gistfile1.txt

_start:

	/* Zero the BSS */
	LD_ADDR(r10, _start_bss)
	LD_ADDR(r11, _end_bss)
	subi	r10,	r10,	4
	subi	r11,	r11,	4
	LD_CONST(r6, KERNEL_OFFSET)
	sub	r10,	r10,	r6
	sub	r11,	r11,	r6
	li	r12,	0
1:	cmp	0,	r10,	r11
	beq	2f
	stwu	r12,	4(r10)
	b	1b
2:

	LD_LABEL(r10, __real_mode_jump)		/* Load address of real-mode init */
	LD_CONST(r12, MSR_REAL_MODE)		/* Get the real mode MSR setting and jump to 64-bit mode */
	sub	r10,	r10,	r6

	mtsrr0	r10				/* Setup jump address */
	mtsrr1	r12				/* Enable read mode */
	rfid					/* Context Changing Jump */