On Tue, 15 Aug 2017, Dave Horsfall <dave at horsfall.org> wrote: >> On Mon, 14 Aug 2017, Paul Winalski wrote: >> >> [ Ye olde 704 ] >> >>> TMP (transfer on plus) >> > That's rather an odd mnemonic… Actually, the 704 manual of operation gives the mnemonic as TPL: http://www.bitsavers.org/pdf/ibm/704/24-6661-2_704_Manual_1955.pdf