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Rename HexInc -> incBCD; comment out unused decrement functions

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This commit is contained in:
Allen Hill 2023-08-06 20:52:29 -04:00
parent 66633db24e
commit 241b7cf50a
2 changed files with 22 additions and 26 deletions
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42
avclandrv.c
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@ -833,9 +833,9 @@ byte AVCLan_Command(byte command)
return r;
}
// DONE: Nothing needed.
//------------------------------------------------------------------------------
byte HexInc(byte data)
/* Increment packed 2-digit BCD number.
WARNING: Overflow behavior is incorrect (e.g. `incBCD(0x99) != 0x00`) */
byte incBCD(byte data)
{
if ((data & 0x9)==0x9)
return (data + 7);
@ -843,28 +843,24 @@ byte HexInc(byte data)
return (data+1);
}
// DONE: Nothing needed.
//------------------------------------------------------------------------------
byte HexDec(byte data)
{
if ((data & 0xF)==0)
return (data - 7);
// /* Decrement packed 2-digit BCD number */
// byte decBCD(byte data)
// {
// if ((data & 0xF)==0)
// return (data - 7);
return (data-1);
}
// return (data-1);
// }
// DONE: Nothing needed.
//------------------------------------------------------------------------------
// encode decimal valute to 'toyota' format :-)
// ex. 42 (dec) = 0x42 (toy)
byte Dec2Toy(byte data)
{
byte d,d1;
d = (unsigned int)data/(unsigned int)10;
d1 = d * 16;
d = d1 + (data - 10*d);
return d;
}
// /* convert 8-bit binary to packed 2-digit BCD */
// byte bin2BCD8(byte data)
// {
// byte d,d1;
// d = (unsigned int)data/(unsigned int)10;
// d1 = d * 16;
// d = d1 + (data - 10*d);
// return d;
// }
// DONE: No timing adjustment needed.
//------------------------------------------------------------------------------

6
avclandrv.h
View File

@ -109,9 +109,9 @@ byte AVCLan_SendAnswer();
byte AVCLan_SendDataBroadcast();
byte AVCLan_Command(byte command);
byte HexInc(byte data);
byte HexDec(byte data);
byte Dec2Toy(byte data);
byte incBCD(byte data);
// byte decBCD(byte data); // unused
// byte bin2BCD8(byte data);
extern byte check_timeout;