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Pdp-11 wiki instruction set

PDP-11 Chessprogramming wiki

pdp-11 wiki instruction set

Complex instruction set computer Simple English. The PDP-11 is a family of 16-bit minicomputers designed by DEC, in production from 1970-1990.Although the basic address space was 16 bits, most models could hold more main memory than that, although only a limited subset was visible to the program at any time.. It had 8 general purpose registers; the operand coding, which was applied regularly across essentially the entire instruction set, Category:Instruction set architectures. From Wikipedia, the free encyclopedia. Jump to navigation Jump to search. Computer science portal; The main article for this category is Instruction set. Subcategories. This category has the following 8 subcategories, out of 8 total. + Microprocessors by instruction set architecture‎ (9 C) 0–9 68k architecture‎ (5 C, 61 P) A ARM architecture‎ (4.

TalkPDP-11 architecture Wikipedia

Complex instruction set computer Simple English. PDP-11 lore[edit] A (false) folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B programming language. The PDP-11's increment and decrement addressing modes correspond to the в€’в€’i and i++ constructs in C. If i and j were both register variables, an expression such as *(в€’в€’i) = *(j++) could, The above is item 7 in a 52-member list of architecture instructional differences within the PDP-11 family, as itemized in Appendix B, "PDP-11 Family Differences" of_PDP-11 Architecture Handbook, 1983, digital. Most are quite minor or obvious, such as some PDP-11s had the Extended Instruction Set (EIS) or floating point and some did not..

The PDP-11 is a family of 16-bit minicomputers designed by DEC, in production from 1970-1990.Although the basic address space was 16 bits, most models could hold more main memory than that, although only a limited subset was visible to the program at any time.. It had 8 general purpose registers; the operand coding, which was applied regularly across essentially the entire instruction set The PDP-11 defined a stack pointer as we understand today, a register that controlled the operation of PUSH and POP style instructions, but the PDP-11 went one better and permitted any register to operate as a stack pointer by the addition of an auto increment/decrement modifier on all register operands. For example, this single instruction:

The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever. instructions from PDP-11/20 Instruction Set 2. 65c02 pdp11 - DEC PDP/11 (PDP family) 68000 - Motorola MC68000 68010 options specific for the ARMv7-A architecture, such as NEON instruction set. The instruction set of a computer (the machine code) is the language that is used to for the DEC VAX, DEC PDP 11 and Motorola 68000 architectures.

Introduction The PDP-11 instruction set offers a wide selection of operations and addressing modes. To save memory space and to simplify the implementation of control and communications applications, the PDP-11 instructions allow byte and word addressing in both single- and double-operand formats. Unique Features of the PDP-11 Series Instruction Set. Programmers liked the PDP-11 design because it had a highly-orthogonal instruction set which allowed a programmer to separately memorize all of the operations and the methods of accessing operands. They could then predict that any access method (or "addressing mode") would work with any

PDP-11 Architecture - Instruction Set - Double-operand Instructions Double-operand Instructions The high-order four bits specify the operation to be performed (with bit 15 generally selecting word versus byte addressing). It was awesome! In retrospect, I was quite lucky to learn PDP-11 programming before I learned the VAX architecture, Motorola 68000, and eventually Intel 8086/80286/80386 line. Here's why - all of those more advanced architectures have "bells and...

The PDP-11 processor architecture had a mostly orthogonal instruction set.For example, instead of instructions such as load and store, the PDP-11 had a move instruction for which either operand (source and destination) could be memory or register. There were no specific input or output instructions; the PDP-11 used memory-mapped I/O and so the same move instruction was used; orthogonality 03/08/2011 · I have written a PDP-11 assembly language simulator in Javascript. There will be three posts for this project: Post 1 (this post) gives an outline of the PDP-11 assembly language. Post 2 contains some example programs for the CRC-16, MD4 Hash and TEA (Tiny Encryption Algorithm) algorithms. Post 3 covers the actual simulator (written in…

The PDP-11 defined a stack pointer as we understand today, a register that controlled the operation of PUSH and POP style instructions, but the PDP-11 went one better and permitted any register to operate as a stack pointer by the addition of an auto increment/decrement modifier on all register operands. For example, this single instruction: You will not find a single document in the PDP-11 or VAX library from DEC that uses the term "instruction pointer." WP must follow the nomenclature used in its sources, and if sources for one manufacturers' architecture use different terms than those for another manufacturer, WP must follow suit. Indeed, it is practically WP:OR

The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever. A PDP–11 egy 16 bites CISC típusú miniszámítógép konstrukció. Az architektúra alap adattípusa a 16 bites gépi szó, emellett képes bájtok kezelésére is.. A processzor 8 db 16 bites általános célú regisztert tartalmaz, ezek jelölése R0, R1, R2, R3, R4, R5, R6 és R7. Kettő közülük speciális: az R6 a hardveres veremmutató regiszter, SP-vel is jelölhető, az R7 pedig

The PDP-11 ia one of the original mini-computers. It was used in a huge variety of ways, from timesharing to embedded control as well as some desktop use. PDP-11 is not a language per se, but PDP-11 assembly is a flavor of assembly. This early machine's architecture influenced later microprocessors and because it affected the design of the instructions from PDP-11/20 Instruction Set 2. 65c02 pdp11 - DEC PDP/11 (PDP family) 68000 - Motorola MC68000 68010 options specific for the ARMv7-A architecture, such as NEON instruction set. The instruction set of a computer (the machine code) is the language that is used to for the DEC VAX, DEC PDP 11 and Motorola 68000 architectures.

Department of Computer Science PDP-11 - Don S. Bidulock

pdp-11 wiki instruction set

PDP-11 — Wikipedia Republished // WIKI 2. The instruction set was extensively modelled and described in ISP (Instruction Set Processor) notation before the hardware was designed. The 11/20 instructions (now called the base instruction set) was largely orthogonal, in that the memory reference instructions could all use the same addressing modes. By treating I/O controller registers as, So, we decided to build our own PDP-11 simulator. 3.2 The Implementation in Java We implemented a PDP-11 simulator in Java, which included: • An emulation of the PDP-11 machine, including: o Almost a complete set of machine instructions o CPU fetch-decode-execute instruction cycle o 64Kbytes of Memory, addressable by byte or 16-bit word..

A PDP-11 COMPUTER SIMULATOR Rivier University

pdp-11 wiki instruction set

PDP-11 Wikipedia. The instruction set was extensively modelled and described in ISP (Instruction Set Processor) notation before the hardware was designed. The 11/20 instructions (now called the base instruction set) was largely orthogonal, in that the memory reference instructions could all use the same addressing modes. By treating I/O controller registers as https://fr.wikipedia.org/wiki/PDP-1 An orthogonal instruction set does not impose a limitation that requires a certain instruction to use a specific register so there is little overlapping of instruction functionality. Orthogonality was considered a major goal for processor designers in the 1970s, and the ….

pdp-11 wiki instruction set


PDP-11 lore[edit] A (false) folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B programming language. The PDP-11's increment and decrement addressing modes correspond to the в€’в€’i and i++ constructs in C. If i and j were both register variables, an expression such as *(в€’в€’i) = *(j++) could The PDP-11 defined a stack pointer as we understand today, a register that controlled the operation of PUSH and POP style instructions, but the PDP-11 went one better and permitted any register to operate as a stack pointer by the addition of an auto increment/decrement modifier on all register operands. For example, this single instruction:

Unique Features of the PDP-11 Series Instruction Set. Programmers liked the PDP-11 design because it had a highly-orthogonal instruction set which allowed a programmer to separately memorize all of the operations and the methods of accessing operands. They could then predict that any access method (or "addressing mode") would work with any The PDP11-40 Processor Handbook Cover Table of Contents Chapter 1: Introduction Chapter 2: System Architecture Chapter 3: Addressing Modes Chapter 4: Instruction Set List of Instructions CLR COM INC DEC NEG TST ASR ASL ROR ROL ADC SXT MOV CMP ADD BIT BIC BIS XOR BR BNE BPL BGE BLT BGT BLE BHIS BLO JMP JSR RTS MARK EMT TRAP BPT IOT RTT HALT WAIT

Un PDP-11 est un modГЁle d'ordinateur de la gamme des PDP (Programmable Data Processor) construit par Digital Equipment Corporation (DEC) entre 1970 et 1993.. Tous les PDP-11 sont 16 bits et entrent dans la classe des mini-ordinateurs. Ils furent extrГЄmement populaires car ils alliaient modularitГ©, un excellent rapport qualitГ©/prix, et leur utilisation n'Г©tait pas cantonnГ©e Г  un seul Unique Features of the PDP-11 Series Instruction Set. Programmers liked the PDP-11 design because it had a highly-orthogonal instruction set which allowed a programmer to separately memorize all of the operations and the methods of accessing operands. They could then predict that any access method (or "addressing mode") would work with any

The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever. UNIBU5-the key to the PDP-11's many strengths. Since all system eleВ­ ments, including the central processor, communicate with each other in identical fashion via the UNIBUS, the processor has the same easy acВ­ cess to peripherals as it has to memory. Figure 1-1 PDP-11 System Simplified Block Diagram

Internally, the chip set only used 8 bit data paths. The later LSI-11/2 processor used the same chip set, but had a dual width card and no onboard memory. Unlike most other PDP-11's (except the T11 chip), the processor status word had to be accessed with special instructions and was not … The PDP-11 is a family of 16-bit minicomputers designed by DEC, in production from 1970-1990.Although the basic address space was 16 bits, most models could hold more main memory than that, although only a limited subset was visible to the program at any time.. It had 8 general purpose registers; the operand coding, which was applied regularly across essentially the entire instruction set

The PDP-11 processor architecture has a mostly orthogonal instruction set.For example, instead of instructions such as load and store, the PDP-11 has a move instruction for which either operand (source and destination) can be memory or register. There are no specific input or output instructions; the PDP-11 uses memory-mapped I/O and so the same move instruction is used; orthogonality even Unique Features of the PDP-11 Series Instruction Set. Programmers liked the PDP-11 design because it had a highly-orthogonal instruction set which allowed a programmer to separately memorize all of the operations and the methods of accessing operands. They could then predict that any access method (or "addressing mode") would work with any

The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever. An orthogonal instruction set does not impose a limitation that requires a certain instruction to use a specific register so there is little overlapping of instruction functionality. Orthogonality was considered a major goal for processor designers in the 1970s, and the …

The PDP-8 instruction set is so small that many operations that are usually single instructions on a larger machine must be performed by instruction sequences on the PDP-8. While these are referred to as macros here, the memory resources of the PDP-8 are limited enough that these are usually not coded as given, but rather, carefully folded into An orthogonal instruction set does not impose a limitation that requires a certain instruction to use a specific register so there is little overlapping of instruction functionality. Orthogonality was considered a major goal for processor designers in the 1970s, and the …

UNIBU5-the key to the PDP-11's many strengths. Since all system ele­ ments, including the central processor, communicate with each other in identical fashion via the UNIBUS, the processor has the same easy ac­ cess to peripherals as it has to memory. Figure 1-1 PDP-11 System Simplified Block Diagram So, we decided to build our own PDP-11 simulator. 3.2 The Implementation in Java We implemented a PDP-11 simulator in Java, which included: • An emulation of the PDP-11 machine, including: o Almost a complete set of machine instructions o CPU fetch-decode-execute instruction cycle o 64Kbytes of Memory, addressable by byte or 16-bit word.

pdp-11 wiki instruction set

The instruction set was extensively modelled and described in ISP (Instruction Set Processor) notation before the hardware was designed. The 11/20 instructions (now called the base instruction set) was largely orthogonal, in that the memory reference instructions could all use the same addressing modes. By treating I/O controller registers as The PDP-11 processor architecture had a mostly orthogonal instruction set, and influenced the design of microprocessors, such as Motorola's 68000.Almost any operand could apply any of eight addressing modes to eight registers R0 to R7, where R0 to R5 were general purpose registers, R6 the Stack- and R7 the instruction pointer.

What Have We Learned from the PDP-11? Dave Cheney

pdp-11 wiki instruction set

PDP 11 architecture · gaojiechina/os_collection Wiki · GitHub. A complex instruction set computer (acronym CISC pronounced sisk), represents a CPU design method in which each instruction can execute several low-level operations, such as a load from memory, an arithmetic operation, and a memory store, all in a single instruction. The term is used in contrast to reduced instruction set computer (RISC)., Category:Instruction set architectures. From Wikipedia, the free encyclopedia. Jump to navigation Jump to search. Computer science portal; The main article for this category is Instruction set. Subcategories. This category has the following 8 subcategories, out of 8 total. + Microprocessors by instruction set architecture‎ (9 C) 0–9 68k architecture‎ (5 C, 61 P) A ARM architecture‎ (4.

PDP-11 architecture Wikipedia

software What is the instruction set of the PDP-7. UNIBU5-the key to the PDP-11's many strengths. Since all system eleВ­ ments, including the central processor, communicate with each other in identical fashion via the UNIBUS, the processor has the same easy acВ­ cess to peripherals as it has to memory. Figure 1-1 PDP-11 System Simplified Block Diagram, What is the PDP-11 instruction set? The instruction set of the PDP-11 was designed towards a clean, general, symmetric instruction set. It can be used as a register-based, stack-based, or memory-based machine, depending on the programmer's preferences. Interrupt responsiveness is also important, supported with multiple interrupt levels for real.

A complex instruction set computer (acronym CISC pronounced sisk), represents a CPU design method in which each instruction can execute several low-level operations, such as a load from memory, an arithmetic operation, and a memory store, all in a single instruction. The term is used in contrast to reduced instruction set computer (RISC). The Extended Instruction Set is an extension to the basic PDP-11 instruction set; it includes hardware multiply and divide, and also multi-bit shifts. The exact instructions include in the EIS are: MUL; DIV; ASH; ASHC; It was not available on the earliest PDP-11 models (the PDP-11/20 and the PDP-11/05); it was available as an option for the PDP-11/40 and the PDP-11/03; it was standard on all

See also: PDP-11 architecture The PDP-11 processor architecture has a mostly orthogonal instruction set. For example, instead of instructions such as load and store, the PDP-11 has a move instruction for which either operand (source and destination) can be memory or register. The PDP11-40 Processor Handbook Cover Table of Contents Chapter 1: Introduction Chapter 2: System Architecture Chapter 3: Addressing Modes Chapter 4: Instruction Set List of Instructions CLR COM INC DEC NEG TST ASR ASL ROR ROL ADC SXT MOV CMP ADD BIT BIC BIS XOR BR BNE BPL BGE BLT BGT BLE BHIS BLO JMP JSR RTS MARK EMT TRAP BPT IOT RTT HALT WAIT

instructions from PDP-11/20 Instruction Set 2. 65c02 pdp11 - DEC PDP/11 (PDP family) 68000 - Motorola MC68000 68010 options specific for the ARMv7-A architecture, such as NEON instruction set. The instruction set of a computer (the machine code) is the language that is used to for the DEC VAX, DEC PDP 11 and Motorola 68000 architectures. PDP-11 Unix systems also include an assembler (called "as"), structurally similar to MACRO-11, but with different syntax and fewer features. Myth of PDP-11 influence on programming languages. A folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B …

PDP-11 Architecture - Instruction Set - Double-operand Instructions Double-operand Instructions The high-order four bits specify the operation to be performed (with bit 15 generally selecting word versus byte addressing). 03/08/2011 · I have written a PDP-11 assembly language simulator in Javascript. There will be three posts for this project: Post 1 (this post) gives an outline of the PDP-11 assembly language. Post 2 contains some example programs for the CRC-16, MD4 Hash and TEA (Tiny Encryption Algorithm) algorithms. Post 3 covers the actual simulator (written in…

instructions from PDP-11/20 Instruction Set 2. 65c02 pdp11 - DEC PDP/11 (PDP family) 68000 - Motorola MC68000 68010 options specific for the ARMv7-A architecture, such as NEON instruction set. The instruction set of a computer (the machine code) is the language that is used to for the DEC VAX, DEC PDP 11 and Motorola 68000 architectures. Internally, the chip set only used 8 bit data paths. The later LSI-11/2 processor used the same chip set, but had a dual width card and no onboard memory. Unlike most other PDP-11's (except the T11 chip), the processor status word had to be accessed with special instructions and was not …

The PDP-11 processor architecture has a mostly orthogonal instruction set.For example, instead of instructions such as load and store, the PDP-11 has a move instruction for which either operand (source and destination) can be memory or register. There are no specific input or output instructions; the PDP-11 uses memory-mapped I/O and so the same move instruction is used; orthogonality even Est ce qu'on déplace vers microprocesseur à jeu d'instruction étendu ? ça reflete la réalité et c'est un titre en français. Greudin. Pour, en conservant la redirection CISC --> nouveau titre et Complex instruction set computer vers nouveau titre, de même pour RISC phe Au fait, pourquoi traduire Complex par Etendu ?

The PDP-11 is an instruction set architecture (ISA) developed by Digital Equipment Corporation (DEC). It is implemented by central processing units (CPUs) and microprocessors used in minicomputers of the same name. Additional information is found in DEC's PDP-11 … Introduction The PDP-11 instruction set offers a wide selection of operations and addressing modes. To save memory space and to simplify the implementation of control and communications applications, the PDP-11 instructions allow byte and word addressing in both single- and double-operand formats.

See also: PDP-11 architecture The PDP-11 processor architecture has a mostly orthogonal instruction set. For example, instead of instructions such as load and store, the PDP-11 has a move instruction for which either operand (source and destination) can be memory or register. The PDP-8 instruction set is so small that many operations that are usually single instructions on a larger machine must be performed by instruction sequences on the PDP-8. While these are referred to as macros here, the memory resources of the PDP-8 are limited enough that these are usually not coded as given, but rather, carefully folded into

PDP-11 Unix systems also include an assembler (called "as"), structurally similar to MACRO-11, but with different syntax and fewer features. Myth of PDP-11 influence on programming languages. A folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B … Designed around the proven UNIBUS architecture, the PDP-11/60 included user control store features previously unavailable from DIGITAL as well as several 11/70 class features such as cache memory and RAMP. 1979: The PDP-11/44 incorporated the complete PDP-11/70 instruction set and memory expansion into 1MB in a lower-cost package. The PDP-11/44

PDP-11 Unix systems also include an assembler (called "as"), structurally similar to MACRO-11, but with different syntax and fewer features. Myth of PDP-11 influence on programming languages. A folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B … The PDP-11 processor architecture has a mostly orthogonal instruction set.For example, instead of instructions such as load and store, the PDP-11 has a move instruction for which either operand (source and destination) can be memory or register. There are no specific input or output instructions; the PDP-11 uses memory-mapped I/O and so the same move instruction is used; orthogonality even

In computer engineering, an orthogonal instruction set is an instruction set architecture where all instruction types can use all addressing modes.It is "orthogonal" in the sense that the instruction type and the addressing mode vary independently.An orthogonal instruction set does not impose a limitation that requires a certain instruction to use a specific register so there is little PDP-11 Architecture - Instruction Set - Double-operand Instructions Double-operand Instructions The high-order four bits specify the operation to be performed (with bit 15 generally selecting word versus byte addressing).

instructions from PDP-11/20 Instruction Set 2. 65c02 pdp11 - DEC PDP/11 (PDP family) 68000 - Motorola MC68000 68010 options specific for the ARMv7-A architecture, such as NEON instruction set. The instruction set of a computer (the machine code) is the language that is used to for the DEC VAX, DEC PDP 11 and Motorola 68000 architectures. UNIBU5-the key to the PDP-11's many strengths. Since all system eleВ­ ments, including the central processor, communicate with each other in identical fashion via the UNIBUS, the processor has the same easy acВ­ cess to peripherals as it has to memory. Figure 1-1 PDP-11 System Simplified Block Diagram

An orthogonal instruction set does not impose a limitation that requires a certain instruction to use a specific register so there is little overlapping of instruction functionality. Orthogonality was considered a major goal for processor designers in the 1970s, and the … The PDP-11 defined a stack pointer as we understand today, a register that controlled the operation of PUSH and POP style instructions, but the PDP-11 went one better and permitted any register to operate as a stack pointer by the addition of an auto increment/decrement modifier on all register operands. For example, this single instruction:

PDP-11 Unix systems also include an assembler (called "as"), structurally similar to MACRO-11, but with different syntax and fewer features. Myth of PDP-11 influence on programming languages. A folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B … You will not find a single document in the PDP-11 or VAX library from DEC that uses the term "instruction pointer." WP must follow the nomenclature used in its sources, and if sources for one manufacturers' architecture use different terms than those for another manufacturer, WP must follow suit. Indeed, it is practically WP:OR

The PDP-11 ia one of the original mini-computers. It was used in a huge variety of ways, from timesharing to embedded control as well as some desktop use. PDP-11 is not a language per se, but PDP-11 assembly is a flavor of assembly. This early machine's architecture influenced later microprocessors and because it affected the design of the The above is item 7 in a 52-member list of architecture instructional differences within the PDP-11 family, as itemized in Appendix B, "PDP-11 Family Differences" of_PDP-11 Architecture Handbook, 1983, digital. Most are quite minor or obvious, such as some PDP-11s had the Extended Instruction Set (EIS) or floating point and some did not.

The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever. It was awesome! In retrospect, I was quite lucky to learn PDP-11 programming before I learned the VAX architecture, Motorola 68000, and eventually Intel 8086/80286/80386 line. Here's why - all of those more advanced architectures have "bells and...

The PDP-11 Assembly Language Assembly Language

pdp-11 wiki instruction set

Introduction to the PDP 11 Unit 1 System Overview YouTube. Un PDP-11 est un modèle d'ordinateur de la gamme des PDP (Programmable Data Processor) construit par Digital Equipment Corporation (DEC) entre 1970 et 1993.. Tous les PDP-11 sont 16 bits et entrent dans la classe des mini-ordinateurs. Ils furent extrêmement populaires car ils alliaient modularité, un excellent rapport qualité/prix, et leur utilisation n'était pas cantonnée à un seul, 03/08/2011 · I have written a PDP-11 assembly language simulator in Javascript. There will be three posts for this project: Post 1 (this post) gives an outline of the PDP-11 assembly language. Post 2 contains some example programs for the CRC-16, MD4 Hash and TEA (Tiny Encryption Algorithm) algorithms. Post 3 covers the actual simulator (written in….

PDP 11 architecture В· gaojiechina/os_collection Wiki В· GitHub

pdp-11 wiki instruction set

Software Engineers Handbook/Language Dictionary/DEC PDP-11. An orthogonal instruction set does not impose a limitation that requires a certain instruction to use a specific register so there is little overlapping of instruction functionality. Orthogonality was considered a major goal for processor designers in the 1970s, and the … https://fr.wikipedia.org/wiki/Test-and-set The PDP-8 instruction set is so small that many operations that are usually single instructions on a larger machine must be performed by instruction sequences on the PDP-8. While these are referred to as macros here, the memory resources of the PDP-8 are limited enough that these are usually not coded as given, but rather, carefully folded into.

pdp-11 wiki instruction set


PDP-11 lore[edit] A (false) folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B programming language. The PDP-11's increment and decrement addressing modes correspond to the в€’в€’i and i++ constructs in C. If i and j were both register variables, an expression such as *(в€’в€’i) = *(j++) could The PDP-11 processor architecture has a mostly orthogonal instruction set.For example, instead of instructions such as load and store, the PDP-11 has a move instruction for which either operand (source and destination) can be memory or register. There are no specific input or output instructions; the PDP-11 uses memory-mapped I/O and so the same move instruction is used; orthogonality even

UNIBU5-the key to the PDP-11's many strengths. Since all system eleВ­ ments, including the central processor, communicate with each other in identical fashion via the UNIBUS, the processor has the same easy acВ­ cess to peripherals as it has to memory. Figure 1-1 PDP-11 System Simplified Block Diagram The PDP-11 is a family of 16-bit minicomputers designed by DEC, in production from 1970-1990.Although the basic address space was 16 bits, most models could hold more main memory than that, although only a limited subset was visible to the program at any time.. It had 8 general purpose registers; the operand coding, which was applied regularly across essentially the entire instruction set

The PDP-11 defined a stack pointer as we understand today, a register that controlled the operation of PUSH and POP style instructions, but the PDP-11 went one better and permitted any register to operate as a stack pointer by the addition of an auto increment/decrement modifier on all register operands. For example, this single instruction: The instruction set was extensively modelled and described in ISP (Instruction Set Processor) notation before the hardware was designed. The 11/20 instructions (now called the base instruction set) was largely orthogonal, in that the memory reference instructions could all use the same addressing modes. By treating I/O controller registers as

UNIBU5-the key to the PDP-11's many strengths. Since all system eleВ­ ments, including the central processor, communicate with each other in identical fashion via the UNIBUS, the processor has the same easy acВ­ cess to peripherals as it has to memory. Figure 1-1 PDP-11 System Simplified Block Diagram The Extended Instruction Set is an extension to the basic PDP-11 instruction set; it includes hardware multiply and divide, and also multi-bit shifts. The exact instructions include in the EIS are: MUL; DIV; ASH; ASHC; It was not available on the earliest PDP-11 models (the PDP-11/20 and the PDP-11/05); it was available as an option for the PDP-11/40 and the PDP-11/03; it was standard on all

The PDP-11 defined a stack pointer as we understand today, a register that controlled the operation of PUSH and POP style instructions, but the PDP-11 went one better and permitted any register to operate as a stack pointer by the addition of an auto increment/decrement modifier on all register operands. For example, this single instruction: The PDP-11 processor architecture had a mostly orthogonal instruction set.For example, instead of instructions such as load and store, the PDP-11 had a move instruction for which either operand (source and destination) could be memory or register. There were no specific input or output instructions; the PDP-11 used memory-mapped I/O and so the same move instruction was used; orthogonality

A complex instruction set computer (acronym CISC pronounced sisk), represents a CPU design method in which each instruction can execute several low-level operations, such as a load from memory, an arithmetic operation, and a memory store, all in a single instruction. The term is used in contrast to reduced instruction set computer (RISC). The PDP-11 processor architecture had a mostly orthogonal instruction set.For example, instead of instructions such as load and store, the PDP-11 had a move instruction for which either operand (source and destination) could be memory or register. There were no specific input or output instructions; the PDP-11 used memory-mapped I/O and so the same move instruction was used; orthogonality

An orthogonal instruction set does not impose a limitation that requires a certain instruction to use a specific register so there is little overlapping of instruction functionality. Orthogonality was considered a major goal for processor designers in the 1970s, and the … Un PDP-11 est un modèle d'ordinateur de la gamme des PDP (Programmable Data Processor) construit par Digital Equipment Corporation (DEC) entre 1970 et 1993.. Tous les PDP-11 sont 16 bits et entrent dans la classe des mini-ordinateurs. Ils furent extrêmement populaires car ils alliaient modularité, un excellent rapport qualité/prix, et leur utilisation n'était pas cantonnée à un seul

PDP-11 lore[edit] A (false) folk myth is that the instruction set architecture of the PDP-11 influenced the idiomatic use of the B programming language. The PDP-11's increment and decrement addressing modes correspond to the в€’в€’i and i++ constructs in C. If i and j were both register variables, an expression such as *(в€’в€’i) = *(j++) could The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever.

A complex instruction set computer (acronym CISC pronounced sisk), represents a CPU design method in which each instruction can execute several low-level operations, such as a load from memory, an arithmetic operation, and a memory store, all in a single instruction. The term is used in contrast to reduced instruction set computer (RISC). The PDP11-40 Processor Handbook Cover Table of Contents Chapter 1: Introduction Chapter 2: System Architecture Chapter 3: Addressing Modes Chapter 4: Instruction Set List of Instructions CLR COM INC DEC NEG TST ASR ASL ROR ROL ADC SXT MOV CMP ADD BIT BIC BIS XOR BR BNE BPL BGE BLT BGT BLE BHIS BLO JMP JSR RTS MARK EMT TRAP BPT IOT RTT HALT WAIT

Un PDP-11 est un modГЁle d'ordinateur de la gamme des PDP (Programmable Data Processor) construit par Digital Equipment Corporation (DEC) entre 1970 et 1993.. Tous les PDP-11 sont 16 bits et entrent dans la classe des mini-ordinateurs. Ils furent extrГЄmement populaires car ils alliaient modularitГ©, un excellent rapport qualitГ©/prix, et leur utilisation n'Г©tait pas cantonnГ©e Г  un seul The PDP-11 processor architecture had a mostly orthogonal instruction set, and influenced the design of microprocessors, such as Motorola's 68000.Almost any operand could apply any of eight addressing modes to eight registers R0 to R7, where R0 to R5 were general purpose registers, R6 the Stack- and R7 the instruction pointer.

What is the PDP-11 instruction set? The instruction set of the PDP-11 was designed towards a clean, general, symmetric instruction set. It can be used as a register-based, stack-based, or memory-based machine, depending on the programmer's preferences. Interrupt responsiveness is also important, supported with multiple interrupt levels for real The above is item 7 in a 52-member list of architecture instructional differences within the PDP-11 family, as itemized in Appendix B, "PDP-11 Family Differences" of_PDP-11 Architecture Handbook, 1983, digital. Most are quite minor or obvious, such as some PDP-11s had the Extended Instruction Set (EIS) or floating point and some did not.

Unique Features of the PDP-11 Series Instruction Set. Programmers liked the PDP-11 design because it had a highly-orthogonal instruction set which allowed a programmer to separately memorize all of the operations and the methods of accessing operands. They could then predict that any access method (or "addressing mode") would work with any The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever.

The Extended Instruction Set is an extension to the basic PDP-11 instruction set; it includes hardware multiply and divide, and also multi-bit shifts. The exact instructions include in the EIS are: MUL; DIV; ASH; ASHC; It was not available on the earliest PDP-11 models (the PDP-11/20 and the PDP-11/05); it was available as an option for the PDP-11/40 and the PDP-11/03; it was standard on all See also: PDP-11 architecture The PDP-11 processor architecture has a mostly orthogonal instruction set. For example, instead of instructions such as load and store, the PDP-11 has a move instruction for which either operand (source and destination) can be memory or register.

The PDP-8 instruction set is so small that many operations that are usually single instructions on a larger machine must be performed by instruction sequences on the PDP-8. While these are referred to as macros here, the memory resources of the PDP-8 are limited enough that these are usually not coded as given, but rather, carefully folded into This document is made up of information extracted from the LSI-11 Processor Handbook and PDP-11 Architecture Handbook. It defines the basic instruction set and addressing modes of the Digital Equipment Corporation (DEC) generic PDP-11 family of minicomputers.

What is the PDP-11 instruction set? The instruction set of the PDP-11 was designed towards a clean, general, symmetric instruction set. It can be used as a register-based, stack-based, or memory-based machine, depending on the programmer's preferences. Interrupt responsiveness is also important, supported with multiple interrupt levels for real Introduction The PDP-11 instruction set offers a wide selection of operations and addressing modes. To save memory space and to simplify the implementation of control and communications applications, the PDP-11 instructions allow byte and word addressing in both single- and double-operand formats.

The PDP-11 is a series of 16-bit minicomputers sold by Digital Equipment Corporation (DEC) from 1970 into the 1990s, one of a succession of products in the PDP series. In total, around 600,000 PDP-11s of all models were sold, making it one of DEC's most successful product lines. The PDP-11 is considered by some experts to be the most popular minicomputer ever. A PDP–11 egy 16 bites CISC típusú miniszámítógép konstrukció. Az architektúra alap adattípusa a 16 bites gépi szó, emellett képes bájtok kezelésére is.. A processzor 8 db 16 bites általános célú regisztert tartalmaz, ezek jelölése R0, R1, R2, R3, R4, R5, R6 és R7. Kettő közülük speciális: az R6 a hardveres veremmutató regiszter, SP-vel is jelölhető, az R7 pedig

pdp-11 wiki instruction set

Un PDP-11 est un modГЁle d'ordinateur de la gamme des PDP (Programmable Data Processor) construit par Digital Equipment Corporation (DEC) entre 1970 et 1993.. Tous les PDP-11 sont 16 bits et entrent dans la classe des mini-ordinateurs. Ils furent extrГЄmement populaires car ils alliaient modularitГ©, un excellent rapport qualitГ©/prix, et leur utilisation n'Г©tait pas cantonnГ©e Г  un seul The Extended Instruction Set is an extension to the basic PDP-11 instruction set; it includes hardware multiply and divide, and also multi-bit shifts. The exact instructions include in the EIS are: MUL; DIV; ASH; ASHC; It was not available on the earliest PDP-11 models (the PDP-11/20 and the PDP-11/05); it was available as an option for the PDP-11/40 and the PDP-11/03; it was standard on all

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