M80C287

M80C287 80-BIT CHMOS III NUMERIC PROCESSOR EXTENSION Military Y High Performance 80-Bit Internal Architecture Implements ANSI IEEE Standard 7541985 for Binary Floating-Point Arithmetic Implements Extended M387 Numerics Coprocessor Instruction Set Two to Three Times M8087 M80287 Performance at Equivalent Clock Speed Low Power Consumption Upward Object-Code Compatible from M8087 and M80287 Interfaces with M80286 and M80C286 CPUs Expands CPU’s Data Types to Include 32- 64- 80-Bit Floating Point 32- 64Bit Integers and 18-Digit BCD Operands Y Y Directly Extends CPU’s Instruction Set to Trigonometric Logarithmic Exponential and Arithmetic Instructions for All Data Types Full-Range Transcendental Operations for SINE COSINE TANGENT ARCTANGENT and LOGARITHM Built-In Exception Handling Operates in Both Real and Protected Mode Systems Eight 80-Bit Numeric Registers Usable as Individually Addressable General Registers or as a Register Stack Available in 40-pin CERDIP (See Packaging Outlines and Dimensions order 231369) Y Y Y Y Y Y Y Y Y Y Y Y Military Temperature Range b 55 C to a 125 C (TC) The Intel M80C287 is a high-performance numerics processor extension that extends the architecture of the M80C286 CPU with floating point extended integer and BCD data types A computing system that includes the M80C287 fully conforms to the IEEE Floating Point Standard Using a numerics oriented architecture the M80C287 adds over seventy mnemonics to the instruction set of the M80C286 ...