Ran this test on my Wii, with AC0.M = 0x0004 and AC1.M = 0x1234
Result: AC1.M = 0x2340
This opcode is NOT andc'ls. It left-shifts ACC1 by value in ACC0.
git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@3796 8ced0084-cf51-0410-be5f-012b33b47a6e