From: blueswir1 <blueswir1@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sat, 17 Nov 2007 08:19:57 +0000 (+0000)
Subject:  Fix MXCC error register (Robert Reif)
X-Git-Tag: release_0_9_1~235
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=bbf7d96b451ea3b6339520b974793f121cfd2c19;p=thirdparty%2Fqemu.git

 Fix MXCC error register (Robert Reif)


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3662 c046a42c-6fe2-441c-8c8c-71466251a162
---

diff --git a/target-sparc/op_helper.c b/target-sparc/op_helper.c
index 9409052f0d5..5eebd838882 100644
--- a/target-sparc/op_helper.c
+++ b/target-sparc/op_helper.c
@@ -446,13 +446,11 @@ void helper_st_asi(int asi, int size)
                 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
             break;
         case 0x01c00e00: /* MXCC error register  */
+            // writing a 1 bit clears the error
             if (size == 8)
-                env->mxccregs[6] = ((uint64_t)T1 << 32) | T2;
+                env->mxccregs[6] &= ~(((uint64_t)T1 << 32) | T2);
             else
                 DPRINTF_MXCC("%08x: unimplemented access size: %d\n", T0, size);
-            if (env->mxccregs[6] == 0xffffffffffffffffULL) {
-                // this is probably a reset
-            }
             break;
         case 0x01c00f00: /* MBus port address register */
             if (size == 8)