Unless your chip has a hardware floating point unit, you're stuck using software float operations. They're slower, though not extraordinarily so. But the main drawback is the floating point library can massively inflate your code size to the point that it no longer fits in available memory.
If you can get away with it, it's fine, but when you can't it's a huge problem.
Unless your chip has a hardware floating point unit, you're stuck using software float operations. They're slower, though not extraordinarily so. But the main drawback is the floating point library can massively inflate your code size to the point that it no longer fits in available memory.
If you can get away with it, it's fine, but when you can't it's a huge problem.