Apple-2-SW/dos33fsprogs
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credits: all sprites going

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This commit is contained in:
Vince Weaver 2018-07-06 00:03:55 -04:00
parent c8ef0589d4
commit 0c273481ff
2 changed files with 36 additions and 25 deletions
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2
split_screen/calc_freq.c
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@ -9,7 +9,7 @@ int main(int argc, char **argv) {
// desired=5196;
// desired=4547;
// desired=9685;
desired=236;
desired=224;
printf("You want %d cycles\n",desired);

59
split_screen/credits.s
View File

@ -340,25 +340,36 @@ loop6:
;========
; 1437
lda FRAME ; 3
and #$7 ; 2
and #4 ; 2
; if (frame%8>4) {
; grsim_put_sprite_page(PAGE0,
; bird_rider_stand_right,
; 17,30);
; }
; else {
; grsim_put_sprite_page(PAGE0,
; bird_rider_walk_right,
; 17,30);
; }
beq bird_walking
; 2
lda #>bird_rider_stand_right ; 2
sta INH ; 3
lda #<bird_rider_stand_right ; 2
sta INL ; 3
jmp draw_bird ; 3
bird_walking:
; 3
lda #>bird_rider_walk_right ; 2
sta INH ; 3
lda #<bird_rider_walk_right ; 2
sta INL ; 3
; must be 15
lda #0 ; 2
; Must add another 15 as sprite is different
inc XPOS ; 5
inc XPOS ; 5
inc XPOS ; 5
draw_bird:
lda #>bird_rider_stand_right ; 2
sta INH ; 3
lda #<bird_rider_stand_right ; 2
sta INL ; 3
; 15 + 7
lda #17 ; 2
sta XPOS ; 3
lda #30 ; 2
@ -366,28 +377,28 @@ loop6:
jsr put_sprite ; 6
;=========
; 26
; 38
; + 2190
;========
; 2216
; 2228
; Blanking time: 4550
; Tree1 Sprite -603
; Tree2 Sprite -1437
; Sprite -2216
; Sprite -2228
; Frame Update -13
; Tree1 Update -21
; Tree2 Update -21
; JMP at end -3
; 236 is new number
; Try X=3 Y=11 cycles=232 R4
; 224 is new number
; Try X=43 Y=1 cycles=222 R2
lda #0 ; 2
lda #0 ; 2
ldy #11 ; 2
; lda #0 ; 2
ldy #1 ; 2
loop7:
ldx #3 ; 2
ldx #43 ; 2
loop8:
dex ; 2
bne loop8 ; 2nt/3
@ -500,7 +511,7 @@ done_tree1:
; so cost = 28 + Y*(34+18)+ (INNER-Y) -1 + 6
; = 33 + Y*(52)+(INNER-Y)
; = 33 + Y*(52)+ [30A + 64B + 69C + 54D]-Y
.align $100
put_sprite:
ldy #0 ; byte 0 is xsize ; 2