.include "riscmcu.inc"
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.include "riscmcu.inc"
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.def temp = r16
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.def temp = r16
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.def times = r17
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.def times = r17
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.def num = r18
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.def num = r18
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.def stack = r19
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.def stack = r19
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.def counter = r20
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.def counter = r20
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.def life = r22
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.def life = r22
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.def level = r23
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.def level = r23
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.def temp2 = r24
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.def temp2 = r24
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.cseg
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.cseg
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rjmp reset
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rjmp reset
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reti
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reti
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reti
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reti
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reset:
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reset:
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ldi counter,5
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ldi counter,5
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ser temp
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ser temp
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out ddrb,temp ; Port B direction as OUTPUT
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out ddrb,temp ; Port B direction as OUTPUT
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out ddrd,temp ; Port D direction as OUTPUT
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out ddrd,temp ; Port D direction as OUTPUT
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out portc,temp
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out portc,temp
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out portd,temp
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out portd,temp
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ldi temp,1
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ldi temp,1
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out tccr0,temp ; set clock as timer clock source
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out tccr0,temp ; set clock as timer clock source
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ldi temp,$0F
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ldi temp,$0F
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out ddrc,temp ; PinC[3..0] output, [7..4] input
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out ddrc,temp ; PinC[3..0] output, [7..4] input
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start:
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start:
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ldi life,3
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ldi life,3
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ldi level,1
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ldi level,1
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clt ; T = 0, start with correct
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clt ; T = 0, start with correct
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rcall getinput ; hit any key to start the game
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rcall getinput ; hit any key to start the game
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rcall showlife
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rcall showlife
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out portB,level ; output level to display
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out portB,level ; output level to display
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rcall holding ; release?
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rcall holding ; release?
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nextlevel:
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nextlevel:
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rcall delay ; wait a while before the game is started
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rcall delay ; wait a while before the game is started
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rcall showled ; show the LEDs and save it in buffer
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rcall showled ; show the LEDs and save it in buffer
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nlife: rcall check ; get input and check
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nlife: rcall check ; get input and check
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brts wrong
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brts wrong
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rcall greenled
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rcall greenled
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inc level ; when win, level <- level + 1
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inc level ; when win, level <- level + 1
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out portB,level ; output level to display
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out portB,level ; output level to display
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rjmp nextlevel
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rjmp nextlevel
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wrong: rcall redled
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wrong: rcall redled
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rcall delay
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rcall delay
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dec life
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dec life
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rcall showlife
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rcall showlife
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out portb,level
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out portb,level
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rcall delay
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rcall delay
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cpi life,0
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cpi life,0
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breq start
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breq start
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rcall playback
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rcall playback
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clt
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clt
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rjmp nlife
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rjmp nlife
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;*******************************************
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;*******************************************
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; show life
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; show life
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showlife:
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showlife:
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mov temp,life
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mov temp,life
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sbr temp,$f0
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sbr temp,$f0
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out portb,temp
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out portb,temp
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rcall delay
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rcall delay
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rcall delay
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rcall delay
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ret
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ret
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;*******************************************
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;*******************************************
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; on red leds
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; on red leds
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redled:
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redled:
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clr temp
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clr temp
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out portc,temp
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out portc,temp
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rcall delay
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rcall delay
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ser temp
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ser temp
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out portc,temp
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out portc,temp
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ret
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ret
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;*******************************************
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;*******************************************
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; on green led
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; on green led
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greenled:
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greenled:
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cbi portd,7
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cbi portd,7
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rcall delay
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rcall delay
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sbi portd,7
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sbi portd,7
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ret
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ret
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;*******************************************
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;*******************************************
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; play back the last sequence when wrong
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; play back the last sequence when wrong
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playback:
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playback:
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rcall init
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rcall init
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w10: ld temp,Z+
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w10: ld temp,Z+
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out portC,temp
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out portC,temp
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rcall delay
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rcall delay
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ser temp ; OFF
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ser temp ; OFF
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out portC,temp
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out portC,temp
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ldi counter,1
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ldi counter,1
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rcall delay
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rcall delay
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dec times
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dec times
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brne w10
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brne w10
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ret
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ret
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;*******************************************
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;*******************************************
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; Show sequence of LEDs (base on times), save in buffer
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; Show sequence of LEDs (base on times), save in buffer
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showled:
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showled:
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rcall init
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rcall init
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snext: rcall random ; return in NUM
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snext: rcall random ; return in NUM
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st Z+,num
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st Z+,num
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out portC,num ; display the LED
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out portC,num ; display the LED
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rcall delay
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rcall delay
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ser temp ; OFF
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ser temp ; OFF
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out portC,temp
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out portC,temp
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ldi counter,1
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ldi counter,1
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rcall delay
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rcall delay
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dec times
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dec times
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brne snext
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brne snext
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ret
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ret
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;*******************************************
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;*******************************************
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; wait for input and check
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; wait for input and check
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; return T = 0 when corrert, T = 1 when wrong
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; return T = 0 when corrert, T = 1 when wrong
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check:
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check:
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rcall init
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rcall init
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nextkey:
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nextkey:
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rcall holding
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rcall holding
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sei
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sei
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rcall getinput ; return in NUM
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rcall getinput ; return in NUM
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cli
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cli
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ld temp,Z+
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ld temp,Z+
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cpse num,temp
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cpse num,temp
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set ; Set T flag if one key is wrong
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set ; Set T flag if one key is wrong
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rcall holding
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rcall holding
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rcall sdelay
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rcall sdelay
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dec times
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dec times
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brne nextkey
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brne nextkey
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ret
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ret
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;*******************************************
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;*******************************************
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; still holding the key ?
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; still holding the key ?
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holding:
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holding:
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in temp,pinc
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in temp,pinc
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cbr temp,$0F
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cbr temp,$0F
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cpi temp,$F0
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cpi temp,$F0
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brne holding
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brne holding
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ret
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ret
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;*******************************************
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;*******************************************
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; getinput
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; getinput
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getinput:
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getinput:
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g15: in num,pinc
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g15: in num,pinc
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cbr num,$0F ; clear lower nibble
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cbr num,$0F ; clear lower nibble
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cpi num,$F0
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cpi num,$F0
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breq g15
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breq g15
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rcall sdelay
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rcall sdelay
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in temp,pinc
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in temp,pinc
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cbr temp,$0F
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cbr temp,$0F
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cp temp,num
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cp temp,num
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brne g15
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brne g15
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swap num
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swap num
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ret
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ret
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;*******************************************
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;*******************************************
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; 1. Load level to times
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; 1. Load level to times
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; 2. ZP point to start of buffer
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; 2. ZP point to start of buffer
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init: mov times,level ; times <- level
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init: mov times,level ; times <- level
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ldi ZP,buffer ; ZP <- buffer
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ldi ZP,buffer ; ZP <- buffer
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ret
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ret
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;*******************************************
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;*******************************************
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; Generate Random Num, return in NUM
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; Generate Random Num, return in NUM
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random:
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random:
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in num,tcnt0
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in num,tcnt0
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ran: cpi num,4
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ran: cpi num,4
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brlo rnext
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brlo rnext
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subi num,4
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subi num,4
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rjmp ran
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rjmp ran
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rnext: cpi num,0
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rnext: cpi num,0
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brne r10
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brne r10
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ldi num,0b1110
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ldi num,0b1110
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rjmp rend
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rjmp rend
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r10: cpi num,1
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r10: cpi num,1
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brne r20
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brne r20
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ldi num,0b1101
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ldi num,0b1101
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rjmp rend
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rjmp rend
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r20: cpi num,2
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r20: cpi num,2
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brne r30
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brne r30
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ldi num,0b1011
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ldi num,0b1011
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rjmp rend
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rjmp rend
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r30: ldi num,0b0111
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r30: ldi num,0b0111
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rend: in temp,tcnt0
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rend: in temp,tcnt0
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ror temp
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ror temp
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ror temp
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ror temp
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out tcnt0,temp
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out tcnt0,temp
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ret
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ret
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;*******************************************
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;*******************************************
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delay:
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delay:
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mov stack,ZP
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mov stack,ZP
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del: ldi ZP,count
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del: ldi ZP,count
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ld temp,Z
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ld temp,Z
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dec temp
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dec temp
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st Z,temp
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st Z,temp
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brne del
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brne del
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ldi ZP,count+1
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ldi ZP,count+1
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ld temp,Z
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ld temp,Z
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dec temp
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dec temp
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st Z,temp
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st Z,temp
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brne del
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brne del
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dec counter
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dec counter
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brne del
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brne del
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ldi counter,5
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ldi counter,5
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mov ZP,stack
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mov ZP,stack
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ret
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ret
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sdelay:
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sdelay:
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clr temp
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clr temp
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sd5: dec temp
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sd5: dec temp
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brne sd5
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brne sd5
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ret
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ret
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;*******************************************
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;*******************************************
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.dseg
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.dseg
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count: .byte 2
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count: .byte 2
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