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cc65/libsrc/apple2/sysrename.s

60 lines
1.3 KiB
ArmAsm

;
; Oliver Schmidt, 15.04.2005
;
; unsigned char __fastcall__ _sysrename (const char* oldname, const char* newname);
;
.export __sysrename
.import pushname, popname
.import popax
.include "zeropage.inc"
.include "mli.inc"
__sysrename:
; Save newname
sta ptr2
stx ptr2+1
; Get and push oldname
jsr popax
jsr pushname
bne oserr1
; Save pushed oldname
lda sp
ldx sp+1
sta ptr3
stx ptr3+1
; Restore and push newname
lda ptr2
ldx ptr2+1
jsr pushname
bne oserr2
; Restore and set pushed oldname
lda ptr3
ldx ptr3+1
sta mliparam + MLI::RENAME::PATHNAME
stx mliparam + MLI::RENAME::PATHNAME+1
; Set pushed newname
lda sp
ldx sp+1
sta mliparam + MLI::RENAME::NEW_PATHNAME
stx mliparam + MLI::RENAME::NEW_PATHNAME+1
; Rename file
lda #RENAME_CALL
ldx #RENAME_COUNT
jsr callmli
; Cleanup newname
jsr popname ; Preserves A
; Cleanup oldname
oserr2: jmp popname ; Preserves A
oserr1: rts