| ??? 12/15/03 07:30 Read: times |
#60603 - RE: Call C Func. from Asm program? Responding to: ???'s previous message |
I'm trying to interface a DAC to my 8052 to create a sine wave. I know there is a function in C (sin())... That will necessitate including the whole 'C' floating point support in your program, and coping with the floating-point result in your assembler. It would probably be much easier just to use a lookup table in assembler. Michael Karas recently presented an easy way to generate lookup tables using Excel - do a 'Search' I have seen that there is a way to have an assembly language program call a C function from another file, but they omitted a good example. You will need to read the section(s) on internal data representation and calling convention in the compiler manual. The Keil C51 manual has a section specifically titled "Interfacing 'C' and assembler" To see an example, why not just look at the assembler generated by the compiler itself!? |
| Topic | Author | Date |
| Call C Func. from Asm program? | 01/01/70 00:00 | |
| RE: Call C Func. from Asm program? | 01/01/70 00:00 | |
| Sledgehammer to crack nut? | 01/01/70 00:00 | |
| RE: Call C Func. from Asm program? | 01/01/70 00:00 | |
| RE: Excel | 01/01/70 00:00 | |
RE: 8-Bit Sin Lookup Table !! | 01/01/70 00:00 |