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[liba] Use softfloat IEEE754 getters implementation instead of

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re-implementing them
This commit is contained in:
Émilie Feral
2018-01-31 19:50:46 +01:00
committed by EmilieNumworks
parent c0a9ec1c91
commit ecb7ec403a
1 changed files with 9 additions and 24 deletions
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33
liba/src/ieee754.c
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@@ -1,37 +1,22 @@
#include <private/ieee754.h>
#include "external/softfloat/include/internals.h"
uint32_t ieee754man32(float x) {
union {
float f;
uint32_t i;
} u;
u.f = x;
return (u.i & ((1<<23)-1));
uint32_t * address = (uint32_t *)&x;
return fracF32UI( *address );
}
uint8_t ieee754exp32(float x) {
union {
float f;
uint32_t i;
} u;
u.f = x;
return (u.i >> 23) & 0xFF;
uint32_t * address = (uint32_t *)&x;
return expF32UI( *address );
}
uint64_t ieee754man64(double x) {
union {
double d;
uint64_t i;
} u;
u.d = x;
return (u.i & (((uint64_t)1<<52)-1));
uint64_t * address = (uint64_t *)&x;
return fracF64UI( *address );
}
uint16_t ieee754exp64(double x) {
union {
double d;
uint64_t i;
} u;
u.d = x;
return (uint16_t)((u.i >> 52) & 0x7FF);
uint64_t * address = (uint64_t *)&x;
return expF64UI( *address );
}