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lcd_text_editor.a
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;;-----------------------------------------------------------------------------------------
;; frisc-pynq-system
;;
;; sve informacije o načinima spajanja i definicijama ulazno/izlaznih jedinica možete
;; pročitati u dokumentu:
;; /pynq-lab-starter/docs/pynq-frisc-system.pdf
;;
;; sve informacije o programiranju i konfiguriranju pynq pločice možete pročitati u dokumentu:
;; /pynq-lab-starter/docs/upute-za-programiranje.pdf
;;
;; ovaj predložak ima predefinirani skup memorijskih adresa ui jedinica.
;; ui jedinice koje su postavljene u sustavu:
;; - 4 ledice i 2 rgb ledice
;; - 4 dugmića i 2 prekidača
;; - 2 x 8bit gpio (jedan ulazni i jedan izlazni)
;; - 2 x uart kontrolera (za bluetooth ili seriju)
;; - kontroler za i2c
;; - kontroler za SPI
;;
;; za sva pitanja možete se obratiti na:
;;
;;-----------------------------------------------------------------------------------------
;;
;; Projekt izradili: Marko Lazarić i Tin Blažević
;;
;; Kod za komunikaciju s LCD-om i crtanje pravokutnika je preuzet iz prošlogodišnjeg
;; projekta "lcd-pong".
;;
;;-----------------------------------------------------------------------------------------
;; adrese ulazno/izlaznih jedinica
GPIO0_LEDICE EQU 0FFF80000
GPIO0_RGB EQU 0FFF80008
GPIO1_SWITCHES EQU 0FFF81000
GPIO1_BUTTONS EQU 0FFF81008
GPIO1_ISR EQU 0FFF81120
GPIO1_GIER EQU 0FFF8111C
GPIO1_IER EQU 0FFF81128
GPIO2_INPUT EQU 0FFF82000
GPIO2_OUTPUT EQU 0FFF82008
GPIO2_ISR EQU 0FFF82120
GPIO2_GIER EQU 0FFF8211C
GPIO2_IER EQU 0FFF82128
UART0_RX EQU 0FFF83000
UART0_TX EQU 0FFF83004
UART0_STAT EQU 0FFF83008
UART0_CTRL EQU 0FFF8300C
UART1_RX EQU 0FFF84000
UART1_TX EQU 0FFF84004
UART1_STAT EQU 0FFF84008
UART1_CTRL EQU 0FFF8400C
I2C_GIE EQU 0FFF8501C ; i2c global interrupt enable register
I2C_ISR EQU 0FFF85020 ; i2c interrupt status register
I2C_IER EQU 0FFF85028 ; i2c interrupt enable register
I2C_CR EQU 0FFF85100 ; i2c control register
I2C_SR EQU 0FFF85104 ; i2c status register
I2C_TX_FIFO EQU 0FFF85108 ; i2c transmit fifo
I2C_RX_FIFO EQU 0FFF8510C ; i2c recieve fifo
I2C_SA EQU 0FFF85110 ; i2c slave adress register (adresa na kojoj ce se odazivati - slave mode)
I2C_TX_FIFO_OCY EQU 0FFF85114 ; i2c transmit fifo occupancy 0 = 1 podatak, 1 = 2 podatka...
I2C_RX_FIFO_OCY EQU 0FFF85118 ; i2c recieve fifo occupancy 0 = 1 podatak, 1 = 2 podatka...
I2C_RX_FIFO_PIR EQU 0FFF85120 ; i2c rx fifo - nakon koliko podataka ce se napraviti interrupt, ondosno max velicina RX_FIFO-a
SPI_CR EQU 0FFF86060 ; SPI control register
SPI_SR EQU 0FFF86064 ; SPI status register
SPI_DTR EQU 0FFF86068 ; SPI data transmit register
SPI_DRR EQU 0FFF8606C ; SPI data receive register
SPI_SSR EQU 0FFF86070 ; SPI slave select register
SPI_GIER EQU 0FFF8601C ; SPI global interrupt enable register
SPI_IER EQU 0FFF86028 ; SPI interrupt enable register
SPI_ISR EQU 0FFF86020 ; SPI interrupt status register
TIMER0_CSR EQU 0FFF87000 ; timer 0 control and status register
TIMER0_LR EQU 0FFF87004 ; timer 0 load register
TIMER0_CR EQU 0FFF87008 ; timer 0 counter register
TIMER1_CSR EQU 0FFF87010 ; timer 1 control and status register
TIMER1_LR EQU 0FFF87014 ; timer 1 load register
TIMER1_CR EQU 0FFF87018 ; timer 1 counter register
INTC_NMI_ISR EQU 0FFF88000 ; interrupt status register
INTC_NMI_IAR EQU 0FFF8800C ; interrupt aknowledge register
INTC_NMI_SIE EQU 0FFF88010 ; set interrupt enable
INTC_NMI_CIE EQU 0FFF88014 ; clear interrupt enable
INTC_NMI_MER EQU 0FFF8801C ; master enable register
INTC_MI_ISR EQU 0FFF89000 ; interrupt status register
INTC_MI_IAR EQU 0FFF8900C ; interrupt aknowledge register
INTC_MI_SIE EQU 0FFF89010 ; set interrupt enable
INTC_MI_CIE EQU 0FFF89014 ; clear interrupt enable
INTC_MI_MER EQU 0FFF8901C ; master enable register
; lcd konstante
ILI9341_TFTWIDTH EQU %D 240
ILI9341_TFTHEIGHT EQU %D 320
; lcd komande - za znacenja vidjeti datasheet str 83
ILI9341_SWRESET EQU 01
ILI9341_SLPOUT EQU 11
ILI9341_INVOFF EQU 20
ILI9341_INVON EQU 21
ILI9341_GAMMASET EQU 26
ILI9341_DISPON EQU 29
ILI9341_CASET EQU 2A
ILI9341_PASET EQU 2B
ILI9341_RAMWR EQU 2C
ILI9341_RAMRD EQU 2E
ILI9341_MADCTL EQU 36
ILI9341_PIXFMT EQU 3A
ILI9341_FRMCTR1 EQU 0B1
ILI9341_DFUNCTR EQU 0B6
ILI9341_PWCTR1 EQU 0C0
ILI9341_PWCTR2 EQU 0C1
ILI9341_VMCTR1 EQU 0C5
ILI9341_VMCTR2 EQU 0C7
ILI9341_GMCTRP1 EQU 0E0
ILI9341_GMCTRN1 EQU 0E1
ORG 0
MAIN MOVE 10000, SP
; SPI config
; 876543210
MOVE %B 110000110, R0 ; 0x186
STORE R0, (SPI_CR)
MOVE 0, R0 ; slave select
STORE R0, (SPI_SSR)
; reset lcd
MOVE ILI9341_SWRESET, R6
CALL SEND_CMD
MOVE 100, R6
CALL WAIT
; init lcd
; (sekvenca preuzeta iz python libraryja)
MOVE ILI9341_PWCTR1, R6
CALL SEND_CMD
MOVE 0x23, R6
CALL SEND_DATA
MOVE ILI9341_PWCTR2, R6
CALL SEND_CMD
MOVE 0x10, R6
CALL SEND_DATA
MOVE ILI9341_VMCTR1, R6
CALL SEND_CMD
; block([0x3e, 0x28])
MOVE 2, R0
PUSH R0
MOVE INIT_BLOCK1, R0
PUSH R0
CALL SEND_BLOCK
ADD SP, 8, SP
MOVE ILI9341_VMCTR2, R6
CALL SEND_CMD
MOVE 0x86, R6
CALL SEND_DATA
MOVE ILI9341_MADCTL, R6
CALL SEND_CMD
MOVE 0x48, R6
CALL SEND_DATA
MOVE ILI9341_PIXFMT, R6
CALL SEND_CMD
MOVE 0x55, R6
CALL SEND_DATA
MOVE ILI9341_FRMCTR1, R6
CALL SEND_CMD
; block([0x00, 0x18])
MOVE 2, R0
PUSH R0
MOVE INIT_BLOCK2, R0
PUSH R0
CALL SEND_BLOCK
ADD SP, 8, SP
MOVE ILI9341_DFUNCTR, R6
CALL SEND_CMD
; block([0x08, 0x82, 0x27])
MOVE 3, R0
PUSH R0
MOVE INIT_BLOCK3, R0
PUSH R0
CALL SEND_BLOCK
ADD SP, 8, SP
MOVE 0xF2, R6
CALL SEND_CMD
MOVE 0x00, R6
CALL SEND_DATA
MOVE ILI9341_GAMMASET, R6
CALL SEND_CMD
MOVE 0x01, R6
CALL SEND_DATA
MOVE ILI9341_GMCTRP1, R6
CALL SEND_CMD
; block([0x0f, 0x31, 0x2b, 0x0c, 0x0e, 0x08, 0x4e, 0xf1, 0x37, 0x07, 0x10, 0x03, 0x0e, 0x09, 0x00])
MOVE %D 15, R0
PUSH R0
MOVE INIT_BLOCK4, R0
PUSH R0
CALL SEND_BLOCK
ADD SP, 8, SP
MOVE ILI9341_GMCTRN1, R6
CALL SEND_CMD
; block([0x00, 0x0e, 0x14, 0x03, 0x11, 0x07, 0x31, 0xc1, 0x48, 0x08, 0x0f, 0x0c, 0x31, 0x36, 0x0f])
MOVE %D 15, R0
PUSH R0
MOVE INIT_BLOCK5, R0
PUSH R0
CALL SEND_BLOCK
ADD SP, 8, SP
MOVE ILI9341_SLPOUT, R6
CALL SEND_CMD
MOVE 12, R6
CALL WAIT
MOVE ILI9341_DISPON, R6
CALL SEND_CMD
; nacrtaj pozadinu
RESET_LCD LOAD R0, (CRNA)
PUSH R0
MOVE 0, R0 ; x0
PUSH R0
MOVE 4, R0 ; x1
PUSH R0
MOVE 0, R0 ; y0
PUSH R0
MOVE ILI9341_TFTHEIGHT, R0 ; y1
PUSH R0
CALL PAINT_AREA
ADD SP, 14, SP
LOAD R0, (BOJE)
PUSH R0
MOVE 0, R0 ; x0
PUSH R0
MOVE ILI9341_TFTWIDTH, R0 ; x1
PUSH R0
MOVE 0, R0 ; y0
PUSH R0
MOVE ILI9341_TFTHEIGHT, R0 ; y1
PUSH R0
CALL PAINT_AREA
ADD SP, 14, SP
CALL UI_DRAW_BG
CALL UI_DRAW_ZNAK
CALL UI_DRAW_STUP
CALL UI_DRAW_REDK
CALL UI_DRAW_SCAL
CALL UI_DRAW_ZAST
JR GLAVNA_PETLJA
HALT
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
; init blocks
INIT_BLOCK1 DB 3E, 28
INIT_BLOCK2 DB 00, 18
INIT_BLOCK3 DB 08, 82, 27
INIT_BLOCK4 DB 0F, 31, 2b, 0c, 0e, 08, 4e, 0f1, 37, 07, 10, 03, 0e, 09, 00
INIT_BLOCK5 DB 00, 0e, 14, 03, 11, 07, 31, 0c1, 48, 08, 0f, 0c, 31, 36, 0f
WAIT ; ceka R6 milisekundi
PUSH R6
PUSH R5
WAIT_LP_OUT MOVE 1000, R5 ; cekaj 1 ms
WAIT_LP_IN SUB R5, 1, R5
JR_NZ WAIT_LP_IN
SUB R6, 1, R6
JR_NZ WAIT_LP_OUT
POP R5
POP R6
RET
QUICK_WAIT ; ceka R6 ciklusa
; invalidira R6
SUB R6, 1, R6
JR_NZ QUICK_WAIT
RET
MULTIPLY ; mnozi argumente sa stacka
; ne radi za mnozenje s nulom!
; vraca rezultat na r0
PUSH R1
PUSH R2
LOAD R1, (SP+0C) ; prvi faktor
LOAD R2, (SP+10) ; drugi faktor
MOVE 0, R0 ; rezultat
MULTIPLY_LP ADD R0, R2, R0
SUB R1, 1, R1
JR_NZ MULTIPLY_LP
POP R2
POP R1
RET
PAINT_AREA ; oboja pravokutnik
; prima stogom redom
; boja, x0, x1, y0, y1
PUSH R0
PUSH R1
PUSH R2
PUSH R3
PUSH R6
LOAD R0, (SP+24) ; x0
LOAD R1, (SP+20) ; x1
LOAD R2, (SP+1C) ; y0
LOAD R3, (SP+18) ; y1
PUSH R0 ; set frame
PUSH R1
PUSH R2
PUSH R3
CALL SET_FRAME
ADD SP, %D 16, SP
; izracunaj broj piksela
SUB R1, R0, R0
SUB R3, R2, R1
PUSH R0
PUSH R1
CALL MULTIPLY ; r0 = broj piksela
ADD SP, 8, SP
; popuni pikselima
MOVE ILI9341_RAMWR, R6
CALL SEND_CMD
LOAD R6, (SP+28) ; boja
PAINT_AREA_LP CALL SEND_HW
SUB R0, 1, R0
JR_NZ PAINT_AREA_LP
POP R6
POP R3
POP R2
POP R1
POP R0
RET
SPI_SEND ; opcenito slanje bez postavljanja dc
; salje R6
PUSH R6
PUSH R5
STOREB R6, (SPI_DTR) ; postavi komandu
LOAD R5, (SPI_CR) ; omoguci transakciju
AND R5, %B 011111111, R5 ; master transaction inhibit bit u 0
STORE R5, (SPI_CR)
MOVE 10, R6 ; cekaj da se podatak prenese
; trebalo bi provjeravati statusni registar u petlji, ali to ne funkcionira
CALL QUICK_WAIT
LOAD R5, (SPI_CR) ; onemoguci transakciju
OR R5, %B 100000000, R5 ; master transaction inhibit bit u 1
STORE R5, (SPI_CR)
POP R5
POP R6
RET
SEND_DATA ; salje R6 na SPI
PUSH R5
MOVE 1, R5 ; postavi pisanje podatka
STOREB R5, (GPIO2_OUTPUT)
CALL SPI_SEND
POP R5
RET
SEND_HW ; salje polurijec R6 na SPI
; big endian
PUSH R5
MOVE 1, R5 ; postavi pisanje podatka
STOREB R5, (GPIO2_OUTPUT)
ROTR R6, 8, R6 ; gornja polovica
CALL SPI_SEND
ROTL R6, 8, R6 ; donja polovica
CALL SPI_SEND
POP R5
RET
SEND_BLOCK ; prima stogom
; 1) broj elemenata
; 2) adresu pocetnog
; salje elemente na SPI
PUSH R0 ; sacuvaj
PUSH R1
PUSH R2
PUSH R6
MOVE 1, R0 ; postavi pisanje podatka
STOREB R0, (GPIO2_OUTPUT)
LOAD R0, (SP+18) ; brojac
LOAD R1, (SP+14) ; adresa
SEND_BLOCK_LP LOADB R6, (R1)
CALL SPI_SEND
ADD R1, 1, R1
SUB R0, 1, R0
JR_NZ SEND_BLOCK_LP
POP R6
POP R2
POP R1
POP R0
RET
SEND_CMD ; salje R6 na SPI
PUSH R5
MOVE 0, R5 ; postavi pisanje komande
STOREB R5, (GPIO2_OUTPUT)
CALL SPI_SEND
POP R5
RET
SET_FRAME ; postavi okvir za crtanje
; stogom se prenose redom:
; x0, x1, y0, y1
; redovi i stupci su 0-indeksirani
; skup je [x0, x1> x [y0, y1> (kartezijev produkt)
; (za sliku 10x20 u (0, 5) salje se (0, 9, 5, 5+19))
PUSH R6
MOVE ILI9341_CASET, R6
CALL SEND_CMD
LOAD R6, (SP+14) ; x065K color: 16-bit/pixel (RGB 5-6-5 bits input)
CALL SEND_HW
LOAD R6, (SP+10) ; x1
SUB R6, 1, R6 ; x1-- zatvarajuce granice su exclusive
CALL SEND_HW
MOVE ILI9341_PASET, R6
CALL SEND_CMD
LOAD R6, (SP+0C) ; y0
CALL SEND_HW
LOAD R6, (SP+8) ; y1
SUB R6, 1, R6
CALL SEND_HW
POP R6
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
GLAVNA_PETLJA
UPDATE_INPUT ;opisna labela, ovdje je nekad bio kod
LOAD R0, (GPIO1_SWITCHES) ;ledicu switcha u 1 bojamo u zeleno
MOVE 0, R1
SHR R0, 1, R0
ADC R1, 0, R1
SHL R0, 4, R0
SHL R1, 1, R1
OR R0, R1, R0
STORE R0, (GPIO0_RGB)
LOAD R6, (GPIO1_BUTTONS)
AND R6, %B 1111, R6
CMP R6, %B 1111 ;sva 4 dugmeta = reset
JR_EQ ZOVI_RESET
CALL UI_DRAW_ZAST
LOAD R5, (PRETH_BUTTONS)
CMP R5, R6
JR_EQ GLAVNA_PETLJA ;nije bilo promjene, preskoči donji kod da ne crtamo bezveze
STORE R6, (PRETH_BUTTONS)
LOAD R5, (GPIO1_SWITCHES) ;ispitujemo switcheve
AND R5, %B 11, R5
CMP R5, %B 00
JR_EQ SW_MODE_00
CMP R5, %B 01
JR_EQ SW_MODE_01
CMP R5, %B 10
JR_EQ SW_MODE_10
CMP R5, %B 11
JR_EQ SW_MODE_11
SW_MODE_00 CMP R6, %B 1000 ;mode za znakove i unos
CALL_EQ ZN_DEK
CMP R6, %B 0100
CALL_EQ ZN_INK
CMP R6, %B 0010
CALL_EQ SWITCH_UPIS
CMP R6, %B 0001
CALL_EQ UVJ_ISP_ZNK
JR END_UPDATE
SW_MODE_01 CMP R6, %B 1000 ;mode za boje
CALL_EQ BOJA_BG_DEK
CMP R6, %B 0100
CALL_EQ BOJA_BG_INK
CMP R6, %B 0010
CALL_EQ BOJA_ZN_DEK
CMP R6, %B 0001
CALL_EQ BOJA_ZN_INK
JR END_UPDATE
SW_MODE_10 CALL DIS_UPIS
CMP R6, %B 1000 ;mode za navigaciju
CALL_EQ REDAK_DEK
CMP R6, %B 0100
CALL_EQ REDAK_INK
CMP R6, %B 0010
CALL_EQ STUP_DEK
CMP R6, %B 0001
CALL_EQ STUP_INK
AND R6, %B 0011, R0 ; Crtanje UI-a ovisno o tome koja se koordinata promijenila
CALL_NZ UI_DRAW_STUP
AND R6, %B 1100, R0
CALL_NZ UI_DRAW_REDK
JR END_UPDATE
SW_MODE_11 CMP R6, %B 0011 ;mode za scale i orijentaciju(pozitivni/negativni scale duž neke osi)
CALL_EQ SWCH_PMT_ORJ ;ako pritisnemo switch x i y istovremeno, switchamo PAMTI_ORJ
CMP R6, %B 1100 ;ili ako istovremeno pritisnemo scale ink i dek, što ne utječe na scale
CALL_EQ SWCH_PMT_ORJ
CMP R6, %B 1000
CALL_EQ SCALE_DEK
CMP R6, %B 0100
CALL_EQ SCALE_INK
CMP R6, %B 0010
CALL_EQ XOR_ORJ_X
CMP R6, %B 0001
CALL_EQ XOR_ORJ_Y
AND R6, %B 1100, R0
CALL_NZ UI_DRAW_SCAL
JR END_UPDATE
END_UPDATE STORE R6, (GPIO0_LEDICE)
CALL UVJ_ISP_ZNK
CALL UI_DRAW_ZNAK
JR GLAVNA_PETLJA
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_BG_INK PUSH R0 ;boja pozadine inkrement
LOAD R0, (BOJA_BG_PNT)
ADD R0, 4, R0
SHR R0, 2, R0
CMP R0, UKUPNO_BOJA ;0-indeksirano
JR_NE SV_BG_CL1
MOVE 0, R0 ;rješavamo overflow
SV_BG_CL1 SHL R0, 2, R0
STORE R0, (BOJA_BG_PNT)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_BG_DEK PUSH R0 ;boja pozadine dekrement
LOAD R0, (BOJA_BG_PNT)
SUB R0, 4, R0
CMP R0, -4
JR_NE SV_BG_CL2
MOVE UKUPNO_BOJA, R0 ;rješavamo overflow
SUB R0, 1, R0 ;0-indeksirano
SHL R0, 2, R0
SV_BG_CL2 STORE R0, (BOJA_BG_PNT)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_ZN_INK PUSH R0 ;boja znaka inkrement
LOAD R0, (BOJA_ZNK_PNT)
ADD R0, 4, R0
SHR R0, 2, R0
CMP R0, UKUPNO_BOJA ;0-indeksirano
JR_NE SV_ZN_CL1
MOVE 0, R0 ;rješavamo overflow
SV_ZN_CL1 SHL R0, 2, R0
STORE R0, (BOJA_ZNK_PNT)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_ZN_DEK PUSH R0 ;boja znaka dekrement
LOAD R0, (BOJA_ZNK_PNT)
SUB R0, 4, R0
CMP R0, -4
JR_NE SV_ZN_CL2
MOVE UKUPNO_BOJA, R0 ;rješavamo overflow
SUB R0, 1, R0 ;0-indeksirano
SHL R0, 2, R0
SV_ZN_CL2 STORE R0, (BOJA_ZNK_PNT)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZN_INK PUSH R0 ;znak inkrement
LOAD R0, (ZNAK_PNT)
ADD R0, 1, R0
CMP R0, UKUPNO_ZNAKOVA ;0-indeksirano
JR_NE SV_ZN1
MOVE 0, R0 ;rješavamo overflow
SV_ZN1 STORE R0, (ZNAK_PNT)
CALL BUFFER_ZNAK
CALL UPDATE_ORJ
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZN_DEK PUSH R0 ;znak dekrement
LOAD R0, (ZNAK_PNT)
SUB R0, 1, R0
CMP R0, -1
JR_NE SV_ZN2
MOVE UKUPNO_ZNAKOVA, R0 ;rješavamo overflow
SUB R0, 1, R0 ;0-indeksirano
SV_ZN2 STORE R0, (ZNAK_PNT)
CALL BUFFER_ZNAK
CALL UPDATE_ORJ
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STUP_INK PUSH R0 ;stupac inkrement
LOAD R0, (TR_STUPAC)
ADD R0, 1, R0
CMP R0, MAXSTUP ;0-indeksirano
JR_NE SV_ST1
MOVE 0, R0 ;rješavamo overflow
SV_ST1 STORE R0, (TR_STUPAC)
SHL R0, 3, R0
STORE R0, (POZICIJA_X)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STUP_DEK PUSH R0 ;stupac dekrement
LOAD R0, (TR_STUPAC)
SUB R0, 1, R0
CMP R0, -1
JR_NE SV_ST2
MOVE MAXSTUP, R0 ;rješavamo overflow
SUB R0, 1, R0 ;0-indeksirano
SV_ST2 STORE R0, (TR_STUPAC)
SHL R0, 3, R0
STORE R0, (POZICIJA_X)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
REDAK_INK PUSH R0 ;redak inkrement
LOAD R0, (TR_REDAK)
ADD R0, 1, R0
CMP R0, MAXRED ;0-indeksirano
JR_NE SV_RD1
MOVE 0, R0 ;rješavamo overflow
SV_RD1 STORE R0, (TR_REDAK)
SHL R0, 3, R0
STORE R0, (POZICIJA_Y)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
REDAK_DEK PUSH R0 ;redak dekrement
LOAD R0, (TR_REDAK)
SUB R0, 1, R0
CMP R0, -1
JR_NE SV_RD2
MOVE MAXRED, R0 ;rješavamo overflow
SUB R0, 1, R0 ;0-indeksirano
SV_RD2 STORE R0, (TR_REDAK)
SHL R0, 3, R0
STORE R0, (POZICIJA_Y)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SCALE_INK PUSH R0 ;scale inkrement
LOAD R0, (SCALE)
ADD R0, 1, R0
CMP R0, MAXSCALE ;0-indeksirano
JR_NE SV_SC1
MOVE 1, R0 ;rješavamo overflow
SV_SC1 STORE R0, (SCALE)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SCALE_DEK PUSH R0 ;scale dekrement
LOAD R0, (SCALE)
SUB R0, 1, R0
CMP R0, 0
JR_NE SV_SC2
MOVE MAXSCALE, R0 ;rješavamo overflow
SUB R0, 1, R0 ;0-indeksirano
SV_SC2 STORE R0, (SCALE)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
UPISI_ZNAK
CALL EN_UPIS
CALL ISPISI_ZNAK
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
EN_UPIS
MOVE 1, R0
STORE R0, (UPIS_ENABLED)
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
DIS_UPIS
MOVE 0, R0
STORE R0, (UPIS_ENABLED)
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SWITCH_UPIS
LOAD R0, (UPIS_ENABLED)
XOR R0, 1, R0
STORE R0, (UPIS_ENABLED)
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SWCH_PMT_ORJ PUSH R0
LOAD R0, (PAMTI_ORJ)
XOR R0, 1, R0
STORE R0, (PAMTI_ORJ)
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZOVI_RESET PUSH R0 ;resetira poziciju na 0,0, scale, znak i zastavice i SKAČE na RESET_LCD ; NE ZVATI SA CALL
LOAD R0, (TR_REDAK)
MOVE 0, R0
STORE R0, (TR_REDAK)
LOAD R0, (TR_STUPAC)
MOVE 0, R0
STORE R0, (TR_STUPAC)
LOAD R0, (POZICIJA_X)
MOVE 0, R0
STORE R0, (POZICIJA_X)
LOAD R0, (POZICIJA_Y)
MOVE 0, R0
STORE R0, (POZICIJA_Y)
LOAD R0, (ZNAK_PNT)
MOVE 0, R0
STORE R0, (ZNAK_PNT)
LOAD R0, (SCALE)
MOVE 1, R0
STORE R0, (SCALE)
LOAD R0, (PAMTI_ORJ)
MOVE 0, R0
STORE R0, (PAMTI_ORJ)
LOAD R0, (ORJ_X)
MOVE 0, R0
STORE R0, (ORJ_X)
LOAD R0, (ORJ_Y)
MOVE 0, R0
STORE R0, (ORJ_Y)
LOAD R0, (UPIS_ENABLED)
MOVE 0, R0
STORE R0, (UPIS_ENABLED)
POP R0
JR RESET_LCD
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
UPDATE_ORJ PUSH R0
LOAD R0, (PAMTI_ORJ) ;ako pamtimo orijentaciju, treba ju promijeniti nakon učitavanja znaka
CMP R0, 0
JR_EQ NO_ORJ
CHCK_ORJ_X LOAD R0, (ORJ_X)
CMP R0,0
JR_EQ CHCK_ORJ_Y
CALL ZRCALI_X
CHCK_ORJ_Y LOAD R0, (ORJ_Y)
CMP R0,0
JR_EQ NO_ORJ
CALL ZRCALI_Y
NO_ORJ POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
DIVMOD PUSH R2 ; Prima dva parametra stogom a i b i računa R0 = a div b, R1 = a mod b
LOAD R1, (SP+0C)
LOAD R2, (SP+8)
MOVE 0, R0
LP_DIVMOD ADD R0, 1, R0
SUB R1, R2, R1
JP_P LP_DIVMOD
SUB R0, 1, R0
ADD R1, R2, R1
POP R2
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BUFFER_ZNAK ;učitava znak iz memorije u buffer
PUSH R0
PUSH R1
LOAD R0, (ZNAK_PNT)
SHL R0, 3, R0
LOAD R1, (R0+ZNAKOVI)
STORE R1, (BUFFER)
ADD R0, 4, R0
LOAD R1, (R0+ZNAKOVI)
MOVE BUFFER, R0
ADD R0, 4, R0
STORE R1, (R0)
POP R1
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
XOR_ORJ_X PUSH R0
LOAD R0, (ORJ_X)
XOR R0, 1, R0
STORE R0, (ORJ_X)
CALL ZRCALI_X
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
XOR_ORJ_Y PUSH R0
LOAD R0, (ORJ_Y)
XOR R0, 1, R0
STORE R0, (ORJ_Y)
CALL ZRCALI_Y
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZRCALI_Y PUSH R0 ; Zrcali BUFFER s obzirom na y-os
PUSH R1
PUSH R2
MOVE BUFFER, R1 ; Stavlja adresu prvog bajta BUFFER-a u R1
MOVE 8, R2 ; Brojač - 8 zato što ima 8 bajta
LP_ZRC_Y LOADB R0, (R1)
CALL ZRCALI_BAJT_Y ; Učita - zrcali - upiše natrag
STOREB R0, (R1)
ADD R1, 1, R1 ; Sljedeći bajt BUFFER-a
SUB R2, 1, R2
JR_NZ LP_ZRC_Y
POP R2
POP R1
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZRCALI_BAJT_Y PUSH R1 ; Zrcali pojedini bajt s obzirom na y-os, prima taj bajt kao parametar preko R0
PUSH R2 ; Vraća rezultat preko R0
MOVE 8, R1 ; Brojač - 8 zato što ima 8 bita u bajtu
MOVE 0, R2 ; Rezultat
LP_ZRC_B_Y SHL R2, 1, R2 ; Pomaknemo rezultat za jedan bit lijevo
SHR R0, 1, R0 ; Izbacimo jedan bit iz ulaznog parametra pomakom u desno
ADC R2, 0, R2 ; Dodamo taj bit rezultat
; !!!! Ovim redoslijedom idemo kako ne bismo obrisali Carry zastavicu prije ADC
SUB R1, 1, R1
JR_NZ LP_ZRC_B_Y
MOVE R2, R0 ; Vraćamo rezultat preko R0
POP R2
POP R1
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZRCALI_X PUSH R0 ; Zrcali BUFFER s obzirom na x-os
PUSH R1
PUSH R2
PUSH R3
PUSH R4
MOVE BUFFER, R2 ; Adresa prvog bajta BUFFER-a
MOVE R2, R3
ADD R3, 7, R3 ; Adresa zadnje bajta BUFFER-a
MOVE 4, R4 ; Brojač - 4 zato što ćemo morati napraviti 4 zamjene, prvi s zadnjim, drugi s predzadnjim itd.
LP_ZRC_X LOADB R0, (R2) ; Swap bajtova
LOADB R1, (R3)
STOREB R0, (R3)
STOREB R1, (R2)
ADD R2, 1, R2 ; Sljedeći bajt
SUB R3, 1, R3 ; Prethodni bajt
SUB R4, 1, R4
JR_NZ LP_ZRC_X
POP R4
POP R3
POP R2
POP R1
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
UI_DRAW_BG PUSH R0 ; Crta pozadinu korisničkog sučelja