📄 8字循环.lst
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AVRASM ver. 1.30 8字循环.ASM Tue Jan 01 21:05:57 2002
;在SL-AVR开发实验器LED上实现字符8的循环移位显示程序
;请你 1.如何修改字形; 2.改变字符个数,二位或三位或一隔一显示;
;3. 改变字形移动方向; 4.改变字符移位速度;
;
.include"8535def.inc" ;器件配置文件
;***************************************************************************
;* A P P L I C A T I O N N O T E F O R T H E A V R F A M I L Y
;*
;* Number :AVR000
;* File Name :"8535def.inc"
;* Title :Register/Bit Definitions for the AT90S8535
;* Date :99.01.28
;* Version :1.30
;* Support telephone :+47 72 88 43 88 (ATMEL Norway)
;* Support fax :+47 72 88 43 99 (ATMEL Norway)
;* Support E-mail :avr@atmel.com
;* Target MCU :AT90S8535
;*
;* DESCRIPTION
;* When including this file in the assembly program file, all I/O register
;* names and I/O register bit names appearing in the data book can be used.
;* In addition, the six registers forming the three data pointers X, Y and
;* Z have been assigned names XL - ZH. Highest RAM address for Internal
;* SRAM is also defined
;*
;* The Register names are represented by their hexadecimal address.
;*
;* The Register Bit names are represented by their bit number (0-7).
;*
;* Please observe the difference in using the bit names with instructions
;* such as "sbr"/"cbr" (set/clear bit in register) and "sbrs"/"sbrc"
;* (skip if bit in register set/cleared). The following example illustrates
;* this:
;*
;* in r16,PORTB ;read PORTB latch
;* sbr r16,(1<<PB6)+(1<<PB5) ;set PB6 and PB5 (use masks, not bit#)
;* out PORTB,r16 ;output to PORTB
;*
;* in r16,TIFR ;read the Timer Interrupt Flag Register
;* sbrc r16,TOV0 ;test the overflow flag (use bit#)
;* rjmp TOV0_is_set ;jump if set
;* ... ;otherwise do something else
;***************************************************************************
;***** Specify Device
.device AT90S8535
;***** I/O Register Definitions
.equ SREG =$3f
.equ SPH =$3e
.equ SPL =$3d
.equ GIMSK =$3b
.equ GIFR =$3a
.equ TIMSK =$39
.equ TIFR =$38
.equ MCUCR =$35
.equ MCUSR =$34
.equ TCCR0 =$33
.equ TCNT0 =$32
.equ TCCR1A =$2f
.equ TCCR1B =$2e
.equ TCNT1H =$2d
.equ TCNT1L =$2c
.equ OCR1AH =$2b
.equ OCR1AL =$2a
.equ OCR1BH =$29
.equ OCR1BL =$28
.equ ICR1H =$27
.equ ICR1L =$26
.equ TCCR2 =$25
.equ TCNT2 =$24
.equ OCR2 =$23
.equ ASSR =$22
.equ WDTCR =$21
.equ EEARH =$1f
.equ EEARL =$1e
.equ EEDR =$1d
.equ EECR =$1c
.equ PORTA =$1b
.equ DDRA =$1a
.equ PINA =$19
.equ PORTB =$18
.equ DDRB =$17
.equ PINB =$16
.equ PORTC =$15
.equ DDRC =$14
.equ PINC =$13
.equ PORTD =$12
.equ DDRD =$11
.equ PIND =$10
.equ SPDR =$0f
.equ SPSR =$0e
.equ SPCR =$0d
.equ UDR =$0c
.equ USR =$0b
.equ UCR =$0a
.equ UBRR =$09
.equ ACSR =$08
.equ ADMUX =$07
.equ ADCSR =$06
.equ ADCH =$05
.equ ADCL =$04
;***** Bit Definitions
.equ EXTRF =1
.equ PORF =0
.equ INT1 =7
.equ INT0 =6
.equ INTF1 =7
.equ INTF0 =6
.equ OCIE2 =7
.equ TOIE2 =6
.equ TICIE1 =5
.equ OCIE1A =4
.equ OCIE1B =3
.equ TOIE1 =2
.equ TOIE0 =0
.equ OCF2 =7
.equ TOV2 =6
.equ ICF1 =5
.equ OCF1A =4
.equ OCF1B =3
.equ TOV1 =2
.equ TOV0 =0
.equ SE =6
.equ SM1 =5
.equ SM0 =4
.equ ISC11 =3
.equ ISC10 =2
.equ ISC01 =1
.equ ISC00 =0
.equ CS02 =2
.equ CS01 =1
.equ CS00 =0
.equ COM1A1 =7
.equ COM1A0 =6
.equ COM1B1 =5
.equ COM1B0 =4
.equ PWM11 =1
.equ PWM10 =0
.equ ICNC1 =7
.equ ICES1 =6
.equ CTC1 =3
.equ CS12 =2
.equ CS11 =1
.equ CS10 =0
.equ PWM2 =6
.equ COM21 =5
.equ COM20 =4
.equ CTC2 =3
.equ CS22 =2
.equ CS21 =1
.equ CS20 =0
.equ AS2 =3
.equ TCN2UB =2
.equ OCR2UB =1
.equ TCR2UB =0
.equ WDDE =4
.equ WDE =3
.equ WDP2 =2
.equ WDP1 =1
.equ WDP0 =0
.equ EERIE =3
.equ EEMWE =2
.equ EEWE =1
.equ EERE =0
.equ PA7 =7
.equ PA6 =6
.equ PA5 =5
.equ PA4 =4
.equ PA3 =3
.equ PA2 =2
.equ PA1 =1
.equ PA0 =0
.equ DDA7 =7
.equ DDA6 =6
.equ DDA5 =5
.equ DDA4 =4
.equ DDA3 =3
.equ DDA2 =2
.equ DDA1 =1
.equ DDA0 =0
.equ PINA7 =7
.equ PINA6 =6
.equ PINA5 =5
.equ PINA4 =4
.equ PINA3 =3
.equ PINA2 =2
.equ PINA1 =1
.equ PINA0 =0
.equ PB7 =7
.equ PB6 =6
.equ PB5 =5
.equ PB4 =4
.equ PB3 =3
.equ PB2 =2
.equ PB1 =1
.equ PB0 =0
.equ DDB7 =7
.equ DDB6 =6
.equ DDB5 =5
.equ DDB4 =4
.equ DDB3 =3
.equ DDB2 =2
.equ DDB1 =1
.equ DDB0 =0
.equ PINB7 =7
.equ PINB6 =6
.equ PINB5 =5
.equ PINB4 =4
.equ PINB3 =3
.equ PINB2 =2
.equ PINB1 =1
.equ PINB0 =0
.equ PC7 =7
.equ PC6 =6
.equ PC5 =5
.equ PC4 =4
.equ PC3 =3
.equ PC2 =2
.equ PC1 =1
.equ PC0 =0
.equ DDC7 =7
.equ DDC6 =6
.equ DDC5 =5
.equ DDC4 =4
.equ DDC3 =3
.equ DDC2 =2
.equ DDC1 =1
.equ DDC0 =0
.equ PINC7 =7
.equ PINC6 =6
.equ PINC5 =5
.equ PINC4 =4
.equ PINC3 =3
.equ PINC2 =2
.equ PINC1 =1
.equ PINC0 =0
.equ PD7 =7
.equ PD6 =6
.equ PD5 =5
.equ PD4 =4
.equ PD3 =3
.equ PD2 =2
.equ PD1 =1
.equ PD0 =0
.equ DDD7 =7
.equ DDD6 =6
.equ DDD5 =5
.equ DDD4 =4
.equ DDD3 =3
.equ DDD2 =2
.equ DDD1 =1
.equ DDD0 =0
.equ PIND7 =7
.equ PIND6 =6
.equ PIND5 =5
.equ PIND4 =4
.equ PIND3 =3
.equ PIND2 =2
.equ PIND1 =1
.equ PIND0 =0
.equ SPIE =7
.equ SPE =6
.equ DORD =5
.equ MSTR =4
.equ CPOL =3
.equ CPHA =2
.equ SPR1 =1
.equ SPR0 =0
.equ SPIF =7
.equ WCOL =6
.equ RXC =7
.equ TXC =6
.equ UDRE =5
.equ FE =4
.equ OR =3
.equ RXCIE =7
.equ TXCIE =6
.equ UDRIE =5
.equ RXEN =4
.equ TXEN =3
.equ CHR9 =2
.equ RXB8 =1
.equ TXB8 =0
.equ ACD =7
.equ ACO =5
.equ ACI =4
.equ ACIE =3
.equ ACIC =2
.equ ACIS1 =1
.equ ACIS0 =0
.equ MUX2 =2
.equ MUX1 =1
.equ MUX0 =0
.equ ADEN =7
.equ ADSC =6
.equ ADFR =5
.equ ADIF =4
.equ ADIE =3
.equ ADPS2 =2
.equ ADPS1 =1
.equ ADPS0 =0
.def XL =r26
.def XH =r27
.def YL =r28
.def YH =r29
.def ZL =r30
.def ZH =r31
.equ RAMEND =$25F ;Last On-Chip SRAM location
.equ XRAMEND =$25F
.equ E2END =$1FF
.equ FLASHEND=$FFF
.equ INT0addr=$001 ;External Interrupt0 Vector Address
.equ INT1addr=$002 ;External Interrupt1 Vector Address
.equ OC2addr =$003 ;Timer2 compare match Vector Address
.equ OVF2addr=$004 ;Timer2 overflow Vector Address
.equ ICP1addr=$005 ;Timer1 Input Capture Vector Address
.equ OC1Aaddr=$006 ;Timer1 Output Compare A Interrupt Vector Address
.equ OC1Baddr=$007 ;Timer1 Output Compare B Interrupt Vector Address
.equ OVF1addr=$008 ;Overflow1 Interrupt Vector Address
.equ OVF0addr=$009 ;Overflow0 Interrupt Vector Address
.equ SPIaddr =$00A ;SPI Interrupt Vector Address
.equ URXCaddr=$00B ;UART Receive Complete Interrupt Vector Address
.equ UDREaddr=$00C ;UART Data Register Empty Interrupt Vector Address
.equ UTXCaddr=$00D ;UART Transmit Complete Interrupt Vector Address
.equ ADCCaddr=$00E ;ADC Conversion Complete Interrupt Vector Address
.equ ERDYaddr=$00F ;EEPROM Write Complete Interrupt Vector Address
.equ ACIaddr =$010 ;Analog Comparator Interrupt Vector Address .def temp=r16 ;数据暂存器
.def scndp=r22 ;LED显示位置暂存器
.org $0000
000000 c02f rjmp reset
.org $030
000030 e50f reset: ldi temp,low(ramend) ;设置堆栈指针。
000031 bf0d out spl,temp
000032 e002 ldi temp,high(ramend)
000033 bf0e out sph,temp
000034 ef0f ldi temp,$ff ;设置B、D口输出。
000035 bb07 out ddrb,temp
000036 bb01 out ddrd,temp
000037 bb02 out portd,temp
000038 e70f ldi temp,$7f ;字形8的代码为$7F(可修改)。
000039 bb08 out portb,temp
00003a 9408 again: sec ;置进位位为1(低电平LED亮,高电平LED灭)
00003b ed6f ldi scndp,0b11011111 ;扫描显示SCANDP(可修改)
00003c bb62 route: out portd,scndp ;从LED最左一位(D5)右移(可修改)
00003d e400 ldi temp,$40 ;设置延时常数(可修改)。
00003e d003 rcall delay ;调用延时
00003f 9567 ror scndp ;右循环(可修改)
000040 f7c8 brcc again ;显示下一位
000041 cffa rjmp route ;循环显示
000042 930f delay: push temp ;延时子程序。
000043 930f m1: push temp
000044 930f m2: push temp
000045 950a m3: dec temp
000046 f7f1 brne m3
000047 910f pop temp
000048 950a dec temp
000049 f7d1 brne m2
00004a 910f pop temp
00004b 950a dec temp
00004c f7b1 brne m1
00004d 910f pop temp
00004e 950a dec temp
00004f f791 brne delay
000050 9508 ret
Assembly complete with no errors.
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