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Re: Testing Memory
- Subject: Re: Testing Memory
- From: "josephoswaldgg@hotmail.com" <josephoswald@gmail.com>
- Date: 9 Dec 2005 11:42:36 -0800
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Robert C. wrote:
> I was wondering, is there a way of testing the apple's memory similar to the
> way older PC's used to test memory on startup? I have an Apple ][+ with the
> Microsoft 16K Memory Card and tried to check the memory above 48K by
> running a simple peek routine from 49152 to 65536:
>
> 10 FOR X = 49152 TO 65536 : PRINT X;" - ";: PEEK (X) : NEXT X
>
> Unfortunately the computer froze immediately upon executing the program.
> Checking the LED's on the memory card shows that the memory card had
> switched to bank 1 before the error occured.
Chances are you switched the language card so that the Applesoft
ROM-based interpreter that was trying to execute your problem got
replaced, in the middle of a PEEK operation, with a program (such as
Integer Basic or garbage in memory) that was neither prepared to or
interested in executing Applesoft commands.