On Fri, Mar 13, 2009 at 6:06 PM, Paolo Bonzini <bonz...@gnu.org> wrote: > > So, I'd still need the information for arm and m68k, because that > information is about the bitfield instructions.
For ARM, shifts by immediate use a 5-bit constant, shifts by register use the lower 8 bits of the register. For ARMv6T2/ARMv7, bitfield instructions: - BFC, BFI specify an immediate 5-bit starting bit position and an immediate 5-bit ending bit position - SBFX, UBFX specify an immediate 5-bit starting bit position and an immediate 5-bit width. Laurent