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24 lines
517 B
ArmAsm
24 lines
517 B
ArmAsm
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; Christian Groessler, October 2000
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; this file provides the _dio_write function
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; unsigned char __fastcall__ _dio_write(_dhandle_t handle,_sectnum_t sect_num,const void *buffer);
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; _dhandle_t - 16bit (ptr)
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; _sectnum_t - 16bit
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;
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.import __sio_call,pushax
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.export __dio_write
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.include "atari.inc"
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.proc __dio_write
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jsr pushax ; push buffer address
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ldx #%10000000 ; indicate i/o direction (write)
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lda #SIO_WRITE ; write sector command
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jmp __sio_call ; do the call and return to the user
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.endproc
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