grove/asm/boot-1.s

// AArch32 mode
.section ".text.boot"
.globl _start
	.org 0x8000
_start:
	mov 	sp,	 #0x8000
	ldr 	r4, 	=__bss_start
	ldr 	r9, 	=__bss_end
	mov 	r5, 	#0
	mov 	r6, 	#0
	mov 	r7, 	#0
	mov	r8, 	#0 
	b	2f
1:	stmia	r4!, 	{r4-r8}
2:	cmp 	r4, 	r9
	blo	1b
	ldr	r4, 	=kernel_main
	blx	r3
halt:	wfe
	b halt