Sinclair QL User Manual

CONTINUE
RETRY
error handling
CONTINUE allows a program which has been halted to be continued. RETRY allows
a program statement which
has reported an error to be re-executed.
syntax: CONTINUE
RETRY
•
example:
CONTINUE
RETRY
warning A program can only continue if:
1. No new lines have been added to the program
2. No new variables have been added to the program
3. No lines have been changed
The value of vallables may be set or changed.
•
COpy will copy a file from an input device to an output device until an end of file marker
is detected. COPY _N will not copy the header (if it exists) associated with a file and
will allow Microdrive files to be correctly copied to another type of deVice.
Headers are associated with directory-type devices and should be removed uSing
COpy _N when copying to non-directory devices, e.g. mdv1 is a directory device; ser1
is a non-dlfectory device.
COPY
COPY_N
devices
syntax:
COpy device TO device
COPY _N deVice TO deVice
It must be possible to input from the source device and it must be possible
to output to the destination device.
•
10
example:
iii.
COpy mdv1 data fi le TO con
COpy neti-3 TOmdv1 data -
COpy N mdv1
test data TO ser1
[copy to default window]
[copy data from network
station to mdv_data.]
[copy mdv1_tesLdata to
serial port 1 removing
header information]
12/84
•

Sinclair QL Specifications

General

Processor	Motorola 68008
Clock Speed	7.5 MHz
RAM	128 KB (expandable to 640 KB)
ROM	48 KB
Operating System	Sinclair QDOS
Release Year	1984
Storage	Microdrive tape loop
Graphics	256x256 pixels, 8 colors
Ports	RS-232, ROM cartridge
Sound	Beeper (internal speaker)