led.lst

lpc2148上的一个可带操作系统的多任务编程模式

ARM COMPILER V2.53,  led                                                                   06/12/08  09:44:48  PAGE 1   


ARM COMPILER V2.53, COMPILATION OF MODULE led
OBJECT MODULE PLACED IN led.OBJ
COMPILER INVOKED BY: C:\Keil\ARM\BIN\CA.exe led.C ARM BROWSE DEBUG TABS(4) 

stmt  level    source

    1          #include <LPC214x.H>                       /* LPC214x definitions  */
    2          
    3          const unsigned int  LED=(1<<24);          //P1.24控制LED,低电平点亮
    4          const unsigned int  LCD_Light=(1<<25);
    5          
    6          /******长延时********/
    7          void DelayNS(unsigned int  dly )
    8          {
    9   1          unsigned int  i;
   10   1          for(;dly>0;dly--)
   11   1              for(i=0;i<10000;i++);
   12   1      }
   13          
   14          
   15          int main (void)
   16          {
   17   1          
   18   1          PINSEL2=PINSEL2&(~0x08);
   19   1          IO1DIR=LED;
   20   1      
   21   1          
   22   1          while(1)
   23   1          {
   24   2      
   25   2                  IO1SET=LED;
   26   2                  DelayNS(100);
   27   2                  IO1CLR=LED;
   28   2                  DelayNS(100);
   29   2      
   30   2          }
   31   1          return 0;
   32   1      }
ARM COMPILER V2.53,  led                                                                   06/12/08  09:44:48  PAGE 2   

ASSEMBLY LISTING OF GENERATED OBJECT CODE



*** EXTERNALS:
 EXTERN NUMBER (__startup)



*** PUBLICS:
 PUBLIC         DelayNS?A
 PUBLIC         main
 PUBLIC         LED
 PUBLIC         LCD_Light



*** DATA SEGMENT '?CON?led':
 00000000          LED:
 00000000           BEGIN_INIT
 00000000  01000000  DD          0x1000000
 00000004           END_INIT
 00000004          LCD_Light:
 00000004           BEGIN_INIT
 00000004  02000000  DD          0x2000000
 00000008           END_INIT



*** CODE SEGMENT '?PR?DelayNS?A?led':
    7: void DelayNS(unsigned int  dly )
 00000000  ---- Variable 'dly' assigned to Register 'R0' ----
    8: {
 00000000            ; SCOPE-START
   10:     for(;dly>0;dly--)
 00000000  EA000006  B           L_3  ; Targ=0x20
   11:         for(i=0;i<10000;i++);
 00000004          L_10:
 00000004  E3A01000  MOV         R1,#0x0
 00000008  ---- Variable 'i' assigned to Register 'R1' ----
 00000008          L_6:
 00000008  E2811001  ADD         R1,R1,#0x0001 ; i
 0000000C  E1A02001  MOV         R2,R1 ; i
 00000010  E5103000  LDR         R3,=0x2710
 00000014  E1520003  CMP         R2,R3 ; i
 00000018  3AFFFFFA  BCC         L_6  ; Targ=0x8
 0000001C  E2400001  SUB         R0,R0,#0x0001 ; dly
 00000020          L_3:
 00000020  E1A01000  MOV         R1,R0 ; dly
 00000024  E3510000  CMP         R1,#0x0000 ; dly
 00000028  8AFFFFF5  BHI         L_10  ; Targ=0x4
 0000002C            ; SCOPE-END
   12: }
 0000002C  E12FFF1E  BX          R14
 00000030          ENDP ; 'DelayNS?A'


*** CODE SEGMENT '?PR?main?led':
   15: int main (void)
 00000000  E92D4000  STMDB       R13!,{LR}
   18:     PINSEL2=PINSEL2&(~0x08);
 00000004  E5100000  LDR         R0,=0xE002C014
 00000008  E5901000  LDR         R1,[R0,#0x0]
 0000000C  E3C11008  BIC         R1,R1,#0x0008
 00000010  E5100000  LDR         R0,=0xE002C014
 00000014  E5801000  STR         R1,[R0,#0x0]
   19:     IO1DIR=LED;
 00000018  E5100000  LDR         R0,=LED ; LED
 0000001C  E5901000  LDR         R1,[R0,#0x0] ; LED
 00000020  E5100000  LDR         R0,=0xE0028018
 00000024  E5801000  STR         R1,[R0,#0x0]
   22:     while(1)
 00000028          L_13:
   25:             IO1SET=LED;
 00000028  E5100000  LDR         R0,=LED ; LED
ARM COMPILER V2.53,  led                                                                   06/12/08  09:44:48  PAGE 3   

 0000002C  E5901000  LDR         R1,[R0,#0x0] ; LED
 00000030  E5100000  LDR         R0,=0xE0028014
 00000034  E5801000  STR         R1,[R0,#0x0]
   26:             DelayNS(100);
 00000038  E3A00064  MOV         R0,#0x64
 0000003C  EBFFFFEF  BL          DelayNS?A  ; Targ=0x0
   27:             IO1CLR=LED;
 00000040  E5100000  LDR         R0,=LED ; LED
 00000044  E5901000  LDR         R1,[R0,#0x0] ; LED
 00000048  E5100000  LDR         R0,=0xE002801C
 0000004C  E5801000  STR         R1,[R0,#0x0]
   28:             DelayNS(100);
 00000050  E3A00064  MOV         R0,#0x64
 00000054  EBFFFFE9  BL          DelayNS?A  ; Targ=0x0
   30:     }
 00000058  EAFFFFF2  B           L_13  ; Targ=0x28
 0000005C  E8BD0008  LDMIA       R13!,{R3}
 00000060  E12FFF13  BX          R3
 00000064          ENDP ; 'main'



Module Information          Static
----------------------------------
  code size            =    ------
  data size            =    ------
  const size           =         8
End of Module Information.


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