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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:
;;
;;-----------------------------------------------------------------------------------------
;; 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
; signaliziraj pocetak
MOVE %B 100001, R0
STORE R0, (GPIO0_RGB)
; 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
MOVE %B 0001, R0
STORE R0, (GPIO0_LEDICE)
; 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) ; TODO: neka umjesto crne bude boja pozadine
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) ; TODO: neka umjesto crne bude boja slova
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
;TODO: izbriši donju liniju
CALL ISPISI_ZNAK
;TODO: u donjim potprogramima sa inkrementiranjem i dekrementiranjem pobrinuti se za overflowanje
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
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 CALL UPDATE_INPUT
JR GLAVNA_PETLJA
HALT
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
UPDATE_INPUT PUSH R0
PUSH R1
PUSH R2
PUSH R3
PUSH R4
PUSH R5
PUSH R6
;TODO: ledice switcheva ovisno o stanju
;TODO: ledice dugmadi ovisno o modu (ako su rgb, ako nisu, samo upalit ledice za dugmad s definiranom funkcijom)
LOAD R6, (GPIO1_BUTTONS)
CMP R6, %B 1111 ;sva 4 dugmeta = reset
JR_EQ ZOVI_RESET
LOAD R5, (GPIO1_SWITCHES)
AND R5, %B 11, R0
JR_Z SW_MODE_00
CMP R0, %B 01
JR_EQ SW_MODE_01
CMP R0, %B 10
JR_EQ SW_MODE_10
CMP R0, %B 11
JR_EQ SW_MODE_11
SW_MODE_00 CMP R6, %B 1000 ;mode za znakove i orijentaciju
CALL ZN_DEK
CMP R6, %B 0100
CALL ZN_INK
CMP R6, %B 0010
CALL ORJ_X_XOR
CMP R6, %B 0001
CALL ORJ_Y_XOR
JR END_UPDATE
SW_MODE_01 CMP R6, %B 1000 ;mode za boje
CALL BOJA_BG_DEK
CMP R6, %B 0100
CALL BOJA_BG_INK
CMP R6, %B 0010
CALL BOJA_ZN_DEK
CMP R6, %B 0001
CALL BOJA_ZN_INK
JR END_UPDATE
SW_MODE_10 CMP R6, %B 1000 ;mode za navigaciju
CALL REDAK_DEK
CMP R6, %B 0100
CALL REDAK_INK
CMP R6, %B 0010
CALL STUP_DEK
CMP R6, %B 0001
CALL STUP_INK
JR END_UPDATE
SW_MODE_11 CMP R6, %B 1000 ;mode za scale i unos znaka
CALL SCALE_DEK
CMP R6, %B 0100
CALL SCALE_INK
;CMP R6, %B 0010 ;dugme bez funkcije
;CALL
CMP R6, %B 0001
CALL CRTAJ_ZNAK
JR END_UPDATE
END_UPDATE
POP R6
POP R5
POP R4
POP R3
POP R2
POP R1
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_BG_INK ;boja pozadine inkrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_BG_DEK ;boja pozadine dekrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_ZN_INK ;boja znaka inkrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BOJA_ZN_DEK ;boja znaka dekrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZN_INK ;znak inkrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZN_DEK ;znak dekrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STUP_INK ;stupac inkrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
STUP_DEK ;stupac dekrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
REDAK_INK ;redak inkrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
REDAK_DEK ;redak dekrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ORJ_X_XOR ;orijentacija_x switch
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ORJ_Y_XOR ;orijentacija_y switch
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SCALE_INK ;scale inkrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
SCALE_DEK ;scale dekrement
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZOVI_RESET ;resetira poziciju na 0,0 i zove RESET_LCD
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
CRTAJ_ZNAK ;crta znak na zaslon na pritisak gumba, nije UI!
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
BUFFER_ZNAK ;učitava znak iz memorije u buffer
;TODO: prvo zrcali oko x-osi i/ili oko y-osi ako mora
;TODO: poziva se nakon promjene relevantnih parametara
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
UPDATE_ZNAK ;šalje parametre za ispis znaka i poziva ispis znaka
;TODO: zove se nakon promjene bilo kojeg parametra
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZRCALI_X PUSH R0 ; Zrcali BUFFER s obzirom na x-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_X LOADB R0, (R1)
CALL ZRCALI_BAJT_X ; Učita - zrcali - upiše natrag
STOREB R0, (R1)
ADD R1, 1, R1 ; Sljedeći bajt BUFFER-a
SUB R2, 1, R2
JR_NZ LP_ZRC_X
POP R2
POP R1
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZRCALI_BAJT_X PUSH R1 ; Zrcali pojedini bajt s obzirom na x-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_X 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_X
MOVE R2, R0 ; Vraćamo rezultat preko R0
POP R2
POP R1
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZRCALI_Y PUSH R0 ; Zrcali BUFFER s obzirom na y-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_Y 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_Y
POP R4
POP R3
POP R2
POP R1
POP R0
RET
; Prima fiksnim memorijskim lokacijama sljedeće parametre:
; 1. Pozicija X Labela POZICIJA_X
; 2. Pozicija Y Labela POZICIJA_Y
; 3. Boja znaka Labela BOJA_ZNK_PNT
; 4. Boja pozadine znaka Labela BOJA_BG_PNT
; 5. Bitmapa znaka Labela BUFFER
; 6. Veličina jednog bita u pixelima Labela SCALE
ISPISI_ZNAK PUSH R0
PUSH R1
PUSH R2
PUSH R3
PUSH R4
PUSH R5
PUSH R6
LOAD R1, (POZICIJA_X)
LOAD R2, (POZICIJA_Y)
MOVE BUFFER, R6
MOVE 8, R3 ; Vanjski brojač - 8 zato što bitmapa ima 8 redova
LP_REDAK_ZK LOADB R5, (R6) ; Učitaj jedan bajt
SHL R5, 18, R5 ; Pomak za 24 mjesta - pomaknemo bajt skroz lijevo
MOVE 8, R4 ; Unutarnji brojač - 8 zato što bajt ima 8 bita
LP_STUPAC_ZK SHL R5, 1, R5 ; Pomakni jedan bit lijevo
JR_NC BIT_POZADINA ; Ako je nula, moramo bojati pozadinskom bojom
BIT_ZNAK LOAD R0, (BOJA_ZNK_PNT) ; Ako je jedan, učitamo pointer za boju znaka u R0
JR ZNK_PNT_AREA
BIT_POZADINA LOAD R0, (BOJA_BG_PNT) ; Ako je pozadina, učitamo pointer za boju pozadine u R0
ZNK_PNT_AREA LOAD R0, (R0+BOJE) ; Učitamo boju u R0. Adresa boje je određena s labelom BOJE koja pokazuje na
; nultu boju, te R0 koji sadrži adresni offset pojedine boje.
PUSH R0 ; Boja
PUSH R1 ; x1
LOAD R0, (SCALE)
ADD R1, R0, R0
PUSH R0 ; x2 = x1 + SCALE
PUSH R2 ; y1
LOAD R0, (SCALE)
ADD R2, R0, R0
PUSH R0 ; y2 = y1 + SCALE
CALL PAINT_AREA ; Obojaj taj pravokutnik
ADD SP, 14, SP
LOAD R0, (SCALE)
ADD R1, R0, R1 ; Pomakni R1 (poziciju x) za SCALE piksela
SUB R4, 1, R4
JR_NZ LP_STUPAC_ZK
LOAD R1, (POZICIJA_X) ; Resetiraj R1 (poziciju x) jer prelazimo u sljedeći red
LOAD R0, (SCALE)
ADD R2, R0, R2 ; Pomakni R2 (poziciju y) za SCALE piksela
ADD R6, 1, R6 ; Pokazuje na sljedeću adresu BUFFER-a
SUB R3, 1, R3
JR_NZ LP_REDAK_ZK
POP R6
POP R5
POP R4
POP R3
POP R2
POP R1
POP R0
RET
;------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
POZICIJA_X DW 0 ; Pixeli - apsolutne koordinate
POZICIJA_Y DW 0 ; Pixeli
REDAK DW 0 ;trenutni redak
STUPAC DW 0 ;trenutni stupac
MAXRED EQU %D 40
MAXSTUP EQU %D 30
MAXSCALE EQU %D 31 ;max je 30, rušimo u 0 ako je 31
ORIJENTACIJA_X DW 0 ;zrcaljenje gore-dolje
ORIJENTACIJA_Y DW 0 ;zrcaljenje lijevo-desno
SCALE DW 1 ; Koliko pixela je velik jedan bit
BILO_PROMJENE DW 0 ;Znak se ne upisuje ako nije bilo promjene
ZNAK_PNT DW 0 ; Pozicija znaka u ZNAKOVI
BOJA_BG_PNT DW 8 ; Pozicija boje pozadine
BOJA_ZNK_PNT DW 10 ; Pozicija boje znakova
BUFFER DB %B 00000000, %B 00111100, %B 01100110, %B 01100110, %B 01111110, %B 01100110, %B 01100110, %B 01100110 ;a
UKUPNO_BOJA EQU %D 5
;65K color: 16-bit/pixel (RGB 5-6-5 bits input)
BOJE DW 0FFFF ;bijela
CRNA DW 0 ;crna
CRVENA DW 0F800 ;crvena
ZELENA DW 007E0 ;zelena
PLAVA DW 0001F ;plava
UKUPNO_ZNAKOVA EQU %D 37
ZNAKOVI DB %B 00000000, %B 00000000, %B 00000000, %B 00000000, %B 00000000, %B 00000000, %B 00000000, %B 00000000 ;praznina
DB %B 00000000, %B 00111100, %B 01100110, %B 01100110, %B 01111110, %B 01100110, %B 01100110, %B 01100110 ;a
DB %B 00000000, %B 01111100, %B 01100110, %B 01100110, %B 01111100, %B 01100110, %B 01100110, %B 01111100 ;b
DB %B 00000000, %B 00111100, %B 01100110, %B 01100000, %B 01100000, %B 01100000, %B 01100110, %B 00111100 ;c
DB %B 00000000, %B 01111100, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 01111100 ;d
DB %B 00000000, %B 01111110, %B 01100000, %B 01100000, %B 01111100, %B 01100000, %B 01100000, %B 01111110 ;e
DB %B 00000000, %B 01111110, %B 01100000, %B 01100000, %B 01111100, %B 01100000, %B 01100000, %B 01100000 ;f
DB %B 00000000, %B 00111100, %B 01100110, %B 01100000, %B 01100000, %B 01101110, %B 01100110, %B 00111100 ;g
DB %B 00000000, %B 01100110, %B 01100110, %B 01100110, %B 01111110, %B 01100110, %B 01100110, %B 01100110 ;h
DB %B 00000000, %B 00111100, %B 00011000, %B 00011000, %B 00011000, %B 00011000, %B 00011000, %B 00111100 ;i
DB %B 00000000, %B 00011110, %B 00001100, %B 00001100, %B 00001100, %B 01101100, %B 01101100, %B 00111000 ;j
DB %B 00000000, %B 01100110, %B 01101100, %B 01111000, %B 01110000, %B 01111000, %B 01101100, %B 01100110 ;k
DB %B 00000000, %B 01100000, %B 01100000, %B 01100000, %B 01100000, %B 01100000, %B 01100000, %B 01111110 ;l
DB %B 00000000, %B 01100011, %B 01110111, %B 01111111, %B 01101011, %B 01100011, %B 01100011, %B 01100011 ;m
DB %B 00000000, %B 01100011, %B 01110011, %B 01111011, %B 01101111, %B 01100111, %B 01100011, %B 01100011 ;n
DB %B 00000000, %B 00111100, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 00111100 ;o
DB %B 00000000, %B 01111100, %B 01100110, %B 01100110, %B 01100110, %B 01111100, %B 01100000, %B 01100000 ;p
DB %B 00000000, %B 00111100, %B 01100110, %B 01100110, %B 01100110, %B 01101110, %B 00111100, %B 00000110 ;q
DB %B 00000000, %B 01111100, %B 01100110, %B 01100110, %B 01111100, %B 01111000, %B 01101100, %B 01100110 ;r
DB %B 00000000, %B 00111100, %B 01100110, %B 01100000, %B 00111100, %B 00000110, %B 01100110, %B 00111100 ;s
DB %B 00000000, %B 01111110, %B 01011010, %B 00011000, %B 00011000, %B 00011000, %B 00011000, %B 00011000 ;t
DB %B 00000000, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 00111110 ;u
DB %B 00000000, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 01100110, %B 00111100, %B 00011000 ;v
DB %B 00000000, %B 01100011, %B 01100011, %B 01100011, %B 01101011, %B 01111111, %B 01110111, %B 01100011 ;w
DB %B 00000000, %B 01100011, %B 01100011, %B 00110110, %B 00011100, %B 00110110, %B 01100011, %B 01100011 ;x
DB %B 00000000, %B 01100110, %B 01100110, %B 01100110, %B 00111100, %B 00011000, %B 00011000, %B 00011000 ;y
DB %B 00000000, %B 01111110, %B 00000110, %B 00001100, %B 00011000, %B 00110000, %B 01100000, %B 01111110 ;z
ZNAMENKE DB %B 00000000, %B 00111100, %B 01100110, %B 01101110, %B 01110110, %B 01100110, %B 01100110, %B 00111100 ;0
DB %B 00000000, %B 00011000, %B 00011000, %B 00111000, %B 00011000, %B 00011000, %B 00011000, %B 01111110 ;1
DB %B 00000000, %B 00111100, %B 01100110, %B 00000110, %B 00001100, %B 00110000, %B 01100000, %B 01111110 ;2
DB %B 00000000, %B 00111100, %B 01100110, %B 00000110, %B 00011100, %B 00000110, %B 01100110, %B 00111100 ;3
DB %B 00000000, %B 00011100, %B 00111100, %B 01101100, %B 11001100, %B 11111110, %B 00001100, %B 00001100 ;4
DB %B 00000000, %B 01111110, %B 01100000, %B 01111100, %B 00000110, %B 00000110, %B 01100110, %B 00111100 ;5
DB %B 00000000, %B 00111100, %B 01100110, %B 01100000, %B 01111100, %B 01100110, %B 01100110, %B 00111100 ;6
DB %B 00000000, %B 01111110, %B 01100110, %B 00001100, %B 00001100, %B 00011000, %B 00011000, %B 00011000 ;7
DB %B 00000000, %B 00111100, %B 01100110, %B 01100110, %B 00111100, %B 01100110, %B 01100110, %B 00111100 ;8
DB %B 00000000, %B 00111100, %B 01100110, %B 01100110, %B 00111110, %B 00000110, %B 01100110, %B 00111100 ;9