Hello. I have to start to make some c compiler for my own cpu. This cpu has very simple core and has many limitations. I think that many of those limitations are evitable in source coding. But I cannot convince a few of them. Instructions of this cpu core have no indexed addressing mode like 'base' + 'offset'. This cpu can address memories only according to followings. immediate addressing indirect addressing with general registers I really want to know that gcc is portable on this core in spite of the limitation. Without indexed addressing mode, in addressing local variables on stack, or accessing array, it's even very difficult to write hand assemble code. So I need to know that gcc can overcome this limitation. Please help me.
