| ??? 06/02/06 08:49 Modified: 06/02/06 09:57 Read: times |
#117584 - Many Questions Responding to: ???'s previous message |
Also it is a good idea to preserve the register area (at least 0-7 for register bank 0) for future use. Did not know that. But I definitely have a problem with how I store previous inputs i.e. MOV A,P2 CPL A MOV @R0,A where R0 counts from 8 to 1. Resulting in storing data in locations 1 to 8. This logic will work only if I use locations 1 to 8, and I dont like that. Could you suggest a different approach? Also, address 8 is the first byte which would be Could you please elaborate on that? A hardware problem: you write your output value into P3 where you read from your input value, that would collide. Yes that was a mistake. Actually Port3 is input and Port 2 is output. I Modified the code with changes highlighted, like you proposed. You also need some strobe to let the PC know the output value is written. I have written a Parllel port monitor that keeps polling the Parllel port and responds if certian predefined numbers are writen to it. I dont see why a strobe is required. |
| Topic | Author | Date |
| Another standard problm in Assembly Lang | 01/01/70 00:00 | |
| many ways | 01/01/70 00:00 | |
| lookup table? | 01/01/70 00:00 | |
| yup | 01/01/70 00:00 | |
| hummmm | 01/01/70 00:00 | |
| algorithm! | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| forget the lookup table | 01/01/70 00:00 | |
| no language dependency | 01/01/70 00:00 | |
| abstraction | 01/01/70 00:00 | |
| Direct Test | 01/01/70 00:00 | |
| did you take it at Grossmont? | 01/01/70 00:00 | |
| Wrong mark | 01/01/70 00:00 | |
| just wonder | 01/01/70 00:00 | |
| homework | 01/01/70 00:00 | |
| No not homework | 01/01/70 00:00 | |
| Bit 3? | 01/01/70 00:00 | |
| Depends | 01/01/70 00:00 | |
| reverse bit numbering | 01/01/70 00:00 | |
| reverse bit numbering: mirror | 01/01/70 00:00 | |
| It's logical... | 01/01/70 00:00 | |
| Thks | 01/01/70 00:00 | |
| Unconventional | 01/01/70 00:00 | |
| Yes, now I know | 01/01/70 00:00 | |
| oops | 01/01/70 00:00 | |
| Radix notation | 01/01/70 00:00 | |
| Why "Standard"? | 01/01/70 00:00 | |
| give it in C | 01/01/70 00:00 | |
| Finally Some Code | 01/01/70 00:00 | |
| formatted | 01/01/70 00:00 | |
| Much nicer | 01/01/70 00:00 | |
| OH boy | 01/01/70 00:00 | |
| No I havent | 01/01/70 00:00 | |
| edited | 01/01/70 00:00 | |
| No Prob | 01/01/70 00:00 | |
| Yes. | 01/01/70 00:00 | |
| try & ask | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| Many Questions | 01/01/70 00:00 | |
| Q&A | 01/01/70 00:00 | |
| Man! That just made my day! | 01/01/70 00:00 | |
| Revised Code | 01/01/70 00:00 | |
hi abhishek!!! | 01/01/70 00:00 |