28 lines
714 B
C
Executable File
28 lines
714 B
C
Executable File
#include "fract32.h"
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fract32_t fract32_create(uint32_t inNumerator, uint32_t inDenominator) {
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if(inDenominator <= inNumerator)
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return 0xFFFFFFFF;
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uint32_t tempMod = (inNumerator % inDenominator);
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uint32_t tempDiv = (0xFFFFFFFF / (inDenominator - 1));
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return (tempMod * tempDiv);
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}
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fract32_t fract32_invert(fract32_t inFract) {
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return (0xFFFFFFFF - inFract);
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}
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#ifndef FIXMATH_NO_64BIT
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uint32_t fract32_usmul(uint32_t inVal, fract32_t inFract) {
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return (uint32_t)(((uint64_t)inVal * (uint64_t)inFract) >> 32);
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}
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int32_t fract32_smul(int32_t inVal, fract32_t inFract) {
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if(inVal < 0)
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return -fract32_usmul(-inVal, inFract);
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return fract32_usmul(inVal, inFract);
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}
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#endif
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