VolksForth/sources/cpm/fileint.fth
2020-07-20 23:47:02 +02:00

545 lines
34 KiB
Forth

\ *** Block No. 0 Hexblock 0
\ CP/M 2.2 File-Interface (3.80a) UH 05Oct87
Dieses File enthaelt das File-Interface von volksFORTH zu CP/M.
Damit ist Zugriff auf normale CP/M-Files moeglich.
Wenn ein File mit USE benutzt wird, beziehen sich alle Worte,
die mit dem Massenspeicher arbeiten, auf dieses File.
Benutzung:
USE <name> \ benutze ein schon existierendes File
FILE <name> \ erzeuge ein Forthfile mit dem Namen <name>.
MAKE <name> \ Erzeuge ein File mit <name> und ordne
\ es dem aktuellen Forthfile zu.
MAKEFILE <name> \ Erzeuge ein File mit CP/M und FORTH-Namen
<name>.
INCLUDE <name> \ Lade File mit Forthnamen <name> ab Screen 1
DOS RESET \ zum Wechsel von Disketten. (Oh! CP/M)
\ *** Block No. 1 Hexblock 1
\ CP/M 2.2 File-Interface load-Screen UH 18Feb88
OnlyForth
2 load \ view numbers for this file
3 4 thru \ DOS File Functions
5 $11 thru \ Forth File Functions
$12 $16 thru \ User Interface
File source.fb \ Define already existing Files
File fileint.fb File startup.fbr
' (makeview Is makeview
' remove-files Is custom-remove
' file-r/w Is r/w
' noop Is drvinit
\ include startup.fb \ load Standard System
\ *** Block No. 2 Hexblock 2
\ Build correct view-numbers for this file UUH 19Nov87
| : fileintview ( -- ) $400 blk @ + ;
' fileintview Is makeview
\ *** Block No. 3 Hexblock 3
\ File Control Blocks UH 18Feb88
Dos definitions also
| : Fcbyte ( n len -- len' ) Create over c, + does> c@ + ;
&11 Constant filenamelen
0 2 | Fcbyte nextfile immediate
1 Fcbyte drive ' drive | Alias >dosfcb
filenamelen 3 - Fcbyte filename
3 Fcbyte extension
&21 + \ ex, s1, s2, rc, d0, ... dn, cr
2 Fcbyte record \ r0, r1
1+ \ r2
2 Fcbyte opened
2 Fcbyte fileno
2 Fcbyte filesize \ in 128-Byte-Records
4 Fcbyte position
Constant b/fcb
\ *** Block No. 4 Hexblock 4
\ dos primitives UH 10Oct87
' 2- | Alias body> ' 2- | Alias dosfcb>
: drive! ( drv -- ) $0E bdos ;
: search0 ( dosfcb -- dir ) $11 bdosa ;
: searchnext ( dosfcb -- dir ) $12 bdosa ;
: read-seq ( dosfcb -- f ) $14 bdosa dos-error? ;
: write-seq ( dosfcb -- f ) $15 bdosa dos-error? ;
: createfile ( dosfcb -- f ) $16 bdosa dos-error? ;
: size ( dos -- size ) dup $23 bdos dosfcb> record @ ;
: drive@ ( -- drv ) 0 $19 bdosa ;
: killfile ( dosfcb -- ) $13 bdos ;
\ *** Block No. 5 Hexblock 5
\ File sizes UH 05Oct87
: (capacity ( fcb -- n ) \ filecapacity in blocks
filesize @ rec/blk u/mod swap 0= ?exit 1+ ;
: in-range ( block fcb -- )
(capacity u< not Abort" beyond capacity!" ;
Forth definitions
: capacity ( -- n ) isfile@ (capacity ;
Dos definitions
\ *** Block No. 6 Hexblock 6
\ (open UH 18Feb88
: (open ( fcb -- )
dup opened @ IF drop exit THEN dup position 0. rot 2!
dup >dosfcb openfile Abort" not found!" dup opened on
dup >dosfcb size swap filesize ! ;
: (make ( fcb -- )
dup >dosfcb killfile
dup >dosfcb createfile Abort" directory full!"
dup position 0. rot 2!
dup filesize off opened on offset off ;
: file-r/w ( buffer block fcb f -- f )
over 0= Abort" no Direct Disk IO supported! "
>r dup (open 2dup in-range r> (r/w ;
\ *** Block No. 7 Hexblock 7
\ Print Filenames UH 10Oct87
: .file ( fcb -- ) 0 case? IF ." DIRECT" exit THEN
fcb dosfcb> case? IF ." DEFAULT" exit THEN
body> >name .name ;
: .drive ( fcb -- ) drive c@ ?dup 0=exit
[ Ascii A 1- ] Literal + emit Ascii : emit ;
: .dosfile ( fcb -- ) dup filename 8 -trailing type
Ascii . emit extension 3 type ;
\ *** Block No. 8 Hexblock 8
\ Print Filenames UH 10Oct87
: tab ( -- ) col &59 > IF cr exit THEN
&20 col &20 mod - 0 max spaces ;
: .fcb ( fcb -- ) dup fileno @ 3 u.r tab
dup .file tab dup .drive dup .dosfile
tab dup opened @ IF ." opened" ELSE ." closed" THEN
3 spaces base push decimal (capacity 3 u.r ." kB" ;
\ *** Block No. 9 Hexblock 9
\ Filenames UH 05Oct87
: !name ( addr len fcb -- )
dup >r filename filenamelen bl fill
over 1+ c@ Ascii : =
IF over c@ [ Ascii A 1- ] Literal - >r 2 /string r>
ELSE 0 THEN r@ drive c! r> dup filename 2swap
filenamelen 1+ min bounds
?DO I c@ Ascii . =
IF drop dup extension ELSE I c@ over c! 1+ THEN
LOOP 2drop ;
: !fcb ( fcb -- ) dup opened off name count rot !name ;
\ *** Block No. 10 Hexblock A
\ Print Directory UH 18Nov87
| Create dirbuf b/rec allot dirbuf b/rec erase
| Create fcb0 b/fcb allot fcb0 b/fcb erase
| : wildchard? ( f c -- f' ) Ascii * = IF drop Ascii ? THEN ;
| : (expand ( addr len -- ) false -rot bounds
?DO I c@ wildchard? dup ?dup IF I c! THEN LOOP drop ;
| : expand ( fcb -- ) \ expand * to ???
dup filename 8 (expand extension 3 (expand ;
: (dir ( addr len -- )
fcb0 !name fcb0 expand dirbuf dma! fcb0 >dosfcb search0
BEGIN dup dos-error? not
WHILE $20 * dirbuf + dosfcb> tab .dosfile
fcb0 >dosfcb searchnext stop? UNTIL drop ;
\ *** Block No. 11 Hexblock B
\ File List UH 10Oct87
User file-link file-link off
| : #file ( -- n ) file-link @ dup IF fileno c@ THEN 1+ ;
Forth definitions
: forthfiles ( -- )
file-link @
BEGIN dup WHILE cr dup .fcb @ stop? UNTIL drop ;
Dos definitions
\ *** Block No. 12 Hexblock C
\ Close a file UH 10Oct87
' save-buffers >body $0C + @ | Alias backup
| : filebuffer? ( fcb -- fcb bufaddr/flag )
prev BEGIN @ dup WHILE 2dup 2+ @ = UNTIL ;
| : flushfile ( fcb -- ) \ flush file buffers
BEGIN filebuffer? ?dup WHILE
dup backup emptybuf REPEAT drop ;
: (close ( fcb -- ) \ close file in fcb
dup flushfile
dup opened dup @ 0= IF 2drop exit THEN off
>dosfcb closefile Abort" not found!" ;
\ *** Block No. 13 Hexblock D
\ Create fcbs UH 10Oct87
: !files ( fcb -- ) dup isfile ! fromfile ! ;
' r@ | Alias newfcb
Forth definitions
: File ( -- )
Create here >r b/fcb allot newfcb b/fcb erase
last @ count $1F and newfcb !name
#file newfcb fileno !
file-link @ newfcb nextfile ! r> file-link !
Does> !files ;
: direct 0 !files ;
\ *** Block No. 14 Hexblock E
\ flush buffers & misc. UH 10Oct87 UH 28Nov87
Dos definitions
: save-files ( -- ) file-link BEGIN @ ?dup WHILE
dup opened @ IF dup >dosfcb closefile drop THEN REPEAT ;
' save-files Is save-dos-buffers
\ : close-files ( -- ) file-link
\ BEGIN @ ?dup WHILE dup (close REPEAT ;
Forth definitions
: file? isfile@ .file ; \ print current file
: list ( n -- ) 3 spaces file? list ;
\ *** Block No. 15 Hexblock F
\ words for viewing UH 10Oct87
Forth definitions
| $200 Constant viewoffset \ max. %512 kB files
: (makeview ( -- n ) \ calc. view filed for a name
blk @ dup 0= ?exit
loadfile @ ?dup IF fileno @ viewoffset * + THEN ;
: (view ( blk -- blk' ) \ select file and leave block
dup 0=exit
viewoffset u/mod file-link
BEGIN @ dup WHILE 2dup fileno @ = UNTIL
!files drop ; \ not found: direct access
\ *** Block No. 16 Hexblock 10
\ FORGETing files UH 10Oct87
| : remove? ( dic symb addr -- dic symb addr f )
dup heap? IF 2dup u> exit THEN 2 pick over 1+ u< ;
| : remove-files ( dic symb -- dic symb ) \ flush files !
isfile@ remove? nip IF direct THEN
fromfile @ remove? nip IF fromfile off THEN
file-link
BEGIN @ ?dup WHILE remove? IF dup (close THEN REPEAT
file-link remove ;
\ *** Block No. 17 Hexblock 11
\ print a list of all buffers UH 20Oct86
: .buffers
prev BEGIN @ ?dup WHILE stop? abort" stopped"
cr dup u. dup 2+ @ dup 1+
IF ." Block: " over 4+ @ 5 .r
." File : " [ Dos ] .file
dup 6 + @ 0< IF ." updated" THEN
ELSE ." Buffer empty" drop THEN REPEAT ;
\ *** Block No. 18 Hexblock 12
\ File Interface User words UH 11Oct87
| : same ( addr -- ) >in ! ;
: open isfile@ (open offset off ;
: close isfile@ (close ;
: assign close isfile@ !fcb open ;
: make isfile@ dup !fcb (make ;
| : isfile? ( addr -- addr f ) \ is adr a fcb?
file-link BEGIN @ dup 0=exit 2dup body> = UNTIL drop true ;
: use >in @ name find \ create a fcb if not present
IF isfile? IF execute drop exit THEN THEN drop
dup same File same ' execute open ;
\ *** Block No. 19 Hexblock 13
\ File Interface User words UH 25May88
: makefile >in @ File dup same ' execute same make ;
: emptyfile isfile@ >dosfcb createfile ;
: from isfile push use ;
: loadfrom ( n -- )
isfile push fromfile push use load close ;
: include 1 loadfrom ;
: eof ( -- f ) isfile@ dup filesize @ swap record @ = ;
: files " *.*" count (dir ;
: files" Ascii " word count 2dup upper (dir ;
' files Alias dir ' files" Alias dir"
\ *** Block No. 20 Hexblock 14
\ extend Files UH 20Nov87
| : >fileend isfile@ >dosfcb size drop ;
| : addblock ( n -- ) \ add block n to file
dup buffer under b/blk bl fill
isfile@ rec/blk over filesize +! false file-r/w
IF close Abort" disk full!" THEN ;
: more ( n -- ) open >fileend
capacity swap bounds ?DO I addblock LOOP close
open close ;
: Drive: ( n -- n' ) dup Constant 1+ Does> @ drive! ;
0 Drive: a: Drive: b: Drive: c: Drive: d:
5 + Drive: j: drop
\ *** Block No. 21 Hexblock 15
\ save memory-image as disk-file UH 29Nov86
Forth definitions
: savefile ( from count -- ) \ filename
isfile push makefile bounds
?DO I dma! isfile@ >dosfcb write-seq Abort" disk full!"
b/rec +LOOP close ;
\ *** Block No. 22 Hexblock 16
\ Status UH 10OCt87
: .blk ( -- ) blk @ ?dup 0=exit
dup 1 = IF cr file? THEN base push hex ." Blk " . ?cr ;
' .blk Is .status
\ *** Block No. 23 Hexblock 17
\ *** Block No. 24 Hexblock 18
\ *** Block No. 25 Hexblock 19
\ *** Block No. 26 Hexblock 1A
\ *** Block No. 27 Hexblock 1B
\ *** Block No. 28 Hexblock 1C
\ *** Block No. 29 Hexblock 1D
\ *** Block No. 30 Hexblock 1E
\ *** Block No. 31 Hexblock 1F