A83: Re: Registers
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A83: Re: Registers
This will set the coordinates to row 0, column 0 (upper left hand corner):
ld hl,$0000
ld (currow),hl
This will set the coordinates to row 7, column 15 (bottom right hand corner):
ld hl,$0715
ld (currow),hl
This will change the row to 4:
ld a,4
ld (currow),a
This will change the column to 8:
ld a,8
ld (curcol),a
To "move" a letter across the screen, you could do something like this:
1) initialize coordinates
2) draw character to screen
3) get coord you want to change into a
4) change a however you want
5) store coordinate back into memory
6) go to 2
I hope that answers your questions.
----- Original Message -----
From: "J. D." <grndz3r0@yahoo.com>
To: "Assembly 83" <assembly-83@lists.ticalc.org>
Sent: Wednesday, February 09, 2000 21:46
Subject: A83: Registers
Im trying to write a program where I move a letter
over or up or down, but I cant figure out how to
change the hl so that it will move the currow or
curcol. Can someone please help me
References: