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Topic: Instruction pointer

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	Methods and apparatus for determining the next instruction pointer in an out-of-order execution computer system - US ... (Site not responding. Last check: 2007-10-21)
		However, a processor that implements concurrent instruction retirement pipeline also creates further complications for solving the speculativeness and out-of-order generation of the result data for determining the next instruction pointer and enforcing an instruction pointer limit, because the result data of varying number of executed instructions are retired or committed during each retirement operation.
		The instruction fetch and micro-op issue circuit 32 generates the macro instruction pointer delta value for a logical micro-op to indicates the length in bytes of the corresponding macro instruction.
		The IPDELTA is a macro instruction pointer delta value that indicates the byte length of the macro instruction that generated the physical micro-op allocated to the corresponding ROB entry.
	www.patentstorm.us /patents/5463745.html (14312 words)

	Instruction pointer limits in processor that performs speculative out-of-order instruction execution - Patent 5740393
		A method for enforcing an instruction pointer limit in a processor, wherein a retire circuit determines a speculative instruction pointer for a set of retiring instruction during a retirement operation.
		The instruction pointer logic circuit 100 receives the lower 32 bits of a result data value, an instruction pointer delta value, and a branch flag from the fault data field for each of the retiring ROB entries over a portion 172 of the retirement bus 170.
		The instruction pointer logic circuit 100 determines an updated instruction pointer value for a retiring micro-op by selecting the corresponding lower 32 bits of the result data value as the updated current instruction pointer delta value if the retiring micro-op has a branch flag indicating a branch instruction.
	www.freepatentsonline.com /5740393.html (14242 words)

	Superscalar execution unit for sequential instruction pointer updates and segment limit checks - Patent 5590351
		The sequential instruction pointer execution unit of claim 1, wherein said instruction length values are of variable length.
		Conventionally, instructions fetched from the predicted direction (either taken or not-taken) of a branch are not allowed to modify the state of the machine unit the branch direction is resolved.
		Instructions in the architecture implemented are of variable length, being from one to fifteen bytes.
	www.freepatentsonline.com /5590351.html (13612 words)

	Project Overview
		Any instructions necessary to initialize the variable are generated at this time as these statements must be the first ones executed by the interpreter.
		A flow of control instruction will cause the instruction pointer to be moved to an instruction other than the next one in the list.
		An instruction can be a label on a line by itself, a label followed by an opcode and its operands, or simply an opcode and its operands.
	www.cs.vassar.edu /~cs235/Project (1662 words)

	R.O.M.E.68000 Manual: III.7: The Instruction Pointer
		The instruction pointer appears as an implicit operand in many instructions: first of all, it is used implicitly in all jump instructions, both conditional and unconditional, but besides these it is also involved in all those instructions that can perform a conditional (or even unconditional) skip.
		When the instruction is being executed, hence, the IP is already pointing to the next instruction to execute, as said; if the current instruction does not alter it, this will be the instruction that will be fetched on the next cycle.
		22, in which the case of a jump instruction is depicted, the first two stages are the same as in the previous case, but before the instruction is completed a new value is loaded into the instruction pointer, to make it point to the target of the jump.
	www.math.unipd.it /~mezzetti/ROME68000/Manual/Tome3/Section-III-7.html (615 words)

	L33t programming language - Wikipedia, the free encyclopedia
		The language utilises a 64K block of memory, and 2 pointers - a memory pointer and an instruction pointer.
		It is legal to move the memory pointer into the area of memory occupied by the instructions, so code can be self modified at runtime.
		In all cases, the memory and instruction pointers should be data types large enough to cope with accessing all locations within the memory block (i.e.
	en.wikipedia.org /wiki/L33t_programming_language (1420 words)

	[No title]
		These are stored consecutively from the start of the array, except that the simulated instruction pointer is represented as a pair of zeroes just to the left of the next instruction to execute; so initially it is at the far left, before any coded instructions.
		Throughout the explanation, the simulated instruction pointer and the simulated data pointer are called the simulated IP and the simulated pointer; the pointer, with no adjective, means the real data pointer.
		Each case also leaves the pointer where it would have been had the instruction code been 9 -- that is, just far enough right to skip the subsequent cases -- except three cases that transfer control to later cases as a shortcut.
	www.hevanet.com /cristofd/08.html (4551 words)

	Encyclopedia: X86
		There are 2 pointer registers (SP which points to the bottom of the stack, and BP which can be used to point at some other place in the stack or the memory).
		Unfortunately, these instructions were not easily mappable to the code generated by ordinary C compilers, and Microsoft, the dominant compiler vendor, was slow to support them even as intrinsics.
		The SSE3 instruction set included on the new Athlons are only lacking a couple of the instructions that Intel designed for HyperThreading, since the Athlon 64 doesn't support HyperThreading; however SSE3 is still recognized in software as being supported on the platform.
	www.nationmaster.com /encyclopedia/X86 (5409 words)

	Kernel Debugging: "Parity Error: Bad Instruction Pointer"
		Breakdown of the Instruction at 801144dd and Opcode
		The instruction pointer in EIP was altered by one bit.
		The new instruction 0083f810760b is an add-byte register to memory byte.
	support.microsoft.com /kb/149015/EN-US (541 words)

	r_harvey - 8086 Processor Registers
		pointers are assumed to be relative to the
		The instruction pointer is the memory address of the next instruction the processor will load and execute.
		One way to read the IP register is with a near call instruction, which places the value of the instruction pointer on the stack.
	ourworld.compuserve.com /homepages/r_harvey/doc_cpu.htm (3506 words)

	The Instruction set (Site not responding. Last check: 2007-10-21)
		If found, push the current instruction pointer onto the stack, and set the instruction pointer to the instruction following the found template complement.
		Set the instruction pointer to the address from the stack.
		Instruction pointer of the daughter is set to its first instruction.
	people.netscape.com /sfraser/tierra/instset.html (601 words)

	Instruction pointer: Definition and Links by Encyclopedian.com - All about Instruction pointer
		Instruction pointer: Definition and Links by Encyclopedian.com - All about Instruction pointer
		The instruction pointer is a register in a computer processor holding the address of the instruction being executed.
		In most processors, the instruction pointer is incremented before the instruction is executed; this means that the target address of a branch instruction is obtained by adding the operand to the address of the next byte after the branch instruction.
	www.encyclopedian.com /in/Instruction-pointer.html (89 words)

	PCWorld.com - How It Works: CPUs
		The instruction pointer tells the CPU where in memory the instruction it needs to run is located.
		The fetch grabs the instruction and hands it to the instruction decoder, which examines the instruction and determines what steps are necessary to accomplish that instruction.
		Once an instruction has moved from the first step to the second step, the transistors that performed the first step are free to start working on the next instruction, therefore speeding up the process.
	www.pcworld.com /howto/article.asp?aid=16682&pg=2 (1652 words)

	Instruction pointer at opensource encyclopedia (Site not responding. Last check: 2007-10-21)
		The instruction pointer (also called the program counter in some computers) is a register in a computer processor which indicates where the computer is in its instructions.
		In most processors, the instruction pointer is incremented before the instruction is executed; this means that the target address of a branch instruction is obtained by adding the branch instruction's operand to the address of the next location (byte or word, depending on the computer type) after the branch instruction.
		"Instruction pointer" in world wide web people finder »
	wiki.tatet.com /Program_counter.html (165 words)

	Instruction Pointer (Site not responding. Last check: 2007-10-21)
		CPU also has another register that contains the address of the next instruction in memory to execute.
		Instruction - meaning a compiled or machine language instruction.
		IP is maintained and managed by the CPU and is also "transparent" to C++ programmer.
	www.kean.edu /~ayorinks/lectures/lect1/text8.htm (65 words)

	LinuxQuestions.org - How to find out the instruction pointer of a process? - where Linux users come for help (Site not responding. Last check: 2007-10-21)
		How to find out the instruction pointer of a process?
		How can I find out current IP (instruction pointer) of any process running in the background (without debugger)?
		For example, if a process sleeps in some syscall for rather long time, I want to know where exactly was it stopped.
	64.179.4.149 /questions/history/246337 (258 words)

	Linux Kernel Mailing List -- [Question] How get instruction pointer of user space ??? (Site not responding. Last check: 2007-10-21)
		Hi everyone: I am implemnting one ioctl() in one character device.
		That need know instruction pointer of user space.
		Next by thread: Re: [Question] How get instruction pointer of user space ???
	www.spinics.net /lists/kernel/msg392598.html (259 words)

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	SitStayFetch.net (3326 words)

	Windows Programming: Accessing program counter / instruction pointer
		Solution Title: Accessing program counter / instruction pointer
		How does one transfer the program counter / instruction pointer to a variable in C++?
		Sorry again, the code above returns not the address of the function itself, but the address of jmp instruction that points to this function.
	www.experts-exchange.com /Programming/Programming_Platforms/Win_Prog/Q_10226768.html (569 words)

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