28 May
2011
28 May
'11
6:30 p.m.
If I recall correctly what I said, the device-tree property cell size is _always_ 32-bit, regardless of what the internal cell size is.
Don't call that "cell size" :-) The OF standard calls it "a 32-bit integer as encoded by encode-int".
- The cell size presented to FCode version 2 drivers (plug-in cards),
which is emulated to be 32 bits.
Do you mean the size of (lit) here? That's 32-bit signed always, yes. The FCode cell size is the same as the Forth cell size. Most FCode programs written for 32-bit systems work as-is on 64-bit systems; some need some fixes. Programs that need 64-bit numbers (for example, for devices that have 64-bit registers) need some careful coding.
Segher