plasmag: more size opt
This commit is contained in:
Vince Weaver
parent
29564f6762
commit
ee04e5f042
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@ -7,11 +7,12 @@ EMPTYDISK = ../../../empty_disk/empty.dsk
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all: plasmag.dsk
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plasmag.dsk: HELLO PLASMAG PLASMAG_FULL
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plasmag.dsk: HELLO PLASMAG PLASMAG_FULL PLASMAG_TINY
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cp $(EMPTYDISK) plasmag.dsk
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$(DOS33) -y plasmag.dsk SAVE A HELLO
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$(DOS33) -y plasmag.dsk BSAVE -a 0x4000 PLASMAG
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$(DOS33) -y plasmag.dsk BSAVE -a 0x4000 PLASMAG_FULL
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$(DOS33) -y plasmag.dsk BSAVE -a 0x4000 PLASMAG_TINY
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###
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@ -28,6 +29,14 @@ plasmag.o: plasmag.s
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###
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PLASMAG_TINY: plasmag_tiny.o
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ld65 -o PLASMAG_TINY plasmag_tiny.o -C $(LINKERSCRIPTS)/apple2_4000.inc
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plasmag_tiny.o: plasmag_tiny.s gr_gbascalc.s
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ca65 -o plasmag_tiny.o plasmag_tiny.s -l plasmag_tiny.lst
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###
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PLASMAG_FULL: plasmag_full.o
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ld65 -o PLASMAG_FULL plasmag_full.o -C $(LINKERSCRIPTS)/apple2_4000.inc
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@ -0,0 +1,80 @@
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; 11+48 = 59 bytes
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gr_setup_line:
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lda gr_lookup_low,X ; 4
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sta GBASL ; 3
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lda gr_lookup_high,X ; 4
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sta GBASH ; 3
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rts
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gr_lookup_low:
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.byte $00,$80,$00,$80,$00,$80,$00,$80
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.byte $28,$A8,$28,$A8,$28,$A8,$28,$A8
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.byte $50,$D0,$50,$D0,$50,$D0,$50,$D0
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gr_lookup_high:
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.byte $08,$08,$09,$09,$0A,$0A,$0B,$0B
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.byte $08,$08,$09,$09,$0A,$0A,$0B,$0B
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.byte $08,$08,$09,$09,$0A,$0A,$0B,$0B
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; 28+10 = 38
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gr_setup_line2:
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txa
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pha
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and #7
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lsr
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tax
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lda gr_lookup_high2,X
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sta GBASH
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pla
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pha
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lsr
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php
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lsr
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lsr
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plp
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rol
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tax
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lda gr_lookup_low2,X
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sta GBASL
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pla
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tax
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rts
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; high= gr_lookup_high[(line&3)>>1]
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; low = gr_lookup_low[abc defgh -> 0 1 0 1 0 1 2 3 2 3 2 3 2 3 4 5 4 5 4 5 4 5
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; deh
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gr_lookup_low2:
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.byte $00,$80,$28,$A8,$50,$D0
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gr_lookup_high2:
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.byte $08,$09,$0A,$0B
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; 24 bytes
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; based on GBASCALC from monitor firmware
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gr_setup_line3:
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txa ; 2
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lsr ; 2
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and #$03 ; 2
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ora #$08 ; 2
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sta GBASH ; 3
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txa
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and #$18
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bcc gbcalc
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adc #$7f
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gbcalc:
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sta GBASL
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asl
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asl
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ora GBASL
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sta GBASL
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rts
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gr_setup_line4:
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txa
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jmp GBASCALC
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@ -1,2 +1,2 @@
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5 HOME
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10 PRINT CHR$(4)"BRUN PLASMAG"
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10 PRINT CHR$(4)"BRUN PLASMAG_TINY"
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@ -5,6 +5,10 @@
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; this is just part3 and size optimized
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; just the graphics, no music
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; Note: look into modifying color lookup table
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; there's a wide setting that gives a slightly different effect
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.include "hardware.inc"
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; Page Zero
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@ -0,0 +1,209 @@
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; PLASMAGORIA, Tiny version
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; original code by French Touch
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; trying to see how small I can get it
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; note can use $F000 (or similar) for color lookup to get passable
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; effect on fewer bytes
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.include "hardware.inc"
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Table1 = $8000
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Table2 = $8000+64
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; Page Zero
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GBASL = $26
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GBASH = $27
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COMPT1 = $30
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COMPT2 = $31
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PARAM1 = $60
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PARAM2 = $61
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PARAM3 = $62
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PARAM4 = $63
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; =============================================================================
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; ROUTINE MAIN
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; =============================================================================
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plasma_debut:
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bit PAGE1 ; set page 1
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bit SET_GR ; set graphics
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bit LORES ; set lo-res
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jsr init_lores_colors
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do_plasma:
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; init
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lda #02
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sta COMPT2
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sta PARAM1
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sta PARAM2
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sta PARAM3
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sta PARAM4
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BP3:
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jsr precalc ; pre-calc
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jsr display_normal ; display normal
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inc COMPT1
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bne BP3
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dec COMPT2
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bne BP3
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jmp do_plasma
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; ============================================================================
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; Precalculate some values
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; ROUTINES PRE CALCUL
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; ============================================================================
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precalc:
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lda PARAM1 ; self modify various parts
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sta pc_off1+1
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lda PARAM2
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sta pc_off2+1
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lda PARAM3
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sta pc_off3+1
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lda PARAM4
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sta pc_off4+1
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; Table1(X) = sin1(PARAM1+X)+sin2(PARAM1+X)
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; Table2(X) = sin3(PARAM3+X)+sin1(PARAM4+X)
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ldx #$28 ; 40
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pc_b1:
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pc_off1:
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lda sin1
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pc_off2:
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adc sin2
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sta Table1,X
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pc_off3:
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lda sin3
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pc_off4:
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adc sin1
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sta Table2,X
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inc pc_off1+1
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inc pc_off2+1
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inc pc_off3+1
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inc pc_off4+1
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dex
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bpl pc_b1
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inc PARAM1
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inc PARAM1
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dec PARAM2
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inc PARAM3
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dec PARAM4
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rts
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; ============================================================================
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; Display Routines
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; ROUTINES AFFICHAGES
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; ============================================================================
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; Display "Normal"
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; AFFICHAGE "NORMAL"
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display_normal:
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ldx #23 ; lines 0-23 lignes 0-23
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display_line_loop:
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txa
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jsr GBASCALC
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ldy #39 ; col 0-39
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lda Table2,X ; setup base sine value for row
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sta display_row_sin_smc+1
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display_col_loop:
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lda Table1,Y ; load in column sine value
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display_row_sin_smc:
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adc #00 ; add in row value
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sta display_lookup_smc+1 ; patch in low byte of lookup
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display_lookup_smc:
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lda lores_colors_fine ; attention: must be aligned
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sta (GBASL),Y
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dey
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bpl display_col_loop
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dex
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bpl display_line_loop
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rts
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lores_colors_fine=$8100
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init_lores_colors:
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ldx #0
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ldy #0
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init_lores_colors_loop:
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lda lores_colors_lookup,X
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sta lores_colors_fine,Y
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iny
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sta lores_colors_fine,Y
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iny
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sta lores_colors_fine,Y
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iny
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sta lores_colors_fine,Y
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iny
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beq done_init_lores_colors
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inx
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txa
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and #$f
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tax
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jmp init_lores_colors_loop
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done_init_lores_colors:
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rts
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lores_colors_lookup:
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.byte $00,$88,$55,$99,$ff,$bb,$33,$22,$66,$77,$44,$cc,$ee,$dd,$99,$11
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.align 256
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; This appears to be roughly 47+32*sin(x)+16*sin(2x)
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sin1: ; 256
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.byte $2E,$30,$32,$34,$35,$36,$38,$3A,$3C,$3C,$3E,$40,$41,$42,$44,$45,$47,$47,$49,$4A,$4B,$4C,$4D,$4E,$4F,$50,$51,$52,$53,$53,$54,$54
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.byte $55,$55,$56,$57,$57,$58,$58,$57,$58,$58,$58,$58,$58,$58,$58,$58,$58,$57,$57,$57,$56,$56,$55,$54,$55,$54,$53,$52,$52,$51,$50,$4F
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.byte $4E,$4E,$4D,$4C,$4B,$4B,$4A,$49,$48,$47,$46,$45,$45,$44,$42,$42,$41,$41,$3F,$3F,$3D,$3D,$3C,$3B,$3B,$39,$39,$39,$38,$38,$37,$36
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.byte $36,$35,$35,$34,$34,$33,$32,$32,$32,$31,$31,$31,$30,$31,$30,$30,$30,$30,$2F,$2F,$30,$2F,$2F,$2F,$2F,$2F,$2F,$2F,$2E,$2F,$2F,$2F
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.byte $2E,$2F,$2F,$2F,$2F,$2E,$2F,$2F,$2F,$2E,$2F,$2F,$2E,$2E,$2F,$2E,$2E,$2D,$2E,$2D,$2D,$2D,$2C,$2C,$2C,$2B,$2B,$2B,$2A,$2A,$29,$28
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.byte $28,$27,$27,$26,$26,$25,$25,$23,$23,$22,$21,$21,$20,$1F,$1F,$1D,$1D,$1C,$1B,$1A,$19,$19,$17,$16,$16,$15,$14,$13,$13,$12,$11,$10
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.byte $0F,$0F,$0E,$0D,$0C,$0C,$0B,$0A,$09,$09,$08,$08,$08,$07,$06,$07,$06,$06,$06,$06,$05,$06,$05,$05,$06,$05,$06,$06,$07,$07,$08,$08
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.byte $09,$09,$0A,$0B,$0B,$0C,$0C,$0D,$0F,$0F,$10,$12,$12,$14,$15,$16,$17,$19,$1A,$1B,$1D,$1E,$20,$21,$22,$24,$26,$27,$28,$2A,$2C,$2E
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; This appears to be roughly 47+32*sin(4x)+16*sin(3x)
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sin2: ; 256
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.byte $2E,$33,$38,$3C,$40,$43,$47,$4B,$4E,$51,$54,$56,$59,$5A,$5C,$5D,$5D,$5E,$5E,$5D,$5C,$5A,$59,$57,$55,$53,$4F,$4C,$49,$46,$42,$3E
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.byte $3A,$36,$32,$2E,$2A,$26,$23,$1F,$1C,$18,$15,$12,$10,$0E,$0C,$0A,$09,$08,$07,$07,$07,$07,$09,$0A,$0B,$0D,$0F,$11,$13,$16,$19,$1C
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.byte $1F,$22,$26,$29,$2C,$2F,$32,$36,$38,$3B,$3E,$3F,$42,$44,$46,$47,$48,$49,$4B,$4B,$4B,$4A,$4A,$49,$49,$48,$46,$44,$43,$41,$3F,$3C
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.byte $3A,$38,$35,$33,$30,$2E,$2C,$2A,$28,$26,$24,$22,$21,$20,$1F,$1F,$1E,$1E,$1D,$1D,$1E,$1E,$1F,$20,$21,$22,$24,$25,$27,$29,$2B,$2D
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.byte $2E,$30,$33,$35,$37,$38,$3A,$3C,$3D,$3E,$3F,$3F,$40,$40,$41,$40,$40,$3F,$3F,$3E,$3D,$3B,$3A,$38,$36,$34,$31,$2F,$2D,$2B,$29,$25
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.byte $23,$21,$1F,$1D,$1B,$19,$18,$16,$15,$14,$14,$13,$13,$13,$13,$14,$16,$17,$18,$1A,$1C,$1D,$20,$23,$26,$28,$2C,$2E,$32,$35,$38,$3B
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.byte $3E,$41,$45,$48,$4B,$4C,$4F,$51,$53,$54,$55,$55,$57,$57,$57,$56,$55,$53,$52,$50,$4E,$4B,$49,$45,$42,$3F,$3B,$37,$34,$30,$2C,$27
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.byte $23,$1F,$1C,$18,$14,$11,$0E,$0B,$09,$07,$05,$03,$02,$01,$00,$00,$01,$01,$02,$03,$05,$07,$0A,$0D,$10,$13,$17,$1A,$1E,$22,$26,$2A
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; This appears to be roughly 38+24*sin(3x)+16*sin(8x)
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sin3: ; 256
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.byte $26,$2C,$31,$35,$39,$3D,$40,$42,$44,$45,$45,$46,$45,$43,$42,$40,$3C,$3A,$38,$36,$33,$31,$30,$2F,$2F,$2E,$2F,$2F,$30,$33,$33,$36
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.byte $37,$3A,$3C,$3C,$3E,$3E,$3D,$3D,$3B,$39,$36,$34,$30,$2B,$28,$23,$1D,$19,$14,$11,$0C,$09,$07,$04,$03,$03,$03,$03,$04,$07,$09,$0C
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.byte $0F,$13,$16,$18,$1B,$1E,$20,$22,$22,$23,$24,$24,$23,$22,$21,$20,$1D,$1C,$1B,$1A,$19,$19,$19,$1A,$1C,$1E,$20,$23,$27,$2B,$2F,$33
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.byte $37,$3D,$40,$44,$47,$4A,$4C,$4D,$4E,$4E,$4D,$4C,$4A,$47,$45,$41,$3C,$39,$35,$32,$2E,$2B,$28,$26,$25,$23,$23,$22,$22,$24,$24,$25
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.byte $26,$29,$2A,$2A,$2B,$2C,$2B,$2B,$29,$28,$25,$23,$20,$1C,$19,$15,$10,$0D,$09,$07,$04,$02,$01,$00,$00,$00,$02,$03,$06,$0A,$0D,$11
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.byte $15,$1B,$1F,$23,$27,$2B,$2D,$30,$32,$33,$34,$35,$35,$33,$33,$32,$30,$2E,$2D,$2C,$2B,$2A,$2A,$2A,$2B,$2C,$2E,$30,$32,$36,$38,$3B
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.byte $3E,$42,$45,$47,$49,$4B,$4B,$4B,$4A,$49,$47,$45,$42,$3D,$3A,$35,$30,$2B,$26,$22,$1E,$1A,$17,$14,$13,$11,$10,$10,$10,$12,$12,$14
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.byte $15,$18,$1A,$1B,$1D,$1E,$1F,$1F,$1F,$1F,$1E,$1D,$1B,$18,$16,$14,$10,$0E,$0C,$0B,$09,$08,$08,$09,$0A,$0C,$0E,$11,$14,$19,$1D,$22
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