[comp.sys.atari.st] Correction to VT100 CLS + More on char reads

sqrkl@csvax.liv.ac.uk (06/27/88)

In article <8806212005.AA08722@ucbvax.Berkeley.EDU>,
 F026@CPC865.UEA.AC.UK writes:

(A bit about how to clear the screen on a VT100)

> $ esc[0,8] == 27
> $ cls == "write sys$output """+esc+"[2J"""

Ahem ! This will NOT home the cursor - you need ESC [ H as well...

(A bit more about reading the bit pattern on a screen to find the char code)

> Just to reduce the damper put on that idea, that's exactly what Acorn's
> BBC Micro did:

As does the (totally amazing) Archimedes.

> The BBC Micro was a 6502 8-bit machine running at standard speed (1MHz?):

2 MHz thank you very much. It also has the world's fastest 8-bit interpreted
BASIC.

> I'm sure a 68000 can do as well!

Not if it's in an Atari ST it won't...

Richard K. Lloyd,       ****** This is a VAX 11/780 running VAX/VMS V4.5 ******
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