Abstract: A computer system having a memory with an ECC function employs an improved method for handling corrected read data events, so transient errors caused by alpha particle hits in DRAMs may be distinguished from hard errors. When a corrected read data event occurs, a footprint defining its location is compared with previously-stored footprints to determine if this location has failed before. Also, a location showing a corrected read data event is "scrubbed" (data is read, corrected and rewritten) so transient error locations are removed. If another corrected read data event occurs for this same location, after scrubbing, then the location is assumed to have a hard fault, and so the page containing this location is replaced.

Abstract: A method and arrangement for causing both flows of an interleaved computer program to conditionally branch upon satisfaction by a machine state of the condition. By saving for at least one cycle the machine state which satisfied the condition for branching in the first flow, the second flow can then also branch on this saved machine state or condition. Since both flows branch on the same condition, the flows of the program can be kept together, thereby simplifying programming, even for those machines which have dynamic state conditions that can be branched on.