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Split off the CRC code to its own module.

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This commit is contained in:
OBattler
2025-02-15 07:09:14 +01:00
parent 4a93a939fb
commit c6dfd688f4
5 changed files with 143 additions and 57 deletions
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34
src/include/86box/crc.h Normal file
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@@ -0,0 +1,34 @@
/*
* 86Box A hypervisor and IBM PC system emulator that specializes in
* running old operating systems and software designed for IBM
* PC systems and compatibles from 1981 through fairly recent
* system designs based on the PCI bus.
*
* This file is part of the 86Box distribution.
*
* Definitions for the CRC code.
*
* Authors: Miran Grca, <mgrca8@gmail.com>
*
* Copyright 2016-2025 Miran Grca.
*/
#ifndef EMU_CRC_H
#define EMU_CRC_H
#ifdef __cplusplus
extern "C" {
#endif
typedef union {
uint16_t word;
uint8_t bytes[2];
} crc_t;
extern void crc16_setup(uint16_t *crc_table, uint16_t poly);
extern void crc16_calc(uint16_t *crc_table, uint8_t byte, crc_t *crc_var);
#ifdef __cplusplus
}
#endif
#endif /*EMU_CRC_H*/

15
src/include/86box/fdd.h
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@@ -8,15 +8,13 @@
*
* Definitions for the floppy drive emulation.
*
*
*
* Authors: Sarah Walker, <https://pcem-emulator.co.uk/>
* Miran Grca, <mgrca8@gmail.com>
* Fred N. van Kempen, <decwiz@yahoo.com>
*
* Copyright 2008-2018 Sarah Walker.
* Copyright 2016-2018 Miran Grca.
* Copyright 2018 Fred N. van Kempen.
* Copyright 2008-2025 Sarah Walker.
* Copyright 2016-2025 Miran Grca.
* Copyright 2018-2025 Fred N. van Kempen.
*/
#ifndef EMU_FDD_H
#define EMU_FDD_H
@@ -129,13 +127,6 @@ extern int drive_empty[FDD_NUM];
#define SECTOR_FIRST -2
#define SECTOR_NEXT -1
typedef union {
uint16_t word;
uint8_t bytes[2];
} crc_t;
void fdd_calccrc(uint8_t byte, crc_t *crc_var);
typedef struct d86f_handler_t {
uint16_t (*disk_flags)(int drive);
uint16_t (*side_flags)(int drive);