Memory Allocation

Program Limits And Memory Usage

1. Ranges

   Variables: ±9.99999E±126

   String arrays: Up to 2544 characters per string

   Line numbers: 0-65535 inclusive

   Program line length: Up to 254 characters including line number

2. Precision

   Single precision variables have 6 digit resolution.

   Double precision variables have 14 digit resolution.

3. Memory overhead

   Program lines require 4 bytes minimum, as follows:

   Line number: 2 bytes

   Line length: 1 byte

   Carriage return: 1 byte

Also each reserved word, operator, variable name character, special character and constant character requires 1 byte. Maximum program size in present versions: 54K Bytes (Page 0)

Dynamic (Run-Time) Memory Allocation

1. Symbol Table

   Entries occupy: 7 Bytes each Maximum symbol table size: 16K Bytes

2. Single Precision Array

   DIM A(X) occupies (X+1)*5+7 Bytes

3. Double Precision Array

   DIM A!(X) occupies (X+1)*9+7 Bytes

4. String Array Elements

   DIM A$(X,N) occupies (X+1)*N+7 Bytes

5. Array Size

   Maximum number of elements in an array is 16,383.