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target-alpha: fix cmpbge instruction

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The cmpbge instruction should compare all 8 bytes of one 64-bit value with
another.  However, we were looping with a < 7 condition which was skipping
the top byte.  So if we were doing a compare where the top byte was
important, we could get the wrong result (this notably breaks the strlen()
function with certain sized strings).

(Vince Weaver)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5667 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aurel32 2008-11-10 11:10:14 +00:00
parent e441570f8a
commit 970d622e8a
1 changed files with 1 additions and 1 deletions
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target-alpha/op_helper.c
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@ -330,7 +330,7 @@ uint64_t helper_cmpbge (uint64_t op1, uint64_t op2)
int i;
res = 0;
for (i = 0; i < 7; i++) {
for (i = 0; i < 8; i++) {
opa = op1 >> (i * 8);
opb = op2 >> (i * 8);
if (opa >= opb)