> What ADD instructions do I have? > What exactly does TROT do? > What instructions does this particular facility contain? > What does the opcode 0FE0 do?
The first question isn't readily addressed by the current form of Principles of Operation, but the last three are. - To see exactly what TROT does, refer to the instruction description in Chapter 7. (If you don't know it's in chapter 7, use the list of instructions by mnemonic in Appendix B.) - To see which instructions a facility contains, refer to the description of the facility in Chapter 1. - To see what opcode 0FE0 does, use the list of instructions by opcode in Appendix B to link to the instruction description. I won't pretend that the existing format can't be improved, but familiarity with the existing layout goes a long way to addressing many perceived deficiencies. - mb
