> on MCUs without a hardware implementation.  On these small MCUs,
> fp is slow and I was arguing the only meaningful gain could be
> in code size but I don't think there would be much difference in
> code size between a short float and regular float implementation.

Fpr a lpt of these devices the gain would be between using existing OS
provided (non IEEE) 'short float' formats. Right now for example on the
Sinclair machines there is a full rather nice non IEEE floating point
built into the ROM but while it's useful it's rather "interesting" to use
from SDCC. Similarly on the Amstrad CPC boxes. 

For me "short float" or similar would actually be useful as a "native non
IEEE" format indicator - but then you've got to know how to encode floats
and what the target float format is which is a large can of worms.

Alan

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