Florent DEFAY <spira.inhabitant@xxxxxxxxx> writes: > My question is: > should I implement umodhi3 and udivhi3 and include them in libgcc so > __divsi3 is alright, > or should I implement divmodsi4 to override __divsi3 and __modsi3? It's a question of runtime efficiency. If it is faster to compute just the quotient or the remainder, then implement __divsi3 and __modsi3 in libgcc. If the processor gives you both the quotient and the remainder at the same time, then implement the udivmodsi4 insn in the MD file (e.g., avr.md). Ian
