- The Group Decode ROM: The 8086 processor’s first step of instruction decoding (righto.com)
A key component of any processor is instruction decoding: analyzing a numeric opcode and figuring out what actions need to be taken. The Intel 8086 processor (1978) has a complex instruction set, making instruction decoding a challenge. The first step in decoding an 8086 instruction is something called the Group Decode ROM, which categorizes instructions into about 35 types that control how the instruction is decoded and executed. For instance, the Group Decode ROM determines if an instruction is executed in hardware or in microcode. It also indicates how the instruction is structured: if the instruction has a bit specifying a byte or word operation, if the instruction has a byte that specifies the addressing mode, and so forth.
- Freedom Caucus (Wikipedia)
The Freedom Caucus, also known as the House Freedom Caucus, is a congressional caucus consisting of Republican members of the United States House of Representatives. It is generally considered to be the most conservative and furthest-right bloc within the chamber. The caucus was formed in January 2015 by a group of conservatives and Tea Party movement members, with the aim of pushing the Republican leadership to the right. Its first chairman, Jim Jordan, described the caucus as a “smaller, more cohesive, more agile and more active” group of conservative representatives. Members of the Freedom Caucus are typically considered a part of the MAGA movement and loyalists to Donald Trump.