mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-09-13 12:56:30 +00:00
100 lines
1.8 KiB
ArmAsm
100 lines
1.8 KiB
ArmAsm
;=================================
|
|
; action_stars
|
|
;=================================
|
|
; and take 4504 cycles to do it
|
|
|
|
; we take 4501, so waste 3
|
|
action_stars:
|
|
|
|
jsr draw_stars ; 6+4492 = 4498
|
|
|
|
ldy FRAME ;nop ; 3
|
|
|
|
jmp check_keyboard ; 3
|
|
|
|
|
|
;=================================
|
|
; action_launch_firework
|
|
;=================================
|
|
; and take 4504 cycles to do it
|
|
|
|
; we take 423 so waste 4081
|
|
action_launch_firework:
|
|
|
|
; Try X=26 Y=30 cycles=4081
|
|
|
|
ldy #30 ; 2
|
|
Xloop1: ldx #26 ; 2
|
|
Xloop2: dex ; 2
|
|
bne Xloop2 ; 2nt/3
|
|
dey ; 2
|
|
bne Xloop1 ; 2nt/3
|
|
|
|
jsr launch_firework ; 6+414 = 420
|
|
|
|
jmp check_keyboard ; 3
|
|
|
|
|
|
;=================================
|
|
; action_move_rocket
|
|
;=================================
|
|
; and take 4504 cycles to do it
|
|
|
|
; we take 1245 so waste 3259
|
|
action_move_rocket:
|
|
|
|
; Try X=35 Y=18 cycles=3259
|
|
|
|
ldy #18 ; 2
|
|
Yloop1: ldx #35 ; 2
|
|
Yloop2: dex ; 2
|
|
bne Yloop2 ; 2nt/3
|
|
dey ; 2
|
|
bne Yloop1 ; 2nt/3
|
|
|
|
jsr move_rocket ; 6+1236 = 1242
|
|
|
|
jmp check_keyboard ; 3
|
|
|
|
|
|
;=================================
|
|
; action_start_explosion
|
|
;=================================
|
|
; and take 4504 cycles to do it
|
|
|
|
; we take 445 so waste 4059
|
|
action_start_explosion:
|
|
|
|
; Try X=30 Y=26 cycles=4057 R2
|
|
|
|
nop
|
|
|
|
ldy #26 ; 2
|
|
Zloop1: ldx #30 ; 2
|
|
Zloop2: dex ; 2
|
|
bne Zloop2 ; 2nt/3
|
|
dey ; 2
|
|
bne Zloop1 ; 2nt/3
|
|
|
|
jsr start_explosion ; 6+436 = 442
|
|
|
|
jmp check_keyboard ; 3
|
|
|
|
|
|
;=================================
|
|
; action_continue_explosion
|
|
;=================================
|
|
; and take 4504 cycles to do it
|
|
|
|
; we take 4495 so waste 9
|
|
action_continue_explosion:
|
|
lda STATE ; nop 3
|
|
lda STATE ; nop 3
|
|
lda STATE ; nop 3
|
|
|
|
jsr continue_explosion ; 6+4486 = 4492
|
|
|
|
jmp check_keyboard ; 3
|
|
|
|
|