(spec_reg_operand): Validate mode and know that some regs support
MODE_PARTIAL_INT and some MODE_INT.
(call_operand, reload_memory_operand, a29k_get_reloaded_address)
 New functions.
(in_operand): Allow constants with MODE_PARTIAL_INT.
(out_operand): Allow special registers with any mode.
Any MEM a word or wider is valid.
(extend_operator): Deleted.
(secondary_reload_class): A pseudo is the same as memory; we need
BP_REGS for multi-word memory or for bytes and halfword if -mndw.
(print_operand): Delete %X; add %m.
(print_operand, case 'F'): Check for SYMBOL_REF.

From-SVN: r2443