fix movc impl
fix call clobbered regs
fix ext32s
adjust alloc_order
fix qemu_ldul
replace cmp with cmp[48]
Rewrite everything into two byte opcode form
HACK: Work around ldl_p et al redefinement

We provide native unaligned load functions in bswap.h,
then override those with macros in cpu-all.h.  Duh?
correct mismatch in pointer register numbering
temp
temp