Proposed Instructions on the GE 635 for List Processing and Push Down Stacks

The instructions that transmit data between the index registers and the memory work only on the left half (address) portion of memory. These instructions are LDXn (load index n from address of storage word). And STXn (store the contents of index n in address of storage word). The effective address o...

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Main Author: Levin, Michael
Language:en_US
Published: 2004
Online Access:http://hdl.handle.net/1721.1/6114
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author Levin, Michael
author_facet Levin, Michael
author_sort Levin, Michael
collection MIT
description The instructions that transmit data between the index registers and the memory work only on the left half (address) portion of memory. These instructions are LDXn (load index n from address of storage word). And STXn (store the contents of index n in address of storage word). The effective address of both of these instructions includes modification by index registers. A corresponding set of instructions for transmitting data to or from the right half of memory would facilitate list structure operations. The present order code makes it impossible to so list-chaining operations (car or cdr) without disturbing the A or Q registers.
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spelling mit-1721.1/61142019-04-11T02:47:41Z Proposed Instructions on the GE 635 for List Processing and Push Down Stacks Levin, Michael The instructions that transmit data between the index registers and the memory work only on the left half (address) portion of memory. These instructions are LDXn (load index n from address of storage word). And STXn (store the contents of index n in address of storage word). The effective address of both of these instructions includes modification by index registers. A corresponding set of instructions for transmitting data to or from the right half of memory would facilitate list structure operations. The present order code makes it impossible to so list-chaining operations (car or cdr) without disturbing the A or Q registers. 2004-10-04T14:39:53Z 2004-10-04T14:39:53Z 1964-09-01 AIM-072 http://hdl.handle.net/1721.1/6114 en_US AIM-072 1162914 bytes 88986 bytes application/postscript application/pdf application/postscript application/pdf
spellingShingle Levin, Michael
Proposed Instructions on the GE 635 for List Processing and Push Down Stacks
title Proposed Instructions on the GE 635 for List Processing and Push Down Stacks
title_full Proposed Instructions on the GE 635 for List Processing and Push Down Stacks
title_fullStr Proposed Instructions on the GE 635 for List Processing and Push Down Stacks
title_full_unstemmed Proposed Instructions on the GE 635 for List Processing and Push Down Stacks
title_short Proposed Instructions on the GE 635 for List Processing and Push Down Stacks
title_sort proposed instructions on the ge 635 for list processing and push down stacks
url http://hdl.handle.net/1721.1/6114
work_keys_str_mv AT levinmichael proposedinstructionsonthege635forlistprocessingandpushdownstacks