Revision as of 06:29, 12 August 2025 edit Lkcl (talk \| contribs) Extended confirmed users 3,004 edits →DEC PDP-10: add string manip ref pdp10 Tags: Mobile edit Mobile web edit Advanced mobile edit ← Previous edit		Revision as of 06:46, 12 August 2025 edit undo Guy Harris (talk \| contribs) Extended confirmed users 80,029 edits →DEC PDP-10: Rewrite to try to have it explain what "LUT2" refers to. Put the BCD conversion instructions into a separate paragraph, and fix a typo. Next edit →
Line 65: === DEC PDP-10 === The DEC [[PDP-6]] and [[PDP-10]] had ~~LUT2-style Logical~~logical operations covering the full suite of 2-operand ~~logic~~[[lookup table#Hardware LUTs\|hardware lookup table]] (LUT2) [[Boolean function]]s{{sfn\|pdp10\|p=2.38\|at=2.4 Boolean Functions\|}} ~~[[Boolean~~(rather ~~function]]~~than ~~instead~~the of3-operand ~~ternary,~~functions ~~like~~that AVX512 and Power ISA. have). Later models of the PDP-10 had instructions to ~~covert~~convert between [[Binary-coded decimal#Packed BCD\|packed BCD]] and binary.{{sfn\|pdp10\|pages=2.99\|}} Also present is unusual (variable-bit-length) load and store instructions. Both the bit length (S) and the offset (P) could be specified.{{sfn\|pdp10\|pages=2.85-2.89\|loc=Byte manipulation\|}} The Byte Manipulation instructions[2] can specify a byte size of 0-36, but may not straddle word boundaries. The String Manipulations have a similar restriction.{{sfn\|pdp10\|pages=2.91\|loc=2.12 String manipulation\|}}

Bit manipulation instructions: Difference between revisions