42 lines
719 B
ArmAsm
42 lines
719 B
ArmAsm
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; Oliver Schmidt, 17.04.2005
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;
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; unsigned char __fastcall__ _syschdir (const char* name);
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;
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.export __syschdir
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.import pushname, popname
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.import __cwd
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.include "zeropage.inc"
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.include "mli.inc"
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__syschdir:
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; Push name
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jsr pushname
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bne oserr
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; Set pushed name
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lda sp
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ldx sp+1
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sta mliparam + MLI::PREFIX::PATHNAME
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stx mliparam + MLI::PREFIX::PATHNAME+1
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; Change directory
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lda #SET_PREFIX_CALL
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ldx #PREFIX_COUNT
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jsr callmli
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bcs cleanup
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ldy #$01
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: lda (sp),y
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sta __cwd-1,y
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beq cleanup
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iny
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bne :- ; Branch always
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; Cleanup name
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cleanup:jsr popname ; Preserves A
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oserr: rts
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