20 lines
507 B
C
20 lines
507 B
C
/* 5 bit exponent, 11 bit mantissa approximations of min/max */
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#ifndef LIGHTNING_COMMON_FP16_H
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#define LIGHTNING_COMMON_FP16_H
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#include "config.h"
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#include <common/amount.h>
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typedef u16 fp16_t;
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static inline u64 fp16_to_u64(fp16_t val)
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{
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return ((u64)val & ((1 << 11)-1)) << (val >> 11);
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}
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fp16_t u64_to_fp16(u64 val, bool round_up);
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bool amount_msat_less_fp16(struct amount_msat amt, fp16_t fp);
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bool amount_msat_greater_fp16(struct amount_msat amt, fp16_t fp);
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#endif /* LIGHTNING_COMMON_FP16_H */
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