added INCRP macro - now does 32-bit increments of RP for speed
added ADDRP macro to return RP incremented by n (CGT)
changed globals to static (didn't help speed much - thought it might)
moved around some functions
changed shift instructions to create bitmask at runtime (faster)
manually inlined mathexception (but used inline keyword in later revs)
huge hunk of 32I instructions
generalized SETCC and LCXX macros so I-mode can use them
fixed bug in LDC where A-reg was getting trashed at end of string
made macros for many instructions so I-mode can use them
forgot to close the boot file