* Makefile.am (SUBDIRLIST): Add harddrv.

	* Makefile.am (SUBDIRLIST): Add harddrv.
	(SUBLIBLIST): Add harddrv/libharddrv.la.
	(INCLUDES): Add harddrv.
	* bochs.h: Include harddrv.h header.
	* components.cxx: Add hw-disk-harddrive type.
	* configure.in (AC_OUTPUT): Add harddrv/Makefile.
	* cmos/sid-cmos-wrapper.cc: Remove cmos_irq_number,
	use_host_time and start_time attributes.
	Add base_memory_in_k, extended_memory_in_k attributes.
	Remove get_time function.
	* cpu/cpu.cc: Change mem->read_physical calls to access_linear
	calls.
	* cpu/cpu.h: Change _16_bit_base_reg references to
	a_16_bit_base_reg, to prevent compiler warnings on some hosts.
	* cpu/init.cc: Likewise.
	* cpu/proc_ctrl.cc: Add RDTSC implementation.
	* floppy/sid-floppy-wrapper.cc: Split up io memory range so that
	3f6 is left for hard drive.
	Add command-delay attribute.
	* keyboard/keyboard.cc: Handle reads from, and writes to port
	0x92.
	* keyboard/sid-keyboard-wrapper.cc: Add serial-delay attribute.
	* pic/sid-pic-wrapper.cc: Change implementation; provide one pin
	per irq, rather than one irq-number pin.
	* vga/sid-vga-wrapper.cc: Fix cmos writing bug.
	* vga/vga.cc: Add BX_SUPPORT_SID ifdefs, so that diffs between
	this file and the bochs version are clearer.