prj1.lst

AVR 单片机

__start:
__text_start:
      2A E5CF      LDI	R28,0x5F
      2B E0D4      LDI	R29,4
      2C BFCD      OUT	0x3D,R28
      2D BFDE      OUT	0x3E,R29
      2E 51C0      SUBI	R28,0x10
      2F 40D0      SBCI	R29,0
      30 EA0A      LDI	R16,0xAA
      31 8308      STD	Y+0,R16
      32 2400      CLR	R0
      33 E6E0      LDI	R30,0x60
      34 E0F0      LDI	R31,0
      35 E010      LDI	R17,0
      36 36E0      CPI	R30,0x60
      37 07F1      CPC	R31,R17
      38 F011      BEQ	0x003B
      39 9201      ST	R0,Z+
      3A CFFB      RJMP	0x0036
      3B 8300      STD	Z+0,R16
      3C E5E4      LDI	R30,0x54
      3D E0F0      LDI	R31,0
      3E E6A0      LDI	R26,0x60
      3F E0B0      LDI	R27,0
      40 E010      LDI	R17,0
      41 35E4      CPI	R30,0x54
      42 07F1      CPC	R31,R17
      43 F021      BEQ	0x0048
      44 95C8      LPM
      45 9631      ADIW	R30,1
      46 920D      ST	R0,X+
      47 CFF9      RJMP	0x0041
      48 940E 0052 CALL	_main
_exit:
      4A CFFF      RJMP	_exit
FILE: E:\__test\_Delay_nus_Count_uint_n--_ok\Main.c
(0001) #include <iom16v.h>    
(0002) #include <macros.h> 
(0003) 
(0004) //通过计数的N us延时函数
(0005) //－－延时计算：t_delay = 4 * nt + 12t
(0006) //－－延时范围：n>=0, n<=255 (即12t - 1032t )  //8M时,是1.5us - 129us
(0007) void Delay_nus_Count(unsigned int n)    //－－0.5us左右 
(0008) { 
_Delay_nus_Count:
  n                    --> R16
      4B C002      RJMP	0x004E
(0009)    while(n) 
(0010)       n--;    
      4C 5001      SUBI	R16,1
      4D 4010      SBCI	R17,0
      4E 3000      CPI	R16,0
      4F 0701      CPC	R16,R17
      50 F7D9      BNE	0x004C
      51 9508      RET
(0011) } 
(0012) 
(0013) void main(void)
(0014) {
(0015)    Delay_nus_Count(10);
FILE: <library>
_main:
      52 E00A      LDI	R16,0xA
      53 E010      LDI	R17,0
      54 DFF6      RCALL	_Delay_nus_Count
      55 9508      RET