mirror of
https://github.com/forth-ev/VolksForth.git
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307 lines
20 KiB
Plaintext
307 lines
20 KiB
Plaintext
Screen 0 not modified
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0 \ 28 jun 88
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1
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2 DOS loads higher level file functions which go beyond
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3 including a screen file. Calls to MS-DOS are implemented
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4 and used for directory manipulation. These functions may
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5 not work for versions before MS-DOS 3.0.
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6
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Screen 1 not modified
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0 \ MS-DOS file handli cas 09jun20
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1 Onlyforth \needs Assembler 2 loadfrom asm.fb
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2
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3 : fswap isfile@ fromfile @ isfile ! fromfile ! ;
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4
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5 $80 Constant dta
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6
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7 | : COMSPEC ( -- string ) [ dos ]
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8 $2C @ ( DOS-environment:seg) 8 ds@ filename &60 lmove
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9 filename counted &60 min filename place filename ;
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10
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11 1 &12 +thru .( MS-DOS functions loaed ) cr
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12
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13 Onlyforth
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15
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Screen 2 not modified
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0 \ moving blocks ks 04 okt 87
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1
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2 | : full? ( -- flag ) prev BEGIN @ dup @ 0= UNTIL 6 + @ 0< ;
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3
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4 : used? ( blk -- f )
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5 block count b/blk 1- swap skip nip 0<> ;
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6
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7 | : (copy ( from to -- )
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8 full? IF save-buffers THEN isfile@ fromfile @ -
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9 IF dup used? Abort" target block not empty" THEN
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10 dup isfile@ core? IF prev @ emptybuf THEN
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11 isfile@ 0= IF offset @ + THEN
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12 isfile@ rot fromfile @ (block 6 - 2! update ;
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13
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Screen 3 not modified
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0 \ moving blocks ks 04 okt 87
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1
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2 | : blkmove ( from to quan -- ) 3 arguments save-buffers
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3 >r over r@ + over u> >r 2dup u< r> and
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4 IF r@ r@ d+ r> 0 ?DO -1 -2 d+ 2dup (copy LOOP
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5 ELSE r> 0 ?DO 2dup (copy 1 1 d+ LOOP
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6 THEN save-buffers 2drop ;
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7
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8 : copy ( from to -- ) 1 blkmove ;
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9
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10 : convey ( blk1 blk2 to.blk -- )
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11 3 arguments >r 2dup swap - >r
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12 fswap dup capacity 1- > isfile@ 0<> and
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13 fswap r> r@ + capacity 1- > isfile@ 0<> and or >r
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14 1+ over - dup 0> not r> or Abort" nein" r> swap blkmove ;
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15
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Screen 4 not modified
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0 \ MORE extending forth files ks 10 okt 87
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1 Dos also definitions
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2
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3 | : addblock ( blk -- ) dup buffer dup b/blk blank
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4 isfile@ f.size dup 2@ b/blk 0 d+ rot 2!
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5 swap isfile@ fblock! ;
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6
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7 Forth definitions
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8
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9 : more ( n -- ) 1 arguments isfile@
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10 IF capacity swap bounds ?DO I addblock LOOP close exit
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11 THEN drop ;
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12
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13
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Screen 5 not modified
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0 \ file eof? create dta-addressing ks 03 apr 88
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1 Dos definitions
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2
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3 : ftime ( -- mm hh )
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4 isfile@ f.time @ $20 u/mod nip $40 u/mod ;
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5
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6 : fdate ( -- dd mm yy )
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7 isfile@ f.date @ $20 u/mod $10 u/mod &80 + ;
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8
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9 : .when base push decimal
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10 fdate rot 3 .r ." ." swap 2 .r ." ." 2 .r
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11 ftime 3 .r ." :" 2 .r ;
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12
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Screen 6 not modified
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0 \ ks 20mar88
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1
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2 : (.fcb ( fcb -- )
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3 dup .file ?dup 0=exit pushfile
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4 isfile ! &13 tab ." is"
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5 isfile@ f.handle @ 2 .r
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6 isfile@ f.size 2@ 7 d.r .when
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7 space isfile@ f.name count type ;
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8
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9 Forth definitions
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10
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11 : files file-link
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12 BEGIN @ dup WHILE cr dup (.fcb stop? UNTIL drop ;
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13
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14 : ?file isfile@ (.fcb ;
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15
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Screen 7 not modified
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0 \ dir make makefile ks 25 okt 87
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1 Forth definitions
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2
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3 : killfile close
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4 isfile@ f.name filename >asciz ~unlink drop ;
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5
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6 : emptyfile isfile@ 0=exit
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7 isfile@ f.name filename >asciz 0 ~creat ?diskerror
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8 isfile@ f.handle ! isfile@ f.size 4 erase ;
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9
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10 : make close name isfile@ fname! emptyfile ;
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11
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12 : makefile File last @ name> execute emptyfile ;
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13
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Screen 8 not modified
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0 \ getpath ks 10 okt 87
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1 Dos definitions
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2
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3 | &40 Constant pathlen
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4 | Create pathes 0 c, pathlen allot
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5
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6 | : (setpath ( string -- ) count
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7 dup pathlen u> Abort" path too long" pathes place ;
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8
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9 | : getpath ( +n -- string / ff )
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10 >r 0 pathes count r> 0
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11 DO rot drop Ascii ; skip stash Ascii ; scan LOOP
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12 drop over - ?dup
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13 IF here place here dup count + 1- c@
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14 ?" :\" ?exit Ascii \ here append exit
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15 THEN 0= ;
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Screen 9 not modified
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0 \ pathsearch .path path ks 09 okt 87
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1
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2 : pathsearch ( string -- asciz *f ) dup >r
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3 (fsearch dup 0= IF rdrop exit THEN 2drop 0 0
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4 BEGIN drop 1+ dup getpath ?dup 0=
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5 IF drop r> filename >asciz 2 exit THEN
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6 r@ count 2 pick attach (fsearch
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7 0= UNTIL nip rdrop false ;
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8
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9 ' pathsearch Is fsearch
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10
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11 Forth definitions
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12
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13 : .path pathes count type ;
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14
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15 : path name nullstring? IF .path exit THEN (setpath ;
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Screen 10 not modified
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0 \ call another executable file ks 04 aug 87
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1 Dos definitions
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2
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3 | Create cpb 0 , \ inherit parent environment
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4 dta , ds@ , $5C , ds@ , $6C , ds@ , Label ssave 0 ,
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5
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6 | Code ~exec ( asciz -- *f )
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7 I push R push U push S ssave #) mov cpb # R mov
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8 $4B00 # A mov $21 int C: D mov D D: mov D S: mov
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9 D E: mov ssave #) S mov CS not
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10 ?[ A A xor A push $2F # A+ mov $21 int E: A mov
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11 A D: mov C: A mov A E: mov R I mov dta # W mov
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12 $40 # C mov rep movs A D: mov A pop
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13 ]? A W xchg dta # D mov $1A # A+ mov $21 int
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14 W D mov U pop R pop I pop Next
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15 end-code
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Screen 11 not modified
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0 \ calling MS-DOS thru forth interpreter ks 19 mr 88
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1
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2 | : execute? ( extension -- *f )
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3 count filename count Ascii . scan drop swap
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4 2dup 1+ erase move filename 1+ ~exec ;
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5
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6 : fcall ( string -- ) count filename place ds@ cpb 4+ !
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7 " .EXE" execute? dup IF drop " .COM" execute? THEN
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8 ?diskerror ;
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9
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10 : fdos ( string -- )
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11 dta $80 erase " /c " count dta place count dta attach
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12 status push status off .status COMSPEC fcall curat? at ;
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13
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Screen 12 not modified
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0 \ einige MS-DOS Funktionen msdos call ks 10 okt 87
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1
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2 : dos: Create ," Does> count here place
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3 Ascii " parse here attach here fdos ;
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4
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5 Forth definitions
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6
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7 dos: dir dir "
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8 dos: ren ren "
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9 dos: md md "
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10 dos: cd cd "
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11 dos: rd rd "
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12 dos: fcopy copy "
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13 dos: delete del "
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14 dos: ftype type "
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15
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Screen 13 not modified
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0 \ msdos call ks 23 okt 88
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1
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2 : msdos savevideo status push status off .status
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3 flush dta off COMSPEC fcall restorevideo ;
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4
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5 : call name source >in @ /string c/l umin
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6 dta place dta dta >asciz drop [compile] \
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7 status push status off .status fcall curat? at ;
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Screen 14 not modified
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0 \ time date ks 19 mr 88
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1 Dos definitions
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2
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3 : ftime ( -- mm hh )
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4 open isfile@ f.time @ $20 u/mod nip $40 u/mod ;
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5
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6 : fdate ( -- dd mm yy )
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7 open isfile@ f.date @ $20 u/mod $10 u/mod &80 + ;
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Screen 15 not modified
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0 \ ~lseek position? ks 10 okt 87
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1 Dos definitions
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2
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3 Code ~lseek ( d handle method -- d' )
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4 R W mov D A mov R pop C pop D pop
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5 $42 # A+ mov $21 int W R mov CS not
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6 ?[ A push Next ]? A D xchg ;c: ?diskerror ;
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7
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8 Forth definitions
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9
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10 : position? ( -- dfaddr )
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11 isfile@ f.handle @ 0= Abort" file not open"
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12 0 0 isfile@ f.handle @ 1 ~lseek ;
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Screen 16 not modified
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Screen 17 not modified
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