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Radio Shack TRS-80 Model II - Page 14

Radio Shack TRS-80 Model II
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VERSION 2.0 UPDATE
Changesto Basic
New Keywords
These are described fully in the new pages for Chapter 3
of
the BASIC Reference
Manual.
Keyword
ERRS$ Function
NAME Statement
Other Changes
PRINT Zones
Operation
Returns the lastTRSDOS error number and message
Renames a diskette file.
The
PRINT zone width is
16
columns (was 14). For example:
PRINT
"A", "B",
"C",
"0"
prints the letters in video columns
1,
17,
33
and 49.
New Error Codes
TRSDOS errorcodes 47-48 now indicate FC errors in BASIC.
TRSDOS
errorcode 49 now indicates an
110
error in BASIC. (Use ERRS$ to get the
TRSDOS errornumber and message.)
LinePrinter
The maximum LPRINT or
LUST
line is 255 characters (was 132).
Passwords
You can assign a password to a program when you SAVE it. This password will be
required for loading
or
running the program.
Line Feeds
You can include line feeds in the program text, SAVE the program in ASCII format,
and
LOAD the program later(used to cause a Direct Statement error). Each line feed
in the file requires two bytes
of
diskette storage.
Take care not to create a line that will require more than
255 bytes for storage. This
maximum includes the line numberdigits and the spacefollowing the line number.
If
the line contains embedded line feeds, allow two bytes for each line feed.
47

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