/translate.c
+++ b/target-openrisc/translate.c
@@ -1320,7 +1320,7 @@ static void dec_sys(DisasContext *dc, uint32_t insn)
 #ifdef OPENRISC_DISAS
     uint32_t K16;
 #endif
-    op0 = extract32(insn, 16, 8);
+    op0 = extract32(insn, 16, 10);
 #ifdef OPENRISC_DISAS
     K16 = extract32(insn, 0, 16);
 #endif
-- 
2.2.1




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