IBM ROM BASIC or lack thereof

From: Glen Goodwin <>
Date: Sun Sep 30 22:09:56 2001

Tony Duell wrote:

> My guess is that clones used the same method. They tried to boot from the

> hard disk and floppy disk and then call INT 18h. Since there is no ROM
> basic, INT 18h points to a little bit of code that displays the No ROM
> BASIC message (as far as I can see this message is not in the IBM ROMs)
> and then halts the CPU.

This was the point to my original question: why would clone makers go to
the trouble of displaying the message and then halting the system, instead
of just *halting the system*? (Unless they were using stolen code.) Just
doesn't quite make sense . . .

Received on Sun Sep 30 2001 - 22:09:56 BST

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