bubble/attiny24a_memory-led-game
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refactor: effect_1 of leds

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This commit is contained in:
Sergey Yarkov 2021-09-29 22:43:54 +03:00
parent ee5d4ed163
commit 3f3c4e41a5
2 changed files with 51 additions and 27 deletions
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56
firmware.asm
View File

@ -50,40 +50,62 @@ main: ; Start up program
rcall init_ports ; Initialize MCU ports
loop: ; Program loop
rcall effect_1
rcall effect_1
rjmp loop
effect_1:
push r17
push r18
push r19
push r20
in r20, LED_PORT
;
; Set first led to high
ldi r17, 0xf1
out LED_PORT, r17
rcall delay_100ms
rcall delay_50ms
;
; Shift remaining bits
ldi r17, 0x01
;
; Loop counter
ldi r19, 3
effect_1_loop:
_eff_1_shift_l: ; Shift bits to left loop
ldi r18, 0xf0
lsl r17
add r18, r17
out LED_PORT, r18
rcall delay_100ms
rcall delay_50ms
dec r19
brne effect_1_loop
brne _eff_1_shift_l
;
; Set first led to high
ldi r17, 0xf8
out LED_PORT, r17
rcall delay_50ms
;
; Shift remaining bits
ldi r17, 0xf8
ldi r19, 3
_eff_1_shift_r:
ldi r18, 0xf0
lsr r17
sub r18, r17
out LED_PORT, r18
rcall delay_50ms
dec r19
brne _eff_1_shift_r
;
; Out saved PORT values
out LED_PORT, r20
pop r17
pop r18
pop r19
pop r20
ret
init_ports: ; Init MCU ports
@ -116,17 +138,17 @@ ldi r18, outer_count
ldi r18, outer_count
ret
delay_100ms:
delay_50ms:
push r18
push r19
ldi r18, 130 ; 1c
ldi r19, 222 ; 1c
_loop_d_100ms:
ldi r18, 65 ; 1c
ldi r19, 239 ; 1c
_loop_d_50ms:
dec r19 ; 1c
brne _loop_d_100ms ; 2 or 1c = 665c
brne _loop_d_50ms ; 2 or 1c = 665c
dec r18 ; 1c
brne _loop_d_100ms ; 2 or 1c
brne _loop_d_50ms ; 2 or 1c
nop
pop r19
pop r18

22
firmware.hex
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@ -1,12 +1,14 @@
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:00000001FF