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-rw-r--r--src/osd/eivcx86.h71
1 files changed, 7 insertions, 64 deletions
diff --git a/src/osd/eivcx86.h b/src/osd/eivcx86.h
index 1f0e21312b7..f913ac94624 100644
--- a/src/osd/eivcx86.h
+++ b/src/osd/eivcx86.h
@@ -8,8 +8,10 @@
//
//============================================================
-#ifndef __EIVCX86__
-#define __EIVCX86__
+#ifndef MAME_OSD_EIVCX86_H
+#define MAME_OSD_EIVCX86_H
+
+#pragma once
#ifdef PTR64
#include <emmintrin.h>
@@ -393,71 +395,12 @@ static inline uint32_t _modu_64x32(uint64_t a, uint32_t b)
#define recip_approx _recip_approx
static inline float _recip_approx(float z)
{
- __m128 mz = _mm_set_ss(z);
- __m128 mooz = _mm_rcp_ss(mz);
+ __m128 const mz = _mm_set_ss(z);
+ __m128 const mooz = _mm_rcp_ss(mz);
float ooz;
_mm_store_ss(&ooz, mooz);
return ooz;
}
#endif
-
-
-/***************************************************************************
- INLINE BIT MANIPULATION FUNCTIONS
-***************************************************************************/
-
-/*-------------------------------------------------
- count_leading_zeros - return the number of
- leading zero bits in a 32-bit value
--------------------------------------------------*/
-
-#ifndef PTR64
-#define count_leading_zeros _count_leading_zeros
-static inline uint8_t _count_leading_zeros(uint32_t value)
-{
- int32_t result;
-
- __asm
- {
- bsr eax,value
- jnz skip
- mov eax,63
- skip:
- xor eax,31
- mov result,eax
- }
-
- return result;
-}
-#endif
-
-
-/*-------------------------------------------------
- count_leading_ones - return the number of
- leading one bits in a 32-bit value
--------------------------------------------------*/
-
-#ifndef PTR64
-#define count_leading_ones _count_leading_ones
-static inline uint8_t _count_leading_ones(uint32_t value)
-{
- int32_t result;
-
- __asm
- {
- mov eax,value
- not eax
- bsr eax,eax
- jnz skip
- mov eax,63
- skip:
- xor eax,31
- mov result,eax
- }
-
- return result;
-}
-#endif
-
-#endif /* __EIVCX86__ */
+#endif // MAME_OSD_EIVCX86_H