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https://github.com/deater/dos33fsprogs.git
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split: got bird sprite working
This commit is contained in:
Vince Weaver
parent
8a82dad35e
commit
8bfee98017
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@ -9,7 +9,7 @@ int main(int argc, char **argv) {
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// desired=5196;
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// desired=4547;
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// desired=9685;
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desired=3714;
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desired=2331;
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printf("You want %d cycles\n",desired);
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@ -135,6 +135,15 @@ line_loop:
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; the line (max 3 repeats in that case)
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vapor_lock_loop:
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LDA #$A0
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zxloop:
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LDX #$04
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wiloop:
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CMP $C051
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BNE zxloop
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DEX
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BNE wiloop
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LDA #$44
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zloop:
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LDX #$04
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@ -268,17 +277,29 @@ loop6:
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; vertical blank
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; want 4550-3 = 4547 cycles
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; 1+y(6+5x)
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; Try X=13 Y=64 cycles=4545 R2
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; lda #0 ; 2
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; ldy #64 ; 2
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loopE:
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; ldx #13 ; 2
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loopF:
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; dex ; 2
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; bne loopF ; 2nt/3
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; dey ; 2
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; bne loopE ; 2nt/3
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;=========================================================================
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; DRAW SPRITES
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; do this during blanking interval
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lda #>blob ; 2
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lda #>bird_rider_stand_right ; 2
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sta INH ; 3
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lda #<blob ; 2
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lda #<bird_rider_stand_right ; 2
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sta INL ; 3
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lda #17 ; 2
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@ -286,32 +307,27 @@ loop6:
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lda #30 ; 2
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sta YPOS ; 3
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jsr put_sprite ; 6
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jsr put_sprite ; 6
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;=========
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; 26
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; + 807
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; + 2190
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;========
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; 833
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; 2216
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; blob= 833
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; 4547 - 833
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; 3714 is new number
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; Try X=147 Y=5 cycles=3706 R 8
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; 4547 - 2216
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; 2331 is new number
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; Try X=92 Y=5 cycles=2331
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lda #0 ; 2
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lda #0 ; 2
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lda #0 ; 2
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lda #0 ; 2
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; lda #0 ; 2
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; lda #0 ; 2
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ldy #5 ; 2
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loop7:
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ldx #147 ; 2
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ldx #92 ; 2
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loop8:
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dex ; 2
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bne loop8 ; 2nt/3
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dey ; 2
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bne loop7 ; 2nt/3
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@ -339,28 +355,19 @@ wait_until_keypressed:
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; outerloop = 34 setup
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; X*innerloop
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; innerloop = 30 if $00 17+13(done)
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; 54 if if $XX 16+8+8+9(put_all)+13(done)
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; 69 if $X0 16+8+7+5+20(put_sprite_mask)+13(done)
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; 64 if $0X 16+7+8+20(put_sprite_mask)+13(done)
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; 69 if $X0 16+8+7+5+20(put_sprite_mask)+13(done)
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; 54 if if $XX 16+8+8+9(put_all)+13(done)
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; -1 for last iteration
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; 18 (-1 for last)
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; 6 return
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; so cost = 28 + Y*(34+18)+ (INNER-X) -1 + 6
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; = 33 + Y*(52)+(INNER-X)
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; = 33 + Y*(52)+ [30A + 54B + 68C + 64D]-X
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; = 33 + Y*(52)+ [30A + 64B + 69C + 54D]-X
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; solid $XX, x=3, y=3, B=9
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; 33 + 3*(52)+[54*9]-3 = 672
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; solid $00, x=3, y=3, A=9
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; 33 + 3*(52)+[30*9]-3 = 456
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; solid $0X, x=3, y=3, D=9
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; 33 + 3*(52)+[64*9]-3 = 762
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; solid $X0, x=3, y=3, C=9
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; 33 + 3*(52)+[69*9]-3 = 807
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; bird_stand_right = X=6, Y=7 A=28 B=9 C=2 D=3
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; = 33 + 7*53+(30*28+53*9+68*2+63*3)-6 = 2040 cycles
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put_sprite:
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ldy #0 ; byte 0 is xsize ; 2
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@ -1,29 +1,37 @@
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bird_stand_right:
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bird_rider_stand_right:
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.byte $6,$7
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.byte $00,$00,$00,$00,$00,$00
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.byte $00,$00,$00,$00,$dd,$90
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.byte $00,$00,$00,$00,$dd,$00
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.byte $0d,$dd,$dd,$dd,$dd,$00
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.byte $00,$00,$0d,$dd,$0d,$00
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.byte $00,$dd,$bd,$00,$00,$00
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.byte $00,$dd,$db,$00,$dd,$90
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.byte $00,$00,$22,$02,$dd,$00
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.byte $0d,$dd,$d2,$22,$dd,$00
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.byte $00,$00,$0d,$82,$8d,$00
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.byte $00,$00,$00,$99,$00,$00
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.byte $00,$00,$00,$99,$90,$00
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; 00=22 0X=3 X0=2 XX=15
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; = 33 + Y*(52)+ [30A + 64B + 69C + 54D]-Y
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; = 33 + 7*52 + 30*22 + 64*3 + 69*2 + 54*15 - 7
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; = 2190
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bird_walk_right:
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bird_rider_walk_right:
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.byte $6,$7
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.byte $00,$00,$00,$00,$00,$00
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.byte $00,$00,$00,$00,$dd,$90
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.byte $00,$00,$00,$00,$dd,$00
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.byte $0d,$dd,$dd,$dd,$dd,$00
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.byte $00,$00,$0d,$dd,$0d,$00
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.byte $00,$dd,$bd,$00,$00,$00
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.byte $00,$dd,$db,$00,$dd,$90
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.byte $00,$00,$22,$02,$dd,$00
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.byte $0d,$dd,$d2,$22,$dd,$00
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.byte $00,$00,$0d,$82,$8d,$00
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.byte $00,$00,$00,$99,$00,$00
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.byte $00,$00,$99,$00,$99,$00
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; 00=22 0X=3 X0=1 XX=16
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small_tree:
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.byte $3,$3
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.byte $00,$CC,$00
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.byte $CC,$CC,$CC
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.byte $00,$88,$00
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; 00=4 0X=0 X0=0 XX=5
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; = 33 + Y*(52)+ [30A + 64B + 69C + 54D]-X
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; = 33 + 3*52 + [30*4 + 54*5]-3 = 576 ++ works
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big_tree:
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.byte $5,$5
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.byte $00,$00,$CC,$00,$00
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@ -31,10 +39,6 @@ big_tree:
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.byte $00,$CC,$CC,$CC,$00
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.byte $c0,$CC,$CC,$CC,$c0
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.byte $00,$00,$88,$00,$00
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blob:
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.byte $3,$3
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.byte $70,$80,$90
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.byte $A0,$B0,$C0
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.byte $D0,$E0,$F0
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; 00=12 0X=0 X0=4 XX=9
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; = 33 + Y*(52)+ [30A + 64B + 69C + 54D]-X
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; = 33 + 5*52 + 30*12 + 69*4 + 54*9 - 5 = 1410 ++ works
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