Unknown paper tape format
Bill Degnan
billdegnan at gmail.com
Sun Dec 23 15:42:37 CST 2018
Not intel nor motorola format.
Could be for some sort of ePROM or other data tape, read in after the load
of the program like a SEQ disk file. There should still be some sort of
checksum, regardless.
B
On Sun, Dec 23, 2018, 4:26 PM Kyle Owen via cctalk <cctalk at classiccmp.org
wrote:
> I found a spool of mylar tape dated 23 March 1972, with "EARS" on it; best
> I can tell, this was for the Experimental Array Radar System.
>
> Image can be found here:
> https://drive.google.com/open?id=11VKKklor1QDyWCz0b3zVNj_I_vmt4oN4
>
> Anyone have any clue as to the format? Here's the beginning of the tape:
>
> 0000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> *
> 0000060 00 00 00 00 00 00 00 00 00 00 00 40 40 40 08 e5
> 0000070 43 c1 40 5b 43 c1 40 dc 43 c1 40 5d 43 c1 40 5e
> 0000080 43 c1 40 df 43 c1 40 e0 43 c1 40 61 43 c1 40 62
> 0000090 43 c1 40 e3 43 c1 40 64 43 c1 40 f1 c2 c1 40 f2
> 00000a0 c2 c1 40 73 c2 c1 40 f4 c2 c1 40 75 c2 c1 40 f7
> 00000b0 c2 c1 40 45 43 c1 40 46 43 c1 40 c7 43 c1 40 c8
> 00000c0 43 c1 40 49 43 c1 40 4a 43 c1 40 4c 43 c1 40 cb
> 00000d0 43 c1 40 d5 43 c1 40 d6 43 c1 40 4a 40 c1 40 cd
> 00000e0 40 c1 40 cb 40 c1 40 7f e0 c1 40 f2 45 c2 40 57
> 00000f0 43 c1 40 58 43 c1 40 d9 43 c1 40 da 43 c1 40 6e
>
> and the end:
>
> 0006400 45 c2 40 57 4c c1 40 5e 4c c1 40 f4 cb c1 40 e5
> 0006410 4c c1 40 fb cb c1 40 ec 4c c1 40 e0 7f 7f 40 40
> 0006420 40 c7 40 73 4c c1 40 7a 4c c1 40 c7 40 40 40 da
> 0006430 c8 c2 40 ef 57 c1 40 c1 cd c1 40 46 d0 d0 40 79
> 0006440 cd c1 40 d5 57 c1 40 4f cd c1 40 5d cd c1 40 c2
> 0006450 4c c1 40 6b cd c1 40 c8 cd c1 40 58 cb c1 40 df
> 0006460 cb c1 40 e6 cb c1 40 f2 cd c1 40 46 40 40 40 cd
> 0006470 40 40 40 4c 40 40 40 d5 d6 c1 40 d5 61 c1 40 40
> 0006480 61 c1 40 fb d3 c2 40 c7 ce c1 40 7f 57 c1 40 c2
> 0006490 cb c1 40 49 40 40 40 e3 d6 c1 40 f2 d6 c1 40 58
> 00064a0 57 c2 40 76 d9 c2 40 40 40 40 08 07 80 80 80 00
> 00064b0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
> *
> 0006600 00 00 00 00 00 00
>
> Would love to know what computer system this was running on.
>
> Thanks!
>
> Kyle
>
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