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m68k: replaced fpc_longword_to_double function with a working and branchless version. fixes tcnvint4 test among others with FPU enabled.

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git-svn-id: trunk@36503 -
This commit is contained in:
Károly Balogh 2017-06-15 02:22:49 +00:00
parent d4d7778e86
commit a635f435b9
1 changed files with 2 additions and 14 deletions

16
rtl/m68k/math.inc
View File

@ -14,20 +14,8 @@
{$ifdef FPC_INCLUDE_SOFTWARE_LONGWORD_TO_DOUBLE}
function fpc_longword_to_double(i: longword): double; compilerproc;
var
l : longint;
begin
{$ifopt R+}
{$define HAS_OPTR}
{$endif}
{$r-}
l:=longint(i);
{$ifdef HAS_OPTR}
{$r+}
{$endif}
if l>=0 then
fpc_longword_to_double:=double(l)
else
fpc_longword_to_double:=-double(abs(l));
qword(result):=(qword(1075) shl 52) + i;
result:=result - (qword(1) shl 52);
end;
{$endif FPC_INCLUDE_SOFTWARE_LONGWORD_TO_DOUBLE}