mjmahon@aol.com (Michael J. Mahon) wrote in message news:<20040321211116.03501.00000140@mb-m01.aol.com>...
> 
> Of course, the easiest way to avoid these problems is to call only
> the documented monitor entry points.
> 
> In this case, call the documented "BELL" entry point, or even
> call COUT with $87 in the A register to generate a "bell".
> 
> -michael


JSR $FBDD IS A DOCUMENTED ROM call!

It first appeared in the "Apple ][ Reference Manual" Copyright
1979,1981 Apple Computer Inc.

It appeas in Chapter 3 under the heading "Some Usefull Monitor
Soubroutines"

Speciffically, Page 67 says "$FBDD   BELL1  Beep the Apple's Speaker 
This subroutine beeps the Apple''s speaker for .1 second at 1KHZ. It
scambles the A and X registers."

The call documented immediately prior to $FBDD is

"$FF3A   BELL   Output a'bell' character.   This subroutine sends a
bell (CTRL G) character to the current output device.  It leaves the
accumulator holding $87."

Given that $FBDD isdocumented in the same book as (and immediately
following) the BELL ($FF3A) call you told me to use instead I would
argue that the failure to support BELL1 as well as BELL is a bug in
the clone ROM, not an error im my programming.

Additionally, recent testing has deteermined that ALL of the Apple
][+, ][e, //c, //c+, and ][GS support $FBDD