Re: Introducing Slammer!

["Michael J. Mahon" <mjmahon@aol.com>]

On 7/28/2010 4:25 AM, Calibrator wrote:
> On Jul 27, 4:43 am, Ivan Drucker<i...@ivanx.com>  wrote:
> > I wanted the Lam technique, but at machine language speed. So I tried to do
> > something that I figured was probably impossible, and in any event crazy:
> > write a routine consisting exclusively of bytes in the range $21-$5A, so
> > that they could appear in REM lines that could be typed on every Apple II.
> > This meant the only useful memory I could address was $0021-$005A, the only
> > operands I could use were #$21-#$5A, and the only instructions I had
> > available were AND BIT BMI BVC CLI EOR JMPa LSR PHA PLP ROL RTI.
> > (I used all but one of them.)

I'm guessing that it was BVC that went unused...?  ;-)

-michael

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