;//////////////////////////////////////////////////////////////////////////////
; Laboratory AVR Microcontrollers Part2
; Program template for lab 9
; Authors:
;
; Group:
; Section:
;
; Task:
;
; Todo:
;
;
; Version: 3.0
;//////////////////////////////////////////////////////////////////////////////
.nolist ;quartz assumption 4Mhz
.include "m128def.inc"
;//////////////////////////////////////////////////////////////////////////////
.list
.equ xlength =  100
;//////////////////////////////////////////////////////////////////////////////
; EEPROM - data non volatile memory segment
.ESEG

;//////////////////////////////////////////////////////////////////////////////
; StaticRAM - data memory.segment
.DSEG
.ORG 0x200; may be omitted this is default value
; Destination table (xlengthx bytes).
; Replace "xlengthx" with correct value
RAMTAB: .BYTE xlength

;//////////////////////////////////////////////////////////////////////////////
; CODE - Program memory segment
; Please Remember that it is "word" address space
;
.CSEG
.org 0x0000 ; may be omitted this is default value
jmp RESET   ; Reset Handler

; Interrupts vector table / change to your procedure only when needed
jmp EXT_INT0    ; IRQ0 Handler
jmp EXT_INT1    ; IRQ1 Handler
jmp EXT_INT2    ; IRQ2 Handler
jmp EXT_INT3    ; IRQ3 Handler
jmp EXT_INT4    ; IRQ4 Handler
jmp EXT_INT5    ; IRQ5 Handler
jmp EXT_INT6    ; IRQ6 Handler
jmp EXT_INT7    ; IRQ7 Handler
jmp TIM2_COMP   ; Timer2 Compare Handler
jmp TIM2_OVF    ;Timer2 Overflow Handler
jmp TIM1_CAPT   ;Timer1 Capture Handler
jmp TIM1_C0MPA  ;Timer1 CompareA Handler
jmp TIM1_C0MPB  ;Timer1 CompareB Handler
jmp TIM1_0VF    ;Timer1 Overflow Handler
jmp TIM0_COMP   ;Timer0 Compare Handler
jmp TIM0_OVF    ;Timer0 Overflow Handler
jmp SPI_STC     ;SPI Transfer Complete Handler
jmp USART0_RXC  ;USART0 RX Complete Handler
jmp USART0_DRE  ;USART0,UDR Empty Handler
jmp USART0_TXC  ;USART0 TX Complete Handler
jmp ADC1        ;ADC Conversion Complete Handler
jmp EE_RDY      ;EEPROM Ready Handler
jmp ANA_COMP    ;Analog Comparator Handler
jmp TIM1_C0MPC  ;Timer1 CompareC Handler
jmp TIM3_CAPT   ;Timer3 Capture Handler
jmp TIM3_COMPA  ;Timer3 CompareA Handler
jmp TIM3_COMPB  ; Timer3 CompareB Handler
jmp TIM3_COMPC  ;Timer3 CompareC Handler
jmp TIM3_OVF    ;Timer3 Overflow Handler
jmp USART1_RXC  ;USART1 RX Complete Handler
jmp USART1_DRE  ;USART1,UDR Empty Handler
jmp USART1_TXC  ;USART1 TX Complete Handler
jmp TWI         ;Two-wire Serial Interface Interrupt Handler
jmp SPM_RDY     ;SPM Ready Handler

;//////////////////////////////////////////////////////////////////////////////
EXT_INT0:   ; IRQ0 Handler
EXT_INT1:   ; IRQ1 Handler
EXT_INT2:   ; IRQ2 Handler
EXT_INT3:   ; IRQ3 Handler
EXT_INT4:   ; IRQ4 Handler
EXT_INT5:   ; IRQ5 Handler
EXT_INT6:   ; IRQ6 Handler
EXT_INT7:   ; IRQ7 Handler
TIM2_COMP:  ; Timer2 Compare Handler
TIM2_OVF:   ;Timer2 Overflow Handler
TIM1_CAPT:  ;Timer1 Capture Handler
TIM1_C0MPA: ;Timer1 CompareA Handler
TIM1_C0MPB: ;Timer1 CompareB Handler
TIM1_0VF:   ;Timer1 Overflow Handler
TIM0_COMP:  ;Timer0 Compare Handler
TIM0_OVF:   ;Timer0 Overflow Handler
SPI_STC:    ;SPI Transfer Complete Handler
USART0_RXC: ;USART0 RX Complete Handler
USART0_DRE: ;USART0,UDR Empty Handler
USART0_TXC: ;USART0 TX Complete Handler
ADC1:       ;ADC Conversion Complete Handler
EE_RDY:     ;EEPROM Ready Handler
ANA_COMP:   ;Analog Comparator Handler
TIM1_C0MPC: ;Timer1 CompareC Handler
TIM3_CAPT:  ;Timer3 Capture Handler
TIM3_COMPA: ;Timer3 CompareA Handler
TIM3_COMPB: ; Timer3 CompareB Handler
TIM3_COMPC: ;Timer3 CompareC Handler
TIM3_OVF:   ;Timer3 Overflow Handler
USART1_RXC: ;USART1 RX Complete Handler
USART1_DRE: ;USART1,UDR Empty Handler
USART1_TXC: ;USART1 TX Complete Handler
TWI:        ;Two-wire Serial Interface Interrupt Handler
SPM_RDY:    ;SPM Ready Handler
reti        ; return from all no used

;//////////////////////////////////////////////////////////////////////////////
; Program start
RESET:

cli         ; disable all interrupts
;  Set stack pointer to top of RAM
ldi R16, HIGH(RAMEND)
out SPH, R16
ldi R16, LOW(RAMEND)
out SPL, R16


; Main program code place here
; 1. Place here code related to initialization of ports and interrupts
; for instance:
;    port A as output and initial value 0
; DDRA=0xFF
; PORTA=0x00
;    port B as input and initial value FF
; DDRB=0x00
; PORTA=0xFF

ldi R18, 0xFF
ldi R19, 0x00
out DDRA, R19 ;Port A - wejście, przyciski
out PORTA, R19 ;przyciski - stan niski
out DDRB, R18 ;Port B - wyjście, diody
out PORTB, R18 ;diody - stan wysoki


;------------------------------------------------------------------------------
; F2. Load initial values of index registers
;  Z, X, Y

       ldi R16, byte3(ROMTAB<<1)
       out RAMPZ, R16
       ldi R30, low(ROMTAB<<1)     ;ZL
       ldi R31, high(ROMTAB<<1)     ;ZH

;pętla sprawdzająca czy został wciśnięty jakiś przycisk
;wykonywana dopóki nie zostanie wciśnięty którykolwiek z przycisków
wait:
       r16, PINA
       cpi r16, 0xFF
       breq wait
;koniec pętli sprawdzajacej przyciski

send:
       elpm R16, Z+
       cpi R16, 0xFF
       brne send_byte

       elpm R16, Z
       cpi R16, 0xFF
       breq End

       sbiw Z, 1
       elpm R16, Z+

send_byte:
       out PORTB, R16
       jmp send

;------------------------------------------------------------------------------
; Program end - Ending loop
;------------------------------------------------------------------------------
End:
rjmp END

;------------------------------------------------------------------------------
; Table Declaration -  place here test values
; Test with different table values and different begin addresses of table (als above 0x8000)
;
TAB_ROM: .db 0x00, 0x01, 0xff, 0x03, 0xff, 0x05, 0xFF, 0xFF
.EXIT
;------------------------------------------------------------------------------