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2488 lines (2100 loc) · 42.5 KB
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;APS0000422E000000000000000000000000000000000000000000000000000000000000000000000000
incdir include:
include exec/exec_lib.i
include exec/interrupts.i
include hardware/intbits.i
include hardware/cia.i
include resources/cia_lib.i
include exec/ports.i
include mucro.i
;incdir
_ciaa = $bfe001
_ciab = $bfd000
CHM = 0 * 1: käännetään channelmask-homma mukaan
fast = 1 * 0: ei fastram rutiinia
dmawait set 1 * 1: isot dmawaitit, toimii esim super72 jne,
* 0: tavalliset, 6+3 tms
dmwait set dmawait|fast
*******************************************************************************
* KPlayer v33 --- 31.3.1996 © by K-P Koljonen *
*******************************************************************************
* A flexible and fast ProTracker-module player.
* All commands excluding E4 and E7 are supported.
*
* k_init
*
* Initialize everything necessary (no audiochannel allocating), convert
* patterndata to KPlayer format.
* A0 <= 2000 bytes buffer (for variables etc.)
* A1 <= Protracker/Noisetracker/Stattrekker module, 64 or 100 patterns
* D0.b <= Starting position
* D1.b <= 0: user, 1: automatic cia
* D2.b <= Flags, bit 0: tempo, bit 1: fast ram play
* D0 => 0: OK, -1: Couldn't allocate CIA timer or invalid module.
*
* k_music
*
* In modes 0 and 1 call this every frame to play the music.
*
* k_end
*
* Stop the audio DMA and interrupts.
* D0.w => Stopping position
*
* k_channelmask
*
* D0.b <= Channelmask. Set bit = channel enabled,
* bit 0 = channel 0 ... bit 3 = channel 3.
* Disabled channel of the module will be totally ignored and no
* audio registers will be changed.
*
* k_playstop
*
* D0.b <= 0: Play, non-0: don't play
*
* k_setmaster
*
* Set the mastervolume of the music (default max=64).
* D0.b <= Mastervolume
*
* k_clear
*
* Stop audio DMA.
*
* Timing modes
*
* 0 - system friendly, no tempo, no interrupts, DMA wait
* 1 - no tempo, CIAB timer B interrupt
* 2 - tempo, CIAB timers A and B
* 3 - system friendly, tempo, CIAA timer A or B interrupt, DMA wait
*
* k_base
*
* k_base is the data area for KPlayer where all the variables
* needed for playing one module is located.
*
* Speed
*
* Rastertime usage with most modules is between 2 and 7 lines on 68000
* Amigas. In addition to these lines, modes 0 and 3 use a DMA wait of 7+3
* lines.
* Setting the mastervolume to maximum (64) will gain some speed (no need
* to scale volumes).
* Fast ram player uses about 15% cpu on A500.
*
* Usertrig
*
* It's possible to use the information in k_base to make quadrascopes etc.
* The byte k_usertrig (k_base+k_usertrig) has four bits (0-3) for every
* channel. At the same time as one of these bits sets, a new sample
* in the respective channel starts to play. You should clear k_usertrig after
* you've read it.
* Samplestarts, volumes, periods, etc. can be found by examining the
* k_base structure below.
*
* KPlayer by: K-P Koljonen
* Torikatu 31
* 40900 Säynätsalo
* Finland
*
* kpkoljon@freenet.hut.fi
*
*******************************************************************************
rsreset * Routine offsets, kplayer+kp_????
kp_init rs.l 1
kp_music rs.l 1
kp_end rs.l 1
kp_setmaster rs.l 1
kp_channelmask rs.l 1
kp_playstop rs.l 1
kp_clear rs.l 1
kp_baseaddress rs.l 1 * This is where the k_base addr is stored.
* channel data blocks
rsreset
n_data rs.l 1
n_start rs.l 1 * Sample start address
n_length rs 1 * Sample length (words)
n_volume rs 1 * Volume
n_periodaddr rs.l 1
n_loopstart rs.l 1 * Loopstart
n_replen rs 1 * Looplength
n_wavestart rs.l 1
n_period rs 1 * Period
n_dmabit rs 1
n_toneportspeed rs 1
n_wantedperiod rs 1
n_pattpos rs 1
n_period2 rs 1
n_tempvol rs 1
n_sampleoffset rs 1
n_vibratopos rs.b 1
n_tremolopos rs.b 1
n_toneportdirec rs.b 1
n_vibratocmd rs.b 1
n_tremolocmd rs.b 1
n_loopcount rs.b 1
n_funkoffset rs.b 1
n_funkspeed rs.b 1
n_retrig rs.b 1
n_glisscontrol rs.b 1
n_flag rs 1
n_buffer rs.l 1 * chip buffer (1kb)
n_datapointer rs.l 1
n_datalength rs.l 1
n_datarepointer rs.l 1
n_datarelength rs.l 1
n_sizeof rs.b 0 * channel temp size
* variables & data
rsreset
k_counter rs.b 1
k_speed rs.b 1
k_posjumpflag rs.b 1
k_pbreakflag rs.b 1
k_pattdeltime rs.b 1
k_pattdeltime2 rs.b 1
k_songpos rs 1 * Song position
k_pbreakpos rs 1
k_patternpos rs 1 * Patternposition
k_dma rs 1
k_mastervolume rs 1
k_songdataptr rs.l 1
k_fast rs.b 1 * <>0: samplet fastissa
k_timingmode rs.b 1
k_filterstore rs.b 1
k_trig rs.b 1
k_tempo rs.b 1
k_usetempo rs.b 1 * ~0: ei tempoa
k_usertrig rs.b 1 * User trigger
k_sysint rs.b 1
k_playmusic rs.b 1 * 0 = play
k_songover rs.b 1 * Song played n times
k_chmask rs.b 1 * Kanavamaski
k_intid rs.b 1
k_whichtimer rs.b 1
rs.b 1
k_timerhi rs.b 1
k_timerlo rs.b 1
k_timervalue rs.l 1
k_ciabase rs.l 1 * cia?.resource base
k_cia rs.l 1 * ciab tai ciaa osoite
k_null rs.l 1
k_oldis1 rs.l 1
k_oldis2 rs.l 1
k_oldis3 rs.l 1
k_oldis4 rs.l 1
k_mt rs.l 31 * Sampleaddresses
k_chan1temp rs.b n_sizeof * Channel data blocks
k_chan2temp rs.b n_sizeof
k_chan3temp rs.b n_sizeof
k_chan4temp rs.b n_sizeof
k_roundtable rs.b 1512
k_sizeof rs.b 0 * size of k_base
ifnd __VASM
main
; move $dff01c,-(sp)
; move #$7fff,$dff09a
lea k_base,a0
lea module,a1
moveq #0,d0
moveq #0,d1 * Mode
moveq #0,d1 * Mode
; moveq #%11,d2 * flags, fastramyes, tempoyes
; moveq #%01,d2 * flags, tempoyes
bsr.b kplayer+kp_init
tst.l d0
bne.b .error
ifne CHM
moveq #%0001,d0
bsr kplayer+kp_channelmask
endc
moveq #$3f,d0
bsr.b kplayer+kp_setmaster
.loop
.1 cmp.b #$60,$dff006
bne.b .1
.2 cmp.b #$60,$dff006
beq.b .2
tst.b k_base+k_timingmode
bne.b .rr
; move #$ff0,$dff180
bsr.w k_music
; clr $dff180
.rr
btst #6,$bfe001 * left
bne.b .loop
bsr.b kplayer+kp_end
.error rts
endif
*******************************************************************************
* sample
rsreset
s_start rs.l 1
s_length rs 1
s_volume rs 1
s_periodaddr rs.l 1 * s_finetune käytännössä
s_loopstart rs.l 1
s_replen rs 1
s_wavestart rs.l 1
* note
d_command = 0
d_period = 2
d_samplenum = 3
* orig. sampleinfo
ss_length = 42-42
ss_finetune = 44-42
ss_volume = 45-42
ss_repeat = 46-42
ss_replen = 48-42
binstart
kplayer
bra.b k_init
rts
bra.w k_music
bra.w k_end
bra.w k_setmaster
ifne CHM
bra.w k_channelmask
else
rts
rts
endc
bra.w k_playstop
bra.w k_clear
k_baseaddr dc.l 0 * k_base's address
k_intname
dc.b " KPlayer v33 © 31.3.1996 by K-P Koljonen",0
k_cianame dc.b "ciaa.resource",0
even
***********************
* Init
***********************
k_init cmp.l #'M.K.',1080(a1)
beq.b k_valid
cmp.l #'M!K!',1080(a1)
beq.b k_valid
cmp.l #'FLT4',1080(a1)
beq.b k_valid
moveq #-1,d0
rts
k_valid movem.l d1-a6,-(sp)
lea k_baseaddr(pc),a5
move.l a0,(a5)
move.l a0,a5
move #k_sizeof/2-1,d7 * tyhjätään muuttujatila
k_c clr (a0)+
dbf d7,k_c
move.l a1,a4
move.b d0,k_songpos+1(a5)
move.b d1,k_timingmode(a5)
move.b #%1111,k_chmask(a5)
ror.b #1,d2
spl k_usetempo(a5)
ifne fast
ror.b #1,d2
smi k_fast(a5)
bpl.b .chip
pushm all
move.l 4.w,a6
move.l #1024,d0
moveq #2,d1 * MEMF_CHIP
move.l #$10002,d1 * MEMF_CHIP!MEMF_CLEAR
lob AllocMem
move.l d0,a0
move.l a0,n_buffer+k_chan1temp(a5)
lea 256(a0),a0
move.l a0,n_buffer+k_chan2temp(a5)
lea 256(a0),a0
move.l a0,n_buffer+k_chan3temp(a5)
lea 256(a0),a0
move.l a0,n_buffer+k_chan4temp(a5)
popm all
.chip
endc
move #1,k_chan1temp+n_dmabit(a5)
move #2,k_chan2temp+n_dmabit(a5)
move #4,k_chan3temp+n_dmabit(a5)
move #8,k_chan4temp+n_dmabit(a5)
move.b #6,k_speed(a5) * nopeus: 6
move.b #4,(a5) * laskuri: 4
move #$40,k_mastervolume(a5) * päävolume: 64
move.b #125,k_tempo(a5) * tempo: 125
lea k_mt(a5),a3 * sampleinfo lista
moveq #31-1,d0
lea 20(a4),a2
k_mkm move.l a2,(a3)+
lea 30(a2),a2
dbf d0,k_mkm
lea 952(a1),a0 * tutkitaan patternien määrä
moveq #128-1,d0
moveq #0,d1
k_lop1
move.b (a0)+,d2
cmp.b d2,d1
bhi.b k_lop2
move.b d2,d1
k_lop2
dbf d0,k_lop1
addq #1,d1
mulu #1024,d1 * Eka sample patternien jälkeen
lea 1084(a4),a0
add.l d1,a0
lea 42(a4),a2
clr.l (a4) * moduulin alkuun tyhjä longwordi!
move.l a4,k_null(a5)
lea 20(a4),a1 * vetästään samplennimien päälle
lea k_pertab(pc),a3
move.l a3,d5
move.l a0,d7
moveq #0,d4
moveq #31-1,d0
k_lop3 * Tehdään omat sampleinfo (alkup.nimien päälle)
** Versio 3 (toimii, ehkä)
move.l a0,s_start(a1)
moveq #0,d1
move (a2),d1 * onk
cmp #2,d1 * joku raja pitää vetää: ei alle 4b sampleja
bhs.b k_nonol
move #1,ss_replen(a2) * To
move #1,s_length(a1) * Pi
move.l a0,-(sp)
move.l a4,a0 * nullsample
bsr.b k_noe
move.l (sp)+,a0
bra.b k_nil
k_nonol move d1,s_length(a1)
clr (a0)
bsr.b k_noe
k_nil dbf d0,k_lop3
bra.b k_konmo
k_noe
move.l d1,d4
add.l d4,d4
moveq #%1111,d1
and.b ss_finetune(a2),d1
add d1,d1
move.l d1,a3
add.l d5,a3
add (a3),a3
move.l a3,s_periodaddr(a1)
move.b ss_volume(a2),d1
move d1,s_volume(a1)
move ss_repeat(a2),d1
beq.b k_norep
moveq #0,d3
move d1,d3
add.l d3,d3
move.l a0,d2
add.l d3,d2
move.l d2,s_loopstart(a1)
move.l d2,s_wavestart(a1)
move ss_replen(a2),d2
add d2,d1
move d1,s_length(a1)
move d2,s_replen(a1)
bra.b k_wasrep
k_norep
move.l a0,s_loopstart(a1)
move.l a0,s_wavestart(a1)
move ss_replen(a2),s_replen(a1)
bne.b .ye
move #1,s_replen(a1) * Vähintään 1!!
.ye
k_wasrep
k_dud add.l d4,a0
lea 30(a1),a1
lea 30(a2),a2
rts
k_konmo
lea 1084(a4),a3
lea 952(a4),a4
move.l a4,k_songdataptr(a5)
subq.l #1,a4
moveq #'K',d0
cmp.b (a4),d0
beq.w k_what * moduuli kertaalleen convertattu
move.b d0,(a4) * tunniste
* tehdään perioidien pyöristystaulukko
moveq #36-1,d2
lea k_pt2(pc),a0
lea k_roundtable(a5),a1
moveq #100,d0
.eee move -(a0),d1
.ee cmp d0,d1
beq.b .e
move d1,(a1)+
addq #1,d0
bra.b .ee
.e dbf d2,.eee
move.l d7,a4 * patterndatan loppu
move #$fff,d6
lea k_periodtable(pc),a1
lea k_roundtable(a5),a2
k_conv * Käännetään KPlayer-muotoon
move (a3),d0
and d6,d0
beq.b k_nope
sub #100,d0 * (pyöristetty) perioidi taulukosta
add d0,d0
move -3*2(a2,d0),d0
* max=907-108
; cmp #907,d0 * onko period sallituissa rajoissa?
; bhi.b k_nope
; cmp #108,d0
; blo.b k_nope
* 36 nuottia
moveq #36-1,d2
move.l a1,a0
moveq #1,d1
k_findit
cmp (a0)+,d0
beq.b k_wasi
addq #2,d1
dbf d2,k_findit
k_nope
moveq #0,d1 * ei perioidia
k_wasi
moveq #$10,d3 * samplenum=4+1 bittiä
and.b (a3),d3
move.b 2(a3),d4
lsr.b #4,d4
or.b d4,d3 * samplenumero
lsl.b #2,d3 * kertaa 4
move 2(a3),d4
and d6,d4 * command
move d4,d5 * patternbreak
and #$0f00,d5
cmp #$0d00,d5
bne.b k_grr
move d4,d5 * muutetaan patternbreak (D00)
and #$f0,d5
lsr #4,d5
mulu #10,d5
and #$f0f,d4
add d5,d4
k_grr
cmp #$0ED0,d4 * Onko notedelay ilman delayta?
bne.b .gr * Poistetaan sellaiset.
moveq #0,d4
.gr
ror #8,d4
lsl.b #2,d4 * kerrotaan komento neljällä
rol #8,d4
move d4,(a3)+
move.b d1,(a3)+
move.b d3,(a3)+
cmp.l a4,a3
blo.b k_conv
k_what
bsr.w k_foff * filtteri pois ja ent.asento talteen
sne k_filterstore(a5)
bsr.w k_clear
st k_whichtimer(a5)
moveq #0,d0
cmp.b #1,k_timingmode(a5)
beq.b .ff
bsr.b k_moodi
bra.b .fe
.ff bsr.b k_imode3
.fe tst.l d0
x movem.l (sp)+,d1-a6
rts
k_moodi
st k_usetempo(a5) * tempo pois
ifne fast
bsr.w k_fastinit
endc
moveq #0,d0
rts
k_imode3
lea softint(pC),a0
lea intserver(pC),a1
pea k_softkiller1(pc)
move.l (sp)+,IS_CODE(a0)
pea k_intname(pc)
move.l (sp),LN_NAME(a0)
move.l (sp)+,LN_NAME(a1)
pea k_killer3(pc)
move.l (sp)+,IS_CODE(a1)
pea softint(pc)
move.l (sp)+,IS_DATA(a1)
lea dummyserver(pc),a0
pea dummy(pc)
move.l (sp)+,IS_CODE(a0)
bsr.w k_timerval
* käytetään CIAA timeriä.
lea _ciaa,a3
moveq #0,d6
lea k_cianame(pc),a1
move.b #'a',3(a1)
moveq #0,d0
move.l 4.w,a6
move.l a6,exeksi-k_cianame(a1)
lob OpenResource
move.l d0,k_ciabase(a5)
beq.b .se
move.l d0,a6
lea intserver(pc),a1
move.l d6,d0
lob AddICRVector
tst.l d0
beq.b k_gottimer * Saatiinko?
lea intserver(pc),a1
moveq #1,d6 * timer b
move.l d6,d0
lob AddICRVector
tst.l d0
beq.b k_gottimer
.se
** kokeillaan ciab:tä
lea _ciab,a3
moveq #0,d6
lea k_cianame(pc),a1
move.b #'b',3(a1)
moveq #0,d0
move.l 4.w,a6
lob OpenResource
move.l d0,k_ciabase(a5)
beq.b k_err
move.l d0,a6
lea intserver(pc),a1
move.l d6,d0 * timer a
lob AddICRVector
tst.l d0
beq.b k_gottimer * Saatiinko?
lea intserver(pc),a1
moveq #1,d6 * timer b
move.l d6,d0
lob AddICRVector
tst.l d0
beq.b k_gottimer
k_err moveq #-1,d0 * ERROR! Ei saatu varattua timeriä.
rts
k_gottimer
move.b d6,k_whichtimer(a5)
move.l a3,k_cia(a5)
lea ciatalo(a3),a2
tst.b d6
beq.b .timera
lea ciatblo(a3),a2
.timera
move.b k_timerlo(a5),(a2)
move.b k_timerhi(a5),$100(a2)
ifne fast
bsr.b k_fastinit
endc
lea ciacra(a3),a2
tst.b d6
beq.b .tima
lea ciacrb(a3),a2
.tima
move.b #%00010001,(a2) * Continuous, start
k_eiks
rts
k_timerval * Tutkii ajastimen
move.l #1773447,d0 * Pal, NTSC=1789773
move.l 4.w,a0
cmp.b #50,531(a0) * PowerSupplyFrequency
beq.b k_waspal
; move.l #1789773,d0 * NTSC
move #$4f4d,d0
k_waspal
move.l d0,k_timervalue(a5)
divu #125,d0
move d0,k_timerhi(a5)
rts
ifne fast
k_fastinit
tst.b k_fast(a5)
bne.b .f
rts
.f pushm all
bsr.w k_clear
lea $dff000,a3
move.l #$07800780,$9a(a3)
moveq #128/2,d0
move d0,$a4(a3) * len
move d0,$b4(a3)
move d0,$c4(a3)
move d0,$d4(a3)
move.l 4.w,a6
moveq #INTB_AUD0,d0
lea audi0(pc),a1
move.l a5,IS_DATA(a1)
pea audi0r(pc)
move.l (sp)+,IS_CODE(a1)
lob SetIntVector
move.l d0,k_oldis1(a5)
moveq #INTB_AUD1,d0
lea audi1(pc),a1
move.l a5,IS_DATA(a1)
pea audi1r(pc)
move.l (sp)+,IS_CODE(a1)
lob SetIntVector
move.l d0,k_oldis2(a5)
moveq #INTB_AUD2,d0
lea audi2(pc),a1
move.l a5,IS_DATA(a1)
pea audi2r(pc)
move.l (sp)+,IS_CODE(a1)
lob SetIntVector
move.l d0,k_oldis3(a5)
moveq #INTB_AUD3,d0
lea audi3(pc),a1
move.l a5,IS_DATA(a1)
pea audi3r(pc)
move.l (sp)+,IS_CODE(a1)
lob SetIntVector
move.l d0,k_oldis4(a5)
popm all
rts
endc
* d1 = rasterlines to wait
waitti
pushm d0/d1
.d move.b 6(a6),d0
.k cmp.b 6(a6),d0
beq.b .k
dbf d1,.d
popm d0/d1
rts
; pushm d1/d6/d7/a1
; lea.l 6+1(a6),a1
; move.b (a1),d7
; and.b #$f0,d7
;.loop1 move.b (a1),d6
; and.b #$f0,d6
; cmp.b d7,d6
; beq.s .loop1
;.loop2 move.b (a1),d6
; and.b #$f0,d6
; cmp.b d7,d6
; bne.s .loop2
; dbf d1,.loop1
; popm d1/d6/d7/a1
; rts
; pushm d1/a0
; lea.l $bfe001,a0
;.e rept 23
; tst.b (a0)
; endr
; dbf d1,.e
; popm d1/a0
; rts
dummyserver
dc.l 0,0
dc.b 2,0
dc.l 0
dc.l 0
dc.l 0
softint
dc.l 0,0
dc.b 2,0
dc.l 0
dc.l 0
dc.l 0
intserver
dc.l 0,0
dc.b 2,0
dc.l 0
dc.l 0
dc.l 0
dummy
moveq #0,d0
rts
ifne fast
audi0 dc.l 0,0
dc.b 2,100
dc.l 0
dc.l 0
dc.l 0
audi1 dc.l 0,0
dc.b 2,100
dc.l 0
dc.l 0
dc.l 0
audi2 dc.l 0,0
dc.b 2,100
dc.l 0
dc.l 0
dc.l 0
audi3 dc.l 0,0
dc.b 2,100
dc.l 0
dc.l 0
dc.l 0
* a1 = is_data = k_base
* a0 = $dff000
audi0r
pushm a2/a3
lea k_chan1temp(a1),a1
lea $a0(a0),a0
bsr.b dof
popm a2/a3
move #INTF_AUD0,$9c-$a0(a0)
moveq #0,d0
rts
audi1r
pushm a2/a3
lea k_chan2temp(a1),a1
lea $b0(a0),a0
bsr.b dof
popm a2/a3
move #INTF_AUD1,$9c-$b0(a0)
moveq #0,d0
rts
audi2r
pushm a2/a3
lea k_chan3temp(a1),a1
lea $c0(a0),a0
bsr.b dof
popm a2/a3
move #INTF_AUD2,$9c-$c0(a0)
moveq #0,d0
rts
audi3r
pushm a2/a3
lea k_chan4temp(a1),a1
lea $d0(a0),a0
bsr.b dof
popm a2/a3
move #INTF_AUD3,$9c-$d0(a0)
moveq #0,d0
rts
*** Kopioidaan chip-puskuriin
dof
move.l n_buffer(a1),a2
not.b n_flag(a1)
beq.b .oer
lea 128(a2),a2
.oer
move.l a2,(a0)
copys
move.l n_datapointer(a1),a3
move n_datalength(a1),d0
cmp #128/2,d0
bhi.b .big
cmp #1,d0
bhi.b .med
cmp #1,n_datarelength(a1)
bls.b .small
.med
; moveq #128/2-1,d1
;.copy move (a3)+,(a2)+
; subq #1,d0
; bne.b .ok
; move.l n_datarepointer(a1),a3
; move n_datarelength(a1),d0
;.ok dbf d1,.copy
;
;.ex move d0,n_datalength(a1)
; move.l a3,n_datapointer(a1)
; rts
moveq #128/2-1,d1
.copy move (a3)+,(a2)+
subq #1,d0
dbeq d1,.copy
tst d1
bmi.b .ex
move.l n_datarepointer(a1),a3
move n_datarelength(a1),d0
dbf d1,.copy
.ex move d0,n_datalength(a1)
move.l a3,n_datapointer(a1)
rts
.big
rept 32
move.l (a3)+,(a2)+
endr
sub #128/2,d0
bra.b .ex
*** 2 byten loopit
.small
moveq #0,d1
rept 32
move.l d1,(a2)+
endr
bra.w .ex
endc
**************
* Keskeytykset
***************
;k_killer4b
; not.b k_intid(a5)
; beq.b k_repe2
; bsr.b k_repe1
; move.b #%00011001,$bfdf00 * Timer B, one shot
; rts
* Systeemi-keskeytykset
k_softkiller1
; move #$ff0,$dff180
bsr.w k_music
; clr $dff180
moveq #0,d0
rts
* toimis muuten muttei CDTV:ssä.
;k_killer3
;k_killer5
; lob Cause
; moveq #0,d0