serial.lst

掏美元培训得来的某外国公司推广keil ARM 和LPC2100的源码。

ARM COMPILER V2.42,  Serial                                                                20/12/05  21:08:43  PAGE 1   


ARM COMPILER V2.42, COMPILATION OF MODULE Serial
OBJECT MODULE PLACED IN Serial.OBJ
COMPILER INVOKED BY: d:\Keil\ARM\BIN\CA.exe Serial.c THUMB OPTIMIZE(7,SPEED) DEBUG PRINT(.\PHY\SERIAL.LST) TABS(4) 

stmt  level    source

    1          /******************************************************************************/
    2          /*  This file is part of the uVision/ARM development tools                    */
    3          /*  Copyright KEIL ELEKTRONIK GmbH 2002-2004                                  */
    4          /******************************************************************************/
    5          /*                                                                            */
    6          /*  SERIAL.C:  Low Level Serial Routines                                      */
    7          /*                                                                            */
    8          /******************************************************************************/
    9          
   10          #include <LPC22xx.H>                     /* LPC21xx definitions               */
   11          
   12          #define CR     0x0D
   13          
   14          
   15          void init_serial (void)  {               /* Initialize Serial Interface       */
   16   1        PINSEL0 = 0x00050000;                  /* Enable RxD1 and TxD1              */
   17   1        U1LCR = 0x83;                          /* 8 bits, no Parity, 1 Stop bit     */
   18   1        U1DLL = 97;                            /* 9600 Baud Rate @ 15MHz VPB Clock  */
   19   1        U1LCR = 0x03;                          /* DLAB = 0                          */
   20   1      }
   21          
   22          
   23          int putchar (int ch)  {                  /* Write character to Serial Port    */
   24   1      
   25   1        if (ch == '\n')  {
   26   2          while (!(U1LSR & 0x20));
   27   2          U1THR = CR;                          /* output CR */
   28   2        }
   29   1        while (!(U1LSR & 0x20));
   30   1        return (U1THR = ch);
   31   1      }
   32          
   33          
   34          int getchar (void)  {                    /* Read character from Serial Port   */
   35   1      
   36   1        while (!(U1LSR & 0x01));
   37   1      
   38   1        return (U1RBR);
   39   1      }
ARM COMPILER V2.42,  Serial                                                                20/12/05  21:08:43  PAGE 2   

ASSEMBLY LISTING OF GENERATED OBJECT CODE



*** PUBLICS:
 PUBLIC         init_serial?T
 PUBLIC         putchar?T
 PUBLIC         getchar?T



*** CODE SEGMENT '?PR?init_serial?T?Serial':
   16:   PINSEL0 = 0x00050000;                  /* Enable RxD1 and TxD1              */
 00000000  4800      LDR         R1,=0x50000
 00000002  4800      LDR         R0,=0xE002C000
 00000004  6001      STR         R1,[R0,#0x0]
   17:   U1LCR = 0x83;                          /* 8 bits, no Parity, 1 Stop bit     */
 00000006  2183      MOV         R1,#0x83
 00000008  4800      LDR         R0,=0xE001000C
 0000000A  7001      STRB        R1,[R0,#0x0]
   18:   U1DLL = 97;                            /* 9600 Baud Rate @ 15MHz VPB Clock  */
 0000000C  2161      MOV         R1,#0x61
 0000000E  4800      LDR         R0,=0xE0010000
 00000010  7001      STRB        R1,[R0,#0x0]
   19:   U1LCR = 0x03;                          /* DLAB = 0                          */
 00000012  2103      MOV         R1,#0x3
 00000014  4800      LDR         R0,=0xE001000C
 00000016  7001      STRB        R1,[R0,#0x0]
   20: }
 00000018  4770      BX          R14
 0000001A          ENDP ; 'init_serial?T'


*** CODE SEGMENT '?PR?putchar?T?Serial':
   23: int putchar (int ch)  {                  /* Write character to Serial Port    */
 00000000  1C01      MOV         R1,R0 ; ch
 00000002  ---- Variable 'ch' assigned to Register 'R1' ----
   25:   if (ch == '\n')  {
 00000002  1C08      MOV         R0,R1 ; ch
 00000004  280A      CMP         R0,#0xA ; ch
 00000006  D107      BNE         L_9  ; T=0x00000018
   26:     while (!(U1LSR & 0x20));
 00000008          L_2:
 00000008  4800      LDR         R0,=0xE0010014
 0000000A  7800      LDRB        R0,[R0,#0x0]
 0000000C  2220      MOV         R2,#0x20
 0000000E  4210      TST         R0,R2
 00000010  D0FA      BEQ         L_2  ; T=0x00000008
   27:     U1THR = CR;                          /* output CR */
 00000012  220D      MOV         R2,#0xD
 00000014  4800      LDR         R0,=0xE0010000
 00000016  7002      STRB        R2,[R0,#0x0]
   29:   while (!(U1LSR & 0x20));
 00000018          L_9:
 00000018          L_6:
 00000018  4800      LDR         R0,=0xE0010014
 0000001A  7800      LDRB        R0,[R0,#0x0]
 0000001C  2220      MOV         R2,#0x20
 0000001E  4210      TST         R0,R2
 00000020  D0FA      BEQ         L_6  ; T=0x00000018
   30:   return (U1THR = ch);
 00000022  1C08      MOV         R0,R1 ; ch
 00000024  0600      LSL         R0,R0,#0x18 ; ch
 00000026  0E00      LSR         R0,R0,#0x18
 00000028  4800      LDR         R1,=0xE0010000
 0000002A  7008      STRB        R0,[R1,#0x0]
 0000002C  0600      LSL         R0,R0,#0x18
 0000002E  0E00      LSR         R0,R0,#0x18
   31: }
 00000030  4770      BX          R14
 00000032          ENDP ; 'putchar?T'

ARM COMPILER V2.42,  Serial                                                                20/12/05  21:08:43  PAGE 3   


*** CODE SEGMENT '?PR?getchar?T?Serial':
   36:   while (!(U1LSR & 0x01));
 00000000          L_11:
 00000000  4800      LDR         R0,=0xE0010014
 00000002  7800      LDRB        R0,[R0,#0x0]
 00000004  2101      MOV         R1,#0x1
 00000006  4208      TST         R0,R1
 00000008  D0FA      BEQ         L_11  ; T=0x00000000
   38:   return (U1RBR);
 0000000A  4800      LDR         R0,=0xE0010000
 0000000C  7800      LDRB        R0,[R0,#0x0]
   39: }
 0000000E  4770      BX          R14
 00000010          ENDP ; 'getchar?T'



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


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