| ??? 01/26/06 17:05 Read: times |
#108399 - Question about pointers with C |
I'm just getting started with C and the 8051. I have decent experience with assembly, but not so much with C. Here's my question. What is the difference between these two lines of code besides the fact that they are mapping different things. Specifically, what does the first "*" do for me in the second line.
#define timers ((dual_timers *)0x03FF6000 #define RAM0_ADDR (*(char far *)0x0D0000) Thanks, Dave |
| Topic | Author | Date |
| Question about pointers with C | 01/01/70 00:00 | |
| Eh??? | 01/01/70 00:00 | |
| Compiler | 01/01/70 00:00 | |
| is that the Keil compiler you are using? | 01/01/70 00:00 | |
| Keil compiler | 01/01/70 00:00 | |
| keil has '51, '251, '16x, ARM which? | 01/01/70 00:00 | |
| A51 | 01/01/70 00:00 | |
| You mean C51 ? | 01/01/70 00:00 | |
| then what is this addressing? | 01/01/70 00:00 | |
| Addressing a RAM chip | 01/01/70 00:00 | |
| Addressing a RAM chip | 01/01/70 00:00 | |
| ah banking | 01/01/70 00:00 | |
| 80c51 Addressing | 01/01/70 00:00 | |
| Pedantic | 01/01/70 00:00 | |
| ridiculous | 01/01/70 00:00 | |
because | 01/01/70 00:00 | |
| Dereference | 01/01/70 00:00 | |
| Pointer hints | 01/01/70 00:00 | |
| No, that's wrong | 01/01/70 00:00 | |
| struct modelling memory-mapped IO | 01/01/70 00:00 | |
| I think it is time to stop replies to | 01/01/70 00:00 | |
| More pedantically | 01/01/70 00:00 | |
| Pointer hints | 01/01/70 00:00 | |
| start small | 01/01/70 00:00 |