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50 lines
958 B
ArmAsm
50 lines
958 B
ArmAsm
;
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; Ullrich von Bassewitz, 22.11.2002
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;
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; FILE* __fastcall__ fopen (const char* name, const char* mode)
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; /* Open a file */
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;
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.export _fopen
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.import __fopen, __fdesc
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.import pushax, return0
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.include "errno.inc"
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; ------------------------------------------------------------------------
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; Code
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.proc _fopen
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; Bring the mode parameter on the stack
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jsr pushax
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; Allocate a new file stream
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jsr __fdesc
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; Check if we have a stream
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cmp #$00
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bne @L1
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cpx #$00
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bne @L1
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; Failed to allocate a file stream
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lda #EMFILE
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jsr __seterrno ; Set __errno, will return 0 in A
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tax
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rts ; Return zero
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; Open the file and return the file descriptor. All arguments are already
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; in place: name and mode on the stack, and f in a/x
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@L1: jmp __fopen
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.endproc
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