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[Qemu-devel] [PATCH] target-arm: Handle 'smc' as an undefined instructio


From: Adam Lackorzynski
Subject: [Qemu-devel] [PATCH] target-arm: Handle 'smc' as an undefined instruction
Date: Thu, 2 Sep 2010 23:40:50 +0200
User-agent: Mutt/1.5.20 (2009-06-14)

Handle smc as an undefined instruction instead of having it wrongly
interpreted as some other one.

Signed-off-by: Adam Lackorzynski <address@hidden>
---
 target-arm/translate.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/target-arm/translate.c b/target-arm/translate.c
index 6fcdd7e..c1d55ed 100644
--- a/target-arm/translate.c
+++ b/target-arm/translate.c
@@ -6346,7 +6346,12 @@ static void disas_arm_insn(CPUState * env, DisasContext 
*s)
             dead_tmp(tmp2);
             store_reg(s, rd, tmp);
             break;
-        case 7: /* bkpt */
+        case 7:
+            /* SMC? */
+            if ((insn & 0xfffffff0) == 0xe1600070) {
+                goto illegal_op;
+            }
+            /* bkpt */
             gen_set_condexec(s);
             gen_set_pc_im(s->pc - 4);
             gen_exception(EXCP_BKPT);
-- 
1.7.1



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