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cc65/libsrc/atari/diowritev.s

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