------------------------------------------------------------------------------ -- -- -- GNAT COMPILER COMPONENTS -- -- -- -- I N T E R F A C E S -- -- -- -- S p e c -- -- -- -- -- -- This specification is adapted from the Ada Reference Manual for use with -- -- GNAT. In accordance with the copyright of that document, you can freely -- -- copy and modify this specification, provided that if you redistribute a -- -- modified version, any changes that you have made are clearly indicated. -- -- -- ------------------------------------------------------------------------------ -- This is the OpenVMS version of this package which adds Float_Representation -- pragmas to the IEEE floating point types to enusre they remain IEEE in -- thse presence of a VAX_Float Float_Representatin configuration pragma. -- It assumes integer sizes of 8, 16, 32 and 64 are available, and that IEEE -- floating-point formats are available. package Interfaces is pragma Pure (Interfaces); type Integer_8 is range -2 ** 7 .. 2 ** 7 - 1; for Integer_8'Size use 8; type Integer_16 is range -2 ** 15 .. 2 ** 15 - 1; for Integer_16'Size use 16; type Integer_32 is range -2 ** 31 .. 2 ** 31 - 1; for Integer_32'Size use 32; type Integer_64 is range -2 ** 63 .. 2 ** 63 - 1; for Integer_64'Size use 64; type Unsigned_8 is mod 2 ** 8; for Unsigned_8'Size use 8; type Unsigned_16 is mod 2 ** 16; for Unsigned_16'Size use 16; type Unsigned_32 is mod 2 ** 32; for Unsigned_32'Size use 32; type Unsigned_64 is mod 2 ** 64; for Unsigned_64'Size use 64; function Shift_Left (Value : Unsigned_8; Amount : Natural) return Unsigned_8; function Shift_Right (Value : Unsigned_8; Amount : Natural) return Unsigned_8; function Shift_Right_Arithmetic (Value : Unsigned_8; Amount : Natural) return Unsigned_8; function Rotate_Left (Value : Unsigned_8; Amount : Natural) return Unsigned_8; function Rotate_Right (Value : Unsigned_8; Amount : Natural) return Unsigned_8; function Shift_Left (Value : Unsigned_16; Amount : Natural) return Unsigned_16; function Shift_Right (Value : Unsigned_16; Amount : Natural) return Unsigned_16; function Shift_Right_Arithmetic (Value : Unsigned_16; Amount : Natural) return Unsigned_16; function Rotate_Left (Value : Unsigned_16; Amount : Natural) return Unsigned_16; function Rotate_Right (Value : Unsigned_16; Amount : Natural) return Unsigned_16; function Shift_Left (Value : Unsigned_32; Amount : Natural) return Unsigned_32; function Shift_Right (Value : Unsigned_32; Amount : Natural) return Unsigned_32; function Shift_Right_Arithmetic (Value : Unsigned_32; Amount : Natural) return Unsigned_32; function Rotate_Left (Value : Unsigned_32; Amount : Natural) return Unsigned_32; function Rotate_Right (Value : Unsigned_32; Amount : Natural) return Unsigned_32; function Shift_Left (Value : Unsigned_64; Amount : Natural) return Unsigned_64; function Shift_Right (Value : Unsigned_64; Amount : Natural) return Unsigned_64; function Shift_Right_Arithmetic (Value : Unsigned_64; Amount : Natural) return Unsigned_64; function Rotate_Left (Value : Unsigned_64; Amount : Natural) return Unsigned_64; function Rotate_Right (Value : Unsigned_64; Amount : Natural) return Unsigned_64; pragma Import (Intrinsic, Shift_Left); pragma Import (Intrinsic, Shift_Right); pragma Import (Intrinsic, Shift_Right_Arithmetic); pragma Import (Intrinsic, Rotate_Left); pragma Import (Intrinsic, Rotate_Right); -- Floating point types. We use the digits value to define the IEEE -- forms, otherwise a configuration pragma specifying VAX float can -- default the digits to an illegal value for IEEE. -- Note: it is harmless, and explicitly permitted, to include additional -- types in interfaces, so it is not wrong to have IEEE_Extended_Float -- defined even if the extended format is not available. type IEEE_Float_32 is digits 6; pragma Float_Representation (IEEE_Float, IEEE_Float_32); type IEEE_Float_64 is digits 15; pragma Float_Representation (IEEE_Float, IEEE_Float_64); type IEEE_Extended_Float is digits 15; pragma Float_Representation (IEEE_Float, IEEE_Extended_Float); end Interfaces;