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89 lines
2.2 KiB
Plaintext
89 lines
2.2 KiB
Plaintext
.TITLE SHIFTS. PLM RUNTIME LIBRARY: ROL, ET AL.
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;-----------------------------------------------------------------------
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;
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; D I S C L A I M E R N O T I C E
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; ------------------- -----------
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;
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; This document and/or portions of the material and data furnished
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; herewith, was developed under sponsorship of the U. S. Government.
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; Neither the U.S. nor the U.S.D.O.E., nor the Leland Stanford Junior
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; University, nor their employees, nor their respective contractors,
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; subcontractors, or their employees, makes any warranty, express or
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; implied, or assumes any liability or responsibility for accuracy,
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; completeness or usefulness of any information, apparatus, product
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; or process disclosed, or represents that its use will not infringe
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; privately-owned rights. Mention of any product, its manufacturer,
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; or suppliers shall not, nor is it intended to, imply approval, dis-
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; approval, or fitness for any particular use. The U. S. and the
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; University at all times retain the right to use and disseminate same
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; for any purpose whatsoever. Such distribution shall be made by the
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; National Energy Software Center at the Argonne National Laboratory
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; and only subject to the distributee furnishing satisfactory proof
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; that he has a valid license from the Intel Corporation in effect.
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;
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;-----------------------------------------------------------------------
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.PSECT PLMRUN_CODE,RD,NOWRT,EXE,GBL,CON,LONG
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;
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; B = ROL(PATTERN,COUNT)
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;
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PATTERN=4 ; BYTE OR WORD.
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COUNT=8 ; BYTE
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.ENTRY ROL.,^M<>
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MOVZBL PATTERN(AP),R0
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MULL2 #^X01010101,R0 ; REPLICATE BYTE 4 TIMES.
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ROTL COUNT(AP),R0,R0
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RET
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;
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; B = ROR(PATTERN,COUNT)
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;
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.ENTRY ROR.,^M<>
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MOVZBL PATTERN(AP),R0
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MULL2 #^X01010101,R0 ; REPLICATE BYTE 4 TIMES.
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MNEGB COUNT(AP),R1
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ROTL R1,R0,R0
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RET
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;
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; W = SHL(PATTERN,COUNT)
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;
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.ENTRY SHL.,^M<>
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MOVZWL PATTERN(AP),R0
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ASHL COUNT(AP),R0,R0
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RET
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;
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; W = SHR(PATTERN,COUNT)
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;
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.ENTRY SHR.,^M<>
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MOVZWL PATTERN(AP),R0
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MNEGB COUNT(AP),R1
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ASHL R1,R0,R0
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RET
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;
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; I = SAL(PATTERN,COUNT)
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;
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.ENTRY SAL.,^M<>
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CVTWL PATTERN(AP),R0
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ASHL COUNT(AP),R0,R0
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RET
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;
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; I = SAR(PATTERN,COUNT)
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;
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.ENTRY SAR.,^M<>
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CVTWL PATTERN(AP),R0
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MNEGB COUNT(AP),R1
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ASHL R1,R0,R0
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RET
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.END
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