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space_bars: back to where we started
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@ -292,24 +292,27 @@ sbloopF:dex ; 2
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; do_nothing should be 4550
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; do_nothing should be 4550
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; -3470 draw_framebuffer
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; -3470 draw_framebuffer
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; -793 setup framebuffer
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; -533 setup framebuffer
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; -21 frame count
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; -21 frame count
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; -34 keypress
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; -34 keypress
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; -1 adjust center mark back
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; -1 adjust center mark back
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; ===========
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; ===========
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; 231
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; 491
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; Try X=11 Y=8 cycles=489 R2
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; Try X=8 Y=5 cycles=231
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; Try X=8 Y=5 cycles=231
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nop
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ldy #5 ; 2
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ldy #8 ; 2
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sbloop1:ldx #8 ; 2
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sbloop1:ldx #11 ; 2
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sbloop2:dex ; 2
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sbloop2:dex ; 2
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bne sbloop2 ; 2nt/3
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bne sbloop2 ; 2nt/3
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dey ; 2
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dey ; 2
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bne sbloop1 ; 2nt/3
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bne sbloop1 ; 2nt/3
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jsr setup_framebuffer ; 6+787
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jsr setup_framebuffer ; 6+527
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jsr draw_framebuffer ; 6+3464
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jsr draw_framebuffer ; 6+3464
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@ -521,13 +524,16 @@ offset_lookup:
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; .byte 0,1,2,3,4,5,6,7,8,9,10,11,12
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; .byte 0,1,2,3,4,5,6,7,8,9,10,11,12
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; .byte 13,14,15,16,17,18,19,20,21,22,23,24
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; .byte 13,14,15,16,17,18,19,20,21,22,23,24
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.byte 25,24
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; .byte 25,24
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.byte 23,22,21,20,19,18,17,16,15,14,13,12
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; .byte 23,22,21,20,19,18,17,16,15,14,13,12
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.byte 11,10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
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; .byte 11,10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
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; .byte 13,12,11,10,9,8,7,6,5,4,3,2,1,0
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.byte 26,24,22,20,18,16,14,12,10, 8, 6, 4, 2,0
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.align $100
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.align $100
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; 2 + 60*13 + 5 = 787
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; 2 + 40*13 + 5 = 527
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setup_framebuffer:
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setup_framebuffer:
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ldx #0 ; 2
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ldx #0 ; 2
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setup_fb_loop:
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setup_fb_loop:
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@ -541,24 +547,17 @@ setup_fb_loop:
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asl ; 2
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asl ; 2
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asl ; 2
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asl ; 2
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asl ; 2
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asl ; 2
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pha ; 3
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;============
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;===========
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; 25
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; 28
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lda offset_lookup+1,X ; 4
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ora raster_texture+1,y ; 4
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clc ; 2
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adc FRAMEH ; 3
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and #$3f ; 2
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tay ; 2
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pla ; 4
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ora raster_texture,y ; 4
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sta FRAMEBUFFER,x ; zp ; 4
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sta FRAMEBUFFER,x ; zp ; 4
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inx ; 2
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inx ; 2
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cpx #13 ; 2
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cpx #13 ; 2
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bne setup_fb_loop ; 3
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bne setup_fb_loop ; 3
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;===========
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;===========
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; 32
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; 15
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; -1
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; -1
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rts ; 6
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rts ; 6
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