| ??? 01/13/11 16:22 Read: times |
#180558 - Dereferencing a '_REG Responding to: ???'s previous message |
<style_opinion>
The '_REG macro names are a little misleading. What they expand to are not registers, but rather register addresses ('_ADDR) or pointers ('_PTR). To be a '_REG, the macro should include '*' to dereference the pointer. When I see the '*' deferencing a '_REG in the code, to me that means that the '_REG value is an address. Instead: #define PHYTEC_MASK_REG *(unsigned char xdata *)0xFC03 PHYTEC_MASK_REG=0x7C; </style_opinion> |
| Topic | Author | Date |
| sdcc internal error / C syntax | 01/01/70 00:00 | |
| legality of indexing NULL pointer | 01/01/70 00:00 | |
| bug | 01/01/70 00:00 | |
| version | 01/01/70 00:00 | |
| version revisited | 01/01/70 00:00 | |
| thank you | 01/01/70 00:00 | |
| Fixed | 01/01/70 00:00 | |
| no snapshot | 01/01/70 00:00 | |
| works | 01/01/70 00:00 | |
| 0 is special - but so is NULL. indexing around NULL is bad | 01/01/70 00:00 | |
| No guarantee that a NULL pointer points to any memory | 01/01/70 00:00 | |
| time | 01/01/70 00:00 | |
| I know :-( | 01/01/70 00:00 | |
| Use of __at ? | 01/01/70 00:00 | |
| What is "that way"? | 01/01/70 00:00 | |
| the antique version.... | 01/01/70 00:00 | |
| XBYTE macro | 01/01/70 00:00 | |
| Okay, then the following definition... | 01/01/70 00:00 | |
| RE: David's remarks about volatility | 01/01/70 00:00 | |
| Close, but no cigar | 01/01/70 00:00 | |
| Avoid the 'volatile' | 01/01/70 00:00 | |
| instead of offsetting... | 01/01/70 00:00 | |
| Dereferencing a '_REG | 01/01/70 00:00 | |
I agree | 01/01/70 00:00 | |
| Use of __at ? [ed] | 01/01/70 00:00 |