c64-livecoding/wip-hugo/routines/circle/circle_test_position.s

47 lines
875 B
ArmAsm

.scope circle_test_position_x
.include "circle.inc"
;; Set initial parameters for circle
LDA #$50
STA $AD
LDA #$50
STA $AE
LDA #$40
STA $AF
loop:
;delay: ;lets delay the print
; LDX #$ff
; LDY #$ff
;delay_point:
; NOP
; NOP
; DEX
; BNE delay_point
; DEY
; BNE delay_point
;;clear screen
VIC_bank = $4000
Mov_16 A_start, A_start + 1, #<VIC_bank, #>VIC_bank
Mov_16 length, length + 1, #<$1f40, #>$1f40
LDA #$00
jsr memset
;;move circle
INC $AD
;; draw circle
LDA $AD
STA X_pos
LDA $AE
STA Y_pos
LDA $AF
STA radius
JSR circle
;; end loop when x_pos = $70
LDA $AD
CMP #$70
BNE loop
.endscope