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30 lines
536 B
ArmAsm
30 lines
536 B
ArmAsm
;
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; int __fastcall__ write (int fd, const void* buf, unsigned count);
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;
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.include "atari.inc"
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.import __rwsetup,__do_oserror,__inviocb,__oserror
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.export _write
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_write:
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jsr __rwsetup ; do common setup
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beq write9 ; if size 0, it's a no-op
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cpx #$FF ; invalid iocb?
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beq _inviocb
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lda #PUTCHR
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sta ICCOM,x
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jsr CIOV
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bpl write9
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jmp __do_oserror ; update errno
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write9:
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lda ICBLL,x ; get buf len lo
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pha
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lda ICBLH,x ; buf len hi
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tax
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lda #0
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sta __oserror ; clear system dependend error code
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pla
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rts
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_inviocb:
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jmp __inviocb
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