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author Firehawke <Firehawke@users.noreply.github.com>2017-12-13 21:31:27 -0700
committer Firehawke <Firehawke@users.noreply.github.com>2017-12-13 21:31:27 -0700
commit9ece34eb218c5c1960468294c733fd00ac7fa696 (patch)
tree7160ed8d2cbe2127aaaef0a21f8736403b0f8a7c /src/osd/eigccx86.h
parent54155441e9ba9941e85d80c4834a66376a11e791 (diff)
Revert "Revert "Merge branch 'master' of https://github.com/mamedev/mame""
This reverts commit 54155441e9ba9941e85d80c4834a66376a11e791.
Diffstat (limited to 'src/osd/eigccx86.h')
-rw-r--r--src/osd/eigccx86.h10
1 files changed, 4 insertions, 6 deletions
diff --git a/src/osd/eigccx86.h b/src/osd/eigccx86.h
index b67b646451e..b3831d21524 100644
--- a/src/osd/eigccx86.h
+++ b/src/osd/eigccx86.h
@@ -474,13 +474,12 @@ _count_leading_zeros(uint32_t value)
__asm__ (
" bsrl %[value], %[result] ;"
" cmovzl %[bias], %[result] ;"
- " xorl $31, %[result] ;"
: [result] "=&r" (result) // result can be in any register
: [value] "rm" (value) // 'value' can be register or memory
- , [bias] "rm" (uint32_t(63)) // 'bias' can be register or memory
+ , [bias] "rm" (~uint32_t(0)) // 'bias' can be register or memory
: "cc" // clobbers condition codes
);
- return result;
+ return 31U - result;
}
@@ -497,13 +496,12 @@ _count_leading_ones(uint32_t value)
__asm__ (
" bsrl %[value], %[result] ;"
" cmovzl %[bias], %[result] ;"
- " xorl $31, %[result] ;"
: [result] "=&r" (result) // result can be in any register
: [value] "rm" (~value) // 'value' can be register or memory
- , [bias] "rm" (uint32_t(63)) // 'bias' can be register or memory
+ , [bias] "rm" (~uint32_t(0)) // 'bias' can be register or memory
: "cc" // clobbers condition codes
);
- return result;
+ return 31U - result;
}
#endif // MAME_OSD_EIGCCX86_H