removed old asm file

projects/lcdsnake/lcd_default.asm

@@ -1,351 +0,0 @@
-; Zapojeni (Připojen DMC-50399 v 4-bitovem modu):
-;                   +------u------+
-;    Vcc -> reset --+ /RST    Vcc +-- napajeni +5V
-;                 --+ PD0     PB7 +-- RS (0=instr W, BF+addr R; 1=data W/R)
-;                 --+ PD1     PB6 +-- R/W (1=read,0=write)
-;                 --+ PA1     PB5 +-- E (clock, active falling edge)
-;                 --+ PA0     PB4 +-- 
-;                 --+ PD2     PB3 +-- DATA 7
-;                 --+ PD3     PB2 +-- DATA 6
-;                 --+ PD4     PB1 +-- DATA 5
-;                 --+ PD5     PB0 +-- DATA 4
-;             GND --+ GND     PD6 +-- 
-;                   +-------------+
-
-;DMC-50399: 
-; 1 - GND
-; 2 - +5V
-; 3 - 0V (lcd driver)
-; 4 - RS
-; 5 - R/W
-; 6 - E
-; 7 - DATA 0
-; 8 - DATA 1
-;...
-;14 - DATA 7
-
-.device attiny2313
-;běží na 4MHz, ckdiv8=1 (vypnuto)
-;250x16=1ms=1000us
-
-;LFUSE: 0xE2 -U lfuse:w:0xE2:m
-;HFUSE: 0xDF -U hfuse:w:0xDF:m
-
-
-;K O N S T A N T Y   +   P R E Z D I V K Y   P O R T U   A   P I N U
-.equ LCDPORT = PORTB
-.equ LCDPIN = PINB
-.equ LCDDDR = DDRB
-
-.equ RS = 7
-.equ RW = 6
-.equ E = 5
-
-.equ LCD_CLEAR = 0b00000001
-.equ LCD_HOME = 0b00000010
-
-.equ LCD_MODE_INC_NOSHIFT = 0b00000110
-.equ LCD_MODE_INC_SHIFT = 0b00000111
-.equ LCD_MODE_DEC_NOSHIFT = 0b00000100
-.equ LCD_MODE_DEC_SHIFT = 0b00000101
-
-.equ LCD_DISPLAY_DISABLED = 0b00001000
-.equ LCD_DISPLAY_NOCURSOR = 0b00001100
-.equ LCD_DISPLAY_CURSOR = 0b00001110
-.equ LCD_DISPLAY_ALTER = 0b00001101
-.equ LCD_DISPLAY_CURSOR_ALTER = 0b00001111
-
-.equ LCD_CURSOR_LEFT = 0b00010000
-.equ LCD_CURSOR_RIGHT = 0b00010100
-.equ LCD_SHIFT_LEFT = 0b00011000
-.equ LCD_SHIFT_RIGHT = 0b00011100
-
-
-;5x7 font, 1-line
-.equ LCD_MODE_4BIT_1LINE = 0b00100000
-;.equ LCD_MODE_8BIT_1LINE = 0b00110000
-;5x7 font, 2-line
-.equ LCD_MODE_4BIT_2LINE = 0b00101000
-;.equ LCD_MODE_8BIT_2LINE = 0b00111000
-
-.equ ROW1_ADDR = 0x00
-.equ ROW2_ADDR = 0x40
-.equ ROW3_ADDR = 0x14
-.equ ROW4_ADDR = 0x54
-
-
-
-;aliases
-.def 	ZH		= r31
-.def 	ZL		= r30
-.def 	YH		= r29
-.def 	YL		= r28
-.def 	XH		= r27
-.def 	XL		= r26
-
-; Z A C A T E K   P R O G R A M U
-;vektory preruseni
-.org	0x0000				;RESET
-	rjmp RESET			;skok na start po resetu
-
-.org	0x0013
-
-;nastaveni po resetu
-.DB	"HD44780 INTERFACE"		;(nazev programu)
-RESET:
-	ldi r16,low(RAMEND)		;nastavi stack pointer
-	out SPL,r16
-	cli				;zakazat vsechna preruseni
-
-; Nastaveni portu
-	;PORTB = LCDPORT
-	ldi r16,0b11111111		;smer portu B
-	out LCDDDR,r16
-	ldi r16,0b00000000		;vypnout B
-	out LCDPORT,r16
-	
-	sei				;Global Interrupt Enable
-
-; == display init ==
-	rcall LCD_INIT
-
-	ldi r17,LCD_MODE_INC_NOSHIFT
-	rcall TX_INSTR
-
-	ldi r17,LCD_DISPLAY_NOCURSOR
-	rcall TX_INSTR
-
-; == load user-defined characters to CGRAM == (default, array label named MYCHARS, end-mark=0xFE)
-	ldi r17,0
-	rcall CGRAM_SET_ADDR
-
-	ldi ZH,high(MYCHARS*2)
-	ldi ZL,low(MYCHARS*2)
-CGRAM_loop:
-	lpm r17,Z+
-	cpi r17,0xFE
-	breq CGRAM_loop_end
-	rcall TX_DATA
-	rjmp CGRAM_loop
-CGRAM_loop_end:
-
-
-; == pgm body ==
-
-;load text to DDRAM
-	ldi r17,ROW1_ADDR
-	rcall DDRAM_SET_ADDR
-
-	ldi ZH,high(MYTEXT1*2)
-	ldi ZL,low(MYTEXT1*2)
-DDRAM_loop:
-	lpm r17,Z+
-	cpi r17,0xFE
-	breq DDRAM_loop_end
-	rcall TX_DATA
-	rjmp DDRAM_loop
-DDRAM_loop_end:
-
-;load text to DDRAM
-	ldi r17,ROW2_ADDR
-	rcall DDRAM_SET_ADDR
-
-	ldi ZH,high(MYTEXT2*2)
-	ldi ZL,low(MYTEXT2*2)
-DDRAM2_loop:
-	lpm r17,Z+
-	cpi r17,0xFE
-	breq DDRAM2_loop_end
-	rcall TX_DATA
-	rjmp DDRAM2_loop
-DDRAM2_loop_end:
-
-;direct write to X,Y - example
-	ldi r16,3	;Y, zacina 0 a roste smerem dolu
-	ldi r17,5	;X, zacina nulou a roste smerem doprava
-	rcall LCD_CURSOR_XY
-	ldi r17,"%"
-	rcall TX_DATA
-	ldi r17,"%"
-	rcall TX_DATA
-	ldi r17,"%"
-	rcall TX_DATA
-;infinite loop
-loop:	rjmp loop
-
-
-MYTEXT1:
-.DB	0,0,0," POKUSNY TEXT ",0,0,0,0xFE
-MYTEXT2:
-.DB	"Opravdu pekny text!",0xFE
-
-
-
-; == USER-DEFINED CHARS ==
-MYCHARS:
-; 5x8, first 3 bits are not used
-;end of mychars
-.DB	0xe,0x1f,0x15,0x1f,0x1f,0x1f,0x15	;smajlik
-
-;konec
-.DB	0xFE
-
-
-
-
-
-;r16=Y
-;r17=X
-LCD_CURSOR_XY:
-	cpi r16,0
-	brne test1
-fail:	ldi r16,ROW1_ADDR
-	rjmp addrdone
-test1:
-	cpi r16,1
-	brne test2
-	ldi r16,ROW2_ADDR
-	rjmp addrdone
-test2:
-	cpi r16,2
-	brne test3
-	ldi r16,ROW3_ADDR
-	rjmp addrdone
-test3:
-	cpi r16,3
-	brne fail
-	ldi r16,ROW4_ADDR
-addrdone:
-	add r17,r16
-	rcall DDRAM_SET_ADDR
-	ret
-
-;r16=počet ms (cca)
-delay:
-	push r17	;2
-	push r18	;2
-d1:
-	ldi r17,250	;1
-d2:
-	ldi r18,14	;1
-d3:
-	dec r18		;1
-	nop
-	brne d3		;2 (1
-	dec r17		;   +1)
-	brne d2		;2 (1
-	dec r16		;   +1)
-	brne d1		;2 (1)
-	
-	pop r18		;2
-	pop r17		;2
-	ret
-
-
-LCD_INIT:
-	ldi r16,16
-	rcall delay
-	ldi r16,0b00000010		;4bit
-	out PORTB,r16
-	rcall LCD_CLK
-	ldi r16,5
-	rcall delay
-	ldi r17,LCD_MODE_4BIT_2LINE		;set 4-bit mode
-	rcall TX_INSTR
-	ret
-
-;r17
-TX_INSTR:
-	swap r17			;send high nibble
-	mov r16,r17
-	andi r16,0b00001111
-	out LCDPORT,r16
-	rcall LCD_CLK
-
-	swap r17			;send low nibble
-	mov r16,r17
-	andi r16,0b00001111
-	out LCDPORT,r16
-	rcall LCD_CLK
-
-	ret
-
-;r17
-TX_DATA:
-	swap r17			;send high nibble
-	mov r16,r17
-	andi r16,0b00001111
-	sbr r16,(1<<RS)
-	out LCDPORT,r16
-	rcall LCD_CLK
-
-	swap r17			;send low nibble
-	mov r16,r17
-	andi r16,0b00001111
-	sbr r16,(1<<RS)
-	out LCDPORT,r16
-	rcall LCD_CLK
-
-	ret
-
-;r17 disabled to reduce code size
-;RX_DATA:
-;	;input
-;	ldi r16,0b11110000		;LCDPORT dirrection (RS RW E n.c.) output, (D7 D6 D5 D4) input
-;	out LCDDDR,r16
-;	ldi r16,0b00001111		;pullups to data pins enabled
-;	out LCDPORT,r16
-;
-;	clr r17
-;	ldi r16,(1<<RW)|(1<<RS)
-;	out LCDPORT,r16			;set LCD to read mode, for data
-;
-;	rcall LCD_CLK			;receive high nibble
-;	in r16,LCDPIN
-;	andi r16,0b00001111
-;	or r17,r16
-;	swap r17			;store high nibble
-;
-;	rcall LCD_CLK			;receive low nibble
-;	in r16,LCDPIN
-;	andi r16,0b00001111
-;	or r17,r16			;store low nibble
-;	
-;	;output
-;	ldi r16,0b11111111		;LCDPORT as output (RS RW E n.c. D7 D6 D5 D4)
-;	out LCDDDR,r16
-;	ldi r16,0b00000000		;LCDPORT off
-;	out LCDPORT,r16
-;	
-;	;r17=received value (D7 D6 D5 D4 D3 D2 D1 D0)
-;	ret
-
-LCD_CLK:
-	sbi LCDPORT,E			;EXECUTE on
-	nop
-	nop
-	nop
-	cbi LCDPORT,E			;EXECUTE off
-	ldi r16,150			;pause: 100 for 4MHZ
-clkw:
-	dec r16
-	brne clkw
-	ret
-
-;r17
-;7 bitu (1.radek zacina 00,druhej 40)
-DDRAM_SET_ADDR:
-	clr r16
-	sbr r16,0b10000000
-	or r17,r16
-	rcall TX_INSTR
-	ret
-
-;r17
-;6 bitu (5,4,3 = znak, 2,1,0 = radek - shora)
-CGRAM_SET_ADDR:
-	clr r16
-	sbr r16,0b01000000
-	or r17,r16
-	rcall TX_INSTR
-	ret