cray HR-0004-CRAY 1 Hardware Reference Manual-PRELIMINARY-1975.OCR free download

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..._1 RESEARCH. INC. PREUMINARY REFERENCE MANUAL THE CRAY-1 COMPUTER PRELIMINARY REFERENCE MANUAL CoPYRIGHT (C) 1975 BY CRAY RESEARCH, INC. THIS MANUAL, OR PARTS THEREOF, MAY N0T BE REPRODUCED IN ANY FORM WITHOUT PERMISSION OF CRAY KESEARCH, NC. I HIS ~UAL CONTAINS PRELIMINARY INFORf'1ATION WHICH IS SUBJECT TO CORRECTION AND CHANGE WITHOUT FORMAL NOTICE TO COpy HOLDERS. New features, as well as changes, deletions, and additions to information in this manual are indicated by bars in the margins or by a dot near the page number if the entire page is affected. A bar by the page number indicates pagination rather than content has changed. REVISION RECORD REVISION DESCRIPTION 4/75 Ori2inal PrintinQ' A This revision corrects various typograppical and technical 6/75 errors. CONTENTS Introduction 1 Summary of machine characteristics 1 Principal operating registers 1 A registers 1 B registers 1 S registers 2 T registers 2 V registers 2 VL register 2 VM register 2 P register 2 Supporting registers 5 BA register 5 LA register 5 XA register 5 F register 5 M register 6 Input/Output 6 Comparison of scalar and vector processing 6 Functional units 7 Instruction formats 7 Special register values 9 Instruction buffers. 9 Data formats 9 Rev. A iii CAL language structure 11 Statement format . 11 Location field 11 Result field 11 Operand field 11 Comments field 11 Coding conventions 12 Comments statement 12 Lower case in comments 12 Symbols 12 Special element, * 13 "P." prefix 13 "W." prefix 13 Expressions 13 CPU register designation 14 Pseudo-instructions 14 ABS 14 BSS 14 BSSZ 15 CON 15 EJECT