git.sur5r.net Git - cc65/blob - libsrc/geos/common/zerobss.s

   1 ;
   2 ; Maciej 'YTM/Elysium' Witkowiak <ytm@elysium.pl>
   3 ; 23.12.2002
   4 ;
   5 ; Zero the bss segment.
   6 ;
   7
   8         .export         zerobss
   9         .import         __BSS_RUN__, __BSS_SIZE__
  10
  11         .include "../inc/jumptab.inc"
  12         .include "../inc/geossym.inc"
  13
  14 .code
  15
  16 zerobss:
  17             lda #<__BSS_SIZE__
  18             ldx #>__BSS_SIZE__
  19             sta r0L
  20             stx r0H
  21             lda #<__BSS_RUN__
  22             ldx #>__BSS_RUN__
  23             sta r1L
  24             stx r1H
  25             jmp ClearRam