#include "PR/R4300.h"
#include "sys/asm.h"
#include "sys/regdef.h"

.text
LEAF(osInvalICache)
	blez a1, 2f

	li t3, ICACHE_SIZE
	bgeu a1, t3, 3f

	move t0, a0
	addu t1, a0, a1
	bgeu t0, t1, 2f

	addiu t1, t1, -ICACHE_LINESIZE
	andi t2, t0, ICACHE_LINEMASK
	subu t0, t0, t2
1:
	CACHE((C_HINV|CACH_PI), (t0))
    .set noreorder
	bltu t0, t1, 1b
	addiu t0, t0, ICACHE_LINESIZE
    .set reorder
2:
	jr ra

3:
	li t0, KUSIZE
	addu t1, t0, t3
	addiu t1, t1, -ICACHE_LINESIZE
4:
	CACHE((C_IINV|CACH_PI), (t0))
    .set noreorder
	bltu t0, t1, 4b
	addiu t0, t0, ICACHE_LINESIZE
    .set reorder

	jr ra

END(osInvalICache)