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Aspect of the instruction set architecture of CPUs
the operand(s) of each instruction. An addressing mode specifies how to calculate the effective memory address of an operand by using information held
Addressing_mode
Operating mode of all x86-compatible CPUs
Real mode, also called real address mode, is an operating mode of all x86-compatible CPUs. The mode gets its name from the fact that addresses in real
Real_mode
Family of backward-compatible assembly languages
in MMX) registers. The x86 processor also includes complex addressing modes for addressing memory with an immediate offset, a register, a register with
X86_assembly_language
Instruction encoding rule for the x86 instruction set
SIBMEM addressing. This addressing mode is used for instructions that perform a sequence of strided memory accesses. The effective address to use for
ModR/M
64-bit extension of x86 architecture
64-bit mode, instructions are modified to support 64-bit operands and 64-bit addressing mode. The x86-64 architecture defines a compatibility mode that
X86-64
Operational mode of x86-compatible CPUs
In computing, protected mode, also called protected virtual address mode, is an operational mode of x86-compatible central processing units (CPUs). It
Protected_mode
Variant of real mode in x86 computing
access to the entire memory. Contrary to its name, it is not a separate addressing mode that the x86 processors can operate in. It is used in the 80286 and
Unreal_mode
Family of instruction set architectures
(INS/OUTS) Real mode (including huge real mode), 16-bit protected mode, VM86 16-bit addressing mode VT-x will no longer provide unrestricted mode 8259 support;
X86
Microprocessor produced by Western Digital
destination addressing mode and register. If field I = 0, designated register contains the address of the operand, the equivalent of addressing mode (Rn). If
WD16
Computer memory addressing model
memory addressing paradigm in which "memory appears to the program as a single contiguous address space." The CPU can directly (and linearly) address all
Flat_memory_model
Instruction set architecture developed by Digital Equipment Corporation
word versus byte addressing). Two groups of six bits specify the source operand addressing mode and the destination operand addressing mode, as defined above
PDP-11_architecture
IBM's 64-bit instruction set architecture implemented by its mainframe computers
two addressing modes supported by S/370-XA and ESA, a/Architecture has an extended addressing mode with 64-bit virtual addresses. The addressing mode is
Z/Architecture
8-bit microprocessor from 1975
56 instructions with (possibly) multiple addressing modes. Depending on the instruction and addressing mode, the opcode may require zero, one or two additional
MOS_Technology_6502
Serial communication bus
resemblance to other I2C bus modes is limited to: the start and stop conditions are used to delimit transfers, I2C addressing allows multiple target devices
I2C
Standard formats of pulsed sequences for aviation transponders
sequence called inter-mode.[citation needed] Mode S equipped aircraft are assigned a unique ICAO 24-bit address or (informally) Mode-S "hex code" upon national
Aviation transponder interrogation modes
Aviation_transponder_interrogation_modes
Processor register which changes or controls the general behavior of a CPU
performed by control registers include interrupt control, switching the addressing mode, paging control, and coprocessor control. The early CPU lacked dedicated
Control_register
CMOS microprocessor in the 6502 family
original 6502, fixes several problems, and adds new instructions and addressing modes. The power usage is on the order of 10 to 20 times less than the original
WDC_65C02
24-bit-addressing and 31-bit-addressing code include two new register-register call/return instructions which also effect an addressing mode change,
IBM_System/370-XA
Educational hypothetical computer
bits: n: Indirect addressing flag i: Immediate addressing flag x: Indexed addressing flag b: Base address-relative flag p: Program counter-relative flag
Simplified Instructional Computer
Simplified_Instructional_Computer
Instruction set architecture extension for microprocessors
addressing require the SIB byte, which encodes 2-bit scale factor as well as 3-bit index and 3-bit base registers. Depending on the addressing mode,
EVEX_prefix
Part of a computer instruction
operation will act upon. Opcode prefixes may alter the number, size, or addressing mode of the operands. RISC processors do not use opcode prefixes. Opcode
Opcode_prefix
Model that describes the programmable interface of a computer processor
addressing modes and optimizations (such as sub-register addressing, memory operands in ALU instructions, absolute addressing, PC-relative addressing
Instruction_set_architecture
8/16-bit microprocessor
Direct page addressing uses an 8-bit address, which results in faster access than when a 16- or 24-bit address is used. Also, some addressing modes that offer
WDC_65C816
Various meanings of the terms
another specifies the addressing mode. An orthogonal instruction set uniquely encodes all combinations of registers and addressing modes. In telecommunications
Orthogonality
Feature of computer systems
64-bit mode of x86-64 CPU, or the Physical Address Extension (PAE), a 36-bit addressing mode. In such a case, a device using DMA with a 32-bit address bus
Direct_memory_access
Instruction set architecture extension for microprocessors
addressing mode. The base-plus-index and scale-plus-index forms of 32-bit addressing (encoded with r/m = 100 and mod ≠ 11) require another addressing
VEX_prefix
Networking protocol
of several addressing modes. In addition to the 6-byte MAC address (including multicast and unicast), it supports a MAC address-less mode, and an optional
Generic_Stream_Encapsulation
Early system for organizing the IPv4 address space
256 local addresses. The leading bit sequence 111 designated an at-the-time unspecified addressing mode ("escape to extended addressing mode"), which was
Classful_network
Reference to a specific memory location
word addresses, giving an address space of 218 36-bit words, approximately 1 megabyte of storage), not byte addressing. The range of addressing of memory
Memory_address
Type of computer instruction set
instruction types can use all addressing modes. It is "orthogonal" in the sense that the instruction type and the addressing mode may vary independently. An
Orthogonal_instruction_set
Early microprocessor
other addressing modes, though. Thus, the direct addressing mode needs to be emulated using the four instructions mentioned earlier to load the address into
RCA_1802
Series of 32 bit CISC microprocessors
bit field manipulations Addressing modes added scaled indexing and another level of indirection Low cost, EC = 24-bit address 68030: Split instruction
Motorola_68000_series
8-bit microprocessor
the stack pointer SP more flexible addressing modes for input/output to external peripheral ports single-bit addressing of all registers and memory, including
Zilog_Z80
Personal computer, invented in 1970
operand using five addressing modes: Immediate (operand is in second byte of instruction) Memory (second byte of instruction is the address of the operand)
Kenbak-1
Operating mode for x86 CPUs
mode, while 32-bit programs and 16-bit protected mode programs are executed in a sub-mode called compatibility mode. Real mode or virtual 8086 mode programs
Long_mode
Computer processor element
instances (XA/370), the instruction address was 31 bits plus a mode bit (24 bit addressing mode if zero; 31 bit addressing mode if one) for a total of 32 bits
Program_status_word
Microprocessor
have full 32-bit address and data buses, speeding up 32-bit operations and allowing 32-bit addressing, rather than the 24-bit addressing of the 68000 and
Motorola_68000
English electronic band
Depeche Mode (/dəˌpɛʃ ˈmoʊd/ də-PESH MOHD) are an English electronic band formed in Basildon, Essex in 1980. Originally formed with the line-up of Dave
Depeche_Mode
8-bit microcontroller family
pointer-relative addressing mode. Although internally a Harvard architecture it has "memory bridge" that creates a unified 24-bit address space, allowing
STM8
Acorn-clone personal computer
which is a version of RISC OS that supports ARM CPUs with 32-bit addressing modes. The sources and hardware design were subsequently acquired by Castle
Iyonix_PC
registers) and their semantics (such as the memory consistency and addressing modes), the instruction set (the set of machine instructions that comprises
Comparison of instruction set architectures
Comparison_of_instruction_set_architectures
Representation of a memory address
physical addresses, which may be accessed by the device drivers in an operating system. Address constant Addressing mode Address space Page address register
Physical_address
Single-chip 16-bit microprocessor
Indicating indirect addressing used separate opcodes, as opposed to using the addressing indication bits. When used, the address was constructed as normal
National_Semiconductor_PACE
Instruction set architecture extension for microprocessors
addressing mode. The base-plus-index and scale-plus-index forms of 32-bit addressing (encoded with r/m = 100 and mod ≠ 11) require another addressing
REX_prefix
Mixed-signal microcontroller family
extension words. Addressing modes are specified by the 2-bit source addressing mode (As) and the 1-bit destination addressing mode (Ad) fields. Some
TI_MSP430
General Electric mainframe computers
addressing modes, many of which use indirect words, some of which are auto-incrementing or auto-decrementing. Multiple levels of indirect addressing are
GE-600_series
Central computer component that executes instructions
value that may be a processor register or a memory address, as determined by some addressing mode. In some CPU designs, the instruction decoder is implemented
Central_processing_unit
Line of single-chip microprocessors from Microchip Technology
location or an immediate constant. There are no other addressing modes, although an indirect address mode can be emulated using the indirect register(s). Data-space
PIC_microcontrollers
Spreadsheet program
addressing style introduced by VisiCalc. Microsoft carried Multiplan's R1C1 legacy forward into Microsoft Excel, which offers both addressing modes,
Multiplan
16-bit microprocessor family
addressing mode. For instance, if direct addressing was being used, bit 11 was set to 0, 10 and 9 to 1, and the remaining 11 bits encoded the address
Ferranti_F100-L
Instruction in computer program
well, such as the range of the jump (the offset size) or a special addressing mode that should be used to locate the actual effective offset. This table
Branch_(computer_science)
Display device for presentation of images, video, or text transmitted electronically
selective reflection. Each sub-pixel of a display device must be selected (addressed) in order to be energized in a controlled way. Display device 3D display
Electronic_visual_display
8-bit microcontroller product lines from STMicroelectronics
([address8.w],X) addressing modes. PIY (0x91) combines the above effects. This allows the ([address8],Y) and ([address8.w],Y) addressing modes. (It may also
ST6_and_ST7
Constant exchange between memory and storage
source operand using a displacement deferred addressing mode, where the longword containing the operand address crosses a page boundary, and a destination
Thrashing_(computer_science)
8/16-bit microprocessor
The system also added a new addressing mode that used a base address on the stack as the basis for indirect addressing. Finally, the new four-byte AUG
CSG_65CE02
Specialized microprocessor optimized for digital signal processing
modulo addressing Allows circular buffers to be implemented without having to test for wrapping Bit-reversed addressing, a special addressing mode useful
Digital_signal_processor
8-bit microprocessor
independent, the 6809 added a variety of new addressing modes. Among these was program-counter-relative addressing which allowed any memory location to be
Motorola_6809
Unique identifier assigned to network interfaces
same MAC address. The IEEE 802 MAC address originally comes from the Xerox Network Systems Ethernet addressing scheme. This 48-bit address space contains
MAC_address
Topics referred to by the same term
Direct address may refer to: Noun of address, a term or phrase used to directly address an individual The direct addressing mode in computer programming
Direct_address
Family of RISC-based computer architectures
as PC-relative addressing (indeed, on the 32-bit ARM the PC is one of its 16 registers) and pre- and post-increment addressing modes. The ARM instruction
Arm_architecture_family
Feature of specific microprocessor
protected mode is memory addressing which is totally different between protected mode and real mode. As mentioned, by working under VM86 mode the segmentation
Virtual_8086_mode
Machine instruction code that executes properly regardless of where in memory it resides
truncated addressing similar to that of the UNIVAC III, with code position independence in mind. In truncated addressing, memory addresses are calculated
Position-independent_code
Official or legally recognized title for a person or entity
of canvassers, are mostly addressed as Your Honor, because it was unfortunately rendered from "the Spanish term for addressing parliamentarians, and a mistake
Style_(form_of_address)
Switch between processes or tasks on a computer
When the system transitions between user mode and kernel mode, a context switch is not necessary; a mode transition is not by itself a context switch
Context_switch
Operating mode of x86 central processor units
System Management Mode (SMM, sometimes called ring −2 in reference to protection rings) is an operating mode of x86 central processor units (CPUs) in which
System_Management_Mode
Maximum amount of RAM accessible by a computer
of 20-bit addressing in the x86 architecture. Using the 24-bit memory addressing capabilities of the 286 CPU architecture, a total address space of 16 MB
RAM_limit
Topics referred to by the same term
Linear mode may refer to: Linear address mode Linear amplifier Linear mode (FET) Linear mode (JFET) Linear mode (MOSFET) Linear power supply Linear system
Linear_mode
Instruction set architecture
and store 8-bit bytes, 16-bit halfwords, and 32-bit words. Only one addressing mode is supported: base + displacement. Since MIPS I is a 32-bit architecture
MIPS_architecture
Memory page starting at address zero
zero page and non-zero page addresses; this is called zero-page addressing in 6502 terminology (it is called direct addressing in Motorola 6800 terminology;
Zero_page
Programmed microcontroller
used for other functions v1.4 – Added Low Power mode (‘sleep’ function) – Added extended addressing mode for CAN protocols – Added 4800 baud ISO 9141 and
ELM327
64-bit operating system for IBM mainframes
exclusively in 64-bit mode. Application programmers can still use any addressing mode: all applications, regardless of their addressing mode(s), can coexist
Z/OS
Processor executing one instruction in minimal clock cycles
(floating-point registers are often kept separate) Simple addressing modes with complex addressing performed by instruction sequences Few data types in hardware
Reduced instruction set computer
Reduced_instruction_set_computer
data in a disk drive, as used in the Cylinder-Head-Record (CCHHR) addressing mode of a CKD disk. The concept is concentric, through the physical platters
Track_(disk_drive)
Two-dimensional patterned array
every time a change is needed. Generally, text modes are not all-points-addressable, whereas graphics modes are. With the advent of more powerful computer
Dot_matrix
Basic instruction cycle in a computer
determining the address for operands, usually called the addressing modes. Some common ways the effective address can be found are: Direct addressing - the instruction
Instruction_cycle
Prefix applied to microcontrollers made by Toshiba
additional addressing modes: (SP+d) and (HL+A) indexed modes operating similarly to (IX+d) and (IY+d) single-byte "zero page" addressing of memory from
Toshiba_TLCS
32-bit version of x86 architecture
strides, and non-segmented pointers are 4 bytes wide. More general addressing modes Any GPR can be used as a base register, and any GPR other than ESP
IA-32
Computer storage interface standard
which makes it possible to address drives as large as 264 sectors. The first drive interface used 22-bit addressing mode which resulted in a maximum
Parallel_ATA
Family of mainframe computers
addition, the top five bits of each address can specify direct addressing, indirect addressing, or indexed addressing via two sets of 15 four-character
Honeywell_200
8-bit microprocessor
faster at the same clock frequency. eZ80 features an optional mode that expands memory addressing to 16 megabytes. The eZ80 has a three-stage pipeline: fetch
Zilog_eZ80
Network interface controller mode that eavesdrops on messages intended for others
destination MAC address. In non-promiscuous mode, when a NIC receives a frame, it drops it unless the frame is addressed to that NIC's MAC address or is a broadcast
Promiscuous_mode
16-bit minicomputer series
eight-bit address field, and a two-bit field that specified the mode of memory addressing. The four modes were: Mode 0 — absolute addressing. The contents
Data_General_Nova
Visual representation of all opcodes in an instruction set
151 of them, organized into 56 instructions with (possibly) multiple addressing modes. Because not all 256 opcodes are used, some opcode spaces are blank
Opcode_table
Computer architecture bit width
in 24-bit addressing. With the System/370-XA architecture and the IBM Enterprise Systems Architecture, in addition to a 24-bit addressing mode for compatibility
31-bit_computing
Expansion card standard for laptop computers
for the interface mode of either "memory" (using the limited PC Card addressing mode) or "ATA storage" (using PCMCIA-ATA addressing mode). ExpressCard is
PC_Card
Type of computer
dedicated collection of registers to serve as address registers, off-loading the task of memory addressing from the data stack. For example, MuP21 relies
Stack_machine
Series of 16-bit computers by Texas Instruments
144 instructions. The instructions are grouped according to which addressing modes and how many operands they accept. A group is defined by the layout
TI-990
Way to specify the location of data on computer storage devices
the address is typically 32 or 64 bits. Most hard disk drives released after 1996 implement logical block addressing. In logical block addressing, only
Logical_block_addressing
Programming variable that persists for the lifetime of the program
languages both for static variables and other concepts. The absolute address addressing mode can only be used with static variables, because those are the only
Static_variable
Computer architecture with addressable bytes
Byte addressing in hardware architectures supports accessing individual bytes. Computers with byte addressing are sometimes called byte machines, in contrast
Byte_addressing
Associates addresses in the layers of a networked device implementation
using IEEE 802 standards, FDDI, X.25, Frame Relay and Asynchronous Transfer Mode (ATM). In Internet Protocol Version 6 (IPv6) networks, the functionality
Address_Resolution_Protocol
Computer memory management scheme
source operand using a displacement deferred addressing mode, where the longword containing the operand address crosses a page boundary, and a destination
Memory_paging
16-bit microprocessor
and/or data, or as part of the ordinary address space. It has a huge number of new instructions and addressing modes giving a total of over 2000 combinations
Zilog_Z280
Method of CPU communication
because regular memory instructions are used to address devices, all of the CPU's addressing modes are available for the I/O as well as the memory, and
Memory-mapped I/O and port-mapped I/O
Memory-mapped_I/O_and_port-mapped_I/O
Computer instruction set architecture
making it primarily a register-memory machine. Load–store architecture Addressing mode Michael J. Flynn (1995). Computer architecture: pipelined and parallel
Register–memory_architecture
16-bit microprocessor
accessing operands (addressing modes). Addressing modes include Immediate (operand in instruction), Direct or "Symbolic" (operand address in instruction)
TMS9900
8-bit microprocessor
16-bit address bus that can directly access 64 KB of memory and an 8-bit bi-directional data bus. It has 72 instructions with seven addressing modes for
Motorola_6800
Label to identify a network interface of a computer or other network node
primary addressing and routing methodologies common in networking: unicast addressing, anycast addressing, and multicast addressing. A unicast address identifies
IPv6_address
Family of mainframe computers by ICT
or 2. This format was only available in 15-bit addressing mode. In 22-bit mode the counter and address were kept in separate words. Character counter
ICT_1900_series
Memory segmentation on Intel x86
unique addressing schemes, but it can also be used to advantage, for example when addressing multiple nested data structures. While real mode segments
X86_memory_segmentation
ADDRESSING MODE
ADDRESSING MODE
Boy/Male
Hindu, Indian, Modern
Modern Name of Lord Shiva; Brave; Divine; Honesty; Virtuous; Healthy; Goodness; Pure; Person Having All Qualities; A Part of Lord Shiva
Female
English
English name derived from the vocabulary word, from Middle French modestie, from Latin modestus, MODESTY means "moderate, sober."
Girl/Female
Latin
Without conceit; modest.
Boy/Male
Indian, Modern, Tamil
Modern
Male
Russian
(МодеÑÑ‚) Russian form of Roman Latin Modestus, MODEST means "moderate, sober."
Boy/Male
Hindu, Indian
Statements; Dressing
Male
Italian
Italian, Portuguese and Spanish form of Roman Latin Modestus, MODESTO means "moderate, sober."
Girl/Female
Australian, Dutch, German, Latin, Spanish
Shy; Modesty; Moderate; Sober
Boy/Male
Latin
Modesty; moderate. The Spanish saint Modesto.
Female
French
Feminine form of French Modeste, MODESTINE means "moderate, sober."
Boy/Male
Latin
Modest.
Girl/Female
Latin Spanish
Modest.
Girl/Female
French, German, Latin, Spanish
Modest
Boy/Male
Hindu, Indian, Modern, Sanskrit
New; Modern; Fresh; Latest; Recent
Girl/Female
Latin English
Without conceit; modest.
Male
French
French form of Roman Latin Modestus, MODESTE means "moderate, sober."
Boy/Male
Hindu, Indian
Addressing Jain God
Girl/Female
Latin Spanish
Modest.
Boy/Male
Australian, French, German, Italian, Latin, Portuguese
Moderate; The Spanish Saint Modesto; Modern Coinage from the Name of Flower
Boy/Male
Arabic, Indian, Modern, Muslim
Modern
ADDRESSING MODE
ADDRESSING MODE
Boy/Male
Hindu, Indian, Marathi
Lord of Truth
Girl/Female
Indian
Experience
Girl/Female
Hindu, Indian, Marathi
Lightening
Surname or Lastname
English (Cumbria)
English (Cumbria) : nickname for a keen hunter of foxes, from Northern Middle English tod(de) ‘fox’ + Middle English hunter(e) (see Hunter).
Female
Native American
Native American Choctaw name POLOMA means "bow."
Boy/Male
African, Arabic
Forgot
Girl/Female
Hindu
Beautiful
Girl/Female
Muslim
High, Sublime, Exquisite
Surname or Lastname
English
English : probably a habitational name from Lamplugh in Cumbria, an ancient Celtic name meaning ‘bare valley’, from nant ‘valley’ + bluch ‘bare’.
Boy/Male
Hindu
ADDRESSING MODE
ADDRESSING MODE
ADDRESSING MODE
ADDRESSING MODE
ADDRESSING MODE
n.
A preparation to fit food for use; a condiment; as, a dressing for salad.
interj.
An exclamation used in addressing a familiar acquaintance.
n.
Hewing or dressing stone.
n.
The act of addressing or directing one's course.
n.
The act of redressing; redress.
n.
Castigation; scolding; -- often with down.
n.
A dressing table.
n.
The stuffing of fowls, pigs, etc.; forcemeat.
n.
The act of rubbing, smoothing, or dressing; a dressing off smooth with an adz.
p. pr. & vb. n.
of Address
a.
Not sensuous; not pertaining to, affecting, or addressing, the senses.
n.
Gum, starch, and the like, used in stiffening or finishing silk, linen, and other fabrics.
n.
Act or mode of dressing, or that which is arranged in dressing; attire; dress; as, her toilet is perfect.
n.
The act or manner of speaking to, or of addressing in words.
p. pr. & vb. n.
of Aggress
n.
The act of applying a dressing of manure to the surface of land; also, manure so applied.
n.
An ornamental finish, as a molding around doors, windows, or on a ceiling, etc.
n.
Manure or compost over land. When it remains on the surface, it is called a top-dressing.
v. t.
Act of addressing one's self to a person; verbal application.