HC12: Integer Division of Longs

[YeOldeBDM]

This may be something I missed in the C standard, but I am not getting the expected result.

static long temp_long; //static because linker  has SP INFO incorrect warning

temp_long=99999;

//snip

//.

//.

//snip

//debugger gives temp_long is 99999 in base 10 right here

temp_long=temp_long+(long)50; 

//debugger gives correct value of 10049 for temp_long

temp_long=temp_long/(long)100;

//debugger says temp_long is now 66536

//thats 1000+65536 which looks like a problem mixing ints and longs

What did I miss about integer division of longs in K&R or the C standard?

I am using Codewarrior 3.1 for HCS12.

Message Edited by CrasyCat on 2007-04-13 11:26 AM

[YeOldeBDM · Accepted solution]

Never mind: the results became consistent after some code below the lines in question was removed.  Basically the source of mysterious results  was the optimizer looking ahead in the listing and putting some work in the division by 100.