| ??? 03/12/11 13:22 Read: times |
#181560 - Optimal for what? Responding to: ???'s previous message |
Maarten Brock said:
I don't know what Keil does, but SDCC passes bool parameters at fixed addresses just like all other parameters for non-reentrant functions. Keil can pass parameters in Registers, and only uses fixed locations when it runs out of registers. Their register usage is documented for everything except bit parameters. This is what I considered optimal. Do you mean optimal for passing bit parameters, or optimal as an implementation of a boolean data type? |
| Topic | Author | Date |
| bit type function parameter | 01/01/70 00:00 | |
| Look at instruction set | 01/01/70 00:00 | |
| What is your actual problem here? | 01/01/70 00:00 | |
| main concern is code operation. | 01/01/70 00:00 | |
| parameter converted to global variable | 01/01/70 00:00 | |
| No reentrancy | 01/01/70 00:00 | |
| Is it the 8051 instruction set? | 01/01/70 00:00 | |
| Still looked at the bit capabilities of the processor? | 01/01/70 00:00 | |
| You need to ask Keil | 01/01/70 00:00 | |
| Use bool to simplify | 01/01/70 00:00 | |
| BOOLEAN directive used | 01/01/70 00:00 | |
| stdbool | 01/01/70 00:00 | |
| Use stdbool | 01/01/70 00:00 | |
| Optimal implementation | 01/01/70 00:00 | |
| SDCC | 01/01/70 00:00 | |
| Optimal for what? | 01/01/70 00:00 | |
both | 01/01/70 00:00 |