Marrying a von Neumann architecture (MSP430) with a Harvard architecture (AVR8)... Hope the offspring would come out normal :-)
Good luck, Enoch. ---------------------------------------------------------------------- Matthias Trute <mtr...@web.de> writes: > Hi John and Brad, > >> This cross-pollination >> should benefit both communities: MSP430/CamelForth and AVR/Amforth. > > I hope so. Exchanging forth code would be great. Flashforth recently > imported the I2C routines from amforth. I haven't looked > at the details, but my impression is, that it was not a > 1:1 import. If either side now makes a change, the > code base diverges and that is bad. My dream is, that different > forth's and different forth vendors come together and create > a common code base for basic routines: I2C, LC displays, PWM, > TCP/IP, 1-wire, you name it. A system like camelforth that is > available for many platforms has/may have less trouble here. > > Amforth has got some features that are not very common > among microcontroller forth's: exceptions, wordlists, recognizers. > I see no reason why they can't be common code that is used verbatim > in different systems. Exceptions as written by Mitch some 20 years > ago are a good example. Small, clean and almost portable (some stack > pointer voodoo, the basic words are needed anyway) My combined > source tree has them that way for both systems. Stack pointer > handling in avr8/msp430, throw/catch in common. > > Wordlists and recognizers depend on a persistent configuration > stack, the interface are system specific map-stack/get-stack/ > set-stack words. Everything else is common code. > > With the camelforth merge I can see which words are really > specific and which are common. Having a single file for each > word definition is a good thing (tm). > > Another thing are tastes like ACCEPT. Some behaviours > could be seen as bugs: My version of it does no longer > underruns the terminal line with backspaces, it stops > at index 0 at the terminal output echo as well. Nothing > to worry about. > > Another is that I love the unix shell look'n'feel: the enter > key starts a new line where the program output is placed. > The usual forth command prompt > > > 1 2 + . 3 ok > > > > is confusing to me. Where did the user input stop and the program > output starts? I work with shell prompts all day, so I'm used to > > > 1 2 + > 3 ok > > > > Here we will never reach consensus, we should not try to pretend > achieving it. ACCEPT *may* be common code, system specific can > override it however. > > A remark to naken_asm > > It is a great tool. I love it. > > Amforth started with another opensource assembler > (avra) that unfortunately died shortly thereafter so I had > to use the Atmel assembler. naken_asm would be the number one > tool if it could handle the amforth sources without (much) > changes. I'd love to keep the Atmel assembler working, for > two reasons: many amforth users use windows and like it > and the other is the bad experience with avra. Atmel has > an interest in selling chips... the avra people lost interest. > >> A minor correction: TI did sell a Stellaris Launchpad that used an >> ARM-based micro, but I believe that you're referring to the MSP430 >> Launchpad here. > > Oops, the box I unpacked is labelled MSP430 Value Line / Launchpad > Development Tool. Another, very similar looking box is labelled > Stellaris Launchpad LM4F120, an ARM system it seems. Good that > I picked the right one. I should ask my friends from forth-ev > what they sent me. Looks like a trojan horse. Mike? ;) > > Matthias > > ------------------------------------------------------------------------------ > Comprehensive Server Monitoring with Site24x7. > Monitor 10 servers for $9/Month. > Get alerted through email, SMS, voice calls or mobile push notifications. > Take corrective actions from your mobile device. > http://pubads.g.doubleclick.net/gampad/clk?id=154624111&iu=/4140/ostg.clktrk ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk _______________________________________________ Amforth-devel mailing list for http://amforth.sf.net/ Amforth-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/amforth-devel
