diosmios/asm/DVDSeekAbsAsyncPrio.S

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#include <asm.h>
# issue read command
#
# r3 dvdstruct
# r4 off
# r5 cb
# r6 prio
DVDSeekAbsAsyncPrio:
stwu %sp, -0x10(%sp)
mflr %r0
stw %r0, 8(%sp)
#update dvdstruct
li %r0, 0
stw %r0, 0x00(%r3)
stw %r0, 0x04(%r3)
stw %r0, 0x1C(%r3)
li %r0, 2
stw %r0, 0x08(%r3)
li %r0, 0
stw %r0, 0x0C(%r3)
#off
stw %r4, 0x10(%r3)
#cb
stw %r5, 0x28(%r3)
cmpwi %r5, 0
beq skip_cb
mtctr %r5
mr %r4, %r3
li %r3, 0
bctrl
skip_cb:
li %r3, 1
lwz %r0, 8(%sp)
mtlr %r0
addi %sp, %sp, 0x10
blr