forked from KolibriOS/kolibrios
ace-dentandBurer
a4f3f3545a
- Move source code from `trunk` into root directory. - Update build files and ASM include paths. Add SPDX license header where appropriate. - These changes also update the CI build files in `.gitea/workflows/`. - Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden. (Work towards [#75](KolibriOS/kolibrios#75), point 3) --------- Co-authored-by: Burer <burer@kolibrios.org> Reviewed-on: KolibriOS/kolibrios#425 Reviewed-by: Mikhail Frolov <mixa.frolov2003@gmail.com> Reviewed-by: Burer <burer@kolibrios.org> Co-authored-by: Andrew <dent.ace@gmail.com> Co-committed-by: Andrew <dent.ace@gmail.com>
38 lines
393 B
ArmAsm
38 lines
393 B
ArmAsm
/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
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.data
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.align 2
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nan:
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.long 0xffffffff
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.byte 0xff
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.byte 0xff
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.byte 0xff
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.byte 0x7f
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.text
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.global atan2;
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atan2:
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fldl 4(%esp)
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fldl 12(%esp)
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ftst
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fnstsw %ax
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sahf
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jne doit
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fxch %st(1)
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ftst
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fnstsw %ax
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sahf
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je isanan
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fxch %st(1)
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doit:
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fpatan
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ret
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isanan:
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movl $1, __errno
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fstp %st(0)
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fstp %st(0)
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fldl nan
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ret
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