neuttower/jopl.jor

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' putc task-emit !
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:noname s" debug.jor" loadfile ; execute
' seremit dbg-emit !
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-1 const LOGFILE
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: emit-log fdeactivate LOGFILE factivate fputc fdeactivate drop factivate ;
: quit LOGFILE factivate close _quit ;
: DBG :| ' seremit task-emit ! execute cr |; 0 task-emit preserving ;
: DTYPE ' type DBG ;
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: dorepl begin receive loadstring s" ok" type cr again ;
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: start-repl activate
' putc task-emit ! ' emit-log task-echo !
s" .:: J O P L ( jean OPL2 print loop) ::." type cr
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dorepl ;
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task const REPL
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: start-dbg activate ' seremit task-emit !
s" .:: J D B G ( jean debugger) ::." type cr
dorepl ;
task const DBG
DBG start-dbg
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var voice
var op
: +voice! voice @ + 10 % voice ! ;
: op-with-voice voice @
dup 5 > if 5 + then
dup 2 > if 5 + then
+ op @ + ;
: opreg create b, does> ub@ op-with-voice ;
: voicereg create b, does> ub@ voice @ + ;
0x20 opreg ar-flags
0x40 opreg ar-level
0x60 opreg ar-ad
0x80 opreg ar-sr
0xe0 opreg ar-wave
0xc0 voicereg ar-alg
0xa0 voicereg ar-freq
0xb0 voicereg ar-note
: op2 3 op ! ;
: op1 0 op ! ;
: loadop ( flags level ad sr wave -- )
ar-wave adlib!
ar-sr adlib!
ar-ad adlib!
ar-level adlib!
ar-flags adlib! ;
: readop ( v -- )
>r r@ 4 + b@ r@ 3 + b@ r@ 2 + b@ r@ 1 + b@ <r b@ loadop ;
: instrument ( alg f1 l1 ad1 sr1 w1 f2 l2 ad2 sr2 w2 -- )
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array b, b, b, b, b, b, b, b, b, b, b, ;
: blank-instrument array 11 allot ;
: copy-instrument ( s d -- )
0 11 for over i + b@ over i + b! next drop drop ;
: loadinst ( p -- ) dup dup 5 + op1 readop op2 readop
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10 + b@ ar-alg adlib! ;
0 0x01 0x10 0xf0 0x77 0 0x01 0x00 0xf0 0x77 0 instrument default
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blank-instrument current
: current! current copy-instrument ;
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: swap-op ( inst -- )
0 5 for dup ub@ over 5 + ub@ >r over 5 + b! <r over b! 1 + next ;
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: freqon ( oct freq -- )
dup 0xff & ar-freq adlib!
8 >> 0x03 & swap 2 << | 0x20 | ar-note adlib! ;
: noteoff ( -- ) 0 ar-note adlib! ; userword
array semitones
3520 3520 />ratio ,
3729 3520 />ratio ,
3951 3520 />ratio ,
4186 3520 />ratio ,
4435 3520 />ratio ,
4699 3520 />ratio ,
4978 3520 />ratio ,
5274 3520 />ratio ,
5588 3520 />ratio ,
5920 3520 />ratio ,
6272 3520 />ratio ,
6645 3520 />ratio ,
: note dup 12 / 8 % swap 12 % cells semitones + @ 440 swap *<ratio ;
: noteon noteoff note freqon ;
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: read-sbi-reg ( reg-cp -- )
fgetc swap execute adlib! ;
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: read-sbi-op-reg ( offset -- )
dup 5 + current + fgetc swap b!
current + fgetc swap b! ;
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: loadsbi ( filename -- )
open 36 seek
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4 -1 for i read-sbi-op-reg next
fgetc current 10 + b!
close
current loadinst ; userword
: write-sbi-op-reg ( offset -- )
dup current + 5 + b@ fputc current + b@ fputc ;
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: writezeros ( n -- ) 0 for 0 fputc next ;
: savesbi ( filename -- )
overwrite
[ key S lit ] fputc [ key B lit ] fputc [ key I lit ] fputc 0x1a fputc
32 writezeros
4 -1 for i write-sbi-op-reg next
10 current + b@ fputc
5 writezeros
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close ; userword
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: rndbyte 256 rnd dup . ;
: rndop rndbyte rndbyte rndbyte rndbyte rndbyte s" loadop " type loadop ;
: rndinst s" op1 " type op1 rndop s" op2 " type op2 rndop
rndbyte s" ar-alg adlib! " type cr ar-alg adlib! ; userword
: panic 9 -1 for i voice ! noteoff next ; userword
var songticks
var beatcount
4 beatcount !
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var notestate
var octave
: oct+ octave @ 12 * + ; userword
: rest songticks @ begin suspend dup songticks @ != until drop ; userword
: beat begin dup songticks @ beatcount @ % 0 != while rest repeat drop ; userword
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: %O octave ! ; userword
: %V voice ! ; userword
: %loop 0xfe b, ; userword
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: mod % ;
: % notestate @ if 0xf0 b, else rest then ; userword
: %% 0 for % next ; userword
: %- notestate @ if 0xfd b, else noteoff then ; userword
: mknote create b, does> ub@ oct+ notestate @ if b, else noteon rest then ;
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11 mknote G# userword
10 mknote G userword
9 mknote F# userword
8 mknote F userword
7 mknote E userword
6 mknote D# userword
5 mknote D userword
4 mknote C# userword
3 mknote C userword
2 mknote B userword
1 mknote A# userword
0 mknote A userword
array tracks 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ,
array tracks-start 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 , 0 ,
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: track ( i -- p ) cells tracks + ;
: vtrack ( -- p ) voice @ track ;
: curr-track-start voice @ cells tracks-start + ;
: track-tick ( -- )
vtrack @ >r r@ if ( r: track )
songticks @ curr-track-start @ - ( -- index )
( call instrument word if start of track )
dup not if r@ cell + @ execute then ( index -- index )
( call "tick" word )
dup r@ @ execute ( index -- index )
2 cells + r@ + ub@ ( index -- note )
dup 0xf0 < if noteon
else dup 0xfd = if noteoff
else 0xfe = if songticks @ curr-track-start ! track-tick ( loop )
then then then
then rdrop ;
: pad-track ( start end -- )
swap - beatcount @ mod ( s e -- cpad )
dup if 0 for % next else drop then ;
: :track create ' drop , ' noop , here 1 notestate ! does>
beat vtrack ! songticks @ curr-track-start ! ; userword
: ;track here pad-track %loop 0 notestate ! ; userword
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: shush 0 voice @ track ! %- ; userword
: prev-name ( wordname -- wordname )
2 cells - @ 2 cells + ;
: 'name [ ' [ , ' ' , ' ] , ] ` lit ; immediate
: emit-octave ( note -- )
12 / dup octave @ != if dup octave ! . s" %O " type else drop then ;
: emit-note ( note -- )
'name A swap 12 mod 0 for prev-name next type bl ;
: emit-cmd ( cmd -- more )
dup 0xf0 = if s" % " type then
dup 0xfd = if s" %- " type then
dup 0xf0 < if dup emit-octave emit-note 1 then
dup 0xfe = if 'name ;track type cr drop 0 then ;
: emit-track ( 'track -- )
-1 octave ! dup ` swap 2 cells +
'name :track type bl swap type bl
begin dup ub@ emit-cmd while 1 + repeat drop ; userword
: emit-inst ( pinst -- )
11 -1 for dup i + ub@ . next drop s" instrument XXX" type cr ;
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( T E X T )
: setattr-to ( w -- ) 0 for attremit next ;
: clearline begin 0 emit-direct textx @ textleft @ = until ;
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: rpad ( n -- )
textleft @ + textx @ for bl next ;
: read-direct ( x y -- s )
80 * + here swap
begin dup 1 << 0xb800 b@far dup sp != while b, 1 + repeat
0 b, drop drop dup here! ;
: status
0 textx ! 0 texty ! 0 textleft !
s" V: " type voice @ .
s" O: " type octave @ .
s" T: " type songticks @ .
clearline ;
: emit-status-cmd ( ip -- ip )
dup ub@ swap 1 + swap
dup 0xf0 = if s" % " type then
dup 0xfd = if s" - " type then
dup 0xf0 < if dup emit-note then
dup 0xfe = if
16 textattr +!
swap @ emit-status-cmd swap
-16 textattr +!
then drop ;
: showtrack ( n -- )
dup . s" : " type
track @ dup if 20 0 for emit-status-cmd next then drop
clearline ;
: trackstatus voice @ showtrack ;
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var tempo userword 1 tempo !
: player
1 songticks +!
songticks @ tempo @ mod 0 = if
voice @
0 10 for i voice ! track-tick next
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voice !
then ;
var t2
: startt2
0x60 0x04 adlib!
0x80 0x04 adlib!
t2 @ 0x03 adlib!
0x42 0x04 adlib! ;
: ontick startt2 player
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:| status ( trackstatus ) |; 0 textleft textx texty preserving ;
41 const ^~
52 const ^.
51 const ^,
78 const ^#+
74 const ^#-
75 const ^LEFT
77 const ^RIGHT
72 const ^UP
80 const ^DOWN
73 const ^PGUP
81 const ^PGDN
28 const ^ENTER
26 const ^[
27 const ^]
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: keynote [ inline|
44 b, 31 b, 45 b, 32 b, 46 b, 47 b, 34 b, 48 b, 35 b, 49 b, 36 b, 50 b,
16 b, 3 b, 17 b, 4 b, 18 b, 19 b, 6 b, 20 b, 7 b, 21 b, 8 b, 22 b,
23 b, 10 b, 24 b, 11 b, 25 b,
|inline ] 0 29 for dup i + ub@ key-pressed if drop i 3 + rdrop rdrop ret then next
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drop ^, key-pressed if 15 else 0 then ; userword
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: onkeynote ( cp -- ) keynote dup if oct+ swap execute else drop drop then ;
var stopkeys
: stoponesc 1 key-pressed if 1 stopkeys ! then ;
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: voicekeys
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^#+ key-pressed if 1 octave +! then
^#- key-pressed if -1 octave +! then ;
^[ key-pressed if -1 +voice! then
^] key-pressed if 1 +voice! then ;
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: dokeys ( cp -- )
>r 0 stopkeys ! key-start begin
key-debounce r@ execute suspend
stopkeys @ until key-end rdrop ;
: nextnote ( ip -- ip )
dup if
dup ub@ >r
r@ 0xff = if drop 0 else
r@ 0xfe = if 1 + @ nextnote then then
rdrop
then ;
: setnote ( note -- )
voice @ track @ nextnote
dup if b! else drop drop then ;
: record
0x4f textattr !
:| stoponesc voicekeys
' setnote onkeynote
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^~ key-pressed if 0xfd setnote then
^. key-down if 0xf0 setnote then
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|; dokeys
0x1f textattr ! ; userword
: jamkeys
stoponesc voicekeys
' noteon onkeynote
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^~ key-pressed if noteoff then ;
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: jam ( todo: print? ) ' jamkeys dokeys ; userword
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var menuscroll
var menuy
var menuw
defer onselect
: menu-at ( cp x y w -- )
:| menuw ! texty ! dup textx ! textleft !
' emit-direct task-emit ! 0 task-echo !
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0 menuscroll ! 0 menuy !
execute ' noop ' onselect redefine |;
0 textleft task-emit task-echo preserving ;
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: menu-lines ( -- count ) 24 texty @ - ;
: menu-skip menuscroll @ 0 max ;
: menu-selectedy menuy @ menu-skip - texty @ + ;
: menuitem-bg ( attr -- )
:| menu-selectedy texty !
textleft @ textx !
textattr ! menuw @ setattr-to |;
0 texty textx textattr preserving ;
: deselect-menu ( -- ) 0x1f menuitem-bg ;
: select-menu ( -- ) 0x30 menuitem-bg ;
: selected-text textx @ menu-selectedy read-direct ;
: draw-menu ( cp -- ) 0 texty textattr preserving select-menu ;
: change-selection ( dy -- )
deselect-menu menuy +!pos select-menu onselect ;
: page-selection ( redraw dy -- 1 )
dup menuscroll +!pos menuy +!pos drop 1 ;
: key-menu ( -- redraw )
:|
0 ( redraw )
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^UP key-pressed if -1 change-selection then
^DOWN key-pressed if 1 change-selection then
^PGUP key-pressed if -10 page-selection then
^PGDN key-pressed if 10 page-selection then
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|; draw-menu ;
: draw-filemenu ( glob -- )
:| findfile
menu-skip 0 for drop nextfile next
menu-lines 0 for dup if type else drop then 13 rpad cr nextfile next
drop |; draw-menu ;
: inst ( -- )
:| selected-text loadsbi |; ' onselect redefine
:| s" *.sbi" draw-filemenu
:| jamkeys
key-menu if s" *.sbi" draw-filemenu then
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^ENTER key-pressed if 1 stopkeys ! then
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|; dokeys
|; 66 1 13 menu-at ; userword
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: shift-from-mask ( mask -- shift )
0 swap begin dup 1 & not while 1 >> swap 1 + swap repeat drop ;
: bf! ( v addr mask -- )
>r dup ub@ r@ ~ & <rot ( addr dstv srcv r:mask )
r@ shift-from-mask << <r & | swap b! ;
: bf@ ( addr mask -- v ) >r ub@ r@ & <r shift-from-mask >> ;
: poly! ( v [...] get set -- ) swap drop execute ;
: poly@ ( [...] get set -- v ) drop execute ;
: poly-bf ' bf@ ' bf! ;
: poly-noop ' 0 ' drop ;
: bitfield ( byteoffset mask -- )
create b, b, does> ( addr bf -- addr mask )
>r r@ 1 + ub@ + <r ub@ ;
: wordchain create 0 , 0 , does> ( l ) dup cell + swap @ if
@ ( link creation mode done; fetch the head )
else ( make new link )
here over @ , swap ! latest ,
then ;
: endwordchain ( cp -- ) 2 cells + 1 swap ! ;
: linkedval ( link -- val ) cell + @ ;
: nth-linkedval ( link c -- val )
begin dup while 1 - swap @ swap repeat drop linkedval ;
wordchain opbits
4 0x80 bitfield @ampmod opbits
4 0x40 bitfield @vib opbits
4 0x20 bitfield @egtype opbits
4 0x10 bitfield @ksr opbits
4 0x0f bitfield @mod-freq-mult opbits
3 0xc0 bitfield @scaling-level opbits
3 0x3f bitfield @output-level opbits
2 0xf0 bitfield @attack opbits
2 0x0f bitfield @decay opbits
1 0xf0 bitfield @sustain opbits
1 0x0f bitfield @release opbits
0 0x03 bitfield @wave opbits
' opbits endwordchain
: c+op current op @ not if 5 + then ;
: count-links 0 swap links each swap 1 + swap more ;
opbits count-links const #opbits
wordchain algbits
10 0x0e bitfield @feedback algbits
10 0x01 bitfield @decay-alg algbits
' algbits endwordchain
algbits count-links const #algbits
: lookup-nth-bitfield ( n inst link -- p mask )
<rot nth-linkedval codepointer execute ;
: instfield ( n -- [...] get set )
dup 1 < if
drop :| op @ 1 & |; :| if op2 else op1 then |;
else 1 - dup #opbits < if
c+op opbits lookup-nth-bitfield poly-bf
else #opbits - dup #algbits < if
current algbits lookup-nth-bitfield poly-bf
else drop poly-noop then then then ;
: draw-wordchain ( i link -- i )
links each
dup linkedval wordname type 25 rpad
over instfield poly@ . 30 rpad cr
swap 1 + swap
more ;
: draw-inst
:| s" operator" type 25 rpad 0 instfield poly@ . 30 rpad cr
1 opbits draw-wordchain
algbits draw-wordchain drop |; draw-menu ;
: redraw-instfield ( n -- )
dup if
:| 25 textx ! dup texty +! instfield poly@ . 30 rpad |;
0 textx texty preserving
else
draw-inst ( 0 is operator - need to redraw all values )
then ;
: modify-instfield ( n cp -- )
over instfield poly@ swap execute over instfield poly!
redraw-instfield
op @ current loadinst op ! ;
: edinst
:| draw-inst
:| jamkeys
key-menu if draw-inst then
^LEFT key-pressed if menuy @ :| 1 - |; modify-instfield then
^RIGHT key-pressed if menuy @ :| 1 + |; modify-instfield then
^ENTER key-pressed if 1 stopkeys ! then
|; dokeys
|; 0 1 30 menu-at ; userword
: dune ( -- ) s" dune" chdir inst s" .." chdir ;
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:noname
s" jopl.log" open seekend fdeactivate ' LOGFILE redefine
REPL start-repl
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9 -1 for i voice ! default loadinst next
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startt2
' emit-direct task-emit !
; ' onload redefine
2 %O
:track bassline C % % C % % % G % % % G % % G % % C % % C % % % G 8 %% ;track