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Last change
on this file since 4642 was 4071, checked in by vboxsync, 17 years ago |
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Biggest check-in ever. New source code headers for all (C) innotek files.
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File size:
1.2 KB
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| 1 | ; $Id: $
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| 2 | ;; @file
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| 3 | ; innotek Portable Runtime - No-CRT fabsf - AMD64 & X86.
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| 4 | ;
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| 5 |
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| 6 | ;
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| 7 | ; Copyright (C) 2006-2007 innotek GmbH
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| 8 | ;
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| 9 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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| 10 | ; available from http://www.virtualbox.org. This file is free software;
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| 11 | ; you can redistribute it and/or modify it under the terms of the GNU
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| 12 | ; General Public License as published by the Free Software Foundation,
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| 13 | ; in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
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| 14 | ; distribution. VirtualBox OSE is distributed in the hope that it will
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| 15 | ; be useful, but WITHOUT ANY WARRANTY of any kind.
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| 16 |
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| 17 | %include "iprt/asmdefs.mac"
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| 18 |
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| 19 | BEGINCODE
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| 20 |
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| 21 | %ifdef RT_ARCH_AMD64
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| 22 | %define _SP rsp
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| 23 | %define _BP rbp
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| 24 | %define _S 8
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| 25 | %else
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| 26 | %define _SP esp
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| 27 | %define _BP ebp
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| 28 | %define _S 4
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| 29 | %endif
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| 30 |
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| 31 | ;;
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| 32 | ; Compute the absolute value of rf (|rf|).
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| 33 | ; @returns 32-bit: st(0) 64-bit: xmm0
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| 34 | ; @param rf 32-bit: [ebp + 8] 64-bit: xmm0
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| 35 | BEGINPROC RT_NOCRT(fabsf)
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| 36 | push _BP
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| 37 | mov _BP, _SP
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| 38 |
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| 39 | %ifdef RT_ARCH_AMD64
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| 40 | sub _SP, 10h
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| 41 |
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| 42 | movsd [_SP], xmm0
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| 43 | fld dword [_SP]
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| 44 |
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| 45 | fabs
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| 46 |
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| 47 | fstp dword [_SP]
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| 48 | movsd xmm0, [_SP]
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| 49 |
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| 50 | %else
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| 51 | fld dword [_BP + _S*2]
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| 52 | fabs
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| 53 | %endif
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| 54 |
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| 55 | leave
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| 56 | ret
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| 57 | ENDPROC RT_NOCRT(fabsf)
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| 58 |
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