From: pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Wed, 2 Jul 2008 16:44:09 +0000 (+0000)
Subject: ARMv7-M interrupt stack alignment fix.
X-Git-Tag: release_0_10_0~1863
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=ab19b0ecfddf94ae2053b973cea5a58c8dac0363;p=thirdparty%2Fqemu.git

ARMv7-M interrupt stack alignment fix.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4823 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 8e854352529..32c2c2e2821 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.  */