Next-gen CPU

[rootatkali]

Refactor the CPU package - see design page

• [x] Create new execution framework
• [x] Migrate existing opcodes and interrupts
• [x] Enable NgCpu as a feature flag (for beta testing)
• [ ] After testing complete - remove old CPU implementations
• [ ] Remove Ng prefix from new classes

[rootatkali]

Opcodes migration:

• [x] 0x00 - 0x0F
• [x] 0x10 - 0x1F
• [x] 0x20 - 0x2F
• [x] 0x30 - 0x3F
• [x] 0x40 - 0x4F
• [x] 0x50 - 0x5F
• [x] 0x60 - 0x6F
• [x] 0x70 - 0x7F
• [x] 0x80 - 0x8F
• [x] 0x90 - 0x9F
• [x] 0xA0 - 0xAF
• [x] 0xB0 - 0xBF
• [x] 0xC0 - 0xCF
• [x] Split utils into semantic classes
• [x] 0xD0 - 0xDF
• [x] 0xE0 - 0xEF
• [x] 0xF0 - 0xFF

[rootatkali]

The change (in rootatkali/corewars8086) has a non-zero but (in my opinion) insignificant effect on the results. Comparison file

Edit: The tests were ran incorrectly.