subtraction with borrow

Hi all How to write a pragram to subtraction immediate data from accumulator with borrow in C51?
Problem With Subtraction

I am trying to do a straight forward subtraction and am getting the wrong result every time. The code is as simple as if(SetPoint>PulseCountLast) { error = SetPoint-PulseCountLast; } All three...
Unsigned short subtraction

I don't know what the ANSI/ISO C standard says about this, but I would expect the if block in the example below to be executed when a is 0 and b is 65535: /* a and b are unsigned short (16 bits)...
Problem With Subtraction

I am trying to do a straight forward subtraction and am getting the wrong result every time. The code is as simple as if(SetPoint>PulseCountLast) { error = SetPoint-PulseCountLast; } All three...
subtraction with borrow

Hi all How to write a pragram to subtraction immediate data from accumulator with borrow in C51?