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- disabled the i8086 math.arctan2 asm code, because it doesn't work on the 8087/80287

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git-svn-id: trunk@26243 -
This commit is contained in:
nickysn 2013-12-16 23:05:16 +00:00
parent 2a0a8cfc00
commit f23c521c50
1 changed files with 8 additions and 3 deletions
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11
rtl/i8086/mathu.inc
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@ -13,14 +13,19 @@
**********************************************************************}
{$ASMMODE intel}
{$define FPC_MATH_HAS_ARCTAN2}
function arctan2(y,x : float) : float;assembler;
{NOTE: the fpatan instruction on the 8087 and 80287 has the following restrictions:
0 <= ST(1) < ST(0) < +inf
so the following code requires a 387+ and is therefore disabled, so that we use the
generic implementation, until an asm optimized version, compatible with 8087/80287 is written }
{//$define FPC_MATH_HAS_ARCTAN2}
{function arctan2(y,x : float) : float;assembler;
asm
fld tbyte [y]
fld tbyte [x]
fpatan
fwait
end;
end;}
{//$define FPC_MATH_HAS_SINCOS}