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→Hardware bit manipulation: put main article on operations link to where the summary should be put back, and what is in the (new, comprehensive) section merged into it Tags: Mobile edit Mobile web edit Advanced mobile edit |
→DEC PDP-10: PDP10 bit-field insert/extract Tags: Mobile edit Mobile web edit Advanced mobile edit |
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Later models of the PDP-10 had instructions to convert between [[Binary-coded decimal#Packed BCD|packed BCD]] and binary.{{sfn|pdp10|pages=2{{hyp}}99|}}
Also present is unusual (variable-bit-length) byte load and store instructions that use ''byte pointers'' for memory operands: in modern terminology these are bit-field insert and extract. In addition to a word address, the bit length (S) and the bit offset (P) of the byte from which to load or into which to store are specified. These instructions can specify a byte size of 0-36, but a byte may not straddle a word boundary.{{sfn|pdp10|pages=2{{hyp}}85-2{{hyp}}89|loc=Byte manipulation|}} The string manipulation,{{sfn|pdp10|pages=2{{hyp}}91-2{{hyp}}99|loc=2.12 String Manipulation|}} BCD/binary conversion,{{sfn|pdp10|pages=2{{hyp}}98-2{{hyp}}103|loc=2.13 Decimal Conversion|}} and string editing{{sfn|pdp10|pages=2{{hyp}}104-2{{hyp}}112|loc=2.14 String Editing|}} instructions in later models use byte pointers and have the same restrictions.
=== ARM ===
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