SPIM vs MARS for RISC

Question

I know that MARS is missing some macros, relative to QtSpim, and does not allow overloaded macros. I would like to know from the point of view of a RISC code whether there are any worthy variations between the two, and what these are if they are useful or make it more user friendly. Thank you

Answer 1

There aren't any noticeable differences, as the comments mention mars has support for more types of syscalls, but that's about it.