Re: A83: Loading PI into OP1

To: assembly-83@lists.ticalc.org
Subject: Re: A83: Loading PI into OP1
From: Linus Akesson <lairfight@softhome.net>
Date: Sat, 03 Apr 1999 22:16:03 +0100
Delivered-To: assembly-83-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: assembly-83@lists.ticalc.org
In-Reply-To: <36FF3347.B9313469@geocities.com>
Reply-To: assembly-83@lists.ticalc.org


On 29-Mar-99, you wrote:


> How would I go about loading PI into OP1... I thought maybe if I loaded
> the PI token into OP1 because it would evaluate it to pi but you have to
> do some symbol lookup or something... anyway, what is some source to
> load PI into OP1.

I'd suggest putting it there yourself.

        ld hl,pi
        ld de,OP1
        ld bc,9
        ldir
        ...

pi:     .db 00h,80h,31h,41h,59h,26h,53h,58h,97h

or something like that.

> Unless there is a rom call that will convert degrees
> to radians?

Try _DTOR.

Linus
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