| ??? 08/06/07 09:22 Read: times |
#142807 - both Responding to: ???'s previous message |
Oliver Sedlacek said:
The code modifier is a non standard extension to C, while const is standard. I recommend the standard way. The 'code' extension specifically tells the (Keil) compiler to locate the item in the 8051's CODE space. The 'const' standard modifier simply tells the compiler to treat any attempt to modify the item as an error - it does not necessarily direct the compiler to locate it to any specific memory area. eg, you might use 'const' for a read-only memory-mapped IO in XDATA space... I'm not sure if the Keil compiler treats 'code' as implicitly 'const', but it can't hurt to specify both! |
| Topic | Author | Date |
| A Simpler Way? | 01/01/70 00:00 | |
| Logical AND ? | 01/01/70 00:00 | |
| Shift? | 01/01/70 00:00 | |
| I Agree. | 01/01/70 00:00 | |
| Another Option | 01/01/70 00:00 | |
| the simplest way | 01/01/70 00:00 | |
| capitals | 01/01/70 00:00 | |
| I copyued what the OP used | 01/01/70 00:00 | |
| The common use of CAPs in C | 01/01/70 00:00 | |
| totally agree, however | 01/01/70 00:00 | |
| Why are you rambling about variables... | 01/01/70 00:00 | |
| not to me | 01/01/70 00:00 | |
| Variable capitalisation? | 01/01/70 00:00 | |
| 'code 'never is | 01/01/70 00:00 | |
| Did not think it mattered. | 01/01/70 00:00 | |
| Code modifier | 01/01/70 00:00 | |
| both | 01/01/70 00:00 | |
| Use both | 01/01/70 00:00 | |
| C++ ? | 01/01/70 00:00 | |
Mixed | 01/01/70 00:00 | |
| Extensions | 01/01/70 00:00 | |
| Experience | 01/01/70 00:00 |