51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
#ifndef __VHEX_DEFS_TYPES__
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# define __VHEX_DEFS_TYPES__
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#include <vhex/defs/attributes.h>
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/* For size_t, mainly */
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#include <stddef.h>
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/* For all fixed-width integer types */
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#include <stdint.h>
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/* For human-readable boolean types */
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#include <stdbool.h>
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/* Common system types: ssize_t, off_t, etc. */
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#include <sys/types.h>
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/* Fixed-width types for bit fields are quite meaningless */
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typedef unsigned int uint;
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//---
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// Structure elements
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//----
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/* Giving a type to padding bytes is misguiding, let's hide it in a macro */
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#define pad_nam2(c) _ ## c
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#define pad_name(c) pad_nam2(c)
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#define pad(bytes) uint8_t pad_name(__COUNTER__)[bytes]
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/* byte_union() - union between an uint8_t 'byte' element and a bit field */
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#define byte_union(name, fields) \
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union { \
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uint8_t byte; \
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struct { fields } VPACKED(1); \
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} VPACKED(1) name
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/* word_union() - union between an uint16_t 'word' element and a bit field */
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#define word_union(name, fields) \
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union { \
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uint16_t word; \
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struct { fields } VPACKED(2); \
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} VPACKED(2) name
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/* lword_union() - union between an uint32_t 'lword' element and a bit field */
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#define lword_union(name, fields) \
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union { \
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uint32_t lword; \
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struct { fields } VPACKED(4); \
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} VPACKED(4) name
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#endif /*__VHEX_DEFS_TYPES__*/
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