Hello SDCC users, I am sure this has been discussed before. So I apologize in advance for repeating it.
With assembler, you can test for a reg/mem operation over/under flow by checking the carry flag. So for C, when overflows are involved, I have always used larger variables. For 8 bit, use 16 bit. For 16, use 32. Then greater/less than tests can be used looking for quasi over flow. But that's wasteful. How do you check over/underflow in C without wasting memory? /Mike
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