FreeCalypso > hg > freecalypso-sw
view loadtools/hexdecode.c @ 137:5fe5559003b7
RV bring-up: RVT "system time" heartbeat messages now get printed every 20 s!
The problem was a slight Nucleus API incompatibility between what the RVF code
from TCS211 expected and what our FreeNucleus implements: in the TCS211
version of Nucleus it was OK to pass 0 for the initial_time parameter to
NU_Create_Timer(), but our version flags such usage as an error.
RVF used 0 as the dummy initial_time value when initializing the legacy RV
timers with NU_DISABLE_TIMER. Implemented fix: using a dummy value of 1
instead.
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
---|---|
date | Mon, 11 Nov 2013 09:56:23 +0000 |
parents | aa1f6fe16fef |
children |
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/* * This module contains the decode_hex_byte() function, * which is used by the SREC file reader and will likely be used * by other code as well, such as the dump-to-file function * of loadtool. */ #include <ctype.h> decode_hex_byte(s) char *s; { register int u, l; if (!isxdigit(s[0]) || !isxdigit(s[1])) return(-1); if (isdigit(s[0])) u = s[0] - '0'; else if (isupper(s[0])) u = s[0] - 'A' + 10; else u = s[0] - 'a' + 10; if (isdigit(s[1])) l = s[1] - '0'; else if (isupper(s[1])) l = s[1] - 'A' + 10; else l = s[1] - 'a' + 10; return((u << 4) | l); }