UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - A Simple Programmer for TESLA "MH74S-" bipolar PROMs

SiriusHardware · 20th Nov 2019, 9:58 am

I think there's an error in Martin's 'Old OS' .obj code.

One byte difference, at 0046 - in paper listings (Old MK14 and SCMPKB) the code at 0046 = CA 08, in Martin's version of the old OS file, the code at 0046/0047 is 08 08.

I still have my 'Old OS' PROMs and if I could find them it would be a simple matter to resolve this, but of course I can not.

20th Nov 2019, 9:58 am	#22
SiriusHardware Dekatron Join Date: Aug 2011 Location: Newcastle, Tyne and Wear, UK. Posts: 11,583	Re: A Simple Programmer for TESLA "MH74S-" bipolar PROMs I think there's an error in Martin's 'Old OS' .obj code. One byte difference, at 0046 - in paper listings (Old MK14 and SCMPKB) the code at 0046 = CA 08, in Martin's version of the old OS file, the code at 0046/0047 is 08 08. I still have my 'Old OS' PROMs and if I could find them it would be a simple matter to resolve this, but of course I can not.