HP 1000 double integer instructions info

On 11 Aug 2006 at 11:02, Holger Veit wrote: I hadn't thought to look there. Thanks! Appendix C, "HP 1000 Computer Instruction Set," lists the double integer instructions for the E-Series as in the range 105320-105337, which are the opcodes for the SIS firmware on the F-Series. Seems reasonable. However, the first page of that appendix states, "Special or custom firmware (for example, double integer and third-party firmware) is not included in table C-1." So I'm unsure of the origin of those opcodes. The reference to the "specials" product 93585A came in a "Real-Time Interface" (an Interex publication) article from January 1994, written by Esther Heller and Don Pottenger of HP DSD. The date of the MACRO/1000 manual is December 1992. So I guess that the manual is giving the opcodes of the 93585A microcode, even though it states that it isn't. If anyone has any corroborating evidence, perhaps from an old HP buying guide, I'd feel more confident. -- Dave