rename instructions

[vadixidav]

When the architecture was first created, the only intended way to interface with the DCs was by reading and writing directly from them. Once immediate instructions were created to pull from dc0 specifically, using it as a source for immediate values, the architecture now has a confusing naming convention regarding what immediate means. Many of the instructions should be renamed to reflect newer design paradigms.

All instructions which read a value from dc0 specifically and cannot be used on other DCs should be considered "immediate" instructions. Those should contain the letter 'i' in their name.

All instructions which read a value from any DC should continue to be called by their name followed by a #, indicating that the # can be replaced with 0-3 for the DC being used.

Other names (including jumps/branching) should be cleaned up according to this convention and standardized.

List:

• Immediate instructions end with "i"
• DC instructions end with "#"
• Interrupt instructions begin with "int"