95 lines
3.0 KiB
C
95 lines
3.0 KiB
C
/* ****************************************************************************
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* libcasio/format/std/lang.h -- the standard language 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 libcasio.
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* libcasio 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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* libcasio 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 libcasio; if not, see <http://www.gnu.org/licenses/>.
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* ************************************************************************* */
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#ifndef LIBCASIO_FORMAT_STD_LANG_H
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# define LIBCASIO_FORMAT_STD_LANG_H
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# include "../../cdefs.h"
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# pragma pack(1)
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CASIO_BEGIN_NAMESPACE
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/* ---
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* G1L - Language files for fx calculators.
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* --- */
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/* It all starts with a header: */
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typedef struct casio_lang_subheader_s {
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/* identifier: is "PowerUSB" on original things */
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casio_uint8_t casio_lang_subheader_identifier[8];
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/* OS information (raw binary format), e.g. 0x02,0x09 for 2.09. */
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casio_uint8_t casio_lang_subheader_os_major;
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casio_uint8_t casio_lang_subheader_os_minor;
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/* unknown bytes */
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casio_uint8_t casio_lang_subheader__unknown[2];
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/* message count */
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casio_uint16_t casio_lang_subheader_count;
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} casio_lang_subheader_t;
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/* Then comes a list of offsets, and the messages.
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*
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* Each element of the offsets list is 16-bytes long.
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* It is relative to the first element (which starts right after the
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* offsets list - no alignment).
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*
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* The messages are null-terminated - once you get the offsets, you get
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* them completely. */
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/* ---
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* G3L - Language files for the Prizm.
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* --- */
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/* G3L and G3N start with the StandardHeader and the Standard Subheader,
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* then the Prizm-specific subheader. After this, both the G3L and G3N
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* have this language header: */
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typedef struct casio_prizm_lang_subheader_s {
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/* Sequence: '4C 59 37 35 35 00 00 00' (LY755 ) */
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casio_uint8_t casio_prizm_lang_subheader_sequence[8];
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/* Unknown: 0x02 */
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casio_uint8_t casio_prizm_lang_subheader__unknown;
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/* Unused byte. */
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casio_uint8_t casio_prizm_lang_subheader__unused0;
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/* Number of messages ("possibly 0 base indexed") */
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casio_uint32_t casio_prizm_lang_subheader_count;
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/* Unused bytes */
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casio_uint8_t casio_prizm_lang_subheader__unused1[2];
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} casio_prizm_lang_subheader_t;
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/* Then we have offsets of all messages (4 bytes each),
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* then messages themselves, zero-terminated.
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*
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* And don't forget the footer (see `libcasio/format/std.h`) */
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CASIO_END_NAMESPACE
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# pragma pack()
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#endif /* LIBCASIO_FORMAT_STD_LANG_H */
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