Re: A86: Reading The Array

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Reading The Array
From: "UnEven Software" <uneven14@hotmail.com>
Date: Sun, 04 Oct 1998 17:38:03 CDT
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org




>Date: Sun, 04 Oct 1998 15:08:55 -0700
>To: assembly-86@lists.ticalc.org
>From: Dave VanEe <dvanee@dowco.com>
>Subject: Re: A86: Reading The Array
>Reply-To: assembly-86@lists.ticalc.org
>
>
>I'm pretty sure this is working somewhat...but what is the output of
>Get_Coords? (if you make it a call, add a 'ret' to the end, and load bc
>before calling it)
>
>Dave
>
>>;lets pretend your array is like a graph
>>;you pick the x and y coords of where you wanna read assuming this is 
>>;the grid~~~>  0,0 +---------+ 40,0
>>;                  |         |
>>;                  |         |
>>;                  |         |
>>;              0,24+---------+40,24 
>>;I think thats right anways you get the idea I hope
>>;b=the "x" and c=the "y" of the spot you wanna read
>>;also hl=area of you array
>>;and (array) is your actual array's label (if that makes sense)
>>
>>Get_Coords:  ;this can also be some kinda input routine if you want
>>             ;it to get somewhere the users says
>> ld b,4 ;x
>> ld c,5 ;y
>> ld d,b ;saved x
>> ld e,c ;saved y
>> ld b,c ;get y into b so I can use djnz to recurse
>>
>>Find_Array:
>> ld hl,Array  ;we need to know where the array is
>>
>>Get_Y_Of_Array:
>> inc hl  ;move down a .db
>> djnz Get_Y_Of_Array  ;repeat until we're at our .db
>>
>>Init_Get_X_Of_Array:
>> ld b,d  ;get x back into b so we can recurse again
>>
>>Get_X_Of_Array:
>> ld hl,(Array+1)  ;move over a cell
>> djnz Get_X_Of_Array   ;repeat until until we're at our spot
>>
>>
>>Matt
>
>
>


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