88 lines
1.2 KiB
ArmAsm
88 lines
1.2 KiB
ArmAsm
|
#include <asm.h>
|
||
|
|
|
||
|
|
#
|
||
|
|
# r3 chan
|
||
|
|
# r4 old
|
||
|
|
# r5 new
|
||
|
|
# r6 cb
|
||
|
|
|
||
|
|
CARDRename:
|
||
|
|
|
||
|
|
mflr %r8
|
||
|
|
|
||
|
|
cmpwi %r3, 0
|
||
|
|
bne NoCard
|
||
|
|
|
||
|
|
#send cmd to DM
|
||
|
|
|
||
|
|
mr %r12, %r6
|
||
|
|
|
||
|
|
li %r0, 0
|
||
|
|
lis %r7, 0xC000
|
||
|
|
addi %r7, %r7, 0x2F60
|
||
|
|
#IPC area
|
||
|
|
dcbi %r0, %r7
|
||
|
|
addi %r7, %r7, 0x20
|
||
|
|
dcbi %r0, %r7
|
||
|
|
|
||
|
|
|
||
|
|
#cache workaround for the filename
|
||
|
|
li %r3, 8
|
||
|
|
mtctr %r3
|
||
|
|
lis %r3, 0xC000
|
||
|
|
invalidloopA:
|
||
|
|
lwz %r0, 0(%r4)
|
||
|
|
stw %r0, 0x17C0(%r3)
|
||
|
|
addi %r4, %r4, 4
|
||
|
|
addi %r3, %r3, 4
|
||
|
|
bdnz invalidloopA
|
||
|
|
|
||
|
|
#cache workaround for the filename
|
||
|
|
li %r3, 8
|
||
|
|
mtctr %r3
|
||
|
|
lis %r3, 0xC000
|
||
|
|
invalidloopB:
|
||
|
|
lwz %r0, 0(%r5)
|
||
|
|
stw %r0, 0x17E0(%r3)
|
||
|
|
addi %r5, %r5, 4
|
||
|
|
addi %r3, %r3, 4
|
||
|
|
bdnz invalidloopB
|
||
|
|
|
||
|
|
lis %r7, 0xC000
|
||
|
|
|
||
|
|
lis %r0, 0xCB00
|
||
|
|
stw %r0, 0x2F60(%r7)
|
||
|
|
|
||
|
|
li %r0, 3
|
||
|
|
stw %r0, 0x2F78(%r7)
|
||
|
|
|
||
|
|
ready_loop:
|
||
|
|
lwz %r0, 0x2F78(%r7)
|
||
|
|
cmpwi %r0, 3
|
||
|
|
beq ready_loop
|
||
|
|
|
||
|
|
wait_loop:
|
||
|
|
lwz %r0, 0x2F9C(%r7)
|
||
|
|
andi. %r0, %r0, 0x14
|
||
|
|
cmpwi %r0, 0
|
||
|
|
beq wait_loop
|
||
|
|
|
||
|
|
cmpwi %r12, 0
|
||
|
|
beq skip_cb
|
||
|
|
mtlr %r12
|
||
|
|
li %r3, 0
|
||
|
|
lwz %r4, 0x2F94(%r7)
|
||
|
|
blrl
|
||
|
|
|
||
|
|
skip_cb:
|
||
|
|
lwz %r3, 0x2F94(%r7)
|
||
|
|
b end
|
||
|
|
|
||
|
|
NoCard:
|
||
|
|
li %r3, -3
|
||
|
|
end:
|
||
|
|
mr %r4, %r3
|
||
|
|
|
||
|
|
mtlr %r8
|
||
|
|
blr
|