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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
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4 -- --
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5 -- S Y S T E M . V X W O R K S --
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6 -- --
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7 -- S p e c --
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8 -- --
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9 -- Copyright (C) 1998-2019, Free Software Foundation, Inc. --
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10 -- --
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11 -- GNARL is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
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17 -- --
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18 -- As a special exception under Section 7 of GPL version 3, you are granted --
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19 -- additional permissions described in the GCC Runtime Library Exception, --
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20 -- version 3.1, as published by the Free Software Foundation. --
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21 -- --
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22 -- You should have received a copy of the GNU General Public License and --
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23 -- a copy of the GCC Runtime Library Exception along with this program; --
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24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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25 -- <http://www.gnu.org/licenses/>. --
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26 -- --
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27 -- GNARL was developed by the GNARL team at Florida State University. --
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28 -- Extensive contributions were provided by Ada Core Technologies, Inc. --
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29 -- --
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30 ------------------------------------------------------------------------------
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31
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32 -- This is the x86 VxWorks version of this package
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33
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34 package System.VxWorks is
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35 pragma Preelaborate;
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36
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37 -- Floating point context record. x86 version
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38
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39 -- There are two kinds of FP_CONTEXT for this architecture, corresponding
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40 -- to newer and older processors. The type is defined in fppI86lib.h as a
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41 -- union. The form used depends on the versions of the save and restore
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42 -- routines that are selected by the user (these versions are provided in
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43 -- vxwork.ads). Since we do not examine the contents of these objects, it
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44 -- is sufficient to declare the type as of the required size: 512 bytes.
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45
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46 type FP_CONTEXT is array (1 .. 128) of Integer;
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47 for FP_CONTEXT'Alignment use 4;
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48 for FP_CONTEXT'Size use 512 * Storage_Unit;
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49 pragma Convention (C, FP_CONTEXT);
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50
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51 Num_HW_Interrupts : constant := 256;
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52 -- Number of entries in hardware interrupt vector table
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53
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54 end System.VxWorks;
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