-- --
-- B o d y --
-- --
--- Copyright (C) 1997-2005, Free Software Foundation, Inc. --
+-- Copyright (C) 1997-2011, Free Software Foundation, Inc. --
-- (Version for Alpha OpenVMS) --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
--- ware Foundation; either version 2, or (at your option) any later ver- --
+-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
--- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
--- for more details. You should have received a copy of the GNU General --
--- Public License distributed with GNAT; see file COPYING. If not, write --
--- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
--- Boston, MA 02110-1301, USA. --
+-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
--- As a special exception, if other files instantiate generics from this --
--- unit, or you link this unit with other files to produce an executable, --
--- this unit does not by itself cause the resulting executable to be --
--- covered by the GNU General Public License. This exception does not --
--- however invalidate any other reasons why the executable file might be --
--- covered by the GNU Public License. --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-with System.IO; use System.IO;
+with System.IO;
with System.Machine_Code; use System.Machine_Code;
package body System.Vax_Float_Operations is
- -- Ensure this gets compiled with -O to avoid extra (and possibly
- -- improper) memory stores.
-
- pragma Optimize (Time);
-
-- Declare the functions that do the conversions between floating-point
-- formats. Call the operands IEEE float so they get passed in
-- FP registers.
procedure Debug_Output_D (Arg : D) is
begin
- Put (D'Image (Arg));
+ System.IO.Put (D'Image (Arg));
end Debug_Output_D;
--------------------
procedure Debug_Output_F (Arg : F) is
begin
- Put (F'Image (Arg));
+ System.IO.Put (F'Image (Arg));
end Debug_Output_F;
--------------------
procedure Debug_Output_G (Arg : G) is
begin
- Put (G'Image (Arg));
+ System.IO.Put (G'Image (Arg));
end Debug_Output_G;
--------------------
C : F;
begin
Asm ("ldf %0,%1", S'Asm_Output ("=f", A), F'Asm_Input ("m", X));
- Asm ("cpysn %1,%1,%0", S'Asm_Output ("=f", B), S'Asm_Input ("f", A));
+ Asm ("subf $f31,%1,%0", S'Asm_Output ("=f", B), S'Asm_Input ("f", A));
Asm ("stf %1,%0", F'Asm_Output ("=m", C), S'Asm_Input ("f", B));
return C;
end Neg_F;
C : G;
begin
Asm ("ldg %0,%1", T'Asm_Output ("=f", A), G'Asm_Input ("m", X));
- Asm ("cpysn %1,%1,%0", T'Asm_Output ("=f", B), T'Asm_Input ("f", A));
+ Asm ("subg $f31,%1,%0", T'Asm_Output ("=f", B), T'Asm_Input ("f", A));
Asm ("stg %1,%0", G'Asm_Output ("=m", C), T'Asm_Input ("f", B));
return C;
end Neg_G;
procedure pd (Arg : D) is
begin
- Put_Line (D'Image (Arg));
+ System.IO.Put_Line (D'Image (Arg));
end pd;
--------
procedure pf (Arg : F) is
begin
- Put_Line (F'Image (Arg));
+ System.IO.Put_Line (F'Image (Arg));
end pf;
--------
procedure pg (Arg : G) is
begin
- Put_Line (G'Image (Arg));
+ System.IO.Put_Line (G'Image (Arg));
end pg;
+ --------------
+ -- Return_D --
+ --------------
+
+ function Return_D (X : D) return D is
+ R : D;
+ begin
+ -- The return value is already in $f0 so we need to trick the compiler
+ -- into thinking that we're moving X to $f0.
+ Asm ("cvtdg $f0,$f0", Inputs => D'Asm_Input ("g", X), Clobber => "$f0",
+ Volatile => True);
+ Asm ("stg $f0,%0", D'Asm_Output ("=m", R), Volatile => True);
+ return R;
+ end Return_D;
+
+ --------------
+ -- Return_F --
+ --------------
+
+ function Return_F (X : F) return F is
+ R : F;
+ begin
+ -- The return value is already in $f0 so we need to trick the compiler
+ -- into thinking that we're moving X to $f0.
+ Asm ("stf $f0,%0", F'Asm_Output ("=m", R), F'Asm_Input ("g", X),
+ Clobber => "$f0", Volatile => True);
+ return R;
+ end Return_F;
+
+ --------------
+ -- Return_G --
+ --------------
+
+ function Return_G (X : G) return G is
+ R : G;
+ begin
+ -- The return value is already in $f0 so we need to trick the compiler
+ -- into thinking that we're moving X to $f0.
+ Asm ("stg $f0,%0", G'Asm_Output ("=m", R), G'Asm_Input ("g", X),
+ Clobber => "$f0", Volatile => True);
+ return R;
+ end Return_G;
+
-----------
-- Sub_F --
-----------
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