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Memory Error at Address $1DE354EC expected $07FD2ADO but read $07FD2ACO
>>

X'1DE364EC' is the hexadecimal memory address, which in this case is the 
X'1DE3'-th block of 64 kbytes in the machine's RAM.

The exclusive-OR of the expected and actual data gives you the bit which is 
bad.

X'07FD2ADO' XOR X'07FD2ACO = X'00000010', meaning that the RAM chip which is 
designated data bit 4, reading from right to left as data bit 0 through data 
bit 31, is the defective chip.


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