projects / thirdparty / gcc.git / blame
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| 1eee94d3 GM |
1 | (* BlockOps.def provides a Logitech compatible module for block moves. |
| 2 | ||
| a945c346 | 3 | Copyright (C) 2005-2024 Free Software Foundation, Inc. |
| 1eee94d3 GM |
4 | Contributed by Gaius Mulley <gaius.mulley@southwales.ac.uk>. |
| 5 | ||
| 6 | This file is part of GNU Modula-2. | |
| 7 | ||
| 8 | GNU Modula-2 is free software; you can redistribute it and/or modify | |
| 9 | it under the terms of the GNU General Public License as published by | |
| 10 | the Free Software Foundation; either version 3, or (at your option) | |
| 11 | any later version. | |
| 12 | ||
| 13 | GNU Modula-2 is distributed in the hope that it will be useful, but | |
| 14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 16 | General Public License for more details. | |
| 17 | ||
| 18 | Under Section 7 of GPL version 3, you are granted additional | |
| 19 | permissions described in the GCC Runtime Library Exception, version | |
| 20 | 3.1, as published by the Free Software Foundation. | |
| 21 | ||
| 22 | You should have received a copy of the GNU General Public License and | |
| 23 | a copy of the GCC Runtime Library Exception along with this program; | |
| 24 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 25 | <http://www.gnu.org/licenses/>. *) | |
| 26 | ||
| 27 | DEFINITION MODULE BlockOps ; | |
| 28 | ||
| 29 | FROM SYSTEM IMPORT ADDRESS ; | |
| 30 | ||
| 31 | ||
| 32 | (* | |
| 33 | MoveBlockForward - moves, n, bytes from, src, to, dest. | |
| 34 | Starts copying from src and keep copying | |
| 35 | until, n, bytes have been copied. | |
| 36 | *) | |
| 37 | ||
| 38 | PROCEDURE BlockMoveForward (dest, src: ADDRESS; n: CARDINAL) ; | |
| 39 | ||
| 40 | ||
| 41 | (* | |
| 42 | MoveBlockBackward - moves, n, bytes from, src, to, dest. | |
| 43 | Starts copying from src+n and keeps copying | |
| 44 | until, n, bytes have been copied. | |
| 45 | The last datum to be copied will be the byte | |
| 46 | at address, src. | |
| 47 | *) | |
| 48 | ||
| 49 | PROCEDURE BlockMoveBackward (dest, src: ADDRESS; n: CARDINAL) ; | |
| 50 | ||
| 51 | ||
| 52 | (* | |
| 53 | BlockClear - fills, block..block+n-1, with zero's. | |
| 54 | *) | |
| 55 | ||
| 56 | PROCEDURE BlockClear (block: ADDRESS; n: CARDINAL) ; | |
| 57 | ||
| 58 | ||
| 59 | (* | |
| 60 | BlockSet - fills, n, bytes starting at, block, with a pattern | |
| 61 | defined at address pattern..pattern+patternSize-1. | |
| 62 | *) | |
| 63 | ||
| 64 | PROCEDURE BlockSet (block: ADDRESS; n: CARDINAL; | |
| 65 | pattern: ADDRESS; patternSize: CARDINAL) ; | |
| 66 | ||
| 67 | ||
| 68 | (* | |
| 69 | BlockEqual - returns TRUE if the blocks defined, a..a+n-1, and, | |
| 70 | b..b+n-1 contain the same bytes. | |
| 71 | *) | |
| 72 | ||
| 73 | PROCEDURE BlockEqual (a, b: ADDRESS; n: CARDINAL) : BOOLEAN ; | |
| 74 | ||
| 75 | ||
| 76 | (* | |
| 77 | BlockPosition - searches for a pattern as defined by | |
| 78 | pattern..patternSize-1 in the block, | |
| 79 | block..block+blockSize-1. It returns | |
| 80 | the offset from block indicating the | |
| 81 | first occurence of, pattern. | |
| 82 | MAX(CARDINAL) is returned if no match | |
| 83 | is detected. | |
| 84 | *) | |
| 85 | ||
| 86 | PROCEDURE BlockPosition (block: ADDRESS; blockSize: CARDINAL; | |
| 87 | pattern: ADDRESS; patternSize: CARDINAL) : CARDINAL ; | |
| 88 | ||
| 89 | ||
| 90 | END BlockOps. |