Re: A86: string decimal -- HL

To: assembly-86@lists.ticalc.org
Subject: Re: A86: string decimal -- HL
From: "Retupmoc 7" <retupmoc7b@hotmail.com>
Date: Sat, 08 Aug 1998 21:12:40 PDT
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org


>Try this (not tested, obviously!):
>
>Str_to_hl:
> ld hl,0		; clear out hl
> ld b,0		; clear high byte
>loop:
> call Read_byte	; get the next byte
> sub 48		; calc num value of the char ('0' = 48)
> cp 10			; is it greater than 9?
> ret nc		; if so, then we're done
> ld c,a		; save value
> sla l			; hl * 2
> rl h			; ...
> ld de,hl		; save hl * 2

had to change this... can't do LD DE,HL

> sla l			; hl * 4
> rl h			; ...
> sla l			; hl * 8
> rl h			; ...
> add hl,de		; (hl * 8) + (hl * 2) = hl * 10
> add hl,bc		; add value
> jr Str_to_hl		; loop through the entire string

oh, and I had to change that jump to Jr loop

>I hope this helps!

This works great! Now I just have to fix the routine that calls it...

If anyone cares to do the hex equivelent for me... :) My routine for it 
is just sooo ugly! hehe

--awwaiid
Retupmoc7@hotmail.com



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Re: A86: string decimal -- HL

From: David Phillips <electrum@tfs.net>