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Add 1.63 fixed point type.

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This commit is contained in:
Martin Ling 2026-06-29 19:28:50 +01:00
parent 8dbb3475da
commit 74c3b730fa
1 changed files with 17 additions and 0 deletions
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17
firmware/common/fixed_point.h
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@ -54,3 +54,20 @@ typedef uint64_t fp_28_36_t;
#define SR_FP_MHZ(mhz) (mhz##ULL * SR_FP_ONE_MHZ)
#define SR_FP_KHZ(khz) (khz##ULL * SR_FP_ONE_KHZ)
#define SR_FP_HZ(hz) (hz##ULL * SR_FP_ONE_HZ)
/* 1.63 fixed point */
typedef uint64_t fp_1_63_t;
#define FRAC_ONE (1ULL << 63)
/* one hundredth in 1.63 fixed point */
#define FRAC_ONE_PERCENT (FRAC_ONE / (100ULL))
/* one thousandth in 1.63 fixed point */
#define FRAC_ONE_PERMILLE (FRAC_ONE / (1000ULL))
/* one millionth in 1.63 fixed point */
#define FRAC_ONE_PPM (FRAC_ONE / (1000000ULL))
/* one billionth in 1.63 fixed point */
#define FRAC_ONE_PPB (FRAC_ONE / (1000000000ULL))