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Tandy 1000 User Manual

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Basic
ERASE
array[,array,
...I
Erases
1
or more
arrays
from memory. Lets you either redimen-
sion arrays or use their previously allocated space in memory for
other purposes.
ERASE
C
ERASE
G,
H,
I,
Z$
ERDEV
Advanced Function. Returns the value of a device error within
MS-DOS as set by the Interrupt 24 handler.
The lower
8
bits of ERDEV contain the Interrupt 24 error code.
ERDEV
ERDEV$
Advanced Function. Returns the name of the device (as set by the
Interrupt 24 handler) when
a
device error occurs.
If
the error
occurred on a character device, ERDEV$ returns the 8-byte
character device name. If the error does not occur on a character
device, ERDEV$ returns the 2-character block device name.
ERDEV$
ERL
Returns the number of the line in which an error has occurred.
If
no error has occurred, ERL returns
0.
If the error occurs while you
are entering something
at
the prompt, ERL returns
65535
(the
largest number that can be represented in 2 bytes).
PRINT ERL E
=
ERL
ERR
Returns the error code if an error has occurred.
IF
ERR
=
7
THEN1000 ELSE
2000
32
Tandy
1000

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Tandy 1000 Specifications

General IconGeneral
ProcessorIntel 8088
Processor Speed4.77 MHz
RAM128 KB (expandable to 640 KB)
Operating SystemMS-DOS 2.11
ManufacturerTandy Corporation
Release Year1984
StorageSingle or double 5.25" floppy disk drive (360 KB), optional hard drive
SoundTandy 3-voice sound
PortsParallel, Serial
GraphicsCGA (Color Graphics Adapter)
Graphics Modes320x200, 640x200

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