| ??? 05/03/06 16:39 Modified: 05/03/06 16:45 Read: times |
#115492 - the description of the DEC instruction Responding to: ???'s previous message |
Please, Eric, where in the " bible" is it said that decrementing from 0x0h would give 255?
page 28 of chapter 2 the description of the DEC instruction (that would never be a logical place to look, would it?) "An original value of 00H will underflow to 0FFH." If you do not know that 0FFH is the same as 255, then all is lost. but avoid to find fault every time someone post a thread I am not "finding fault" I am referring you and others to "the bible" because it is a fundamental document, the knowledge of which, is essential to any work with the '51. sometimes you don't help when you ask every time to refer to the bible. An old quote comes to mind "give a man a fish and he eats for a day, teach him to fish and he eats for life" There is no easy way to get to know the little bugger and as "a little knowledge is more dangerous than none" I will not answer questions that show a fundamental lack of general knowledge with any other reply then "read "the bible"". It is amazing how much you pick up searching for something in "the bible" e.g. you may learn something about timers looking at the UART section, and, please, do nat say that is irrelevant now, it will be some day. Do you ever think something like " what if the guy has read the bible and could not make thing out ? how can I help him?" Absolutely! If someone post "page nn in "the bible" states xx and I do not understand. Erik Now, if your issue is to get an 'irrelevat' school project out of the way, your attitude will, of course, be different. |
| Topic | Author | Date |
| DEC 0H ? | 01/01/70 00:00 | |
| dec | 01/01/70 00:00 | |
| How you figure its memory location zero? | 01/01/70 00:00 | |
| Because | 01/01/70 00:00 | |
| assumption... | 01/01/70 00:00 | |
| think of it like a clock | 01/01/70 00:00 | |
| i think it's bible time | 01/01/70 00:00 | |
| ASSUME = ASS U ME read and head. | 01/01/70 00:00 | |
| but the answer will still be in "the bib | 01/01/70 00:00 | |
| It's in the title! | 01/01/70 00:00 | |
| rely on history | 01/01/70 00:00 | |
| exceptions? | 01/01/70 00:00 | |
| not exactly that ... | 01/01/70 00:00 | |
| DEC R6 ! (8051 chip) | 01/01/70 00:00 | |
| the description of the DEC instruction | 01/01/70 00:00 | |
| Good! Erick | 01/01/70 00:00 | |
| why work from print | 01/01/70 00:00 | |
| I do ! | 01/01/70 00:00 | |
| Surely that's justification enough. | 01/01/70 00:00 | |
| I did not suggest that | 01/01/70 00:00 | |
I did not suggest that ! .... | 01/01/70 00:00 | |
| Think about an ordometer | 01/01/70 00:00 | |
| control apps | 01/01/70 00:00 | |
| In decimal mode ... | 01/01/70 00:00 |