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Simplified char to nibble function

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This commit is contained in:
Kreeblah 2021-01-24 02:08:02 -08:00
parent 358ebf88f4
commit ed293c2628
1 changed files with 5 additions and 14 deletions
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19
Cart_Reader/NES.ino
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@ -956,22 +956,13 @@ char* getDatabaseFieldFromRow(const char* dbstr, uint8_t fieldnum)
unsigned char getNibbleFromChar(char num) unsigned char getNibbleFromChar(char num)
{ {
if(num >= '0' && num <= '9') char ret_char = num & 0x0F;
if(num > '9')
{ {
return (num - '0'); ret_char += 9;
}
else if(num >= 'A' && num <= 'F')
{
return (num - 'A' + 10);
}
else if(num >= 'a' && num <= 'f')
{
return (num - 'a' + 10);
}
else
{
return 0;
} }
return ret_char;
} }
unsigned char getByteFromChars(char msn, char lsn) unsigned char getByteFromChars(char msn, char lsn)