2/ Graphics Basic (Basicg) - Radio Shack TRS-80 Operation Manual

Computer Graphics Operation Manual
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2/ Graphics BASIC
Graphics BASIC (BASICG) vs. BASIC
The Graphics BASIC file on the supplied diskette is named
BASICG.
Program files created under BASICG are not directly loadable
with BASIC files (and vice versa). If you attempt to load a
BASIC file in compressed format from BASICG (and vice
versa), an NB error may occur. See Appendix B for a list of
BASICG error messages.
If you want to load a file from one BASIC to the other to
the other, we recommend that you first save the file in
ASCII format (SAVE"filenarne/ext",A).
You can then load and run a BASIC file from either BASICG or
BASIC. You cannot run programs that contain BASICG
statements while in BASIC.
Important Note: Because of memory limitations, some programs
(i.e., some application programs) will not run in BASICG.
BASICG uses approximately 6.5K more memory than BASIC. When
you enter BASIC with
~
files, there are 39,282 bytes free.
When you enter BASICG with
~
files, there are 32,675 bytes
free. Some Graphics Commands use Free Memory. This means
that the larger your BASIC programs are, the more
limitations on your Graphics capabilities.
Each Graphics program statement has a specific syntax and
incorporates a Graphics BASIC command or function.
Table 1 gives a brief description of the BASICG commands; Table 2
lists the BASICG functions. This section of the manual will
describe each statement and function in detail.
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