Re: A86: Efficiency Problem

To: assembly-86@lists.ticalc.org
Subject: Re: A86: Efficiency Problem
From: AAmeise@aol.com
Date: Sat, 12 Dec 1998 00:12:15 EST
Delivered-To: assembly-86-outgoing@towerguard.unix.edu.sollentuna.se
Reply-To: assembly-86@lists.ticalc.org

In a message dated 12/10/98 5:53:45 PM Pacific Standard Time,
ZeromusMog@aol.com writes:

> The following is a fragment(?) of code from a game I'm working on called
Nerd
>  Quest I. It's the a part that displays the current weapon on the status
>  screen. It seems to me that this code is incredibly ineffiecient, and
there'
> s
>  gotta be a faster way of doing this. (Perhaps by using that evil call-
> counting
>  thing mentioned earlier?) BTW, if any of you have suggestions for "nerd"
>  weapons, I'd like to hear them! (I'm especially interested in "single-use"
>  type ones, e.g. HCl, Test Tube, Inhaler, Bottle Rocket, etc.)
>  
>  Now, the inefficient code!
>  
>  GameLoop:
>   call CLS ;byte-saving thing
>   ...
>   ...
>   ld a,(Weapon) ;Weapon EQU $F602
>   cp 0
>   call z,Wp1
>   cp 1
>   call z,Wp2
>   cp 2
>   call z,Wp3
>   cp 3
>   call z,Wp4
>   cp 4
>   call z,Wp5
>   cp 5
>   call z,Wp6
>   cp 6
>   call z,Wp7
>   cp 7
>   call z,Wp8
>   cp 8
>   call z,Wp9
>   cp 9
>   call z,Wp10
>   cp 10
>   call z,Wp11
>   cp 11
>   call z,Wp12
>   cp 12
>   call z,Wp13
>   cp 13
>   call z,Wp14
>   cp 14
>   call z,Wp15
>   cp 15
>   call z,Wp16
>   call _puts
>   ...
>   jp Somewhere
>  
>  Wp1:
>   ld hl,W1
>   ret
>  
>  Wp2:
>   ld hl,W2
>   ret
>  
>  Wp3:
>   ld hl,W3
>   ret
>  
>  Wp4:
>   ld hl,W4
>   ret
>  
>  Wp5:
>   ld hl,W5
>   ret
>  
>  Wp6:
>   ld hl,W6
>   ret
>  
>  Wp7:
>   ld hl,W7
>   ret
>  
>  Wp8:
>   ld hl,W8
>   ret
>  
>  Wp9:
>   ld hl,W9
>   ret
>  
>  Wp10:
>   ld hl,W10
>   ret
>  
>  Wp11:
>   ld hl,W11
>   ret
>  
>  Wp12:
>   ld hl,W12
>   ret
>  
>  Wp13:
>   ld hl,W13
>   ret
>  
>  Wp14:
>   ld hl,W14
>   ret
>  
>  Wp15:
>   ld hl,W15
>   ret
>  
>  Wp16:
>   ld hl,W16
>   ret
>  
>  ... ;Whole Lotta Code!
>  
>  ;Data Section
>  W1: .db "AOL Disk",0
>  W2: .db "Pocket Protector",0
>  W3: .db "Uniball Pen",0
>  W4:  .db "Ruler",0
>  W5: .db "Ugly Stick",0
>  W6: .db "Old Game Boy",0
>  W7: .db "Linux Reference Book",0
>  W8: .db "Linux CD",0
>  W9: .db "Cokebottle Glasses",0
>  W10: .db "AP Calc Textbook",0
>  W11: .db "MS Intellimouse",0
>  W12: .db "Macintosh LC",0
>  W13: .db "Overhead Projector",0
>  W14: .db "TI-92+",0
>  W15: .db "486 Motherboard",0
>  W16: .db "Soldering Iron",0

So how come at 
>   cp 0
>   call z,Wp1
you don't put 
>   cp 0
>   call z,.db "AOL Disk",0
Can you do this or do you have to go through all of that?
-Ameise