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cc65/libsrc/cbm/c_save.s
uz 4c4071b34a Fixed an error in cbm_k_save (on which cbm_save is based): The X register was
not cleared on return.


git-svn-id: svn://svn.cc65.org/cc65/trunk@4048 b7a2c559-68d2-44c3-8de9-860c34a00d81
2009-08-23 21:38:11 +00:00

27 lines
607 B
ArmAsm

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