Network, Computer and Programming Resources

A - Instruction group

IA-64 architecture instructions are organized in instruction groups. Each instruction group contains one or more statically contiguous instructions that execute in parallel. An instruction group must contain at least one instruction; there is no upper limit on the number of instructions in an instruction group. An instruction group is terminated statically by a stop, and dynamically by taken branches. Stops are represented by a double semi-colon (;;). You can explicitly define stops. Stops immediately follow an instruction, or appear on a separate line. They can be inserted between two instructions on the same line, as a semi-colon (;) is used to separate two instructions.