公开(公告)号：US20130282784A1

公开(公告)日：2013-10-24

申请号：US13921316

申请日：2013-06-19

Applicant: Advanced Micro Devices,Inc.

Inventor： David S. Oliver ,  Debjit Das Sarma ,  Scott Hilker

IPC: G06F7/483

CPC classification number: G06F7/483 ,  G06F7/49942 ,  G06F7/5443

Abstract: A device and methods are disclosed for communicating an unrounded result from one arithmetic calculation for use in a second, subsequent calculation. For example, an unrounded result of a first calculation can be forwarded to provide a multiplier, a multiplicand or an addend operand for the subsequent operation. The operand can be forwarded to the input of the same fused multiply addition module (FMAM) that supplied the result, or to another FMAM, and do so without regard to the precision of the forwarded operand, the precision of the subsequent operation, or the native precision of the FMAM.

Abstract translation: 公开了一种用于传送来自一个算术计算的未包围结果以用于第二次后续计算的装置和方法。 例如，可以转发第一次计算的未包围的结果以提供用于后续操作的乘法器，被乘数或加数操作数。 操作数可以转发给提供结果的相同的融合乘法加法模块（FMAM）的输入，或转发给另一个FMAM，并且不考虑转发操作数的精度，后续操作的精度，或者 FMAM的本机精度。