Tandy 1000 User Manual

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
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Tandy 1000

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