📄 main.lst
字号:
__text_start:
__start:
0034 E5CF LDI R28,0x5F
0035 E0D4 LDI R29,4
0036 BFCD OUT 0x3D,R28
0037 BFDE OUT 0x3E,R29
0038 51C0 SUBI R28,0x10
0039 40D0 SBCI R29,0
003A EA0A LDI R16,0xAA
003B 8308 STD Y+0,R16
003C 2400 CLR R0
003D E7E4 LDI R30,0x74
003E E0F0 LDI R31,0
003F E010 LDI R17,0
0040 37E6 CPI R30,0x76
0041 07F1 CPC R31,R17
0042 F011 BEQ 0x0045
0043 9201 ST R0,Z+
0044 CFFB RJMP 0x0040
0045 8300 STD Z+0,R16
0046 E5E4 LDI R30,0x54
0047 E0F0 LDI R31,0
0048 E6A0 LDI R26,0x60
0049 E0B0 LDI R27,0
004A E010 LDI R17,0
004B 36E8 CPI R30,0x68
004C 07F1 CPC R31,R17
004D F021 BEQ 0x0052
004E 95C8 LPM
004F 9631 ADIW R30,1
0050 920D ST R0,X+
0051 CFF9 RJMP 0x004B
0052 940E008A CALL _main
_exit:
0054 CFFF RJMP _exit
FILE: D:\AVR\ICC\usart_t\delay.c
(0001) /*-----------------------------------------------------------------------
(0002) 延时函数
(0003) 系统时钟：8M
(0004) -----------------------------------------------------------------------*/
(0005) void delay_1us(void) //1us延时函数
(0006) {
(0007) asm("nop");
_delay_1us:
0055 0000 NOP
0056 9508 RET
_delay_nus:
i --> R20
n --> R22
0057 940E00AE CALL push_gset2
0059 01B8 MOVW R22,R16
(0008) }
(0009)
(0010) void delay_nus(unsigned int n) //N us延时函数
(0011) {
(0012) unsigned int i=0;
005A 2744 CLR R20
005B 2755 CLR R21
(0013) for (i=0;i<n;i++)
005C C003 RJMP 0x0060
(0014) delay_1us();
005D DFF7 RCALL _delay_1us
005E 5F4F SUBI R20,0xFF
005F 4F5F SBCI R21,0xFF
0060 1746 CP R20,R22
0061 0757 CPC R21,R23
0062 F3D0 BCS 0x005D
0063 940E00A5 CALL pop_gset2
0065 9508 RET
(0015) }
(0016)
(0017) void delay_1ms(void) //1ms延时函数
(0018) {
(0019) unsigned int i;
(0020) for (i=0;i<1140;i++);
_delay_1ms:
i --> R16
0066 2700 CLR R16
0067 2711 CLR R17
0068 C002 RJMP 0x006B
0069 5F0F SUBI R16,0xFF
006A 4F1F SBCI R17,0xFF
006B 3704 CPI R16,0x74
006C E0E4 LDI R30,4
006D 071E CPC R17,R30
006E F3D0 BCS 0x0069
006F 9508 RET
_delay_nms:
i --> R20
n --> R22
0070 940E00AE CALL push_gset2
0072 01B8 MOVW R22,R16
(0021) }
(0022)
(0023) void delay_nms(unsigned int n) //N ms延时函数
(0024) {
(0025) unsigned int i=0;
0073 2744 CLR R20
0074 2755 CLR R21
(0026) for (i=0;i<n;i++)
0075 C003 RJMP 0x0079
(0027) delay_1ms();
0076 DFEF RCALL _delay_1ms
0077 5F4F SUBI R20,0xFF
0078 4F5F SBCI R21,0xFF
0079 1746 CP R20,R22
007A 0757 CPC R21,R23
007B F3D0 BCS 0x0076
007C 940E00A5 CALL pop_gset2
007E 9508 RET
FILE: D:\AVR\ICC\usart_t\main.c
(0001) //ICC-AVR application builder : 2005-9-4 20:55:51
(0002) // Target : M16
(0003) // Crystal: 8.0000Mhz
(0004)
(0005) #include <iom16v.h>
(0006) #include <macros.h>
(0007) #include <stdio.h>
(0008)
(0009) void delay_nms(unsigned int n);
(0010)
(0011) //UART0 initialize
(0012) // desired baud rate: 9600
(0013) // actual: baud rate:9615 (0.2%)
(0014) // char size: 8 bit
(0015) // parity: Disabled
(0016) void uart0_init(void)
(0017) {
(0018) UCSRB = 0x00; //disable while setting baud rate
_uart0_init:
007F 2422 CLR R2
0080 B82A OUT 0x0A,R2
(0019) UCSRA = 0x00;
0081 B82B OUT 0x0B,R2
(0020) UCSRC = (1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0);//8位数据+1位STOP位
0082 E886 LDI R24,0x86
0083 BD80 OUT 0x20,R24
(0021) UBRRL = 0x33; //set baud rate lo
0084 E383 LDI R24,0x33
0085 B989 OUT 0x09,R24
(0022) UBRRH = 0x00; //set baud rate hi
0086 BC20 OUT 0x20,R2
(0023) UCSRB = (1<<RXEN)|(1<<TXEN);//允许发送和接收
0087 E188 LDI R24,0x18
0088 B98A OUT 0x0A,R24
0089 9508 RET
(0024) }
(0025)
(0026) void main(void)
(0027) {
(0028) unsigned char i;
(0029) uart0_init();
_main:
i --> R20
008A DFF4 RCALL _uart0_init
(0030) puts("ATmega16 uart Test!");
008B E600 LDI R16,0x60
008C E010 LDI R17,0
008D 940E00DE CALL _puts
(0031) putchar(0x0d);
008F E00D LDI R16,0xD
0090 940E00C7 CALL _putchar
(0032) putchar(0x0a);
0092 E00A LDI R16,0xA
0093 940E00C7 CALL _putchar
0095 C00D RJMP 0x00A3
(0033) while(1)
(0034) {
(0035) for(i=0;i<20;i++)
0096 2744 CLR R20
0097 C009 RJMP 0x00A1
(0036) {
(0037) putchar(i+0x30);
0098 2F04 MOV R16,R20
0099 5D00 SUBI R16,0xD0
009A 940E00C7 CALL _putchar
(0038) delay_nms(1000);
FILE: <library>
009C EE08 LDI R16,0xE8
009D E013 LDI R17,3
009E 940E0070 CALL _delay_nms
00A0 9543 INC R20
00A1 3144 CPI R20,0x14
00A2 F3A8 BCS 0x0098
00A3 CFF2 RJMP 0x0096
00A4 9508 RET
pop_gset2:
00A5 E0E2 LDI R30,2
00A6 940C00B4 JMP pop
push_gset5:
00A8 92FA ST R15,-Y
00A9 92EA ST R14,-Y
push_gset4:
00AA 92DA ST R13,-Y
00AB 92CA ST R12,-Y
push_gset3:
00AC 92BA ST R11,-Y
00AD 92AA ST R10,-Y
push_gset2:
00AE 937A ST R23,-Y
00AF 936A ST R22,-Y
push_gset1:
00B0 935A ST R21,-Y
00B1 934A ST R20,-Y
00B2 9508 RET
pop_gset1:
00B3 E0E1 LDI R30,1
pop:
00B4 9149 LD R20,Y+
00B5 9159 LD R21,Y+
00B6 FDE0 SBRC R30,0
00B7 9508 RET
00B8 9169 LD R22,Y+
00B9 9179 LD R23,Y+
00BA FDE1 SBRC R30,1
00BB 9508 RET
00BC 90A9 LD R10,Y+
00BD 90B9 LD R11,Y+
00BE FDE2 SBRC R30,2
00BF 9508 RET
00C0 90C9 LD R12,Y+
00C1 90D9 LD R13,Y+
00C2 FDE3 SBRC R30,3
00C3 9508 RET
00C4 90E9 LD R14,Y+
00C5 90F9 LD R15,Y+
00C6 9508 RET
_putchar:
00C7 940E00B0 CALL push_gset1
00C9 2F40 MOV R20,R16
00CA 90200074 LDS R2,_textmode
00CC 90300075 LDS R3,_textmode+1
00CE 2022 TST R2
00CF F411 BNE 0x00D2
00D0 2033 TST R3
00D1 F021 BEQ 0x00D6
00D2 304A CPI R20,0xA
00D3 F411 BNE 0x00D6
00D4 E00D LDI R16,0xD
00D5 DFF1 RCALL _putchar
00D6 9B5D SBIS 0x0B,5
00D7 CFFE RJMP 0x00D6
00D8 B94C OUT 0x0C,R20
00D9 2F04 MOV R16,R20
00DA 2711 CLR R17
00DB 940E00B3 CALL pop_gset1
00DD 9508 RET
_puts:
00DE 940E00AE CALL push_gset2
00E0 2F60 MOV R22,R16
00E1 2F71 MOV R23,R17
00E2 2744 CLR R20
00E3 2755 CLR R21
00E4 C009 RJMP 0x00EE
00E5 2FE6 MOV R30,R22
00E6 2FF7 MOV R31,R23
00E7 8100 LDD R16,Z+0
00E8 940E00C7 CALL _putchar
00EA 5F4F SUBI R20,0xFF
00EB 4F5F SBCI R21,0xFF
00EC 5F6F SUBI R22,0xFF
00ED 4F7F SBCI R23,0xFF
00EE 2FE6 MOV R30,R22
00EF 2FF7 MOV R31,R23
00F0 8020 LDD R2,Z+0
00F1 2022 TST R2
00F2 F791 BNE 0x00E5
00F3 E00A LDI R16,0xA
00F4 940E00C7 CALL _putchar
00F6 E001 LDI R16,1
00F7 E010 LDI R17,0
00F8 940E00A5 CALL pop_gset2
00FA 9508 RET
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