APPENDIX TWO



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32768       |                                                             |
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32767 _____ | User-program RAM __________________________________________ |
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            | The amount of RAM can be ascertained by:                    |
            | PRINT FRE(0)                                                |
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            | Bottom varies: see note below                               |
(13062)     | Depends on buffer area allocated.                           |
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            | RAM used by DOS and File System Manager                     |
            |                                                             |
            |                                     144,145 MEMTOP          |
            | Stack for FOR-NEXT & GOSUB          142,143 RUNSTK          |
            |                                     14,15 APPMHI            |
Size and    |                                                             |
location    |                                                             |
vary with   |                                                             |
program     |                                                             |
size        |                                                             |
            | String & array table &                                      |
            | end of BASIC program                140,141 STARP           |
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            |                                                             |
            | BASIC program                                               |
            | area                                                        |
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            | Statement table:                    136,137 STMTAB          |
            | Beginning of BASIC program                                  |
            | Variable variable table             134,135 VVTP            |
            |                                                             |
            | VNTP + 1                            132,133 VNTD            |
            |                                                             |
            | Variable name table                 130,131 VNTP            |
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(7420)      | BASIC bottom of memory              743,744 MEMLO           |
            |                                     128,129 LOMEM           |
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            | Sector buffers                      4921,4937 SABUFL/H      |
6781        | Drive & sector buffers              4905,4913 DBUFA1/H      |
6047        | DOS vector                          10,11  DOSVEC           |
5440        | DUP.SYS start                                               |
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