44blib_a.s

ads下2410的测试程序

;/*********************************************************************** 
; * $Workfile:   44blib_a.s  $ 
; * $Revision: 1.1.1.1 $ 
; * $Author: meterchen $ 
; * $Date: 2003/10/19 13:27:11 $ 
; * 
; * Project:     Shenzhen-Nucleus-Grafix
; * 
; * Description: 
; *    
; *
; * Revision History: 
; * 
; *********************************************************************** 
; * 
; *  Copyright (c) 2003 CHENMENG
; * 
; *  All rights reserved 
; * 
; **********************************************************************/

	AREA |C$$code|, CODE, READONLY

	EXPORT	ChangeMemCon



;void ChangeMemCon();
ChangeMemCon
 ;   stmfd   sp!,{r4-r9}	    ;Assembler uses the high registers(r4~). 
	   
  ;  ldmia   r0,{r1-r9}
 ;   ldr	    r0,=0x01c80004  ;BANKCON0 Address
 ;   stmia   r0,{r1-r9}

  ;  ldmfd   sp!,{r4-r9}

    mov	    pc,lr
;


	EXPORT	DisableInterrupt
DisableInterrupt
;This function works only if the processor is in previliged mode.

NOINT	    EQU	0xc0

    mrs	    r0,cpsr
    orr	    r0,r0,#NOINT
    msr	    cpsr_cxsf,r0		

    mov	    pc,lr


	EXPORT	EnableInterrupt
EnableInterrupt
;This function works only if the processor is in previliged mode.

    mrs	    r0,cpsr
    bic	    r0,r0,#NOINT
    msr	    cpsr_cxsf,r0		

    mov	    pc,lr

	END