Title :
An out-of-order three-way superscalar multimedia floating-point unit
Author :
Scherer, A. ; Golden, M. ; Juffa, N. ; Meier, S. ; Oberman, S. ; Partovi, H. ; Weber, F.
Author_Institution :
Adv. Micro Devices Inc., Sunnyvale, CA, USA
Abstract :
The AMD-K7/sup TM/ floating point unit is implemented as an out-of-order coprocessor responsible for executing all x86 FPU, MMX/sup TM/, and AMD 3DNoW!/sup TM/ instructions. The FPU interfaces to the AMD-K7 core, which sends it instructions, load data, and guides the retirement of instructions. The FPU sends store data and completion status back to the core. The FPU contains 2.4 M transistors on a 10.5/spl times/2.6 mm/sup 2/ die in a 0.25 /spl mu/m process. A micrograph of the FPU is shown.
Keywords :
coprocessors; floating point arithmetic; multimedia computing; 0.25 micron; AMD 3DNoW!; AMD-K7; MMX; completion status; out-of-order coprocessor; three-way superscalar multimedia floating-point unit; x86 FPU; Flip-flops; Latches; Microarchitecture; Out of order; Pipelines; Reduced instruction set computing; Registers; Solid state circuits;
Conference_Titel :
Solid-State Circuits Conference, 1999. Digest of Technical Papers. ISSCC. 1999 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5126-6
DOI :
10.1109/ISSCC.1999.759136
