| ??? 08/25/06 08:33 Read: times |
#122992 - try this Responding to: ???'s previous message |
erikm said:
are you sure P2_4 is defined before the #define SW1 P2_4, C does not work 'backwards' Try this:
#define SW1 P2_4
#include <8052.h>
void foo(void)
{
SW1 = 1;
}P2_4 is not known when the define is encountered.
erikm said:
so can we agree what is used must be ABOVE it's usage?
Yes, with the emphasis on usage. |
| Topic | Author | Date |
| SDCC Nooby Question | 01/01/70 00:00 | |
| Ok got it | 01/01/70 00:00 | |
| it\'s ok in Keil | 01/01/70 00:00 | |
| Yes... | 01/01/70 00:00 | |
| The reason is... | 01/01/70 00:00 | |
| C first | 01/01/70 00:00 | |
| Learning C | 01/01/70 00:00 | |
| if this is cut and paste then | 01/01/70 00:00 | |
| Semi-colon was it | 01/01/70 00:00 | |
| C is fidgety about error declaration | 01/01/70 00:00 | |
| Syntax error | 01/01/70 00:00 | |
| Going back and looking... | 01/01/70 00:00 | |
| It means | 01/01/70 00:00 | |
| Preprocessor output | 01/01/70 00:00 | |
| explanation | 01/01/70 00:00 | |
| Semicolon | 01/01/70 00:00 | |
| yes, Andy you are absolutely correct | 01/01/70 00:00 | |
| Semicolon - example | 01/01/70 00:00 | |
| backwards | 01/01/70 00:00 | |
| HUH? | 01/01/70 00:00 | |
| try this | 01/01/70 00:00 | |
| Dallas app notes | 01/01/70 00:00 | |
| False economy | 01/01/70 00:00 | |
| OK | 01/01/70 00:00 | |
| Learning from the tools | 01/01/70 00:00 | |
| #define and the preprocessor | 01/01/70 00:00 | |
| are you sure? | 01/01/70 00:00 | |
Yes! | 01/01/70 00:00 | |
| Hmmm... | 01/01/70 00:00 | |
| SDCC Manual | 01/01/70 00:00 | |
| Err... ya think? | 01/01/70 00:00 | |
| Looks clear enough to me | 01/01/70 00:00 |