Precisely what I said in my 1st posting about new efficient compilers. Which also BTW have become reasonably priced.
In a simple chip like MCS51 there are only a few such dual ways. And just like we by habit write CLR A but MOV B,#00H, one can very easily get used to algebraic assembly. Considering the fact in a small organization the main source of error will be the guy/ gal who wears more than one hat, a few coding uncertainities is a small price for code readability in assembly. Actually I went so as to implement a macro preprocessor for assembly because no preprocessor with cross assemblers supports the syntax identical to C. That helped even the newbies who worked for me.