Re: [IBM1130] Digest for ibm1130@googlegroups.com - 4 updates in 1 topic

[Mickey Cohen]

Well....in every excel these days there is PowerQuery under the data tab. The programming language of this PowerQuery is called M-Language.

M-Language is a far decedent of .... Forth... 

Best,

Mickey

On Wed, May 20, 2020 at 10:07 AM <ibm...@googlegroups.com> wrote:

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• FOURTH ... oops, it's an 1130. - 4 Updates

FOURTH ... oops, it's an 1130.

Danyel Lawson <danyel...@gmail.com>: May 19 02:49PM -0700 I thought the whole point of forth was that you don't need the source code for a specific platform as you only need to implement a few forth instructions like ADD to get the forth compiler to compile for that platform..   On Saturday, May 16, 2020 at 6:26:45 PM UTC-4, Bob Flanders wrote:

Bob Flanders <bob.fl...@gmail.com>: May 19 02:57PM -0700 Hi Danyel,   That's true with more modern Forth systems. Just implement relatively few primitive at the low level and the rest should just work. But this is not modern, this is the first Forth system ever. Even then, it was a relatively small amount of pure assembler then the rest was (proto-) Forth.   Bob   On Tuesday, May 19, 2020 at 5:49:04 PM UTC-4, Danyel Lawson wrote:

John Pierce <jhn.p...@gmail.com>: May 19 02:58PM -0700 On Tue, May 19, 2020 at 2:49 PM Danyel Lawson <danyel...@gmail.com> wrote:   > for a specific platform as you only need to implement a few forth > instructions like ADD to get the forth compiler to compile for that > platform..   FORTH uses a threaded interpreter. the 4-5 pages of assembler code referenced on that post consist of the entirety of that interpreter, plus the core intrinsic functions..     -- -john r pierce recycling used bits in santa cruz

Charles Anthony <charles....@gmail.com>: May 19 03:35PM -0700 On Tuesday, May 19, 2020 at 2:49:04 PM UTC-7, Danyel Lawson wrote: > for a specific platform as you only need to implement a few forth > instructions like ADD to get the forth compiler to compile for that > platform..   Mostly true, but the simple design allows great flexibility in implementation. On some given architecture, an implentor make choices that may require major rewrites, but keep that FORTHish nature. Eg. indirect threaded vs. direct; on machines with words larger then the addresses, embedding operands in the word, and others. FIG-Forth was a common standard and had many high-fidelity implementations on 8 bit word size machines, and good implementations on 16 bit word machines. Other word sizes gave opportunity for experimentation. I have been toying around with a 36 bit word implemetnation and am working towards a unique FORTH that will still be recognizible as FORTH, but might require handstands to port code to.   -- Charles

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[Nick Seidenman]

PostScript?

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