#include <asm.h>
#
# r3 Channel
CARDCheck:
mflr %r0
cmpwi %r3, 0
beq CARDPresent
li %r3, -3
b end
CARDPresent:
li %r3, 0
end:
lis %r4, 0xC000
stw %r3, 0x2F94(%r4)
mtlr %r0
blr