Tandy 1000 Basic Reference Manual

Chapter 10 I BASIC Keywords
Therefore, select conservative values for the trap num-
ber.
For example, if number is set at 32, event traps
might happen
so often that there is little time to exe-
cute the rest
of your program. It is suggested that the
trap number be less than 16 for better performance.
Example
10 PLAY ON
20 ON PLAY(2) GOSUB
30 REM
500 END
1000 REM PROCESSING
1100 RETURN 30
1000
ROUTINE
Line 10 turns on play trapping. After each program statement is
executed, BASIC checks to see if the number of notes in the mu-
sic buffer
is less than 2 notes. If it is, BASIC immediately exe-
cutes the subroutine
at Line 1000.
237

Tandy 1000 Specifications

General

Processor	Intel 8088
Processor Speed	4.77 MHz
RAM	128 KB (expandable to 640 KB)
Operating System	MS-DOS 2.11
Manufacturer	Tandy Corporation
Release Year	1984
Storage	Single or double 5.25" floppy disk drive (360 KB), optional hard drive
Sound	Tandy 3-voice sound
Ports	Parallel, Serial
Graphics	CGA (Color Graphics Adapter)
Graphics Modes	320x200, 640x200