Title :
Conditional annulling for superscalar processors
Author :
Chun-Hung Wen ; Chih-Yuan Cheng ; Yun-Yu Kung ; Chung-Yu Chang ; Yen-Jen Oyang
Author_Institution :
Dept. of Comput. Sci. & Inf. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
This paper proposes an architectural feature for superscalar processors called conditional annulling. The conditional annulling mechanism achieves both the effects of conditional execution and speculative execution without incurring a significant increase of hardware complexity and cost. All effectiveness evaluation carried out in this paper shows the conditional annulling mechanism is effective in improving superscalar processor instruction scheduling.<>
Keywords :
computer architecture; microcomputers; performance evaluation; architectural feature; conditional annulling; conditional execution; effectiveness evaluation; instruction scheduling; pipeline processing; speculative execution; superscalar processors; Clocks; Costs; Decoding; Degradation; Pipelines; Processor scheduling; Registers; Testing;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.319923
