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authorAlex_Rozenman@mentor.com <Alex_Rozenman@mentor.com>2013-01-11 15:21:22 +0000
committerPeter Maydell <peter.maydell@linaro.org>2013-01-11 15:21:22 +0000
commit314e2296dc945e286b605563d7b6e6b269d29816 (patch)
tree04b83865b48e069e6aa1fd60c21c37362d8f4ea4 /target-arm
parent918fd0839eeafc83bd4984364321a947d29041fe (diff)
target-arm: Fix SWI (SVC) instruction in M profile.
When do_interrupt_v7m is called with EXCP_SWI, the PC already points to the next instruction. Don't modify it here. Signed-off-by: Alex Rozenman <Alex_Rozenman@mentor.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/helper.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/target-arm/helper.c b/target-arm/helper.c
index 0525aec87a..66ab78e3f1 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -1736,7 +1736,7 @@ static void do_interrupt_v7m(CPUARMState *env)
armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_USAGE);
return;
case EXCP_SWI:
- env->regs[15] += 2;
+ /* The PC already points to the next instruction. */
armv7m_nvic_set_pending(env->nvic, ARMV7M_EXCP_SVC);
return;
case EXCP_PREFETCH_ABORT: