Screen 0 not modified 0 1 This video display interface utilizes the ROM BIOS call $10. 2 The display is fairly fast and should work on most IBM 3 compatible computers 4 5 6 7 8 9 10 11 12 13 14 15 Screen 1 not modified 0 \ BIOS display interface ks 1 secas 09jun20 1 Onlyforth \needs Assembler 2 loadfrom asm.fb 2 Variable dpage dpage off 3 Variable top top off 4 5 Code (at ( lin col -- ) A pop R push U push 6 dpage #) R+ mov A- D+ mov 2 # A+ mov $10 int 7 U pop R pop D pop Next end-code 8 9 Code (at? ( -- lin col ) D push R push U push 10 dpage #) R+ mov 3 # A+ mov $10 int U pop R pop 11 D+ A- mov 0 # A+ mov A+ D+ mov A push Next 12 end-code 13 14 1 6 +thru .( BIOS display interface active) cr 15 Screen 2 not modified 0 \ BIOS normal invers blankline ks 1 sep 86 1 : full top off ; 2 3 Variable attribut 7 attribut ! 4 5 : normal 7 attribut ! ; : invers $70 attribut ! ; 6 : underline 1 attribut ! ; : bright $F attribut ! ; 7 8 Code blankline D push R push U push 9 dpage #) R+ mov attribut #) R- mov 10 3 # A+ mov $10 int ' c/row >body #) C mov 11 D- C- sub bl # A- mov 9 # A+ mov $10 int 12 U pop R pop D pop Next end-code 13 14 | : lineerase 0 (at blankline ; 15 Screen 3 not modified 0 \ curshape setpage curat? ks 8 mar 88 1 2 Code curshape ( top bot -- ) D C mov D pop 3 D- C+ mov 1 # A+ mov $10 int D pop Next 4 end-code 5 6 Code setpage ( n -- ) 7 $503 # A mov D- A- and $10 int D pop Next 8 end-code 9 10 ' (at? Alias curat? 11 12 13 14 15 Screen 4 not modified 0 \ BIOS (type (emit ks 1 sep 86 1 2 Code (type ( addr len -- ) W pop R push U push 3 D U mov dpage #) R+ mov attribut #) R- mov 4 3 # A+ mov $10 int U inc C push $E0E # C mov 5 1 # A+ mov $10 int 1 # C mov [[ U dec 0= not 6 ?[[ D- inc ' c/row >body #) D- cmp 0= not 7 ?[[ W ) A- mov W inc 9 # A+ mov 8 $10 int 2 # A+ mov $10 int ]]? 9 ]? C pop 1 # A+ mov $10 int 10 U pop R pop D pop ' pause #) jmp 11 end-code 12 13 : (emit ( char -- ) sp@ 1 (type drop ; 14 15 Screen 5 not modified 0 \ BIOS (del scroll (cr (page ks 2 sep 86 1 2 : (del (at? ?dup 3 IF 1- 2dup (at bl (emit (at exit THEN drop ; 4 5 Code scroll D push R push U push attribut #) R+ mov 6 top #) C+ mov 0 # C- mov ' c/row >body #) D- mov 7 D- dec ' c/col >body #) D+ mov D+ dec D+ dec 8 $601 # A mov $10 int U pop R pop D pop Next 9 end-code 10 11 : (cr (at? drop 1+ dup 2+ c/col u> 12 IF scroll 1- THEN lineerase ; 13 14 : (page top @ c/col 2- DO I lineerase -1 +LOOP ; 15 Screen 6 not modified 0 \ BIOS status display ks 2 sep 86 1 2 ' (emit ' display 2 + ! ' (cr ' display 4 + ! 3 ' (type ' display 6 + ! ' (del ' display 8 + ! 4 ' (page ' display &10 + ! 5 ' (at ' display &12 + ! ' (at? ' display &14 + ! 6 7 : .sp ( n -- ) ." s" depth swap 1+ - 2 .r ; 8 : .base base @ decimal dup 2 .r base ! ; 9 : (.drv ( n -- ) Ascii A + emit ." : " ; 10 : .dr ." " drv (.drv ; 11 : .scr blk @ IF ." Blk" blk ELSE ." Scr" scr THEN 12 @ 5 .r ; 13 : .space ." Dic" s0 @ here $100 + - 6 u.r ; 14 15 Screen 7 not modified 0 \ statuszeile ks 1 sep 86 1 2 | : fstat ( n -- ) .base .sp 3 .space .scr .dr file? 2 spaces order ; 4 5 : .stat attribut @ output @ (at? 6 display invers c/col 1- 0 (at 4 fstat 7 blankline (at output ! attribut ! ; 8 9 : +stat ['] .stat Is .status .status ; 10 11 : -stat ['] noop Is .status ; 12 13 14 15 Screen 8 not modified 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15