| ??? 02/15/08 19:16 Read: times |
#150899 - what '51 assembler do you use? Responding to: ???'s previous message |
Most of them do have HIGH and LOW directives, so what I have written above is correct. Below, please find .lst of my example assembled by the free Metalink assembler (I used your variables definitions, but had to edit slightly: note that most assmeblers require the colon to follow immediately the label, without any whitespace - and it's a bad habit to use tabulators, too).
In some others, you need to perform an arithmetic operation, such as add a,#PositionN & 0xFF ... addc a,#PositionN >> 8or the like. Read your assembler's manual for further details. JW |
| Topic | Author | Date |
| Need help with RAM access via 8051 | 01/01/70 00:00 | |
| re | 01/01/70 00:00 | |
| RE: | 01/01/70 00:00 | |
| no need to put constant into dptr | 01/01/70 00:00 | |
| How can I get the low and high parts? | 01/01/70 00:00 | |
| what '51 assembler do you use? | 01/01/70 00:00 | |
| push/pop A | 01/01/70 00:00 | |
| In my asm push ACC works! | 01/01/70 00:00 | |
| Another question: | 01/01/70 00:00 | |
| options: | 01/01/70 00:00 | |
| By inc I mean increase the value in RAM by 1 | 01/01/70 00:00 | |
once DPTR points to that value... | 01/01/70 00:00 | |
| this is why it's dangerous... | 01/01/70 00:00 | |
| You can push/pop [direct] though. | 01/01/70 00:00 | |
| this is certainly correct... | 01/01/70 00:00 |