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Products => Other Equipment & Products => Topic started by: TheEPROM9 on May 08, 2021, 04:14:29 pm

Title: ROYAL ORDNANCE Fuze Setter Logic Unit L1A1 Teardown
Post by: TheEPROM9 on May 08, 2021, 04:14:29 pm
I have also included dumps from the EPROM's
https://www.youtube.com/watch?v=_SyHoFNa9Fc (https://www.youtube.com/watch?v=_SyHoFNa9Fc)
Title: Re: ROYAL ORDNANCE Fuze Setter Logic Unit L1A1 Teardown
Post by: bsdphk on May 09, 2021, 05:52:48 pm
The CDP1802 is a wonderful chip.

It has 16 registers 16 bit each, and then it has a 4 bit register which tells you which register is the program counter right now
Title: Re: ROYAL ORDNANCE Fuze Setter Logic Unit L1A1 Teardown
Post by: bsdphk on May 09, 2021, 08:45:30 pm
I have added the proms as an example to my PyReveng3 archaeology disassembler:

https://github.com/bsdphk/PyReveng3/tree/master/examples/L1A1_Fuze_Setter

Title: Re: ROYAL ORDNANCE Fuze Setter Logic Unit L1A1 Teardown
Post by: TheEPROM9 on May 10, 2021, 09:15:56 am
Nice & I see it's Python. I will have a play with that one.
Title: Re: ROYAL ORDNANCE Fuze Setter Logic Unit L1A1 Teardown
Post by: TheEPROM9 on May 10, 2021, 09:17:41 am
The CDP1802 is a wonderful chip.

It has 16 registers 16 bit each, and then it has a 4 bit register which tells you which register is the program counter right now

I am discovering these have a bit of a following in the retro computer comuity. I wonder if I should pillage it from the device & use it in a project. Seems a little mnore advanced than the usual 8-bit CPU's like the Z80 or the 6502.
Title: Re: ROYAL ORDNANCE Fuze Setter Logic Unit L1A1 Teardown
Post by: coppercone2 on May 23, 2021, 08:18:57 am
i like how they drew a little moon and sun on it. i wonder if the version for nuclear rounds has something like this

(https://i5.walmartimages.com/asr/d8a98605-189b-4600-baf7-3c0641ac9c95_1.88eee0e9df8d0da27d682bb2cd6c09e7.jpeg)