[A83] Re: quick data storage question


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[A83] Re: quick data storage question




ds?  never heard of that one...
----------------------------------------------
Original Message
From: "Harper Maddox"<gte172i@prism.gatech.edu>
Subject: [A83] Re: quick data storage question
Date: Tue, 10 Apr 2001 00:03:14 -0400

>
>At 11:50 PM 4/9/01 -0700, you wrote:
>
>>.db is 16 bit, .dw is 32 bit (2 byte)
>>.dw is used for larger numbers but is harder to work with. If you load a
.dw
>>label into hl you will only be getting the first 16 bits. I wouldn't worry
>>about .dw just use .db .
>>
>>.dw is basicly 2 .dbs it is used for memory locations
>>Someone correct me if I'm wrong, which I might be.
>>
>>-Joe
>
>these identify an area of your program as data.  you can access these 
>references by a label in front of them.
>ex.
>
>getHighScore:
>  ld hl,myHighScore
>  ld a,(hl)                      ; a=99
>
>  ; or you can even do...
>  ld a,(getHighScore)            ; this is legal.  you would get the first 
>byte of the OPCODE "ld hl,XXXX"
>...
>
>myHighScore: .db 99
>
>.db is 1 byte, or 8 bit
>.dw is 2 bytes, or 16 bit
>
>.ds <xxxxx> is xxxxx bytes of space.
>
>
>
>

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