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-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 8e85435252..32c2c2e282 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -674,7 +674,7 @@ void do_interrupt_v7m(CPUARMState *env)
/* ??? Should only do this if Configuration Control Register
STACKALIGN bit is set. */
if (env->regs[13] & 4) {
- env->regs[13] += 4;
+ env->regs[13] -= 4;
xpsr |= 0x200;
}
/* Switch to the handler mode. */