Re: [wip/cagney_regbuf-20020515-branch] Introduce regcache_move()

[Richard Earnshaw <rearnsha@arm.com>]

rearnsha@arm.com said:
> Write_register_bytes will then overwrite the raw value in the cache
> without any regard to the masking operations that should be occuring
> when  updating R15; the CPSR bits in the PC are just clobbered and we
> are left  with a broken value in the R15 register. 

Actually, this isn't a strict description of what happens (though the 
result is pretty much the same).  What really happens is that 
write_register_byte will then call write_register_gen for each register 
that returns a REGISTER_BYTE() address in the same range.  The result is 
that write_register_bytes calls

	write_register_gen(PC, newval)
	write_register_gen(CPSR, newval)

which is still equally bogus.

R.