On 12 Nov 2008 at 18:32, Patrick Finnegan wrote: > Are there any guides for writing 1620 assembly online anywhere? http://bitsavers.vt100.net/pdf/ibm/1620/C26-5600- 1_Symbolic_Programming_System_Apr63.pdf Strangely, bitsavers doesn't have the Monitor II-D reference. I'll have to put mine in my will so that Al gets it when I come to my own personal BSOD. Cheers, Chuck