Hello;
I have here my first Sinclair ZX81 Computer with 16K Ram extension.
To check if the Ram extension works properly i want to write an small
Basic program to check each byte.
The first thing i struggle on is that 1 could not type in a for next
statement.
10 FOR I = 17000 TO 32768
if I type
Marco,
All keywords on the ZX81 have to be single keypress-type words - not typed out.
The “TO” in your FOR loop is typed by pressing Shift-4. Don’t type “T” “O” or
you will get a syntax error.
Ian
> On Jul 12, 2015, at 11:21 PM, Marco Rauhut wrote:
>
> Hello;
>
> I have here my first Sinc
Marco Rauhut writes:
> if I type in this line, the ZX81 mark an inverted "S" just before "TO".
> 10 FOR I = 17000 "S"TO 32768
I suspect you typed " TO " (space, T, O, space) rather than using the TO
keyboard (shift-4). As the manual puts it, "You must remember that it is
useless trying to spell
Thanks! Thats it. Now i also noticed the SHIFT+NEWLINE(Funktion) to
switch the Cursor into inverted F.
Am 13.07.2015 um 12:07 schrieb Adam Sampson:
Marco Rauhut writes:
if I type in this line, the ZX81 mark an inverted "S" just before "TO".
10 FOR I = 17000 "S"TO 32768
I suspect you ty