led.lst

at91sam7s64 LED演示程序.

ARM COMPILER V2.51a,  led                                                                  16/08/06  10:23:47  PAGE 1   


ARM COMPILER V2.51a, COMPILATION OF MODULE led
OBJECT MODULE PLACED IN led.OBJ
COMPILER INVOKED BY: D:\Program Files\ARM\BIN\CA.exe led.c THUMB BROWSE DEBUG TABS(4) 

stmt  level    source

    1           /************************************************************/
    2          /*  程序说明：LED1，LDE2，LDE3依次亮灭
    3          /************************************************************/
    4          #include "at91sam7s64.h"
    5          
    6          
    7          void delay(unsigned long int i)
    8          {
    9   1          for(;i>0;i--)
   10   1          ;
   11   1      
   12   1      }
   13            void led()
   14          {
   15   1              *AT91C_PIOA_CODR=0x00000001;  //PIOA0输出低电平
   16   1              delay(6000000);
   17   1                  
   18   1              *AT91C_PIOA_SODR=0x00000001; //PIOA0输出高电平
   19   1              delay(6000000);
   20   1              *AT91C_PIOA_CODR=0x00000002;
   21   1              delay(6000000);
   22   1              *AT91C_PIOA_SODR=0x00000002;
   23   1              delay(6000000);
   24   1              
   25   1                      
   26   1               *AT91C_PIOA_CODR=0x00000004;
   27   1              delay(6000000);
   28   1              *AT91C_PIOA_SODR=0x00000004;
   29   1              delay(6000000);
   30   1              
   31   1              }
   32          
   33          
   34          void port_init()
   35          {
   36   1      *AT91C_PIOA_PER=0x0000000F;     //PIOA0-2作为I/O使用
   37   1      *AT91C_PIOA_OER=0x0000000F;     //PIOA0-2输出使能
   38   1      
   39   1      }
   40          
   41          void main(void)
   42          {
   43   1          port_init();
   44   1          
   45   1          while(1)
   46   1          {
   47   2          led();
   48   2          }
   49   1          
   50   1      
   51   1      
   52   1      
   53   1      
   54   1      }
ARM COMPILER V2.51a,  led                                                                  16/08/06  10:23:47  PAGE 2   

ASSEMBLY LISTING OF GENERATED OBJECT CODE



*** EXTERNALS:
 EXTERN NUMBER (__startup)



*** PUBLICS:
 PUBLIC         delay?T
 PUBLIC         led?T
 PUBLIC         port_init?T
 PUBLIC         main



*** CODE SEGMENT '?PR?delay?T?led':
    7: void delay(unsigned long int i)
 00000000  ---- Variable 'i' assigned to Register 'R0' ----
    9:     for(;i>0;i--)
 00000000  E000      B           L_3  ; T=0x00000004
   10:     ;
 00000002          L_1:
 00000002  3801      SUB         R0,#0x1
 00000004          L_3:
 00000004  1C01      MOV         R1,R0 ; i
 00000006  2900      CMP         R1,#0x0 ; i
 00000008  D8FB      BHI         L_1  ; T=0x00000002
   12: }
 0000000A  4770      BX          R14
 0000000C          ENDP ; 'delay?T'


*** CODE SEGMENT '?PR?led?T?led':
   13:   void led()
 00000000  B500      PUSH        {LR}
   15:         *AT91C_PIOA_CODR=0x00000001;  //PIOA0输出低电平
 00000002  2101      MOV         R1,#0x1
 00000004  4800      LDR         R0,=0xFFFFF434
 00000006  6001      STR         R1,[R0,#0x0]
   16:         delay(6000000);
 00000008  4800      LDR         R0,=0x5B8D80
 0000000A  F7FF      BL          delay?T  ; T=0x0001  (1)
 0000000C  FFF9      BL          delay?T  ; T=0x0001  (2)
   18:         *AT91C_PIOA_SODR=0x00000001; //PIOA0输出高电平
 0000000E  2101      MOV         R1,#0x1
 00000010  4800      LDR         R0,=0xFFFFF430
 00000012  6001      STR         R1,[R0,#0x0]
   19:         delay(6000000);
 00000014  4800      LDR         R0,=0x5B8D80
 00000016  F7FF      BL          delay?T  ; T=0x0001  (1)
 00000018  FFF3      BL          delay?T  ; T=0x0001  (2)
   20:         *AT91C_PIOA_CODR=0x00000002;
 0000001A  2102      MOV         R1,#0x2
 0000001C  4800      LDR         R0,=0xFFFFF434
 0000001E  6001      STR         R1,[R0,#0x0]
   21:         delay(6000000);
 00000020  4800      LDR         R0,=0x5B8D80
 00000022  F7FF      BL          delay?T  ; T=0x0001  (1)
 00000024  FFED      BL          delay?T  ; T=0x0001  (2)
   22:         *AT91C_PIOA_SODR=0x00000002;
 00000026  2102      MOV         R1,#0x2
 00000028  4800      LDR         R0,=0xFFFFF430
 0000002A  6001      STR         R1,[R0,#0x0]
   23:         delay(6000000);
 0000002C  4800      LDR         R0,=0x5B8D80
 0000002E  F7FF      BL          delay?T  ; T=0x0001  (1)
 00000030  FFE7      BL          delay?T  ; T=0x0001  (2)
   26:          *AT91C_PIOA_CODR=0x00000004;
 00000032  2104      MOV         R1,#0x4
 00000034  4800      LDR         R0,=0xFFFFF434
 00000036  6001      STR         R1,[R0,#0x0]
ARM COMPILER V2.51a,  led                                                                  16/08/06  10:23:47  PAGE 3   

   27:         delay(6000000);
 00000038  4800      LDR         R0,=0x5B8D80
 0000003A  F7FF      BL          delay?T  ; T=0x0001  (1)
 0000003C  FFE1      BL          delay?T  ; T=0x0001  (2)
   28:         *AT91C_PIOA_SODR=0x00000004;
 0000003E  2104      MOV         R1,#0x4
 00000040  4800      LDR         R0,=0xFFFFF430
 00000042  6001      STR         R1,[R0,#0x0]
   29:         delay(6000000);
 00000044  4800      LDR         R0,=0x5B8D80
 00000046  F7FF      BL          delay?T  ; T=0x0001  (1)
 00000048  FFDB      BL          delay?T  ; T=0x0001  (2)
   31:         }
 0000004A  BC08      POP         {R3}
 0000004C  4718      BX          R3
 0000004E          ENDP ; 'led?T'


*** CODE SEGMENT '?PR?port_init?T?led':
   36: *AT91C_PIOA_PER=0x0000000F;     //PIOA0-2作为I/O使用
 00000000  210F      MOV         R1,#0xF
 00000002  4800      LDR         R0,=0xFFFFF400
 00000004  6001      STR         R1,[R0,#0x0]
   37: *AT91C_PIOA_OER=0x0000000F;     //PIOA0-2输出使能
 00000006  4800      LDR         R0,=0xFFFFF410
 00000008  6001      STR         R1,[R0,#0x0]
   39: }
 0000000A  4770      BX          R14
 0000000C          ENDP ; 'port_init?T'


*** CODE SEGMENT '?PR?main?led':
   41: void main(void)
 00000000  B500      PUSH        {LR}
   43:     port_init();
 00000002  F7FF      BL          port_init?T  ; T=0x0001  (1)
 00000004  FFFD      BL          port_init?T  ; T=0x0001  (2)
   45:     while(1)
 00000006          L_8:
   47:     led();
 00000006  F7FF      BL          led?T  ; T=0x0001  (1)
 00000008  FFFB      BL          led?T  ; T=0x0001  (2)
   48:     }
 0000000A  E7FC      B           L_8  ; T=0x00000006
 0000000C  BC08      POP         {R3}
 0000000E  4718      BX          R3
 00000010          ENDP ; 'main'



Module Information          Static
----------------------------------
  code size            =    ------
  data size            =    ------
  const size           =    ------
End of Module Information.


ARM COMPILATION COMPLETE.  0 WARNING(S),  0 ERROR(S)