summaryrefslogtreecommitdiffstats
path: root/CAN-binder/libs/bitfield-c/src/bitfield/8byte.h
diff options
context:
space:
mode:
Diffstat (limited to 'CAN-binder/libs/bitfield-c/src/bitfield/8byte.h')
-rw-r--r--CAN-binder/libs/bitfield-c/src/bitfield/8byte.h88
1 files changed, 0 insertions, 88 deletions
diff --git a/CAN-binder/libs/bitfield-c/src/bitfield/8byte.h b/CAN-binder/libs/bitfield-c/src/bitfield/8byte.h
deleted file mode 100644
index 0451269..0000000
--- a/CAN-binder/libs/bitfield-c/src/bitfield/8byte.h
+++ /dev/null
@@ -1,88 +0,0 @@
-#ifndef __8BYTE_H__
-#define __8BYTE_H__
-
-#include <stdint.h>
-#include <stdbool.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Public: Reads a subset of bits into a uint64_t.
- *
- * source - the bytes in question.
- * offset - the starting index of the bit field (beginning from 0).
- * bit_count - the width of the bit field to extract.
- * data_is_big_endian - if the data passed in is little endian, set this to false and it
- * will be flipped before grabbing the bit field.
- *
- * Bit fields are positioned according to big-endian bit layout.
- *
- * For example, the bit layout of the value "42" (i.e. 00101010 set at position
- * 14 with length 6 is:
- *
- * 000000000000001010100000000000000000000000000000000000000000000
- *
- * and the same value and position but with length 8 is:
- *
- * 000000000000000010101000000000000000000000000000000000000000000
- *
- * If the architecture where is code is running is little-endian, the input data
- * will be swapped before grabbing the bit field.
- *
- * Examples
- *
- * uint64_t value = get_bitfield(data, 2, 4);
- *
- * Returns the value of the requested bit field, right aligned in a uint64_t.
- */
-uint64_t eightbyte_get_bitfield(uint64_t source, const uint16_t offset,
- const uint16_t bit_count, const bool data_is_big_endian);
-
-/* Public: Return a single nibble from the payload, with range checking.
- *
- * source - the source payload.
- * nibble_index - the index of the nibble to retreive. The leftmost nibble is
- * index 0.
- * data_is_big_endian - if the data passed in is little endian, set this to false and it
- * will be flipped before grabbing the bit field.
- *
- * Returns the retreived nibble, right aligned in a uint8_t.
- */
-uint8_t eightbyte_get_nibble(const uint64_t source, const uint8_t nibble_index,
- const bool data_is_big_endian);
-
-/* Public: Return a single byte from the payload, with range checking.
- *
- * source - the source byte array.
- * byte_index - the index of the byte to retreive. The leftmost byte is index 0.
- * data_is_big_endian - if the data passed in is little endian, set this to false and it
- * will be flipped before grabbing the bit field.
- *
- * Returns the retreived byte.
- */
-uint8_t eightbyte_get_byte(const uint64_t source, const uint8_t byte_index,
- const bool data_is_big_endian);
-
-/* Public: Set the bit field in the given data array to the new value.
- *
- * destination - a byte array with size at least offset + bit_count.
- * value - the value to set in the bit field.
- * offset - the starting index of the bit field (beginning from 0).
- * bit_count - the number of bits to set in the data.
- *
- * Returns true if the bit_count is enough to fully represent the value, and
- * false if it will not fit.
- */
-bool eightbyte_set_bitfield(uint64_t value,
- const uint16_t offset, const uint16_t bit_count, uint64_t* destination);
-
-/* Private: Determine the index of the last bit used.
- */
-uint8_t find_end_bit(const uint16_t num_bits);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif // __8BYTE_H__