mk64/asm/os/osWritebackDCache.s

40 lines
842 B
ArmAsm

.set noreorder # don't insert nops after branches
.set gp=64
.include "macros.inc"
.section .text, "ax"
glabel osWritebackDCache
blez $a1, .osWritebackDCacheReturn
nop
li $t3, DCACHE_SIZE
bgeu $a1, $t3, .L80324E40
nop
move $t0, $a0
addu $t1, $a0, $a1
bgeu $t0, $t1, .osWritebackDCacheReturn
nop
andi $t2, $t0, DCACHE_LINEMASK
addiu $t1, $t1, -DCACHE_LINESIZE
subu $t0, $t0, $t2
.L80324E28:
cache C_HWB|CACH_PD, ($t0)
bltu $t0, $t1, .L80324E28
addiu $t0, $t0, 0x10
.osWritebackDCacheReturn:
jr $ra
nop
.L80324E40:
li $t0, KUSIZE
addu $t1, $t0, $t3
addiu $t1, $t1, -DCACHE_LINESIZE
.L80324E4C:
cache C_IWBINV|CACH_PD, ($t0)
bltu $t0, $t1, .L80324E4C
addiu $t0, DCACHE_LINESIZE # addiu $t0, $t0, 0x10
jr $ra
nop