Jack W. Crenshaw - Any clues how to optimize ?

I am working on simple compiler (currently only a "basic" to x86 asm
converter). It is based on the model by Jack W. Crenshaw. (Author of
"Let's build a compiler" or something very similar). I am having
problems to accept the inefficiency on the expression calculations.


The code output is way below acceptable. Now i was wondering, how do i
optimize this to be any better? I was thinking about a postfix
solution, but since this compiler is going to a singleparse, i have to
do this exclusivly for expressions. I havent been able to write a good
solution for this problem, as if often tend to "fixing" the postfix
routine. Could someone help me with this? And also, i have problems
on designing the string allocation system. The target mode is Windows
Protected mode. Could someone give me some clues to this, as i am
still a bit off.


I have been searching the net the last 4 days, obviously in the wrong
places.


Sten D. Sørsdal

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