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cc65/libsrc/atari7800/clrscr.s
2022-04-19 20:01:47 +03:00

28 lines
589 B
ArmAsm

.include "atari7800.inc"
.export _clrscr
.import _screen
.import pushax, __bzero
.include "extzp.inc"
.code
.proc _clrscr
lda #<_screen
ldx #>_screen
jsr pushax
ldx #>(charsperline * screenrows)
lda #<(charsperline * screenrows)
jmp __bzero
.endproc
;-------------------------------------------------------------------------------
; force the init constructor to be imported
.import initconio
conio_init = initconio