Preliminary Specifications: Programmed Data Processor Model Three (PDP-3) / October, 1960

by Digital Equipment Corporation

This instruction will shift the contents of the Accumulator left N positions, where N is octal digits 7-11 of the instruction word.

Rotate In-Out Register Right(13 usec. maximum for 36 shifts)
rir N Operation Code 672

This instruction will rotate the bits of the In-Out Register right N positions, where N is octal digits 7-11 of the instruction word.

Rotate In-Out Register Left(13 usec. maximum for 36 shifts)
ril N Operation Code 662

This instruction will rotate the bits of the In-Out Register left N positions, where N is octal digits 7-11 of the instruction word.

Shift In-Out Register Right(13 usec. maximum for 36 shifts)
sir N Operation Code 676

This instruction will shift the contents of the In-Out Register right N positions, where N is octal digits 7-11 of the instruction word.

Shift In-Out Register Left(13 usec. maximum for 36 shifts)
sil N Operation Code 666

This instruction will shift the contents of the In-Out Register left N positions, where N is octal digits 7-11 of the instruction word.

Rotate AC and IO Right(13 usec. maximum for 36 shifts)
rcr N Operation Code 673