49d1a4c562
also start prefering NtDll API. so far: * NtQueryInformationFile * NtClose adds a performance workaround for windows unicode conversion. but that should probably be removed before merging
52 lines
1.4 KiB
ArmAsm
52 lines
1.4 KiB
ArmAsm
/**
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* This file has no copyright assigned and is placed in the Public Domain.
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* This file is part of the mingw-w64 runtime package.
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* No warranty is given; refer to the file DISCLAIMER.PD within this package.
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*/
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#include <_mingw_mac.h>
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.file "floorf.S"
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.text
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.p2align 4,,15
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.globl __MINGW_USYMBOL(floorf)
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.def __MINGW_USYMBOL(floorf); .scl 2; .type 32; .endef
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#ifdef __x86_64__
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.seh_proc __MINGW_USYMBOL(floorf)
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#endif
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__MINGW_USYMBOL(floorf):
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#if defined(_AMD64_) || defined(__x86_64__)
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subq $40, %rsp
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.seh_stackalloc 40
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.seh_endprologue
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unpcklps %xmm0, %xmm0
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cvtps2pd %xmm0, %xmm0
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call floor
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unpcklpd %xmm0, %xmm0
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cvtpd2ps %xmm0, %xmm0
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addq $40, %rsp
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ret
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.seh_endproc
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.def __MINGW_USYMBOL(floor); .scl 2; .type 32; .endef
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#elif defined(_X86_) || defined(__i386__)
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flds 4(%esp)
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subl $8,%esp
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fstcw 4(%esp) /* store fpu control word */
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/* We use here %edx although only the low 1 bits are defined.
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But none of the operations should care and they are faster
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than the 16 bit operations. */
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movl $0x400,%edx /* round towards -oo */
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orl 4(%esp),%edx
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andl $0xf7ff,%edx
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movl %edx,(%esp)
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fldcw (%esp) /* load modified control word */
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frndint /* round */
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fldcw 4(%esp) /* restore original control word */
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addl $8,%esp
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ret
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#endif
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