Dennis Boone 543aa3f963 Fix link fail on x64-64 ...

Weird gcc behavior.  Code snippet:

   uint16_t data;
   char ch;
   ...
   i = (data >> 8) & 0xff;
   ch = data & 0xff;
   ...
   fprintf(smlclog, "%s OTA '01%02o line '%02o set special character %d <%02x>\n", smlctimestamp, device, dc[dx].lineno, i, ch);

Output on x86-64 before this change:

    17:13:51 OTA '0150 line '02 set special character 3 <ffffffff>

Output on armhf or on x86-64 after this change:

    19:05:00.130466808 OTA '0150 line '02 set special character 3 <ff>

WTH?  Masking an unsigned with an appropriately sized mask produces a
sign extension?

2020-06-22 23:54:22 -04:00

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