Specifications

Numeric Data Processor (8087)
OVERVIEW
The V40 is a high performance microprocessor designed for a wide
variety of applications. The math capabilities of the V40 include
addition, subtraction, multiplication, and division of 8-bit and 16-bit
numbers. However, the STD bus is often used in numerically
intensive applications needing more powerful arithmetic operations
and data types than those provided by the V40. The addition of the
8087 Numeric Data Processor (NDP) will provide the following
benefits.
• 68 additional instructions for extended arithmetic, trigonometric,
exponential, and logarithmic functions
• Seven added data types, including integers (16-, 32-, and 64-bit),
floating point (32-, 64-, and 80-bit), and BCD (18-digit)
• A typical performance increase of 100 times over software math
routines
• Compatibility with the IEEE 754 Floating Point standard
• Optional automatic error handling
ZT 8832 SPECIFICS
The NDP provides an interrupt to signal exception errors. This
interrupt is optionally connected to a non-maskable interrupt request
through jumper selection. The numeric data processor includes a
status word that indicates whether or not an interrupt request is active.
15-2