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added missing parameters to GetFile and SaveFile functions

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git-svn-id: svn://svn.cc65.org/cc65/trunk@2068 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
izydorst 2003-04-17 16:22:17 +00:00
parent 64c0bcb9ca
commit 2cba160622
4 changed files with 19 additions and 12 deletions
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14
doc/geos.sgml
View File

@ -890,14 +890,14 @@ starting track and sector which may point either to start of a chain for VLIR or
<sect3>GetFile
<p>
<tt/char __fastcall__ GetFile(char flag, const char *fname, const char *loadaddr, const char *datadname, char *datafname)/
<tt/char __fastcall__ GetFile(char saveflag, char loadflag, const char *fname, const char *loadaddr, const char *datadname, char *datafname)/
<p>
This routine loads and runs a given file <tt/fname/. The file must be one of following types:
<tt/SYSTEM, DESK_ACC, APPLICATION, APPL_DATA, PRINTER,/ or <tt/INPUT_DEVICE/. The execution
address is taken from file header. It is zero, then file is only loaded. Only the first chain
from VLIR files is loaded. If <tt/flag/ has bit 0 set then load address is taken from <tt/loadaddr/
from VLIR files is loaded. If <tt/loadflag/ has bit 0 set then load address is taken from <tt/loadaddr/
and not from file header. In this case <tt/APPLICATION/ files will be only loaded, not executed.
This does not apply to <tt/DESK_ACC/. If either bit 6 or 7 of <tt/flag/ are set, then 16 bytes from
This does not apply to <tt/DESK_ACC/. If either bit 6 or 7 of <tt/loadflag/ are set, then 16 bytes from
<tt/datadname/ is copied to <tt/dataDiskName/ and 16 bytes from <tt/datafname/ goes to <tt/dataFileName/
in system case. If you don't use it it is safe to pass <tt/NULL/ to this function.
@ -925,17 +925,19 @@ returned value is invalid.
<sect3>SaveFile
<p>
<tt/char SaveFile (struct fileheader *myHeader)/
<tt/char SaveFile (char skip, struct fileheader *myHeader)/
<p>
<tt/SaveFile/ will take care of everything needed to create a GEOS file, no matter VLIR of SEQ
structure. All you need to do is to place data in proper place and prepare a header which will
contain all information about a file.
contain all information about a file. The <tt/skip/ parameter says how many directory pages you
want to skip before searching for a free slot for directory entry. In most cases you will put
<tt/0/ there.
You have to declare a <tt/struct fileheader/ and fill it with proper values. There is only one
difference - the first two bytes which are link to nonexistant next sector are replaced by a
pointer to the DOS filename of the file.
When saving files two most important fields in <tt/struct fileheader/ are <tt/fileheader.load_address/
When saving sequential files two most important fields in <tt/struct fileheader/ are <tt/fileheader.load_address/
and <tt/fileheader.end_address/.
<sect3>FreeFile

6
include/geos/gfile.h
View File

@ -17,11 +17,11 @@ struct filehandle *__fastcall__ GetNxtDirEntry(void);
char __fastcall__ FindFTypes(char *buffer, char ftype, char fmaxnum, const char *classtxt);
char __fastcall__ GetFile(char flag, const char *fname, const char *loadaddr,
const char *datadname, char *datafname);
char __fastcall__ GetFile(char saveflag, char loadflag, const char *fname,
const char *loadaddr, const char *datadname, char *datafname);
char __fastcall__ FindFile(const char *fname);
char __fastcall__ ReadFile(struct tr_se *myTrSe, char *buffer, unsigned flength);
char __fastcall__ SaveFile(struct fileheader *myHeader);
char __fastcall__ SaveFile(char skip, struct fileheader *myHeader);
char __fastcall__ FreeFile(struct tr_se myTable[]);
char __fastcall__ DeleteFile(const char *fname);
char __fastcall__ RenameFile(const char *source, const char *target);

4
libsrc/geos/file/getfile.s
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@ -4,7 +4,7 @@
;
; 4.4.2003
; char __fastcall__ GetFile(char flag, const char *fname, const char *loadaddr, const char *datadname, char *datafname);
; char __fastcall__ GetFile(char saveflag, char loadflag, const char *fname, const char *loadaddr, const char *datadname, char *datafname);
.export _GetFile
.import popa, popax, setoserror
@ -26,5 +26,7 @@ _GetFile:
stx r6H
jsr popa
sta r0L
jsr popa
sta r10L
jsr GetFile
jmp setoserror

5
libsrc/geos/file/savefile.s
View File

@ -4,9 +4,10 @@
;
; 25.12.1999, 2.1.2003
; char SaveFile (struct fileheader *myHeader);
; char SaveFile (char skip, struct fileheader *myHeader);
.import setoserror
.import popa
.export _SaveFile
.include "../inc/jumptab.inc"
@ -15,5 +16,7 @@
_SaveFile:
sta r9L
stx r9H
jsr popa
sta r10L
jsr SaveFile
jmp setoserror