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	Memory address register - Wikipedia, the free encyclopedia
		The memory address register is the register of a computer's control unit that contains the address of a register to fetch or store from or to the computer storage.
		The memory address register is half of a minimal interface between a microprogram and computer storage.
		The other half is a memory data register.
	www.wikipedia.org /wiki/Memory_address_register (119 words)

	Data processing system including an LSI chip containing a memory and its own address register - United States Patent ...
		Address 12, which is assigned to memory cell V, indicates that indirect addressing of a memory cell is to be effected from address registers 111 and 112.
		Address 13, which is assigned to memory cell W, indicated indirect addressing and subsequent modification of the contents of the address register 112 by downward counting.
		The memory cells X and Y of the read/write memory 110 serve to indirectly address are read-out memory, a read/write memory or the peripheral modules of further chips.
	xrint.com /patents/us/3975714 (8431 words)

	EE-336 Computer Design Considerations (Site not responding. Last check: 2007-10-15)
		By setting a base address and causing operations to occur relative to that base register, a wide range of memory can be accessed with a small bit count in the memory address register.
		One application of high and low memory system was to set the desired light values in high memory for a desired initial condition and the present state of the lights was computed in low memory.
		Index registers are used to modify address by adding the value in the index register to the address register.
	uhaweb.hartford.edu /BROCKETT/re.html (467 words)

	Instruction Execution Cycle (Site not responding. Last check: 2007-10-15)
		A register located on the central processing unit which is in turn connected to the address lines of the system.
		The main purpose of this register is to act as an interface between the central processing unit and memory.
		When the appropriate signal is received by the control unit, the memory location stored in the memory address register is used to copy data from or to the memory buffer register.
	www.infocom.cqu.edu.au /Units/win2000/85349/Assessment/Past_Assignments/jonatha1 (2230 words)

	Memory data register - Wikipedia, the free encyclopedia
		The memory data register (MDR) is the register of a computer's control unit that contains the contents of a register to fetch or store from or to the computer storage.
		The memory data register is half of a minimal interface between a microprogram and computer storage.
		The other half is a memory address register.
	en.wikipedia.org /wiki/Memory_data_register (120 words)

	Learn more about Microprogram in the online encyclopedia. (Site not responding. Last check: 2007-10-15)
		A register set is a fast memory containing the data of the central processing unit.
		There may also be a memory address register and a memory data register, used to access the main computer storage.
		This instruction fetches # the target address of the jump instruction from the memory word following the # jump opcode, by copying from the memory data register to the memory address register.
	www.onlineencyclopedia.org /m/mi/microprogram.html (1090 words)

	MEMORY MANAGEMENT
		An address generated by the CPU is commonly referred to as a logical address, whereas an address seen by the memory unit (that is, the one loaded into the memory address register of the memory) is commonly referred to as physical address.
		The set of all logical addresses generated by a program is referred to as a logical address space; the set of all physical addresses corresponding to these logical addresses is referred to as a physical address space.
		Memory is allocated to the processes until, finally, the memory requirements of the next process cannot be satisfied; no available block of memory (hole) is large enough to hold that process.
	emhain.wit.ie /~boneill/webpg.htm (5689 words)

	Interface between a microprocessor and a coprocessor - Patent 4547849
		A memory address register containing an address therein corresponding to a main memory address is connected to the address bus.
		The channel memory address register (401) and the channel address limit register (471) are compared in comparison logic (473) and a MATH address error trap is generated if the address and limit are equal or if the limit is exactly one count higher than the address.
		The memory address register is incremented by one.
	www.freepatentsonline.com /4547849.html (12318 words)

	Disk controller memory address register - Patent 4747038
		A disk controller address register is used to address both a disk controller memory and a system memory between which data is transferred as it is stored on or retrieved from a disk storage device.
		Main memory 4 signals disk controller 3 that the data word is available on data bus 8 via a second half bus cycle signal SHBC, a control bus 7, bus interface logic 9 and an acknowledge signal ACK which clocks the data word into data input register A 16 and data input register B 18.
		For the main memory 4 to data RAM 20 operation, address register 10 stores the address location of the two data bytes in main memory 4 which are to be stored in the same designated address locations in data RAM 20.
	www.freepatentsonline.com /4747038.html (4058 words)

	Data processing system having a CPU register file and a memory address register separate therefrom - Patent 4133028
		The output of the arithmetic-logic unit is connected to the memory address register and to a shifter unit, the shifted output thereupon being connected to the second write port of the register file.
		Further, in the register file, the register previously used for memory addresses thereby becomes available for other uses so that together with the two temporary registers available in the previously described system, three such registers are now available for use to provide for the implementation of a greater number of processing instructions.
		The output of the ALU 23 is appropriately fed to a shifter unit 26, the output of which is fixedly connected to the 2W port of the register file 20, and to the memory address register 21.
	www.freepatentsonline.com /4133028.html (3030 words)

	22C:122/55:132, Midterm Study, Spring 2003
		The VAX instruction set, with all of its addressing modes, would have been easier to implement and easier to use if, instead of having a fixed set of addressing modes, it had "an addressing sub-instruction-set" that was similar in generality to the addressing possibilities offered by high level languages.
		The contents of the memory location addressed by the memory address register are fetched into source1; the old contents of source 1 are moved to source2; the memory address register is incremented by the size of the operand.
		The memory address register is incremented by the size of the operand.
	www.cs.uiowa.edu /~jones/arch/spring03/hw/midstud.html (714 words)

	Solution to Test 4 (Site not responding. Last check: 2007-10-15)
		Set the memory address register to point to the address second to top of the stack, then fetch the item that is stored there (item will arrive at end of swap2).
		Now adjust the memory address register to point to the address of the top of the stack, ready to write the element currently second to top of stack.
		Also, move it to the H register temporarily so that the MDR can be used for the element at the top of the stack (next statement).
	www.vuse.vanderbilt.edu /~srs/cs231/sol4.html (494 words)

	Computer Vocabulary (Site not responding. Last check: 2007-10-15)
		The memory is a large indexed set of memory cells.
		This CPU register keeps track of the memory address of the next machine language instruction for the CPU to read and execute.
		This CPU register keeps track of the currently active position in something called the "Stack" which is used to manage communication between algorithms.
	core.ecu.edu /csci/wirthj/ECTC/compVocab-e.html (594 words)

	General purpose memory access scheme using register-indirect mode (US5367648)
		During memory access operations, the MAR is accessed for the memory addresses to access a memory.
		In a second approach, use of the MAR during the memory access operations is transparent.
		(4) means coupled to said arithmetic-logic means for writing back said memory addresses to said first registers during said memory address generation operations, and for storing said memory addresses in said second register during said memory address generation operations when said second register is explicitly specified in said user-associated instructions.
	www.delphion.com /details?&pn=US05367648__ (561 words)

	Read/Write Memory (Site not responding. Last check: 2007-10-15)
		Read/write memory (RWM) can be thought of as a collection of registers, each with its own address known as a memory address.
		The MAR holds the address of the memory desired by the processor.
		These two lines denote a process where the A register is loaded with zero in one processing cycle, then the M register is loaded with the data on the inbus during the next processing cycle.
	www.unf.edu /~swarde/Control_Units/Read_Write_Memory/read_write_memory.html (351 words)

	The Central Processing Unit (CPU) (Site not responding. Last check: 2007-10-15)
		The MAR is a register which is used as a gateway - a `buffer' - onto the address bus.
		The memory is considered to be a collection of cells or locations, each of which can be addressed individually, and thus written to or read from.
		For brevity, we shall refer to this memory `array' as M and the address of a general cell as x and so, the contents of the cell at address x as M[x], or m[x].
	www.engr.udayton.edu /faculty/jloomis/ece314/notes/carch/node6.html (3638 words)

	Encyclopedia: Memory address register
		FACTOID # 2: Andorra has no unemployment, which is just as well because they have no broadcast TV channels either.
		In computer architecture, a processor register is a small amount of very fast computer memory used to speed the execution of computer programs by providing quick access to commonly used values—typically, the values being in the midst of a calculation at a given point in time.
		The memory data register is the register of a computers control unit that contains the contents of a register to fetch or store from or to the computer storage.
	www.nationmaster.com /encyclopedia/Memory-address-register (398 words)

	Address register
		Below is a listing of different types of address registers.
		MAR is short for Memory Address Register, MAR is a parallel load register that contains the memory address to be manipulated next.
		For example, the next address to be read or written too.
	www.computerhope.com /jargon/a/addressr.htm (65 words)

	Memory Management (Site not responding. Last check: 2007-10-15)
		For most processes, memory use is fixed at compile time, the exception being, recursion and dynamic data structures.
		In single partition allocation there is a single user space memory partition protected with relocation and limit registers.
		If a computer has 1M of memory, with the OS requiring 200K, and each user program 200K and an average of 80% average I/O wait, what is the CPU utilization (ignore the OS overhead).
	cs.wwc.edu /~aabyan/352/MemoryMangement.html (832 words)

	Week 1 Solutions
		The address in memory to read from is placed in the MAR (Memory Address Register).
		The address in memory to write data to is placed in the MAR (Memory Address Register).
		A.16 The registers must be at least 16 bits in size.
	www.csis.ul.ie /Modules/CS5211/questions/week4A.htm (285 words)

	The page cannot be found (Site not responding. Last check: 2007-10-15)
		The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.
		Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly.
		If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted.
	www.absoluteastronomy.com /encyclopedia/m/me/memory_address_register.htm (121 words)

	Pyxis Memory Error Address Register Bit Descriptions (Site not responding. Last check: 2007-10-15)
		The low-order address bits of the Memory Port Address bus are locked into this register when a PYXIS-detected error occurs.
		When the register is not locked, the contents of this register are not defined.
		<31:4>RO Contains the current address in the Memory Port when the PYXIS detects an error.
	pauillac.inria.fr /~harley/pws/service/reg_pmar.htm (61 words)

	MAR - Memory Address Register
		Searched for more definitions; no definitions of MAR found.
		Every attempt has been made to provide you with the correct acronym for MAR. If we missed the mark, we would greatly appreciate your help by entering the correct or alternate meaning in the box below.
		Definitions have been compiled from popular search engines and multiple results provided for your review.
	www.auditmypc.com /acronym/MAR.asp (82 words)

	Learn more about Memory address register in the online encyclopedia. (Site not responding. Last check: 2007-10-15)
		Learn more about Memory address register in the online encyclopedia.
		You are here: Online Encyclopedia > Memory address register
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	www.onlineencyclopedia.org /m/me/memory_address_register.html (168 words)

	Address Register Memory-Reference Instructions (Site not responding. Last check: 2007-10-15)
		The LBRA instruction, as well as the LSBA, LPBSA, and LASBA instructions, instead of inspecting the contents of the location it refers to, merely places its address in the base register whose number is indicated by the dR field.
		The modular polynomial, except for its last bit, which must be a 1, is taken from the register following the destination register.
		In the case of the GFML instruction, the following register pair is used, and the destination must be either register 0 or register 4.
	www.quadibloc.com /arch/ar020301.htm (227 words)

	Block Transfer instructions terminating on SS=2 (Site not responding. Last check: 2007-10-15)
		Upon receipt of SS=2, the SSP stores the updated NTA at DM 4 and continues on to the next instruction.
		The address contained in the MAR (DM 4) points to the location where the last data would have been stored had SS=0.
		Any SS response besides 0 or 2 will generate an I/O-Error.
	sundae.triumf.ca /pub2/SSP/subsubsection3_5_37_2.html (105 words)

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