| ??? 10/22/08 03:36 Read: times |
#159244 - stacking numbers in memory code problem |
Here is some code to stack numbers in memory. The latest number is stored at location 0141H in memory - the 50th number is stored at 0172H in memory.
I can't seem to get more then the latest number position to load with data - the other 49 locations remain blank for some reason. Location #44H in RAM has the latest number and this number should be put into 0141H in memory. I use the DPTR as a convenient memory pointer. Memory is a 25LC640 EEPROM and the CPU is a AT89LP4052 The write and read to memory routines work so I wont show them. What is wrong with the following code? INCNXNU:MOV DPTR,#0171H INCNJ: CALL READEE ;READ MEMORY AND STORE IN 46H INC DPL MOV 48H,46H CALL WRITEEE ;WRITE MEMORY MOVE TO NEXT POSITION DOWN DEC DPL DEC DPL MOV A,DPL CJNE A,#41H,INCNJ MOV 48H,44H ;PUT LAST RESULT ON TOP AT 0141H CALL WRITEEE RET |
| Topic | Author | Date |
| stacking numbers in memory code problem | 01/01/70 00:00 | |
| does readee put its value in 46H? | 01/01/70 00:00 | |
| readee reads memory | 01/01/70 00:00 | |
| Your code looks good to me | 01/01/70 00:00 | |
| it looks awful to me | 01/01/70 00:00 | |
| it was indented | 01/01/70 00:00 | |
| like this | 01/01/70 00:00 | |
| Instructions | 01/01/70 00:00 | |
| yes, yes, ok | 01/01/70 00:00 | |
| Guided/unguided? | 01/01/70 00:00 | |
| EEPROM not final | 01/01/70 00:00 | |
| Hard coded values | 01/01/70 00:00 | |
| that can't be it | 01/01/70 00:00 | |
| Are you 199% sure?? | 01/01/70 00:00 | |
| Here is the WRITEEE code | 01/01/70 00:00 | |
HA! figured it out | 01/01/70 00:00 |