Definition of binary storage and registers


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Views Read Edit View history. In other projects Wikimedia Commons. This page was last edited on 4 April , at By using this site, you agree to the Terms of Use and Privacy Policy. Addresses can be memory direct or indirect for pointers relative to the stack pointer without extra instructions or operand bits. Scalar data registers can be integer or floating-point; also 64 scalar scratch-pad T registers and 64 address scratch-pad B registers.

There is no FP unit available. Plus a stack pointer. They were also readily usable with the Z80 and similar processors. The iAPX was referred to as a micromainframe, designed to be programmed entirely in high-level languages.

The instruction set architecture was also entirely new and a significant departure from Intel's previous and processors as the iAPX programming model was a stack machine with no visible general-purpose registers.

It supported object-oriented programming, garbage collection and multitasking as well as more conventional memory management directly in hardware and microcode. Direct support for various data structures was also intended to allow modern operating systems to be implemented using far less program code than for ordinary processors.

Like Transmeta , the processor had a translation layer that translated x86 code to native code and executed it.

A bit wide, bit address space stack machine processor that made from Taiwanese semiconductor called "Sunplus", it can be found on Vtech's v'smile line for educational purpose and video game console like Mattel hyperscan, XaviXPORT. The design was heavy influence by Intel's MMX technology, it contained a bytes unified stack cache for both vector and scalar instructions.

Nios II [13] [14]. Address register 8 a7 is the stack pointer. FP registers are bit. The Emotion Engine's main core contains 32 entries bit general-purpose registers for integer computation and 32 entries bit SIMD registers for storing SIMD instruction, streaming data value and some integer calculation value.

The coprocessor is built via 32 entries bit vector register file can only store vector value that pass from accumulator in cpu. In cases where the parallel outputs should not change during the serial loading process, it is desirable to use a latched or buffered output.

In a latched shift register such as the the serial data is first loaded into an internal buffer register, then upon receipt of a load signal the state of the buffer register is copied into a set of output registers. This configuration has the data input on lines D1 through D4 in parallel format, D1 being the most significant bit.

However, as long as the number of clock cycles is not more than the length of the data-string, the Data Output, Q, will be the parallel data read off in order. One of the most common uses of a shift register is to convert between serial and parallel interfaces. This is useful as many circuits work on groups of bits in parallel, but serial interfaces are simpler to construct.

Shift registers can be used as simple delay circuits. Several bidirectional shift registers could also be connected in parallel for a hardware implementation of a stack. Similarly, PISO configurations are commonly used to add more binary inputs to a microprocessor than are available - each binary input i.

Shift registers can also be used as pulse extenders. Compared to monostable multivibrators, the timing has no dependency on component values, however, it requires external clock and the timing accuracy is limited by a granularity of this clock.

Ronja Twister , where five shift registers create the core of the timing logic this way schematic. In early computers, shift registers were used to handle data processing: Many computer languages include instructions to 'shift right' and 'shift left' the data in a register, effectively dividing by two or multiplying by two for each place shifted. Very large serial-in serial-out shift registers thousands of bits in size were used in a similar manner to the earlier delay line memory in some devices built in the early s.

Such memories were sometimes called circulating memory. For example, the Datapoint terminal stored its display of 25 rows of 72 columns of upper-case characters using fifty-four bit shift registers, arranged in six tracks of nine packs each, providing storage for six-bit characters. The shift register design meant that scrolling the terminal display could be accomplished by simply pausing the display output to skip one line of characters.

One of the first known examples of a shift register was in the Mark 2 Colossus , a code-breaking machine built in It was a six-stage device built of vacuum tubes and thyratrons. From Wikipedia, the free encyclopedia. RC4 block ciphers in stream mode ChaCha. Retrieved from " https: Digital registers Computer memory. Wikipedia articles with GND identifiers. Views Read Edit View history. In other projects Wikimedia Commons.