3.
Variable area
•
The start of this area is indicated by VARTAB (0322 H).
•
The pattern and the format of variable is as follows:
Variable pattern
INT
02
Variable name
8
bytes
STR
03
Variable name
Length
Pointer
4.
Array area
5.
•
The range of this area is indicated by ARYTAB (0324 H) and
STREND (0326
H).
•
The contents of arrays are input here.
Stack area
•
The start of this area is indicated by STKTOP (01 DDH)
•
The BASIC system constantly monitors STREND and the present
stack (SP) to make sure that the stack area does not destroy the array
area.
6.
String area
•
The range of this area is indicated by STKTOP (0324 H) and
MEMSIZ (01 DFH).
•
The size of this area is set by the first parameter of the CLEAR
instruction. However, when a default occurs, it is set to 50 bytes.
•
When the string area is occupied, the first location of its contents is
indicated by FRETOP (0204 H). When it is not occupied, FRETOP
(0204 H) indicates the same location as MEMSIZ.
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Summary of Contents for X-07
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Page 8: ...1 Learning how to operate the X 07 2 Special functions and peripheral devices 3 Reference m ...
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Page 145: ...136 Instructions Others BEEP MOTOR REM Functions ABS FIX HEX INT SGN START TAB ...
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