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cc65/libsrc/cbm/c_load.s

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;
; Ullrich von Bassewitz, 03.06.1999
;
; unsigned char __fastcall__ cbm_k_load (unsigned char flag, unsigned addr);
;
.include "cbm.inc"
.export _cbm_k_load
.import popa
.importzp ptr1
_cbm_k_load:
sta ptr1
stx ptr1+1
jsr popa ; get flag
ldx ptr1
ldy ptr1+1
jsr LOAD
bcs @NotOk
lda #0
@NotOk: rts