Radio Shack CTR-118 User Manual download pdf (Page 42)

3-12

PRINT #-1,

item list

Prints the values of the specified variables onto cassette tape. (Recorder must

be properly connected and set in Record mode when this statement is

executed.) The PRINT # statement must always specify a device number.

This is because the TRS-80 can actually input/output to two cassette

machines, once you've added the Expansion Interface described in Chapter

10. For normal use with just one recorder connected, the device number must

be -1, e.g., PRINT #-1 (followed by a comma and then the item list).

Example:

5 A1=-30.334:B$="STRING-VALUE"

10 PRINT*-1,A1,B$,"THAT'S ALL"

This stores the current values of Al and B$, and also the string-literal

"THAT'S ALL". The values may be input from tape later using the INPUT#

statement. The INPUT# statement must be identical to the PRINT#

statement in terms of

number

and

type of items

in the PRINT#/INPUT#

lists. See INPUT#.

Special Note:

The values represented in item list must not exceed 248 characters total;

otherwise, all characters after the first 248 will be truncated.

For example,

#-1, A#, B#, C#, D#, E#, F#, G#, H#, I#, J#, A$

will probably

exceed the maximum record length if A$ is longer than about 75 characters.

If you have a lengthy list, you should break it up into two or more PRINT#

statements.

INPUT #-1,

item list

Inputs the specified number of values stored on cassette and assigns them to

the specified variable names. Like the PRINT# statement, INPUT# requires

that you specify a device number. (This will make more sense when you have

added the Expansion Interface and are using a dual cassette system. See

Chapter 10.) Use Device number -1 for normal applications without the

Expansion Interface. e.g., INPUT#-1,

list

Example:

50 INPUT #-1,X,P$,T$

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 ... 195 196

No comments

Radio Shack CTR-118 User Manual Page 42