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cc65/libsrc/cbm/c_save.s

26 lines
589 B
ArmAsm

;
; Marc 'BlackJack' Rintsch, 11.06.1999
;
; unsigned char __fastcall__ cbm_k_save(unsigned int start, unsigned int end);
;
.include "cbm.inc"
.export _cbm_k_save
.import popptr1
.importzp ptr1, tmp1
_cbm_k_save:
sta tmp1 ; store end address
stx tmp1+1
jsr popptr1 ; pop start address
lda #ptr1
ldx tmp1
ldy tmp1+1
jsr SAVE
ldx #0 ; Clear high byte
bcs @NotOk
txa
@NotOk: rts