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 Assemble    statements directly into memory  A [address]
 Compare     two blocks of memory             C range address
 Dump        Display contents of memory       D [address]  or  D [range]
 Enter       Modify memory contents           E address [list]
 Fill        memory block with values         F range list
 Go          Execute program (w/breakpoints)  G [=address][addr[addr...]]
 Hex         Add & subtract two hex numbers   H value value
 Input       Read byte from port              I portaddress
 Load        file/disk sectors into memory    L [addr[drive sector sector]]
 Move        Copy memory blocks               M range address
 Name        Define filename and parameters   N [d:][path]filename[.ext]
 Output      Send byte to port                O portaddress
 Proceed     Execute loop/until return        P [=address][value]
 Quit        End DEBUG program                Q
 Register    Display/modify register          R [registername]
 Search      Search memory                    S range list
 Trace       Execute one/more instructions    T [=address][value]
 Unassemble  instructions                     U [address]  or  U [range]
 Write       file/absolute disk sectors       W [addr[drive sector sector]]