Rochester Electronics LD8087

The 8087 Math CoProcessor's architecture is designed for high performance numeric computing in conjunction with general purpose processing. The 8087 is a numeric processor extension that provides arithmetic and logical instruction support for a variety of numeric data types. It also executes numerous built-in transcendental functions (e.g., tangent and log functions). The 8087 executes instructions as a coprocessor to a maximum mode CPU. It effectively extends the register and instruction set of the system and adds several new data types as well. The 8087 is treated as an extension to the CPU, providing register, data types, control, and instruction capabilities at the hardware level. At the programmer's level the CPU and the 8087 are viewed as a single unified processor.

• Adds Arithmetic, Trigonometric, Exponential, and Logarithmic Instructions to the Standard 8086/8088 and 80186/80188 Instruction Set for All Data Types
• CPU/8087 Supports 7 Data Types: 16-, 32-, 64-Bit Integers, 32-, 64-, 80-Bit Floating Point, and 18-Digit BCD Operands
• Compatible with IEEE Floating Point Standard 754
• Available in 5 MHz (8087), 8 MHz (8087 - 2) and 10 MHz (8087 - 1): 8 MHz 80186/80188 System Operation Supported with the 8087 - 1
• Adds 8 x 80-Bit Individually Addressable Register Stack to the 8086/8088 and 80186/80188 Architecture
• 7 Built-in Exception Handling Functions
• MULTIBUS System Compatible Interface

• scientific applications
• engineering applications
• business or commercial computing