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c2protoz.s
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IFD DEMOSYSTEM
IFD STANDALONE
ELSE
STANDALONE equ 1
ENDC
ELSE
STANDALONE equ 0
ENDC
IFEQ STANDALONE
TRUE equ 0
FALSE equ 1
true equ 0
false equ 1
SHOW_CPU equ 0
USE_MYM_DUMP equ 0
ROTO_EFFECT_VBL equ 20*50-36-40 ; special case, this one is in vbls 6647
ROTO_PANEL_IN_WAIT_VBL equ 5 ; number of frames delay before panel comes in
ROTO_PANEL_OUT_VBL equ 760
ROTO_UNDERLINE_WAIT equ 470
C2P_ROTOZ_TEXTURE_FROM_PLANAR equ 1
CHECK_VBL_OVERFLOW equ 0
ELSE
C2P_ROTOZ_TEXTURE_FROM_PLANAR equ 1
ENDC
ZOOMPAL equ 0
fontpixels_drawn_per_effect_frame equ 30*8
effect_frames_before_credits_start equ 64
effect_fames_draw_credits equ 68
effect_frames_display_credits equ 28 ;96
effect_frames_between_credits equ 32 ;100
sintable_length equ 2048
sintable_size equ 2048*2
viewport_width_blocks equ 12
viewport_height_lines equ 96
incdir gfx
incdir lib
incdir msx
incdir res/smfx
section TEXT
; opt o-
include macro.s
IFEQ STANDALONE
initAndRun standalone_init
standalone_init
jsr init_effect
jsr init_rotozoom
.x
cmp.b #$39,$fffffc02.w ; spacebar to exit
bne .x ;
rts
init_effect
; move.w #$222,$ffff8240
move.l #memBase+65536,d0
sub.w d0,d0
move.l d0,screenpointer
move.l d0,screen1
add.l #$10000,d0
move.l d0,screenpointer2
move.l d0,screen2
rts
ENDC
init_rotozoom
; jsr prepPanel
move.l screen1,d0
move.l d0,screenpointer
move.l d0,d1
move.l screen2,d0
move.l d0,screenpointer2
move.l d0,d1
add.l #$9000+9216,d1
move.l d1,doublescanlinespointer
move.l d1,chunkytextpointer
add.l #3500,d1
move.l d1,rotosmcpointer
add.l #1586,d1
move.l d1,ul3ptr
add.l #3360,d1
move.l d1,updateTexturePointer
add.l #$10000,d0
move.l d0,c2plookuptablepointer ;4
add.l #$40000,d0
move.l d0,text1pointer ;6
add.l #$20000,d0
move.l d0,text2pointer ;8 ---> 524288 512kb
add.l #$20000,d0
move.l d0,panel4Pointer
IFEQ STANDALONE
move.w #$2700,sr
move.l #.wvbl,$70
move.w #$2300,sr
ENDC
jsr generateC2PLookupTable
; this is only for development purposes
IFEQ C2P_ROTOZ_TEXTURE_FROM_PLANAR
lea planarpic+128,a0
move.l chunkytextpointer,a1
jsr planarToChunkyRoto
ELSE
lea texture,a0
move.l chunkytextpointer,a1
jsr cranker
ENDC
; end development purposes
lea panelroto,a0
move.l panel4Pointer,a1
jsr cranker
jsr generateTextureTables
jsr generateDoubleScanlines
jsr generateRotoCode
jsr preShiftPlasmaBar
; jsr generateUpdateTexture
lea ul3,a0
move.l ul3ptr,a1
jsr cranker
IFEQ STANDALONE
movem.l moveBarPal2,d0-d7
ELSE
movem.l flash3pal,d0-d7
ENDC
movem.l d0-d7,rotozpal
move.w #ROTO_UNDERLINE_WAIT,tbwait
IFNE STANDALONE
move.w #180-6,tboc3framewait
ENDC
move.w #2,botTimes
; movem.l planarpic+4,d0-d7
; movem.l d0-d7,$ffff8240
; lea routListTab,a0
; moveq #40,d0
; REPT 18
; move.w d0,(a0)+
; addq.w #4,d0
; ENDR
; move.w #$4e71,removePanelLamelsVoxel
; move.w #1,flipVoxel
; moveq #0,d0
; move.w $466.w,d0
; move.b #0,$ffffc123
move.w #0,$466
.www
tst.w $466.w
beq .www
move.w #0,$466
move.w #ROTO_EFFECT_VBL,effect_vbl_counter
move.w #$2700,sr
move.l #rotozoom_vbl,$70
move.w #$2300,sr
move.w #0,$466
.mainloop
cmp.w #2,$466.w
blt .mainloop
beq .ok
IFEQ CHECK_VBL_OVERFLOW
; move.b #0,$ffffc123
lea $ffff8240,a0
move.w #$700,d0
rept 16
move.w d0,(a0)+
endr
ENDC
.ok
move.w #0,$466.w
tst.w rotobarsdone
beq .doItDiff
jsr movePlasmaBars
jsr scrubLowerPart
jsr doRotoZoom
jsr doC2P
jsr doC2P2
jsr doC2P3
jsr clearLinesHorizontal
jsr doubleLines
jsr moveRotoBars
jmp .skipRoto
.doItDiff
jsr movePlasmaBars
jsr scrubLowerPart
jsr doRotoZoom
; jsr drawCredits
jsr doC2PFast
jsr clearLinesHorizontal
jsr doubleLines
; jsr moveRotoBars
jsr drawPictureRoto
.skipRoto
move.l screenpointer2,$ffff8200
swapscreens
tst.w effect_vbl_counter
blt .next
jmp .mainloop
.next
IFNE STANDALONE
jsr precalcChecker
ENDC
.wwww
tst.w fadeTransitionOff
bne .wwww
move.w #0,$466.w
.ww
tst.w $466.w
beq .ww
move.w #0,$466.w
IFNE STANDALONE
jsr clearMem
ENDC
rts
.vblwaiter dc.w 20
.rotoWait dc.w 20
.wvbl
addq.w #1,$466.w
addq.w #1,cummulativeCount
IFEQ USE_MYM_DUMP
IFNE STANDALONE
jsr replayMymDump
ENDC
ELSE
jsr musicPlayer+8
ENDC
rte
scrubLowerPart
cmp.w #$4e75,movePlasmaBars
bne .skip
move.l screenpointer,a0
move.l screenpointer2,a1
add.l #200*160,a0
add.l #200*160,a1
move.w .off,d0
bne .normal
.first
; lea underline+128+45*160,a2
move.l ul3ptr,a2
moveq #0,d0
move.w #2-1,d7
.cld
REPT 20
move.l d0,(a0)+
move.l d0,(a1)+
ENDR
dbra d7,.cld
REPT 8
move.l d0,(a0)+
move.l d0,(a1)+
move.l d0,(a0)+
move.l d0,(a1)+
ENDR
move.w #42-1,d7
.cpd2
REPT 20
move.l (a2)+,d0
move.l d0,(a0)+
move.l d0,(a1)+
ENDR
dbra d7,.cpd2
add.w #22*160,.off
rts
.normal
add.w d0,a0
add.w d0,a1
moveq #0,d0
move.w #18-1,d7
.lll
REPT 20
move.l d0,(a0)+
move.l d0,(a1)+
ENDR
dbra d7,.lll
add.w #9*160,.off
cmp.w #63*160,.off
ble .skip
move.w #$4e75,scrubLowerPart
.skip
rts
.off dc.w 0
fadeTransitionOff dc.w 448
;--------------
;DEMOPAL - FadeOout table for transition, from original colors to white, then to bg color
;--------------
; - from 480 to 0
fadeToTransitionTable
IFEQ ZOOMPAL
dc.w $000,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111 ;1
dc.w $000,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222 ;2
dc.w $000,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333 ;3
dc.w $000,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444 ;4
dc.w $000,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555 ;5
dc.w $000,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666 ;6
dc.w $000,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777 ;7
dc.w $000,$777,$777,$777,$777,$777,$777,$777,$777,$777,$776,$776,$776,$776,$777,$777 ;8
dc.w $000,$777,$777,$777,$777,$777,$777,$777,$777,$777,$776,$776,$776,$776,$776,$667 ;9
dc.w $000,$767,$777,$777,$777,$777,$777,$777,$777,$776,$775,$775,$775,$775,$775,$556 ;10
dc.w $000,$656,$766,$766,$777,$777,$777,$777,$777,$775,$774,$774,$774,$674,$664,$445 ;11
dc.w $000,$545,$655,$755,$766,$766,$776,$777,$777,$774,$773,$773,$673,$573,$553,$334 ;12
dc.w $000,$434,$544,$644,$755,$755,$775,$776,$777,$773,$772,$672,$572,$462,$442,$223 ;13
dc.w $000,$323,$433,$533,$644,$744,$764,$775,$777,$772,$671,$571,$461,$351,$331,$112 ;14
dc.w $000,$212,$322,$422,$533,$633,$653,$774,$777,$671,$570,$460,$350,$240,$220,$001
ELSE
dc.w $000,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111,$111 ;1
dc.w $000,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222,$222 ;2
dc.w $000,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333,$333 ;3
dc.w $000,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444,$444 ;4
dc.w $000,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555,$555 ;5
dc.w $000,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666,$666 ;6
dc.w $000,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777 ;7
dc.w $000,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777 ;8
dc.w $000,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$776,$776,$666 ;9
dc.w $000,$767,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$777,$775,$775,$555 ;10
dc.w $000,$656,$766,$767,$777,$777,$777,$777,$777,$777,$777,$776,$777,$774,$664,$444 ;11
dc.w $000,$545,$655,$756,$766,$777,$777,$777,$777,$777,$776,$775,$677,$663,$553,$333 ;12
dc.w $000,$434,$544,$645,$755,$766,$777,$777,$777,$776,$775,$674,$566,$552,$442,$222 ;13
dc.w $000,$323,$433,$534,$644,$755,$766,$777,$777,$775,$664,$563,$455,$441,$331,$111 ;14
dc.w $000,$212,$322,$423,$533,$644,$655,$776,$777,$664,$553,$452,$341,$330,$220,$000 ;15
ENDC
rotozoom_vbl
addq.w #1,$466.w
addq.w #1,cummulativeCount
addq.w #1,vblCounter
subq.w #1,effect_vbl_counter
move.w #$0,$ffff8240
subq.w #1,tbwait
blt .doOpen
cmp.w #$4e75,movePlasmaBars
beq .normalTB
.transitionActive
clr.b $fffffa1b.w ;Timer B control (stop)
bset #0,$fffffa07.w ;Interrupt enable A (Timer B)
bset #0,$fffffa13.w ;Interrupt mask A (Timer B)
move.l #timer_b_open_curtain_stable_horbars,$120.w
move.b #188,$fffffa21.w ;Timer B data
move.b #4,$fffffa1b.w ;Timer B control (delay mode)
bclr #3,$fffffa17.w ;Automatic end of interrupt
jmp .doClose
.normalTB
clr.b $fffffa1b.w ;Timer B control (stop)
bset #0,$fffffa07.w ;Interrupt enable A (Timer B)
bset #0,$fffffa13.w ;Interrupt mask A (Timer B)
move.l #timer_b_open_curtain_stable,$120.w
move.b #188,$fffffa21.w ;Timer B data
move.b #4,$fffffa1b.w ;Timer B control (delay mode)
bclr #3,$fffffa17.w ;Automatic end of interrupt
jmp .doClose
.doOpen
clr.b $fffffa1b.w ;Timer B control (stop)
bset #0,$fffffa07.w ;Interrupt enable A (Timer B)
bset #0,$fffffa13.w ;Interrupt mask A (Timer B)
move.b #1,$fffffa21.w ;Timer B data (number of scanlines to next interrupt)
move.l #tboc3,$120.w
bclr #3,$fffffa17.w ;Automatic end of interrupt
move.b #8,$fffffa1b.w
.doClose
pushall
IFEQ C2P_ROTOZ_TEXTURE_FROM_PLANAR
movem.l planarpic+4,d0-d7
movem.l d0-d7,$ffff8240
ELSE
movem.l rotozpal,d0-d7
movem.l d0-d7,$ffff8240
subq.w #1,.fadeww
bge .kkk
lea fadeToTransitionTable,a0
add.w fadeTransitionOff,a0
movem.l (a0),d0-d7
movem.l d0-d7,$ffff8240
sub.w #32,fadeTransitionOff
bge .kkk
move.w #0,fadeTransitionOff
.kkk
ENDC
subq.w #1,.remove
bge .noremove
; move.b #0,$ffffc123
jsr removePanelLamelsRotozoom
.noremove
IFNE STANDALONE
IFEQ USE_MYM_DUMP
jsr replayMymDump
ELSE
jsr musicPlayer+8
ENDC
ENDC
popall
rte
.remove dc.w ROTO_PANEL_OUT_VBL
.fadeww dc.w ROTO_EFFECT_VBL-10
rotozpal ds.w 16
IFEQ STANDALONE
timer_b_open_curtain
move.w #$222,$ffff8240
clr.b $fffffa1b.w ;Timer B control (stop)
move.b #199,$fffffa21.w ;Timer B data (number of scanlines to next interrupt)
move.l #timer_b_close_curtain,$120.w
move.b #8,$fffffa1b.w ;Timer B control (event mode (HBL))
rte
timer_b_close_curtain
move.w #$0,$ffff8240
rte
ENDC
tboc3
move.w #$111,$ffff8240
move.b #0,$fffffa1b.w ;Timer B control (stop)
move.b #198,$fffffa21.w ;Timer B data (number of scanlines to next interrupt)
move.l #open_lower_border4,$120.w
move.b #8,$fffffa1b.w ;Timer B control (event mode (HBL))
rte
open_lower_border4
move.w #$2700,sr
movem.l d0/a0/a1,-(sp)
move.b $FFFFFA21.w,D0
.tb_sync:
cmp.b $FFFFFA21.w,D0 ; wait for end of the line
beq.s .tb_sync
move.b #0,$FFFF820A.w
REPT 16
nop ; 12 nops ;64
ENDR
move.b #2,$FFFF820A.w ; 50 hz
move.w #$0,$ffff8240
lea .tab,a0
add.w .off,a0
lea .tabFull,a1
add.w (a0),a1
lea $ffff8240+1*2,a0
REPT 7
move.l (a1)+,(a0)+
ENDR
move.w (a1)+,(a0)+
cmp.w #30*2,.off
beq .testwait
jmp .subber
.testwait
subq.w #1,tboc3framewait
bge .kk
.subber
sub.w #2,.off
bge .kk
; move.w #120,tbwait
; move.w #65*2,.off
; subq.w #1,botTimes
; bgt .kk
move.w #32000,tbwait
move.w #65*2,.off
.kk
movem.l (sp)+,d0/a0/a1
rte
.off dc.w 65*2
;--------------
;DEMOPAL - palette for underline
;--------------
.tabFull
dc.w $000,$000,$000,$000,$000,$000,$000,$000,$000,$000,$000,$000,$000,$000,$000 ;0
dc.w $100,$111,$100,$100,$100,$111,$111,$110,$111,$110,$110,$110,$110,$111,$100 ;30
dc.w $100,$111,$110,$200,$210,$221,$222,$220,$222,$221,$221,$220,$110,$111,$100 ;60
dc.w $100,$211,$210,$310,$310,$321,$333,$331,$332,$332,$331,$220,$110,$211,$100 ;90
dc.w $200,$211,$310,$411,$420,$421,$443,$442,$444,$442,$441,$330,$220,$211,$110 ;120
dc.w $201,$311,$320,$421,$520,$531,$542,$553,$555,$553,$442,$330,$220,$221,$110 ;150
dc.w $201,$311,$420,$521,$620,$632,$653,$664,$666,$653,$552,$440,$330,$221,$110 ;180
dc.w $201,$311,$421,$521,$630,$642,$653,$774,$777,$664,$552,$440,$330,$221,$110 ;210
.tab
dc.w 0
dc.w 30 ;1
dc.w 30 ;2
dc.w 30 ;3
dc.w 60 ;4
dc.w 60 ;5
dc.w 90 ;6
dc.w 120 ;7
dc.w 120 ;8
dc.w 150 ;9
dc.w 150 ;10
dc.w 150
dc.w 150
dc.w 180
dc.w 180
dc.w 180
dc.w 180
dc.w 180
dc.w 180
dc.w 210
dc.w 210 ;20
dc.w 210
dc.w 210
dc.w 210
dc.w 210
dc.w 210
dc.w 210
dc.w 210
dc.w 210
dc.w 210
dc.w 210 ;30 ;---> first color high
dc.w 210
dc.w 180
dc.w 180
dc.w 180
dc.w 180
dc.w 180
dc.w 150
dc.w 150
dc.w 150
dc.w 150 ;40
dc.w 120
dc.w 120
dc.w 90
dc.w 60
dc.w 60
dc.w 30
dc.w 30
dc.w 30
dc.w 0
dc.w 0 ;50
dc.w 0
dc.w 0
dc.w 0
dc.w 0
dc.w 0
dc.w 0
dc.w 0
dc.w 0
dc.w 0
dc.w 0 ;60
dc.w 0 ;61
dc.w 0 ;62
dc.w 0 ;63
dc.w 0 ;64
dc.w 0 ;65
dc.w 0
dc.w 0
dc.w 0
tboc3framewait dc.w 140
generateC2PLookupTable
move.l c2plookuptablepointer,a4
; move.l a4,a5
; add.l #262144,a5 ; 16*16*16*16*4
lea TAB3,a5
lea TAB4,a6
.loop
lea TAB1,a3
move.l #16-1,d7
.l4
lea TAB2,a2
moveq #16-1,d6
move.l (a3)+,d3
.l3
; lea TAB3,a1
move.l a5,a1
moveq #16-1,d5
move.l (a2)+,d2
add.l d3,d2
.l2
; lea TAB4,a0
move.l a6,a0
move.l (a1)+,d1
add.l d2,d1
; move.l #16-1,d4
;.l1
REPT 16
move.l (a0)+,d0 ;12 move.l d1,d2 ;4
add.l d1,d0 ;8 add.l (a0)+,d2 ;16
move.l d0,(a4)+ ;12 -> 32 move.l d2,(a4)+ ;12
; move.l d0,(a5)+
ENDR
; dbra d4,.l1
dbra d5,.l2
dbra d6,.l3
dbra d7,.l4
rts
IFEQ C2P_ROTOZ_TEXTURE_FROM_PLANAR
planarToChunkyRoto
move.l a1,a2
move.l #128-1,d6
.height
move.l #8-1,d7
.width
movem.w (a0)+,d0-d3 ; 4 words
REPT 16
moveq #0,d4
moveq #0,d5
roxl.w d5
roxl.w d3
roxl.w d4
roxl.w d2
roxl.w d4
roxl.w d1
roxl.w d4
roxl.w d0
roxl.w d4
move.b d4,(a1)+ ; 128 * 8 * 16 = 16k
ENDR
dbra d7,.width
; 320 width is 160 bytes
; 128 width is 64 bytes
; 160-64 added
add.w #160-64,a0
dbra d6,.height
sub.l a2,a1 ;16384
; move.b #0,$ffffc123
rts
ENDC
generateTextureTables
move.l chunkytextpointer,a0
move.l text1pointer,a1
move.l a1,a3
add.l #$10000,a3
move.l text2pointer,a2
move.l a2,a4
add.l #$10000,a4
move.l c2plookuptablepointer,d1
move.w #2048-1,d7
.loop
.off set 0
REPT 8
moveq #0,d0 ;4
move.b (a0)+,d0 ;8
lsl.w #6,d0 ;20
move.w d0,.off+2(a2) ;12
move.w d0,.off+2(a4) ;12
lsl.w #4,d0 ;16
move.w d0,.off(a2) ;8
move.w d0,.off(a4) ;8
lsl.l #4,d0 ;16
add.l d1,d0 ;8
move.l d0,(a1)+ ;12
move.l d0,(a3)+ ;12
.off set .off+4
ENDR
lea 32(a2),a2
lea 32(a4),a4
dbra d7,.loop
rts
cp2
movem.l (a6)+,d0-d7/a0-a5 ;56 124 ;4 104
movem.l d0-d7/a0-a5,160-56(a6) ; 124 ;6
movem.l (a6)+,d0-d5/a0-a3 ;4
movem.l d0-d5/a0-a3,160-40(a6) ;6
lea 160+64(a6),a6 ; 8 ;4
generateDoubleScanlines
move.l doublescanlinespointer,a1
move.w #viewport_height_lines-1,d7
movem.l cp2,d0-d5
.copy2
movem.l d0-d5,(a1)
add.w #24,a1
dbra d7,.copy2
move.w #$4e75,(a1)+
rts
smccode
move.w d0,d2 ;2 ; %.XXX XXXX xxxx xxxx 4
move.b d1,d2 ;2 ; %.XXX XXXX YYYY YYYy 4
and.w d5,d2 ;2 ; %.XXX XXXX YYYY YYY. 4
add.w d2,d2 ;2 ; %XXXX XXXY YYYY YY.. 4
move.w d2,2(a0) ;4 ; 8
add.l d3,d0 ;2 ; $yy.. XXxx 8
addx.b d4,d1 ;2 ; %YYYY YYYy 4 --> 9
;add.l d1,d0 ;8 ..YY yyyy ;d6 = 01fc --> %0000 0001 1111 1100
;add.w d3,d2 ;4 .... XXxx ;d7 = fe00 --> %1111 1110 0000 0000
;move.l d0,d5 ;4 ..YY yyyy
;swap d5 ;4 yyyy ..YY
;and.w d6,d5 ;4 .... 00YY
;move.w d2,d4 ;4 .... XXxx
;and.w d7,d4 ;4 .... XX00
;add.w d4,d5 ;4 .... XXYY
;move.w d5,x(a0) ;12 --> 48
; move.l d0,d5
; swap d5
; and.w d6,d5
; move.w d2,d4
; and.w d7,d4
; add.w d4,d5
; move.w d5,o(a6)
; move.w d0,d2 ;2
; move.b d1,d2 ;2
; and.w d5,d2 ;2
; add.w d2,d2 ;2
; move.w d2,o+6(a0) ;4
; add.l d3,d0 ;2
; addx.b d4,d1 ;2
;
; move.w d0,d2 ;2
; move.b d1,d2 ;2
; and.w d5,d2 ;2
; add.w d2,d2 ;2
; addq.w #2,d2 ;2
; move.w d2,o+10(a0) ;4
; add.l d3,d0 ;2
; addx.b d4,d1 ;2
;
; move.w d0,d2 ;2
; move.b d1,d2 ;2
; and.w d5,d2 ;2
; add.w d2,d2 ;2
; move.w d2,o+14(a0) ;4
; add.l d3,d0 ;2
; addx.b d4,d1 ;2
generateRotoCode
lea smccode,a0
move.l rotosmcpointer,a1
move.l (a0)+,d0 ; move.w d0,d2 ; move.b d1,d2
move.l (a0)+,d1 ; and.w d5,d2 ; add.w d2,d2
move.l (a0)+,d2 ; move.w d2,x(a0) offset
move.l (a0)+,d3 ; add.l d3,d0 ; addx.b d4,d1
move.w #$5442,d4 ; addq.w #2,d2
move.w #2,d5 ; offset
moveq #0,d6
move.w #24,a2
move.w #viewport_width_blocks*2-1,d7
.generate
move.w d6,d5
addq.w #2,d5
; first; off = 2
move.l d0,(a1)+
move.l d1,(a1)+
move.l d2,(a1)+
move.w d5,-2(a1)
move.l d3,(a1)+
; off = off + 4
addq.w #4,d5
; second
move.l d0,(a1)+
move.l d1,(a1)+
move.l d2,(a1)+
move.w d5,-2(a1)
move.l d3,(a1)+
; off = off + 4
addq.w #4,d5
; third
move.l d0,(a1)+
move.l d1,(a1)+
move.w d4,(a1)+ ; addq.w #2,d2
move.l d2,(a1)+
move.w d5,-2(a1)
move.l d3,(a1)+
; off = off +4
addq.w #4,d5
; forth
move.l d0,(a1)+
move.l d1,(a1)+
move.l d2,(a1)+
move.w d5,-2(a1)
move.l d3,(a1)+
; next!
add.w a2,d6
dbra d7,.generate
move.w #$4E75,(a1)+
rts
_frameCounter dc.w 0
rotoCenter
dc.w $8000
dc.w $8000
Rotv_int_pos
dc.w 0
Rotuv_pos
dc.l 0
Rotv_int_inc
dc.w 0
Rotuv_inc
dc.l 0
Rotorg_offset
dc.w 0
doRotoZoom
lea sine_tbl3,a0 ;8
lea sine_tbl3+(sintable_size/4),a1 ;8
move.w _frameCounter,d0 ;12
sub.w #8,d0 ;8
move.w d0,_frameCounter ; save time ;16
move.w #sintable_size-2,d7 ; sine max size mask
move.w d0,d1 ; save to d1 ;4
move.w d0,d6 ; save to d6 ;4
; add.w d1,d1
; add.w d1,d1
; add.w d1,d1
and.w d7,d1 ;4
; move.w d1,d2
; move.w d1,d3
; move.w d1,d3 ;4
move.w (a0,d1.w),d2 ; sin() -> d2 ;16
; move.w (a0,d1.w),d3 ; sin() -> d3 ;16
move.w (a0,d1.w),d3
add.w d3,d3
add.w d3,d3
move.w d3,d1
add.w d3,d3
add.w d1,d3
; move.w #$8000,d3
add.w d2,d2
add.w d2,d2
move.w d2,d1
add.w d2,d2
add.w d1,d2
add.w #$800,d2
; move.w d2,d1
; add.w d2,d2
; add.w d2,d2
; add.w d1,d2
; add.w #$8000,d2
;; add.w d2,d2
; move.w d2,d1
; add.w d2,d2
; move.w d2,d3
; add.w d1,d2
; add.w d2,d2
; move.w d2,d3
movem.w d2/d3,rotoCenter ;24 --> 290
.calc_xy_rot:
; add.w d0,d0 ;4 rotation
move.w d0,d1
; add.w d0,d0 ;4
add.w d0,d0
; add.w d0,d0
add.w d1,d0 ;4
and.w d7,d0 ;4
move.w (a1,d0.w),d1 ; cos
move.w (a0,d0.w),d0 ; sin
move.w d1,d2 ; cos(x) ;4
neg.w d2 ;-cos(x) ;4
move.w d0,d3 ; sin(x) ;4
; d2.w: a'.x, d3.w: a'.y
; d2 1.x -cos -y vertical
; d3 1.y sin x
move.w d0,d4 ;4
move.w d1,d5 ;4
; add.w d5,d5
; d4 2.x sin x horizontal
; d5 2.y cos y
; And we calculate the amount of zoom... based on time
; add.w d6,d6
; add.w d6,d6
; add.w d6,d6 ;4
; add.w d6,d6 ;4
; asl.w #4,d6
add.w d6,d6
add.w d6,d6
add.w d6,d6
; add.w d6,d6
and.w d7,d6 ;4
move.w (a1,d6.w),d6
asr.w #6,d6 ;7 ;18
add.w #$380,d6 ;280 ;10 --> 184
muls.w d6,d2 ;50 1.x -cos A
muls.w d6,d3 ;52 1.y sin
muls.w d6,d4 ;52 2.x sin B
muls.w d6,d5 ;52 2.y cos
add.l d3,d3 ;8
add.l d5,d5 ;8
swap d2 ;4
swap d3 ;4
swap d4 ;4
swap d5 ;4 --> 238
movem.w rotoCenter,d6/d7 ;24
asr.w d6 ;10
move.l d2,d0 ;4
move.l d3,d1 ;4
movea.l d4,a4 ;4
movea.l d5,a5 ;4 --> 50 --> 762
muls #50,d0
muls #50,d1
add.l d0,d6
add.l d1,d7
muls.w #50,d4
muls.w #50,d5
sub.l d4,d6
sub.l d5,d7
; sub.l #$a00,d6