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Originally Posted by GeraldSommariva
Quote:
Originally Posted by Timbucus
Quote:
Originally Posted by SiriusHardware
One thing I notice is that the EPROMs all appear to have 16-bit hex checksums written on the labels, which will be helpful if you get to the point of needing to know if they are still OK.
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Yes Ian and I were just chatting to check if they are the same as the known ones as there are a couple of 7.2 variants. The three that we do not have are the FAST VDU (CS=5D82? damn the lo res pics), the BASIC P?? (no checksum) and obviously TRAP whose checksum I cannot read.
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The checksum on the Basic is 2CA8 and the checksum on the TRAP is F86B are these the know ones for the Basic / TRAP ?
I am working towards getting a hex dump of these EPROMS and see if they work, I have the Triton emulator written by Robin Stuart up and running on a Raspberry PI 3 and it works well.
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That is great news that you managed to read them and they still match the checksums on them. My 7.2 BASIC is #34F8 so very different. As nobody has the TRAP the checksum is unknown.