Admin Table of Contents
- 1 What are the different data types of 8087?
- 2 Which of them are valid data formats in 8087?
- 3 Why do we use 8087?
- 4 How many pins does 8087 have?
- 5 How many instructions are there in 8087?
- 6 How many stack register does an 8087 have?
- 7 What are the most prominent features of 8087 numeric data processor?
- 8 What is 8087 architecture?
What are the different data types of 8087?
The standard specifies and the 8087 supports three floating-point data types: Real (single precision), Long Real (double precision) and Tem- porary Real (extended precision). All formats are binary and each has a biased exponent.
What data types are supported by 80387?
All 80387 floating point types except packed BCD are supported. (BCD support may be added without much difficulty). These data types are 16-, 32-, and 64- bit integers, and single (32-bit), double (64-bit), and extended (80-bit) precision floating point.
Which of them are valid data formats in 8087?
The 8087 supports integer, floating point and BCD data formats, and fully conforms to the ANSI/IEEE floating point standard.
What is the size of data register in 8087?
80 bit
8087 has eight 80 bit numeric data registers available to the programmer. These registers operate in LIFO (Last in First Out) manner hence they are called as the register stack of 8087. Each register is 80 bits as the data is stored internally in the temporary-real format.
Why do we use 8087?
The Intel 8087, announced in 1980, was the first x87 floating-point coprocessor for the 8086 line of microprocessors. The purpose of the 8087 was to speed up computations for floating-point arithmetic, such as addition, subtraction, multiplication, division, and square root.
Which instruction is used for comparison in 8087?
ESC
8087 treats 8086 instructions as NOP. ESC is used as a prefix for 8087 instructions. When as instruction with ESC prefix (5 MSB bits as 11011) is encountered, 8087 is activated. The ESC instruction is decoded by both 8086 and 8087.
How many pins does 8087 have?
40 pin
How many pins does 8087 have? Explanation: All 8087 models have a 40 pin DIP which is operated in 5V. 11.
How many instructions are available in 8087?
It worked in tandem with the 8086 or 8088 and introduced about 60 new instructions. Most 8087 assembly mnemonics begin with F, such as FADD, FMUL, FCOM and so on, making them easily distinguishable from 8086 instructions….Models and second sources.
| Model number | Frequency |
|---|---|
| Intel 8087-6 | 6 MHz |
How many instructions are there in 8087?
How many types of interfacing are there?
In general, interfacing comes in two main types, fusible or sew-in, as well as three main weaves (non-woven, woven and knit), and different weights. When designing your piece, it is important to make the right choice, as this decision can really influence the final look of your garment.
How many stack register does an 8087 have?
How many stack register does an 8087 have? Solution: Explanation: The 8087 coprocessor does not have a main register set but they have an 8-level deep stack register from st0 to st7.
Which pin belongs to the 8087 coprocessor?
RQ/GT1 of 8086. BUSY signal 8087 is connected to TEST pin of 8086.
What are the most prominent features of 8087 numeric data processor?
The most prominent features of 8087 numeric data processor are as follows − It supports data of type integer, float, and real types ranging from 2-10 bytes. The processing speed is so high that it can calculate multiplication of two 64-bits real numbers in ~27 µs and can also calculate square-root in ~35 µs.
What are the 8086/8088 addressing modes used for?
All 8086/8088 addressing modes may be used to access memory-based 8087 operands, enabling convenient processing of numeric arrays, structures, based variables, etc. Table S-3. Principal Instructions Class Instructions Data Transfer Load (all data types), Store (all data types), Exchange Arithmetic Add, Subtract]
What is 8087 architecture?
8087 Architecture is divided into two groups, i.e., Control Unit (CU) and Numeric Extension Unit (NEU). The control unit handles all the communication between the processor and the memory such as it receives and decodes instructions, reads and writes memory operands, maintains parallel queue, etc.
What is 8087 S1 Processor?
1 S.1 Processor Overview. The 8087 Numeric Data Processor is a coprocessor that performs arithmetic and comparison operations on a variety of numeric data types; it also executes numerous built-in transcendental 2 Evolution. 3 Performance. 4 Usability. 5 Programming Interface.