Stack machineIn computer science, computer engineering and programming language implementations, a stack machine is a computer processor or a process virtual machine in which the primary interaction is moving short-lived temporary values to and from a push-down stack. In the case of a hardware processor, a hardware stack is used. The use of a stack significantly reduces the required number of processor registers.
Reduced instruction set computerIn electronics and computer science, a reduced instruction set computer (RISC, pronounced "risk") is a computer architecture designed to simplify the individual instructions given to the computer to accomplish tasks. Compared to the instructions given to a complex instruction set computer (CISC), a RISC computer might require more machine code in order to accomplish a task because the individual instructions perform simpler operations.
Charles H. MooreCharles Havice Moore II (born 9 September 1938), better known as Chuck Moore, is an American computer engineer and programmer who invented the Forth programming language in 1968. He cofounded FORTH, Inc., with Elizabeth Rather in 1971 and continued to evolve the language with an emphasis on simplicity. Beginning in the early 1980s, Moore shifted focus to designing stack machines in hardware conjoined with Forth-like languages to run on them.
Java virtual machineA Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages, referred to as JVM languages, that are also compiled to Java bytecode. The JVM is detailed by a specification that formally describes what is required in a JVM implementation.
Minimal instruction set computerMinimal instruction set computer (MISC) is a central processing unit (CPU) architecture, usually in the form of a microprocessor, with a very small number of basic operations and corresponding opcodes, together forming an instruction set. Such sets are commonly stack-based rather than register-based to reduce the size of operand specifiers. Such a stack machine architecture is inherently simpler since all instructions operate on the top-most stack entries.
Instruction set architectureAn instruction set architecture (ISA) is an abstract model that defines the programmable interface of the CPU of a computer, defining how software interacts with hardware. A device (i.e. CPU) that interprets instructions described by an ISA is an implementation of that ISA. Generally, the same ISA is used for a family of related CPU devices.Forth (programming language)Forth is a stack-oriented programming language and interactive integrated development environment designed by Charles H. "Chuck" Moore and first used by other programmers in 1970. Although not an acronym, the language's name in its early years was often spelled in all capital letters as FORTH.
64-bit computingIn computer architecture, 64-bitintegers, memory addresses, or other data units are those that are 64 bits wide. Also, 64-bit central processing units (CPU) and arithmetic logic units (ALU) are those that are based on processor registers, address buses, or data buses of that size. A computer that uses such a processor is a 64-bit computer. From the software perspective, 64-bit computing means the use of machine code with 64-bit virtual memory addresses.Addressing modeAddressing modes are an aspect of the instruction set architecture in most central processing unit (CPU) designs. Addressing modes define how the machine languageinstructions in that architecture identify the operand(s) of each instruction. An addressing mode specifies how to calculate the effective memory address of an operand by using information held in registers and/or constants contained within a machine instruction or elsewhere.
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MicrocodeIn computer architecture, microcode is a layer of low-level control data or instructions used to implement a processor's instruction set architecture or internal control sequences. It consists of hardware-level operations that carry out higher-level machine code instructions or direct internal sequencing in many digital components.AT&T HobbitThe AT&T Hobbit is a microprocessor design developed by AT&T Corporation in the early 1990s. It was based on the company's CRISP (C-language Reduced Instruction Set Processor) design resembling the classic RISC pipeline, and which in turn grew out of the C Machine design by Bell Labs of the late 1980s. All were optimized for running code compiled from the C programming language. The design concentrates on fast instruction decoding, indexed array access, and procedure calls.*As an Amazon Associate I earn from qualifying purchases.