NAME

taac − Sun applications accelerator

CONFIG

options TAAC

DESCRIPTION

The taac interface supports the optional TAAC-1 Applications Accelerator.  This add-on device is composed of a very-long-instruction-word computation engine, coupled with an 8MB memory device.  This memory area can be used either as a frame buffer, or as storage for large data sets. 

Programs can be downloaded for execution on the TAAC-1 directly, they can be executed by the host processor, or, the host processor and the TAAC-1 engine can be used in combination.  See the TAAC-1 User’s Guide for detailed information on accessing the TAAC-1 from the host.  This manual also describes the C compiler, the programming tools, and the support libraries for the TAAC-1. 

Program (or functions) running on the host gain access to the memory device using mmap(2) to map it into the standard vme32d32 device address space (see mem(4)).  The TAAC-1 memory starts at standard address (offset) 0x2800000.  Once mapped, the device functions just like a vme32d32 device, except that the taac interface allows 32-bit read/write access to a 32MB segment of the 32-bit address space. 

FILES

/dev/taac

/usr/include/taac1

/usr/lib/taac1

SEE ALSO

mem(4S), mmap(2)

TAAC-1 Application Accelerator: User Guide

Sun Release 3.2  —  Last change: 26 October 1987