`set architecture'. Unify naming convention of functions.
(h8300_skip_prologue): Improve prologue analysis.
(h8300_push_arguments): Rewritten to more closely match GCC's
bizarre argument-passing behavior, along with the comment describing
said behavior.
* remote-hms.c (hms_regnames): Don't use NUM_REGS in definition.
* config/h8300/tm-h8300.h: Multiarch. Just keep stuff needed by
sim, remote-e7000.c, remote-hms.c and remote.c