A86: Re: OP1

To: <assembly-86@lists.ticalc.org>
Subject: A86: Re: OP1
From: "Jeremy Goetsch" <jeremy@stupidzone.com>
Date: Fri, 20 Mar 1998 14:58:21 -0800
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>how do i set OP1 equal to a fraction?  ld a,.25   and ld a,1/4   with
>_SetXXOP1 dont work, and i cant fin any equates for setting them equal to
>fractions.  do i have to do _OP2SET4, _OP1SET1, _FPDIV?  thanx for any
help?

You could do that.
Accessing the OP1 register directly as shown below would be faster, although
its more code.

 ld hl, FPNum
 rst 20h    ; copy 10 bytes from (hl) to OP1
 ret

; OP data for 2.5e-01, which is .25
FPNum:
 .db $00, $FF, $FB, $25, $00, $00, $00, $00, $00, $00

- jeremy goetsch

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