; Martymation implementation ; based on the animation routines by ; Martin Kahn found on side B of the Broderbund Color Printshop Disk, Side 2 ; by Vince `deater` Weaver ; 6121 bytes -- start ; 6075 bytes -- first pass of optimizing ; 6061 bytes -- remove configurable window ; 5679 bytes -- use HPOSN instead of lookuptable for HGR addresses ; 5478 bytes -- generate even table ; 5293 bytes -- generate odd table ; zero page locations NIBCOUNT = $00 HGR_BITS = $1C GBASL = $26 GBASH = $27 ROW = $82 ; D0+ used by HGR routines HGR_COLOR = $E4 HGR_PAGE = $E6 TEMP = $FF ; soft-switches KEYPRESS = $C000 KEYRESET = $C010 SET_GR = $C050 FULLGR = $C052 PAGE1 = $C054 HIRES = $C057 ; ROM routines HGR2 = $F3D8 ; set hires page2 and clear $4000-$5fff HGR = $F3E2 ; set hires page1 and clear $2000-$3fff HPOSN = $F411 ; set GBASL/H to (Y,X),A HPLOT0 = $F457 ; plot at (Y,X), (A) HCOLOR1 = $F6F0 ; set HGR_COLOR to value in X WAIT = $FCA8 ; delay 1/2(26+27A+5A^2) us even_table = $9000 odd_table = $9100 martymation: jsr HGR2 ; decompress images ; lda #<(page0_lzsa) ; sta getsrc_smc+1 ; lda #>(page0_lzsa) ; sta getsrc_smc+2 ; lda #$20 ; jsr decompress_lzsa2_fast ; lda #<(page1_lzsa) ; sta getsrc_smc+1 ; lda #>(page1_lzsa) ; sta getsrc_smc+2 ; lda #$40 ; jsr decompress_lzsa2_fast ;================================ ; Setup Tables ;================================ ldy #0 even_loop: tya and #$f bne skip_even_inc inc even_smc+1 skip_even_inc: tax lda even_helper,X even_smc: ora even_helper2-1 sta even_table,Y iny bne even_loop ;================ ; odd table ldy #0 ; already 0? odd_loop: tya and #$f php cmp #$8 bcs odd_toggle ldx #$00 beq odd_store ; bra odd_toggle: ldx #$10 odd_store: stx TEMP plp bne skip_odd_inc inc odd_smc+1 skip_odd_inc: tax lda odd_helper,X odd_smc: ora odd_helper2-1 eor TEMP sta odd_table,Y iny bne odd_loop ;================================ ; Start Animation ;================================ start_animation: ldy #$40 ; set draw page to PAGE2 ($4000) sty draw_page ldx #$00 stx display_page ; set display page to PAGE1 inx ; but move it to PAGE2? animate_loop: lda PAGE1,X ; set page txa ; switch display page eor #$01 ; by flipping low bit tax lda draw_page ; switch draw page $4000 <-> $2000 eor #$60 ; 0100 -> 0010, 0010 -> 0100 sta draw_page stx disp_page2 ; ??????? lda #$11 jsr WAIT ; pause a bit ;============================== ; cycle colors ;============================== cycle_colors: ldy #1 ; we always start at row1 row_loop: sty ROW ; which ROW we are working on tya ldx #0 ldy #0 jsr HPOSN ; put GBASL/H from (Y,X),(A) lda GBASH and #$1f ora draw_page sta GBASH ldy #0 ; always start column 0 col_loop: lda (GBASL),Y ; get current value tax lda even_table,X ; translate with even col table sta (GBASL),Y iny ; point to next column asl ; shift color left by two asl ; this puts bit 6 into carry lda (GBASL),Y ; get next column bcs dont_toggle ; if bit 6 set, leave next alone eor #$01 ; otherwise toggle low bit dont_toggle: tax lda odd_table,X ; translate using odd col table sta (GBASL),Y ; store out iny ; point to next column cpy #$28 ; loop until done bne col_loop ldy ROW ; ROW=ROW+2 iny iny cpy #192 ; see if we are done bcc row_loop ; if less than, then loop ; done inline cycle colors ldx disp_page2 ; get which page to display jmp animate_loop ; FIXME even_helper: .byte $05,$06,$07,$04,$09,$0a,$0b,$08, $0d,$0e,$0f,$0c,$01,$02,$03,$00 ; 85d9...85e8 even_helper2: .byte $50,$60,$70,$40,$10,$20,$30,$00, $d0,$e0,$f0,$c0,$90,$a0,$b0,$80 ;even_table: ; $85d9 ... $86d8 ;.byte $55,$56,$57,$54,$59,$5a,$5b,$58, $5d,$5e,$5f,$5c,$51,$52,$53,$50 ; 85d9...85e8 ;.byte $65,$66,$67,$64,$69,$6a,$6b,$68, $6d,$6e,$6f,$6c,$61,$62,$63,$60 ; ;.byte $75,$76,$77,$74,$79,$7a,$7b,$78, $7d,$7e,$7f,$7c,$71,$72,$73,$70 ; ;.byte $45,$46,$47,$44,$49,$4a,$4b,$48, $4d,$4e,$4f,$4c,$41,$42,$43,$40 ; ...8618 ;.byte $15,$16,$17,$14,$19,$1a,$1b,$18, $1d,$1e,$1f,$1c,$11,$12,$13,$10 ; ;.byte $25,$26,$27,$24,$29,$2a,$2b,$28, $2d,$2e,$2f,$2c,$21,$22,$23,$20 ; ;.byte $35,$36,$37,$34,$39,$3a,$3b,$38, $3d,$3e,$3f,$3c,$31,$32,$33,$30 ; ...8648 ;.byte $05,$06,$07,$04,$09,$0a,$0b,$08, $0d,$0e,$0f,$0c,$01,$02,$03,$00 ; ;.byte $d5,$d6,$d7,$d4,$d9,$da,$db,$d8, $dd,$de,$df,$dc,$d1,$d2,$d3,$d0 ; ;.byte $e5,$e6,$e7,$e4,$e9,$ea,$eb,$e8, $ed,$ee,$ef,$ec,$e1,$e2,$e3,$e0 ; ...8678 ;.byte $f5,$f6,$f7,$f4,$f9,$fa,$fb,$f8, $fd,$fe,$ff,$fc,$f1,$f2,$f3,$f0 ; ;.byte $c5,$c6,$c7,$c4,$c9,$ca,$cb,$c8, $cd,$ce,$cf,$cc,$c1,$c2,$c3,$c0 ; ;.byte $95,$96,$97,$94,$99,$9a,$9b,$98, $9d,$9e,$9f,$9c,$91,$92,$93,$90 ; ;.byte $a5,$a6,$a7,$a4,$a9,$aa,$ab,$a8, $ad,$ae,$af,$ac,$a1,$a2,$a3,$a0 ; ...86b8 ;.byte $b5,$b6,$b7,$b4,$b9,$ba,$bb,$b8, $bd,$be,$bf,$bc,$b1,$b2,$b3,$b0 ; ;.byte $85,$86,$87,$84,$89,$8a,$8b,$88, $8d,$8e,$8f,$8c,$81,$82,$83,$80 ; ;.byte $55,$56,$57,$54,$59,$5a,$5b,$58, $5d,$5e,$5f,$5c,$51,$52,$53,$50 ; 85d9...85e8 ;0101 0101 0101 0111 0101 1101 ;0010 1010 0010 1100 0011 0010 odd_helper: .byte $0a,$0b,$0c,$0d,$0e,$0f,$08,$09, $02,$03,$04,$05,$06,$07,$00,$01 ; 85d9...85e8 odd_helper2: .byte $20,$30,$40,$50,$60,$70,$00,$10, $a0,$b0,$c0,$d0,$e0,$f0,$80,$90 ;odd_table: ; $86d9 ... $87d8 ;.byte $2a,$2b,$2c,$2d,$2e,$2f,$28,$29, $32,$33,$34,$35,$36,$37,$30,$31 ; 86d9...86e8 ;.byte $3a,$3b,$3c,$3d,$3e,$3f,$38,$39, $22,$23,$24,$25,$26,$27,$20,$21 ; ;.byte $4a,$4b,$4c,$4d,$4e,$4f,$48,$49, $52,$53,$54,$55,$56,$57,$50,$51 ; ;.byte $5a,$5b,$5c,$5d,$5e,$5f,$58,$59, $42,$43,$44,$45,$46,$47,$40,$41 ; ;.byte $6a,$6b,$6c,$6d,$6e,$6f,$68,$69, $72,$73,$74,$75,$76,$77,$70,$71 ; ;.byte $7a,$7b,$7c,$7d,$7e,$7f,$78,$79, $62,$63,$64,$65,$66,$67,$60,$61 ; ;.byte $0a,$0b,$0c,$0d,$0e,$0f,$08,$09, $12,$13,$14,$15,$16,$17,$10,$11 ; ;.byte $1a,$1b,$1c,$1d,$1e,$1f,$18,$19, $02,$03,$04,$05,$06,$07,$00,$01 ; ;.byte $aa,$ab,$ac,$ad,$ae,$af,$a8,$a9, $b2,$b3,$b4,$b5,$b6,$b7,$b0,$b1 ; ;.byte $ba,$bb,$bc,$bd,$be,$bf,$b8,$b9, $a2,$a3,$a4,$a5,$a6,$a7,$a0,$a1 ; ;.byte $ca,$cb,$cc,$cd,$ce,$cf,$c8,$c9, $d2,$d3,$d4,$d5,$d6,$d7,$d0,$d1 ; ;.byte $da,$db,$dc,$dd,$de,$df,$d8,$d9, $c2,$c3,$c4,$c5,$c6,$c7,$c0,$c1 ; ;.byte $ea,$eb,$ec,$ed,$ee,$ef,$e8,$e9, $f2,$f3,$f4,$f5,$f6,$f7,$f0,$f1 ; ;.byte $fa,$fb,$fc,$fd,$fe,$ff,$f8,$f9, $e2,$e3,$e4,$e5,$e6,$e7,$e0,$e1 ; ;.byte $8a,$8b,$8c,$8d,$8e,$8f,$88,$89, $92,$93,$94,$95,$96,$97,$90,$91 ; ;.byte $9a,$9b,$9c,$9d,$9e,$9f,$98,$99, $82,$83,$84,$85,$86,$87,$80,$81 ; draw_page: .byte $20 display_page: .byte $00 disp_page2: .byte $00 ;.include "decompress_fast_v2.s" ;.include "graphics/asteroid.inc"