mirror of git://sourceware.org/git/glibc.git
35 lines
717 B
ArmAsm
35 lines
717 B
ArmAsm
/*
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* Public domain.
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*/
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#include <libm-alias-ldouble.h>
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#include <machine/asm.h>
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ENTRY(__ceill)
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fldt 8(%rsp)
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fnstenv -28(%rsp) /* store fpu environment */
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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 $0x0800,%edx /* round towards +oo */
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orl -28(%rsp),%edx
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andl $0xfbff,%edx
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movl %edx,-32(%rsp)
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fldcw -32(%rsp) /* load modified control word */
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frndint /* round */
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/* Preserve "invalid" exceptions from sNaN input. */
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fnstsw
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andl $0x1, %eax
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orl %eax, -24(%rsp)
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fldenv -28(%rsp) /* restore original environment */
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ret
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END (__ceill)
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libm_alias_ldouble (__ceil, ceil)
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