2a907fd459
Plan 9 memcpy(2) uses the same implementation as memmove(2) to handle overlapping ranges. Hovewer, the MIX MOVE instruction, as described in TAOCP, specifically does not do this. It copies words one at a time starting from the lowest address. This change also expands the address validation to check that all addresses within the source and destination ranges are valid before proceeding. |
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