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[dxvk] Fix tzcnt return value when source value is 0

This commit is contained in:
Philip Rebohle 2018-07-09 13:31:34 +02:00
parent 2caf346fbb
commit 2aa6b04fd9
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GPG Key ID: C8CC613427A31C99
1 changed files with 2 additions and 2 deletions
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4
src/util/util_bit.h
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@ -29,8 +29,8 @@ namespace dxvk::bit {
uint32_t res;
uint32_t tmp;
asm (
"xor %1, %1;"
"bsf %2, %0;"
"mov $32, %1;"
"bsf %2, %0;"
"cmovz %1, %0;"
: "=&r" (res), "=&r" (tmp)
: "r" (n));