??? 10/30/03 12:35 Read: times |
#57510 - RE: More on DIP Switch Code Responding to: ???'s previous message |
Umm, yeah! I have not thought about that, sorry
Btw, here I remember one thing which confuses me: could anybody explain me, why the "@" is used with JMP @A+DPTR ? Realy, if I use MOV A,@R0 then it means that Accumulator will be loaded with content of memory which address is stored in R0. In short: the sign "@" means Indirect addressing, does it not? But what does mean JMP @A+DPTR ? On first look, it means that program should jump to address which is sum of DPTR content and the value from address which presents in ACC (like @R0). From other side, if it would be JMP @(A+DPTR) then program jumps to address which is loaded from [program/external] memory at address calcualted as sum of DPTR and accumulator. Why it is not a simple JMP A+DPTR ? Thanks! |
Topic | Author | Date |
More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code![]() | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 | |
RE: More on DIP Switch Code | 01/01/70 00:00 |