Every processor or processor family has its own instruction set. Instructions are patterns of bits, digits, or characters that correspond to … See more

A much more human-friendly rendition of machine language, named assembly language, uses mnemonic codes to refer to machine code … See more

On processor architectures with variable-length instruction sets (such as Intel's x86 processor family) it is, within the limits of the control-flow See more

Machine code is generally different from bytecode (also known as p-code), which is either executed by an interpreter or itself compiled into … See more

From the point of view of the CPU, machine code is stored in RAM, but is typically also kept in a set of caches for performance reasons. There may be different caches for instructions and data, depending on the architecture.
The CPU knows … See more

IBM 709x
The IBM 704, 709, 704x and 709x store one instruction in each instruction word; IBM numbers the bit from the left as S, 1, ..., 35. Most instructions have one of two formats:
Generic S,1-11 12 … See more

In some computers, the machine code of the architecture is implemented by an even more fundamental underlying layer called microcode, providing a common machine language … See more