* regcache.h (register_offset_hack): Declare.
(regcache_cooked_read_using_offset_hack): Declare.
(regcache_cooked_write_using_offset_hack): Declare.
* regcache.c (register_offset_hack): New function.
(regcache_cooked_read_using_offset_hack): New function.
(regcache_cooked_write_using_offset_hack): New function.
(regcache_dump): Check that the registers, according to their
offset, are packed hard against each other.
(cooked_xfer_using_offset_hack): New function.
* regcache.c (struct regcache_descr): Add field register_type.
(init_legacy_regcache_descr): Pass a pre-allocated regcache_descr
in as a parameter
(init_regcache_descr): Initialize register_type. Pass the descr
to init_legacy_regcache_descr. Use register_type instead of
REGISTER_VIRTUAL_TYPE.
(register_type): New function.
(regcache_dump): Replace REGISTER_VIRTUAL_TYPE with register_type.
* regcache.h (register_type): Declare.
* regcache.c (max_register_size): New function.
(init_legacy_regcache_descr): Ensure that max_register_size is
large enough for REGISTER_VIRTUAL_SIZE.
* regcache.h (max_register_size): Declare.
* i386-tdep.c (i386_register_name): Handle mmx registers.
(mmx_regnum_p): New function.
(i386_mmx_names): New array.
(mmx_num_regs): New variable.
(i386_pseudo_register_read): New function.
(i386_pseudo_register_write): New function.
(mmx_regnum_to_fp_regnum): New function. Code from Fernando Nasser.
* regcache.c (regcache_raw_read_unsigned): New function.
(regcache_raw_read_signed): New function.
* regcache.h (regcache_raw_read_unsigned): Declare.
(regcache_raw_read_signed): Declare.
deprecated_grub_regcache_for_registers.
* values.c: Include "regcache.h".
(value_being_returned): Update. Use
deprecated_grub_regcache_for_registers to extract the register
buffer address.
* value.h (value_being_returned): Change ``retbuf'' parameter to a
``struct regcache''.
* Makefile.in (values.o): Add dependency on $(regcache_h).
* inferior.h (run_stack_dummy): Change type of second parameter to
a ``struct regcache''.
* valops.c (hand_function_call): Change type of retbuf to ``struct
regcache''. Allocate using regcache_xmalloc, clean using
make_cleanup_regcache_xfree.
* infcmd.c (run_stack_dummy): Update. Use
regcache_cpu_no_passthrough instead of memcpy to copy the buffer.
* regcache.c (do_regcache_xfree): New function.
(make_cleanup_regcache_xfree): New function.
* regcache.h (make_cleanup_regcache_xfree): Declare.
