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cc65/libsrc/geos/common/zerobss.s
izydorst 31e4d80ac8 more GEOS Kernal replacements for common/ and runtime/ routines
git-svn-id: svn://svn.cc65.org/cc65/trunk@1833 b7a2c559-68d2-44c3-8de9-860c34a00d81
2002-12-23 20:44:17 +00:00

28 lines
430 B
ArmAsm

;
; Maciej 'YTM/Elysium' Witkowiak <ytm@elysium.pl>
; 23.12.2002
;
; Zero the bss segment.
;
.export zerobss
.import __BSS_RUN__, __BSS_SIZE__
.include "../inc/jumptab.inc"
.include "../inc/geossym.inc"
.code
zerobss:
lda #<__BSS_SIZE__
ldx #>__BSS_SIZE__
sta r0L
stx r0H
lda #0
sta r2L
lda #<__BSS_RUN__
ldx #>__BSS_RUN__
sta r1L
stx r1H
jmp FillRam