mirror of
https://github.com/holub/mame
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ee9f88963c
- removed years from copyright notices - removed redundant (c) from copyright notices - updated "the MAME Team" to be "Nicola Salmoria and the MAME Team"
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/***************************************************************************
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jedparse.h
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Parser for .JED files into raw fusemaps.
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Copyright Nicola Salmoria and the MAME Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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***************************************************************************/
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#ifndef __JEDPARSE_H__
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#define __JEDPARSE_H__
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#include "osdcore.h"
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/***************************************************************************
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CONSTANTS
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***************************************************************************/
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#define JED_MAX_FUSES (65536)
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/* error codes */
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#define JEDERR_NONE 0
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#define JEDERR_INVALID_DATA 1
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#define JEDERR_BAD_XMIT_SUM 2
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#define JEDERR_BAD_FUSE_SUM 3
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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typedef struct _jed_data jed_data;
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struct _jed_data
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{
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UINT32 numfuses; /* number of defined fuses */
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UINT8 fusemap[JED_MAX_FUSES / 8];/* array of bit-packed data */
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};
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/***************************************************************************
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FUNCTION PROTOTYPES
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***************************************************************************/
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/* parse a file (read into memory) into a jed_data structure */
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int jed_parse(const void *data, size_t length, jed_data *result);
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/* output a jed_data structure into a well-formatted JED file */
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size_t jed_output(const jed_data *data, void *result, size_t length);
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/* parse a binary JED file (read into memory) into a jed_data structure */
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int jedbin_parse(const void *data, size_t length, jed_data *result);
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/* output a jed_data structure into a binary JED file */
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size_t jedbin_output(const jed_data *data, void *result, size_t length);
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/***************************************************************************
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INLINE FUNCTIONS
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***************************************************************************/
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INLINE int jed_get_fuse(const jed_data *data, UINT32 fusenum)
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{
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if (fusenum < JED_MAX_FUSES)
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return (data->fusemap[fusenum / 8] >> (fusenum % 8)) & 1;
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else
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return 0;
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}
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INLINE void jed_set_fuse(jed_data *data, UINT32 fusenum, UINT8 value)
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{
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if (fusenum < JED_MAX_FUSES)
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{
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/* set or clear the bit as appropriate */
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if (value)
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data->fusemap[fusenum / 8] |= (1 << (fusenum % 8));
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else
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data->fusemap[fusenum / 8] &= ~(1 << (fusenum % 8));
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}
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}
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#endif /* __JEDPARSE_H__ */
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