Is 8087 a coprocessor?
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.
What are the instructions available in 8087?
There are four types of 8087 instructions: the CORE set, the EXTENDED set, the SPECIAL FUNCTION set and the ADMINISTRATIVE set. The core set in- cludes load and store of the stack values and a- rithmetic operators: add, subtract, multiply, di- vide and compare.
Which instruction is used for comparison in 8087?
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.
Why 8087 is referred to as coprocessor?
i) Because 8087 is used in parallel with main processor in a system, rather thanserving as a main processor itself. ii) Because 8087 is used in serial with main processor in a system, rather thanserving as a main processor itself.
Does 8087 has a separate data segment?
Explanation: The 8087 is divided into two sections namely control unit and numeric extension unit in which the numeric extension unit executes all the numeric processor instructions.
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 of the following is a coprocessor?
Explanation: 8087 is a coprocessor which can perform all the mathematical functions including addition, subtraction, multiplication, division, exponential, logarithmic, trigonometric etc. 8086, 8080 and 8088 are microprocessors which require the help of a coprocessor for floating point arithmetic.
Which can be used as coprocessor with 8086 microprocessor?
Explanation: 8087 is the coprocessor for both 8086 and 8088. 8089 is also a coprocessor of 8086 and 80888.
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 the following are the important block of 8087?
Explanation: The 8087 is divided into two sections namely control unit and numeric extension unit in which the numeric extension unit executes all the numeric processor instructions. Explanation: The control unit receives, decodes the instructions, and executes the 8087 control instructions.
Which microprocessor should be paired with 8087?
The Intel 8087 was first math co-processor suited for operations of 16 bit. It was built to be paired with the Intel 8086 Microprocessor. Its main purpose was to decrease time required by the applications to give output (that require high floating point computations).
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.