Compare - Chysn/VIC20-wAx2 GitHub Wiki
To see the addresses of differences and similarities for two regions of memory, use the Compare Tool:
.C from-r1 to-r1 from-r2
where from-r1, to-r1, and from-r2 are valid 16-bit hexadecimal addresses. This will compare the region of memory from from-r1 to to-r1 against the region of memory from from-r2 to (from-r2 + to-r1 - from-r1).
The tool will show a list of addresses in both regions, and the number of consecutive bytes that match (marked as "=" with green text) or differ (marked as "!" with red text) starting at those addresses.