init.s

来自「JTAG编程的全套资料」· S 代码 · 共 47 行

;**************************************************************
;	
;	This an simple implementation of  bootloader for S3C4510B
;	Hope it is useful to you.
;	
;	Enjoy it! 
;
;**************************************************************

 
	AREA    Init, CODE, READONLY
	GET snds.s
	 
	ENTRY
	 

	
	CODE32	
	

	LDR r0, = ARM7_IOPMOD
	LDR r1, =0xff
	STR r1, [r0]			
	LDR r0, =ARM7_IOPDATA
	
	LDR r1, =0x7E
	LDR r2, =0x7D
	LDR r3, =0x7B
	LDR r4, =0x77 
	LDR r5, =0xEE
	LDR r6, =0xDE
	LDR r7, =0xBE
	
	STR r1, [r0]	
	STR r2, [r0]
	STR r3, [r0]
	STR r4, [r0]
	STR r5, [r0]	
	STR r6, [r0]
	STR r7, [r0]		
	
LOOP
	B LOOP;	
	
        END