Types of memory addressing modes?
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Addressing modes, a concept from computer science, are an aspect of the instruction set architecture in most central processing unit (CPU) designs. The various addressing modes that are defined in a given instruction set architecture define how machine language instructions in that architecture identify the operand (or operands) 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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The size of the stack, and all other mapped segments in\nmemory is tracked by the /proc pseudo-filesystem.  You\ncan read this info directly from /proc/<pid>/maps or\nget a slightly augmented version from /usr/bin/pmap.\n\nFor example:\n\n$ /usr/bin/pmap 12028 | grep stack\n7fbfffd000       12K rwxp [ stack ]\n\nshows that process 12028 has a 12K stack segment\nstarting at address 7fbfffd000.
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various components.. like chips memory and such
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direct addressing (which means specifying the effective address within the assembly instruction) is pretty limited - it means that you have to know the absolute address when you write the code, which is at most times impractical since programs and their data are loaded into a different addresses in memory each time they are loaded. \n\nindirect addressing (which means that the effective address is stored in a register and the assembly instruction points to that register) is much more useful - for example when a subroutine is called, the caller may store the return address in a register, and when the subroutine finishes, it jumps to that return address using indirect addressing.
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PEEK read a 8bit value from any memory address\ninteger_variable = PEEK(address)\n\nPOKE write a 8bit value to a memory address (not all addresses may be written!)\nPOKE address, value
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Assuming C++, the address in memory of p... More specifically, the starting of the character array...
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Most memory sites recommend if you are installing memory with different MB ratings (512, 256, 128, etc.) the largest should go in slot # 1, the next largest in slot # 2, etc.
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Why are you passing large amounts of data between programs?\n\nIt would be better to pass a pointer to the working storage location.\nYou may have to call another program to get the address of the storage.
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Single-rank memory modules are built using x4 DRAM chips and are more expensive than dual-rank memory modules which are built using x8 DRAM chips. Dual-rank memory modules may limit upgradeability and capacity of servers.\nSingle-sided modules are always single-rank. Double-sided unbuffered DIMMs and SODIMMs are always dual-rank. Registered (ECC DIMMs) RAM vary from a single-rank to up to four ranks.\n\nFor further reference use the below information\n\n- Single-sided: with all the memory chips on both sides representing a single 64-bit wide + 8Bit ECC area\n- Dual-rank: one rank per side\n- Quad-rank: two ranks per side for a total of 4 ranks
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Simply stated, dual-channel memory architecture splits the available RAM into two data channels, resulting in a bandwidth, or data-transfer rate, that's double that of a single-channel system.\n\nDual-channel mode requires that you install identical or "matched" RAM modules. Matched modules have the same physical number of chips in the same physical configuration. Physically dissimilar modules, even of the same capacity, may not work as well. You also need to insert the modules in specific slots. If you have four slots, for instance, you'll need to insert the matched modules in the first and third or second and fourth slots.\nIf you want to double-check whether your memory configuration is indeed running in dual-channel mode, Memtest86+ ("http://www.memtest.org/#downiso") reports this information.
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It almost sounds as if your project is going to eventually become a "virtual machine", or better yet a simulated computer.\n\nThe first step is to determine your instruction set.  The computer will probably have the ability to perform simple arithmetic, such as add, subtract, multiply, divide, shift, jump to memory locations, etc.  Each of these operations will use a unique sequence of 'bits' to identify the specific operation.  For example, you can say that your machine only supports only sixteen instructions.  Because it is sixteen, we can identify each instructions with four bits:\n\nMOV   0000 - move data\nADD   0001 - add data\nSUB   0010 - subtract data\nMPY   0011 - multiply data\nDIV   0100 - divide data\nAND   0101 - bitwise 'and'\nOR    0110 - bitwise 'or'\nXOR   0111 - bitwise 'exclusive or'\nNOT   1000 - invert bits\nJMP   1001 - unconditional jump\nCMP   1010 - compare values\nJEQ   1011 - jump if equal\nJL    1100 - jump if less than\nJG    1101 - jump if greater than\nJLE   1110 - jump if less or equal\nJGE   1111 - jump if greater or equal\n\nOnce you determine the instructions the computer will support, you need to determine your addressing modes.  For example, an "add" instruction can work with two registers, two memory addresses, a memory address and a register, or indirect combinations of both.  For each addressing mode, we will assign a sequence of bits.  I'm going to choose only four addressing modes, "immediate" (where the data in the instruction is taken as a literal value), "memory" (where the data in the instruction is a memory address), "register" (where the data in the instruction is a register number) and "indirect" (where the value in a register is a memory address to where the data points).  I will use two bits to identify the source addressing mode, an another two bits to identify the destination addressing mode.  If the instruction only uses one destination, the second two bits would be used.  This is now a total of four bits which we combine with the first four bits of the opcode.  Below are the bits we will use for the modes:\n\nImmediate - 00\nRegister - 01\nMemory - 10\nIndirect Register - 11\n\nNow, we have defined a fairly competent instruction set that identifies the operations and addressing modes with only one byte of data!\n\nJust to show "mnemonics" of the assembly language of our computer, with addressing modes, consider the following:\n\nADD 10, R2 - Add number 10 to register 2 (immediate/register)\n\nADD R1, R2  - Add register 1 to register 2 (register/register)\n\nADD @MEM1, R2 - Add value in memory at MEM1 to register 2 (memory/register)\n\nADD *R1, R2 - Add value pointed to by address in register 1 to register 2 (indirect/register)\n\nNow, they would equate, in bits to the following:\nADD 10, R2      0001 00 01  (11 in hexadecimal)\nADD R1, R2      0001 01 01  (15 in hexadecimal)\nADD @MEM1, R2   0001 10 01  (19 in hexadecimal)\nADD *R1, R2     0001 11 01  (1D in hexadecimal)\n\nNote that each instruction and addressing mode is one byte, but only part of the complete instruction.  You can use the bitwise and (&) operator in C++ in order to mask off the opcode and addressing modes from that single byte (unsigned char).  So:\n\nopcode = byte & 0xF0;       (1111 0000)\nsourcemode = byte & 0xC0;   (0000 1100)\ndestmode = byte & 0x03;     (0000 0011)\n\nOnce we've determine the addressing mode for each one, the next sequence of bytes after the opcode and mode would be either the immediate value, a register value or a memory address.  The remainder of each instruction can be either a fixed or variable number of bytes, that is your choice.\n\nFrom there, you just process a stream of bytes and you can get the extract the operation, addressing mode, data for source and destination (or just destination if its a single operand).  Next, your "virtual machine" needs to sim
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To test the ram, start by only using one RAM module at a time and test it that way.\nAlso try a program called "MEMTEST"\nhttp://www.memtest86.com/
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Those are memory addresses. that means your RAM is bad most likely. 90% i would say
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DIP (Dual In-line Package)\nSIMM (various pins)\nDIMM (various pins)\nSO DIMM\nIC DRAM Card\nPC Card\nFlash Card\nSDRAM\nSD card\n\nand my favorite.... Dodge RAM
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2 x 184-pin DDR DIMM sockets\n\nSupport up to maximum 2 GB memory (PC manufacturer's maximum memory may differ)\n\nSupports unbuffered PC2700/2100 non-ECC DDR SDRAM memory
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Are you referring to Virtual Storage (Also called Virtual Memory)?\n\nVirtual memory or virtual memory addressing is a memory management technique, used by multitasking computer operating systems wherein non-contiguous memory is presented to a software application as contiguous memory. The contiguous memory is referred to as the virtual address space.  The vitual address space is typically 4-10 times the size of the actual physical memory.\n\nThe term "virtual memory" often involves the use of "memory swapping" (or "page/swap file" use).\n\nIn technical terms, virtual memory allows software to run in a memory address space whose size and addressing are not necessarily tied to the computer's physical memory.
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the DIMMS are silicone chips attached to a printed circuit board.\nSoDIMs are the same, just a different shape (generally for laptop use).\nThe only way to tweak your memory speed is by altering the motherboard controls, NOT the RAM chips themselves.\nDIMMS do not have a writeable EPROM.\nYou can buy faster RAM cheaper than you can reengineer existing chips.