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added explanation of return codes

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git-svn-id: svn://svn.cc65.org/cc65/trunk@437 b7a2c559-68d2-44c3-8de9-860c34a00d81
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cpg 2000-11-16 21:42:38 +00:00
parent e9a67d0abd
commit 94c6fb5c4b
1 changed files with 6 additions and 1 deletions
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7
include/dio.h
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@ -54,35 +54,40 @@ extern dhandle_t __fastcall__ dio_open(driveid_t drive_id);
/* open drive for subsequent dio access */
extern unsigned char __fastcall__ dio_close(dhandle_t handle);
/* close drive */
/* close drive, returns oserror (0 for success) */
extern unsigned char __fastcall__ dio_read(dhandle_t handle,
sectnum_t sect_num,
void *buffer);
/* read sector <sect_num> from drive <handle> to memory at <buffer> */
/* the number of bytes transferred depends on the sector size */
/* returns oserror (0 for success) */
extern unsigned char __fastcall__ dio_write(dhandle_t handle,
sectnum_t sect_num,
const void *buffer);
/* write memory at <buffer> to sector <sect_num> on drive <handle>, no verify */
/* the number of bytes transferred depends on the sector size */
/* returns oserror (0 for success) */
extern unsigned char __fastcall__ dio_write_verify(dhandle_t handle,
sectnum_t sect_num,
const void *buffer);
/* write memory at <buffer> to sector <sect_num> on drive <handle>, verify after write */
/* the number of bytes transferred depends on the sector size */
/* returns oserror (0 for success) */
extern unsigned char __fastcall__ dio_phys_to_log(dhandle_t handle,
const dio_phys_pos *physpos, /* input */
sectnum_t *sectnum); /* output */
/* convert physical sector address (head/track/sector) to logical sector number */
/* returns oserror (0 for success) */
extern unsigned char __fastcall__ dio_log_to_phys(dhandle_t handle,
const sectnum_t *sectnum, /* input */
dio_phys_pos *physpos); /* output */
/* convert logical sector number to physical sector address (head/track/sector) */
/* returns oserror (0 for success) */
#endif /* #ifndef _DIO_H */