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| comp.lang.forth | Forth programmers eat a lot of Bratwurst | 117,927 messages |
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| Message 116,985 of 117,927 |
| dxf to Bernd Linsel |
| Re: FP number syntax |
| 01 Jan 25 16:17:42 |
From: dxforth@gmail.com On 1/01/2025 2:42 pm, Bernd Linsel wrote: > On 01.01.25 01:45, dxf wrote: > >> >> To support DPL I have >NUMBER increment it for every digit successfully >> converted. While most systems today have DPL (?) usage is probably too >> diverse to standardize. >> > > It's documented in F83 Annex B (Uncontrolled Reference Words): Those being mostly words from Kitt Peak Forth. > >      DPL         -- addr                     U             "d-p-l" >           A variable containing the number of places after the >           fractional point for input conversion. > > It's usually implemented that DPL is reset to -1 when entering >NUMBER, > each successful digit conversion increments it only if it is >= 0, and the first decimal separator encountered changes it from -1 to 0. Yes, in Fig-Forth. In Swiftforth DPL is just a flag. Now you've got me wondering why Fig does the 'test before increment' and I left it out ... --- SoupGate-DOS v1.05 * Origin: you cannot sedate... all the things you hate (1:229/2) |
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