Programming for Microprocessors

190 Appendix 3

3. Temporary expression results

In evaluating expressions, it is often necessary to store sub-expression

results in temporary locations. Although the same locations can be used

over and over in the same procedure, once the procedure is terminated,

those locations are frozen for further use. This prevents a location being

overwritten by a function call in the middle of an expression. The limits

of this area are printed at the bottom of the dictionary listing. The start

address of this area can be set by the user, but defaults to address 0. It

is strongly recommended that this area be situated in the base page,

since this considerabl ...