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forked from fsfw/fsfw

set deser test complete

new bitutility file
This commit is contained in:
2021-02-28 16:34:11 +01:00
parent 714f11f117
commit 940bbf47e4
6 changed files with 81 additions and 40 deletions

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@ -7,6 +7,7 @@ target_sources(${LIB_FSFW_NAME}
PeriodicOperationDivider.cpp
timevalOperations.cpp
Type.cpp
bitutility.cpp
)
add_subdirectory(math)
add_subdirectory(math)

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@ -0,0 +1,33 @@
#include "bitutility.h"
void bitutil::bitSet(uint8_t *byte, uint8_t position) {
if(position > 7) {
return;
}
uint8_t shiftNumber = position + (7 - 2 * position);
*byte |= 1 << shiftNumber;
}
void bitutil::bitToggle(uint8_t *byte, uint8_t position) {
if(position > 7) {
return;
}
uint8_t shiftNumber = position + (7 - 2 * position);
*byte ^= 1 << shiftNumber;
}
void bitutil::bitClear(uint8_t *byte, uint8_t position) {
if(position > 7) {
return;
}
uint8_t shiftNumber = position + (7 - 2 * position);
*byte &= ~(1 << shiftNumber);
}
bool bitutil::bitGet(const uint8_t *byte, uint8_t position) {
if(position > 7) {
return false;
}
uint8_t shiftNumber = position + (7 - 2 * position);
return *byte & (1 << shiftNumber);
}

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@ -0,0 +1,18 @@
#ifndef FSFW_GLOBALFUNCTIONS_BITUTIL_H_
#define FSFW_GLOBALFUNCTIONS_BITUTIL_H_
#include <cstdint>
namespace bitutil {
/* Helper functions for manipulating the individual bits of a byte.
Position refers to n-th bit of a byte, going from 0 (most significant bit) to
7 (least significant bit) */
void bitSet(uint8_t* byte, uint8_t position);
void bitToggle(uint8_t* byte, uint8_t position);
void bitClear(uint8_t* byte, uint8_t position);
bool bitGet(const uint8_t* byte, uint8_t position);
}
#endif /* FSFW_GLOBALFUNCTIONS_BITUTIL_H_ */