GXemul Code2

20070131 Adding a -k command line option to set the size of the dyntrans
cache, and a -B command line option to disable native code
generation, even if GXemul was compiled with support for
native code generation for the specific host CPU architecture.
Adding detection of amd64/x86_64 hosts in the configure script,
for doing initial experiments (again :-) with native code
generation.

Moving out the MIPS multi_lw and _sw instruction combinations so that they are auto-generated at compile time instead.

CPC700 should return pci_data, so that cards can be added.

Fixing MACE ISA interrupts (SGI IP32 emulation). Both NetBSD/sgimips' and OpenBSD/sgi's ramdisk kernels can now be interacted with again.

Converting the CPC700 controller (PCI and interrupt controller for PM/PPC) to the new interrupt system.

Minor SH4 updates.

Better text.

Adding NetBSD/dreamcast LiveCD screenshots.

SH4 fixes (adding a PADDR invalidation in the ITLB replacement code in memory_sh.c); the NetBSD/dreamcast LiveCD now runs all the way to the login prompt, and can be interacted with :-)

Moving of_data into the md struct.