| ??? 07/23/08 07:53 Read: times |
#156964 - A sample code for your task Responding to: ???'s previous message |
Dear Alan,
Try this sample code. Here I hwve writen only one routine which is responsible for incrementing. Beauty of the routine is that it effects only r0, psw and the actual ram locations that are ment to alter. all other registers (including Accumulator) are untouched acall read_num ;this routine reads from eeprom n stores number in desired location(0x60 to 0x69) acall inc_num acall stor_num ;this routine stores incremented number back to eeprom acall prn_num ;this routine sends number to print / display etc stor_num: push psw mov psw, #0 push 0 mov r0, #60h ;initialising pointer nxt_dig: inc @r0 cjne @r0,#0Ah,go_ret mov @r0,#0 inc r0 cjne r0,#6Ah,nxt_dig go_ret: pop 0 pop psw ret Try this n reply. Wish u best luck Regards, Mahesh |
| Topic | Author | Date |
| incrementing a large number in assembly | 01/01/70 00:00 | |
| Wear and tear | 01/01/70 00:00 | |
| The EEPROM is | 01/01/70 00:00 | |
| F-RAM | 01/01/70 00:00 | |
| F-RAM problem | 01/01/70 00:00 | |
| what's the problem? | 01/01/70 00:00 | |
| found a substitute | 01/01/70 00:00 | |
| first do it in C, then | 01/01/70 00:00 | |
| Load/Save in loop | 01/01/70 00:00 | |
| To Answer Your Question ... | 01/01/70 00:00 | |
| Thanks Russ - slow event | 01/01/70 00:00 | |
| A sample code for your task | 01/01/70 00:00 | |
| Sample code irrelevant | 01/01/70 00:00 | |
| Socketed EEPROM? | 01/01/70 00:00 | |
| walking writes are dead simple | 01/01/70 00:00 | |
| Larger EEPROM = simple code | 01/01/70 00:00 | |
| the counter is | 01/01/70 00:00 | |
| good point | 01/01/70 00:00 | |
Blinkers | 01/01/70 00:00 |