VolksForth/8086/msdos/dos.fb

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