82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/* *****************************************************************************
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* libg1m/format/std/mcs.h -- the G1M MCS file format description.
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* Copyright (C) 2017 Thomas "Cakeisalie5" Touhey <thomas@touhey.fr>
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*
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* This file is part of libg1m.
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* libg1m is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 3.0 of the License,
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* or (at your option) any later version.
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*
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* libg1m is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with libg1m; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************** */
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#ifndef LIBG1M_FORMAT_STD_MCS_H
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# define LIBG1M_FORMAT_STD_MCS_H
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# include <stdint.h>
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# pragma pack(1)
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/* MCS is the main filesystem on CASIO calculators. They contain settings,
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* programs, lists, pictures, captures, matrixes, and other data CASIO
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* calculators own.
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* Keep in mind that all numbers in the MCS format are BCD-encoded.
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* Because of some precision issue (0.3), we'll deliver them to the user
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* almost as is.
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*
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* MCS files have a group, a directory, a name and a type. This type depends
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* on the group it's in. So for example, the 0xFE type in the 'S-SHEET' group
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* will correspond to a spreadsheet! In an MCS G1M file, files are more or less
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* regrouped by their group (but sometimes they're not, there are several
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* 'PROGRAM' groups with one element for example).
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*
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* The `number` field in the Standard Header corresponds to the total number
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* of MCS files, not group instances!
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*
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* Each group instance have a header, and here it is: */
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struct mcs_subheader {
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/* group name (e.g. "PROGRAM", zero padded) */
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uint8_t intname[16];
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/* subitem count */
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uint32_t subcount;
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};
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/* Then follows the files, with their headers and contents.
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* And the header iiiiiiis: */
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struct mcs_fileheader {
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/* the directory name (zero-padded).*/
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uint8_t dirname[8];
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/* the file name (item name) */
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uint8_t filename[8];
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/* the file type. */
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uint8_t filetype;
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/* the size of the part data, without the part header. */
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uint32_t datalength;
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/* some alignment */
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uint8_t align[3];
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};
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# pragma pack()
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/* Beneath the file header, the file have different structures according to
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* their group name and MCS type. Pick your poison, once again! */
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# include <libg1m/format/mcs/list.h>
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# include <libg1m/format/mcs/matrix.h>
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# include <libg1m/format/mcs/picture.h>
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# include <libg1m/format/mcs/program.h>
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# include <libg1m/format/mcs/setup.h>
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# include <libg1m/format/mcs/spreadsheet.h>
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#endif /* LIBG1M_FORMAT_STD_MCS_H */
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