init.s

s3c4510B开发板使用Sdt2.51和JTAG接口板调试C程序样例

        AREA    Init, CODE, READONLY
		CODE32
		
		
        ENTRY

start
	MRS	r0, cpsr
	BIC	r0, r0, #0x3f
	ORR	r0, r0, #0x13
	ORR r0, r0, #0x80
	ORR r0, r0, #0x40
	MSR	cpsr_c, r0


	LDR	r2, =0x03ff4008
	MVN	r1, #0					
	STR	r1, [r2]				

	LDR	r2, =0x03ff4004
	MVN	r1, #0						
	STR	r1, [r2]					

	LDR	r0, =0x03ff0000
	LDR	r1, =0x87ffff90			
	STR	r1, [r0] 					


	LDR      r1, =0x00003009 
	LDR      r2, =0x01000060 
	LDR      r3, =0x13044060 
	mov      r4, #0x60
	mov      r5, #0x60
	mov      r6, #0x60
	mov      r7, #0x60
	LDR      r8, =0x11004380 
	mov      r9, #0
	mov      r10, #0
	mov      r11, #0
	LDR      r12, =0xce278360
	LDR      r0,  =0x03ff3010 	 			
;	STMIA	r0, {r1-r12}
 
                                    	
	LDR	sp, =0x0300000       			;设置堆栈起始地址
	MOV	fp, #0								


    IMPORT  C_Entry
	LDR	pc, =C_Entry       ;跳到C代码入口.
        END