ex2_start.s

来自「Startup Example 1 for Arm GCC」· S 代码 · 共 21 行

/* ex2_start.s */
	.text
	.arm
	.global main
	.global _start
_start:
	/* Vectors (8 total) */
	ldr pc, main_addr   /* reset */
	ldr pc, loop_addr   /* undefined instruction */
	ldr pc, loop_addr   /* software interrupt */
	ldr pc, loop_addr   /* prefetch abort */
	ldr pc, loop_addr   /* data abort */
	nop                 /* reserved for the bootldr checksum */
	ldr pc, loop_addr   /* IRQ */
	ldr pc, loop_addr   /* FIQ */

loop_addr:	.word   loop
main_addr:	.word   main
loop:   b   loop
	.end