git.sur5r.net Git - cc65/blob - libsrc/nes/setcursor.s

   1 ;
   2 ; Written by Groepaz/Hitmen <groepaz@gmx.net>
   3 ; Cleanup by Ullrich von Bassewitz <uz@cc65.org>
   4 ;
   5 ; Set the cursor position
   6
   7         .export         setcursor
   8
   9         .include        "nes.inc"
  10
  11 ;-----------------------------------------------------------------------------
  12
  13 .proc   setcursor
  14
  15         tya
  16         clc
  17         adc     addrlo,x
  18         sta     SCREEN_PTR
  19
  20         lda     addrhi,x
  21         adc     #0
  22         sta     SCREEN_PTR+1
  23         rts
  24
  25 .endproc
  26
  27 ;-----------------------------------------------------------------------------
  28 ; Tables with screen addresses
  29
  30 addrlo: .repeat screenrows,line
  31         .byte <($2000+((1*32))+(line*charsperline))
  32         .endrepeat
  33
  34 addrhi: .repeat screenrows,line
  35         .byte >($2000+((1*32))+(line*charsperline))
  36         .endrepeat
  37