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* Convert clongdouble from double <=> quadruple on non-x86.

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git-svn-id: trunk@8114 -
This commit is contained in:
daniel 2007-07-21 15:32:15 +00:00
parent c5ac7638ed
commit 4861c8b7ed
1 changed files with 39 additions and 3 deletions
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42
rtl/inc/ctypes.pp
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@ -76,7 +76,8 @@ type
{$ifdef windows}
clongdouble=double;
{$else}
{$define longdouble_assignment_overload}
{$ifdef x86}
{$define longdouble_assignment_overload_real80}
clongdouble = packed record
value:extended;
{$ifdef defined(cpu64) or defined(darwin)}
@ -85,6 +86,10 @@ type
padding:array[0..1] of byte;
{$endif}
end;
{$else}
{$define longdouble_assignment_overload_real128}
clongdouble = packed array [0..15] of byte;
{$endif}
{$endif}
Pclongdouble=^clongdouble;
@ -94,14 +99,20 @@ type
{$endif}
{$ifdef longdouble_assignment_overload}
{$ifdef longdouble_assignment_overload_real80}
operator := (const v:clongdouble):r:extended;
operator := (const v:extended):r:clongdouble;
{$endif}
{$ifdef longdouble_assignment_overload_real128}
{Non-x86 typically doesn't have extended. To be fixed once this changes.}
operator := (const v:clongdouble):r:double;
operator := (const v:double):r:clongdouble;
{$endif}
implementation
{$ifdef longdouble_assignment_overload}
{$ifdef longdouble_assignment_overload_real80}
operator := (const v:clongdouble):r:extended;inline;
begin
@ -115,4 +126,29 @@ begin
end;
{$endif}
{$ifdef longdouble_assignment_overload_real128}
{$ifdef ENDIAN_LITTLE}
const r128_mantissa_ofs=0;
r128_exponent_ofs=14;
{$else}
const r128_mantissa_ofs=2;
r128_exponent_ofs=0;
{$endif}
operator := (const v:clongdouble):r:double;inline;
begin
qword(r):=(qword(Pword(@v[r128_exponent_ofs])^) shl 52) or
(Pqword(@v[r128_mantissa_ofs])^ shr 12);
end;
operator := (const v:double):r:clongdouble;inline;
begin
Pword(@r[r128_exponent_ofs])^:=qword(v) shr 52;
Pqword(@r[r128_mantissa_ofs])^:=qword(v) shl 12;
end;
{$endif}
end.