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Add some test cases; some are failing so far.

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This commit is contained in:
Olaf Seibert
2021-01-18 21:42:18 +01:00
parent 6f7e7963bc
commit 37abe35427
3 changed files with 41 additions and 2 deletions
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14
parse.c
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@@ -397,12 +397,22 @@ int parse_float(
/* ufrac is now >= 2**55 and < 2**56 */
/* Round from FLT4 to FLT2 or single-word float */
/* Round from FLT4 to FLT2 or single-word float.
*
* +--+--------+-------+
* |15|14 7|6 0|
* +--+--------+-------+
* | S|EEEEEEEE|MMMMMMM|
* +--+--------+-------+
* Sign (1 bit)
* Exponent (8 bits)
* Mantissa (7 bits)
*/
if (size < 4) {
/* Round to nearest 8- or 24- bit approximation */
ufrac += (1UL << (56 - (8 + 16*(size-1)) - 1));
if ((ufrac >> 56) > 0) { /* Overflow? */
if ((ufrac >> 56) > 0) { /* Overflow? */
ufrac >>= 1; /* Normalize */
uexp--;
}