71x_vect.s

来自「基于Arm Developer suite 1.2开发」· S 代码 · 共 38 行

			AREA	Vect, CODE, READONLY

			IMPORT  Reset_Handler
;			IMPORT	IRQ_Handler
			IMPORT	FIQ_Handler

			B       Reset_Handler	;Reset
			B       .
			B       .
			B       .
			B       .
			NOP								; Reserved vector
			B       .;IRQ_Handler
			B       FIQ_Handler

			IMPORT	|Image$$RW$$Limit|
Reset
			MOV		r0, #0xA0000000
			LDRH	r1, [r0, #0x50]
			TST		r1, #0x0002
			BNE		Reset_Handler
			MOV		r2, #0x00000000
			MOV		r3, #0x20000000
			LDR		r4, =|Image$$RW$$Limit|
0
			LDMIA	r2!, {r5-r12}
			STMIA	r3!, {r5-r12}
			CMP		r2, r4
			BLO		%B0

			ORR		r1, r1, #0x0002
			STRH	r1, [r0, #0x50]
			B		Reset_Handler

			LTORG

			END