corrected careless mistake

[my-code/atmel.git] / beginners / rgb_mali.asm

diff --git a/beginners/rgb_mali.asm b/beginners/rgb_mali.asm
index ca83557..8b26baf 100644 (file)
--- a/beginners/rgb_mali.asm
+++ b/beginners/rgb_mali.asm
@@ -14,6 +14,14 @@
 ; defines & equals
 .def zero = r0
 .def one = r1
+.def countrgb = r2
+.def desc = r3
+.equ RUP = 0
+.equ RDOWN = 1
+.equ GUP = 2
+.equ GDOWN = 3
+.equ BUP = 4
+.equ BDOWN = 5
 .def tmp = r16
 .def uart_count = r17
 .def count = r18
@@ -25,10 +33,13 @@
 .equ rgb = 1
 .def OUTR = r23
 .def FULLR = r24
+.def tmp2 = r25
 .equ LED_R = PD2
 .equ LED_G = PD3
 .equ LED_B = PD4
 .equ LED_PORT = PORTD
+.equ CM1 = 85
+.equ CM2 = 170
 
 ;
 ; interrupt voctors
@@ -44,7 +55,7 @@ reti
 ; timer/counter compare
 reti
 ; timer/counter overflow 1
-rjmp INC_RGB
+rjmp DO_IT
 ; timer/counter overflow 0
 reti
 ; uart rx complete
@@ -63,7 +74,7 @@ INIT:
 ; alloc stack pointer
 ldi r16,low(RAMEND)
 out SPL,r16
-; timer: clock/1024
+; timer: clock/8
 ldi tmp,((1<<CS11))
 out TCCR1B,tmp
 ; enable timer overflow interrupt
@@ -72,40 +83,136 @@ out TIMSK,tmp
 ; enable uart + rx complete interrupt
 ldi tmp,51 ; 9600 baud, 0,2% error @ 8mhz
 out UBRR,tmp
-ldi tmp,((1<<RXCIE)|(1<<RXEN))
+ldi tmp,((1<<RXCIE)|(1<<RXEN)|(1<<TXEN))
 out UCR,tmp
 ; init registers
 ldi tmp,1
 mov one,tmp
 ldi tmp,0
 mov zero,tmp
+mov countrgb,tmp
 ldi uart_count,0
 ldi count,0
-ldi RED,0x22
-ldi GREEN,0x77
-ldi BLUE,0xff
+ldi RED,CM2
+ldi GREEN,0x0
+ldi BLUE,0x0
 ; led pins are outputs
 ldi tmp,((1<<LED_R)|(1<<LED_G)|(1<<LED_B))
 out DDRD,tmp
+; default mode: cm
+ldi mode,cm
 ; enable interrupts (global)
 sei
 ; jump to main
 rjmp MAIN
 
 ;
-; increase rgb values
+; decide what to do
 ;
-INC_RGB:
-add RED,one
-add BLUE,one
-add GREEN,one
+DO_IT:
+cpi mode,cm
+breq CM_ACTION
+reti
+
+;
+; specify action
+;
+
+
+;
+; continuous mode action
+;
+CM_ACTION:
+cp countrgb,zero
+breq RD_GU
+ldi tmp,CM1
+cp countrgb,tmp
+breq GD_BU
+ldi tmp,CM2
+cp countrgb,tmp
+breq BD_RU
+ldi tmp,255
+cp countrgb,tmp
+breq RESET_RGB
+rjmp MAKE_RGB
+
+;
+; reset rgb
+;
+RESET_RGB:
+ldi RED,CM2
+mov GREEN,zero
+mov BLUE,zero
+mov desc,zero
+rjmp MAKE_RGB
+
+;
+; set desc
+;
+RD_GU:
+ldi tmp,((1<<RDOWN)|(1<<GUP))
+mov desc,tmp
+rjmp MAKE_RGB
+GD_BU:
+ldi tmp,((1<<GDOWN)|(1<<BUP))
+mov desc,tmp
+rjmp MAKE_RGB
+BD_RU:
+ldi tmp,((1<<BDOWN)|(1<<RUP))
+mov desc,tmp
+rjmp MAKE_RGB
+
+;
+; do the actual rgb calculation
+;
+MAKE_RGB:
+ldi tmp,(1<<RUP)
+and tmp,desc
+add tmp,tmp
+add RED,tmp
+ldi tmp,(1<<GUP)
+and tmp,desc
+lsr tmp
+lsr tmp
+add tmp,tmp
+add GREEN,tmp
+ldi tmp,(1<<BUP)
+and tmp,desc
+lsr tmp
+lsr tmp
+lsr tmp
+lsr tmp
+add tmp,tmp
+add BLUE,tmp
+ldi tmp,(1<<RDOWN)
+and tmp,desc
+lsr tmp
+add tmp,tmp
+sub RED,tmp
+ldi tmp,(1<<GDOWN)
+and tmp,desc
+lsr tmp
+lsr tmp
+lsr tmp
+add tmp,tmp
+sub GREEN,tmp
+ldi tmp,(1<<BDOWN)
+and tmp,desc
+lsr tmp
+lsr tmp
+lsr tmp
+lsr tmp
+lsr tmp
+add tmp,tmp
+sub BLUE,tmp
+add countrgb,one
 reti
 
 ;
 ; main routine
 ;
 MAIN:
-; jumpt to main loop
+; jump to main loop
 rjmp LOOP
 
 :
@@ -122,7 +229,7 @@ rjmp CHECK_RED
 ; reset leds
 ;
 RESET_LEDS:
-ldi OUTR,((1<<LED_R)|(1<<LED_G)|(LED_B))
+ldi OUTR,((1<<LED_R)|(1<<LED_G)|(1<<LED_B))
 rjmp CHECK_RED
 
 ;
@@ -190,5 +297,72 @@ rjmp LOOP
 ; receive from uart
 ;
 UART_RECEIVE:
+cp uart_count,zero
+breq GET_MODE
+cpi uart_count,1
+breq GET_R_VALUE
+cpi uart_count,2
+breq GET_G_VALUE
+cpi uart_count,3
+breq GET_B_VALUE
+
+;
+; get mode
+;
+GET_MODE:
+in tmp,UDR
+cpi tmp,0x63 ; 0x63 = 'c'
+breq SET_CONTINUOUS_MODE
+cpi tmp,0x73 ; 0x73 = 's'
+breq SET_SPECIFY_MODE
+ldi uart_count,0
+reti
+
+;
+; set cmode
+;
+SET_CONTINUOUS_MODE:
+ldi mode,cm
+ldi uart_count,0
+reti
+
+;
+; set specify mode
+;
+SET_SPECIFY_MODE:
+ldi mode,rgb
+add uart_count,one
+; check
+out UDR,mode
+reti
+
+;
+; get red value
+;
+GET_R_VALUE:
+in RED,UDR
+add uart_count,one
+; check
+out UDR,RED
+reti
+
+;
+; get green value
+;
+GET_G_VALUE:
+in GREEN,UDR
+add uart_count,one
+; check
+out UDR,GREEN
+reti
+
+;
+; get blue value
+;
+GET_B_VALUE:
+in BLUE,UDR
+mov uart_count,zero
+; check
+out UDR,BLUE
 reti