There is nothing wrong with sdcc,it has a bad press bcause its a freeware project and it doesnt come with a shiny IDE.For the vast majority of projects what it does is fine and it produces resonably fast code.If anything it suffers froma lack of maths librarysmbut nothing which is going to stop anyone from using it.its free and nine out of ten aliens who expressed a preference said that they didnt use anything else.