By Bezemer J.L.

Do not you hate it? you could have simply acquired a brand new programming language and you are attempting to write your first software. you need to use a definite characteristic (you be aware of it has got to be there) and also you cannot locate it within the manual.I've had that have repeatedly. So during this handbook you will discover many brief good points on all type of subject matters. find out how to enter a bunch from the keyboard, what a telephone is, etc.I desire it will allow you to get speedy in your method. If it did not, e mail me at 'hansoft@bigfoot.com'. you won't in simple terms get a solution, yet you'll aid destiny Forth clients as well.You can use this handbook methods. you could both simply get what you would like or paintings your manner via. each part builds at the wisdom you got within the past sections. All sections are grouped into degrees. we propose you to exploit what you have got discovered after you could have labored your approach via a level.If this is not adequate to coach you Forth you could constantly get a true reliable textbook on Forth, like ''Starting Forth'' by way of Leo Brodie. rejoice!

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And so Forth

Do not you hate it? you have simply obtained a brand new programming language and you are attempting to write your first application. you must use a definite characteristic (you understand it has got to be there) and also you cannot locate it within the handbook. i have had that have repeatedly. So during this guide you will discover many brief good points on all form of themes.

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ARRAYS AND STRINGS 42 Then we want to print the rest of the number (which is at least one digit): # # char . hold #s $ Finally we want to print the character "$". Another job for ’HOLD’: # # char . hold #s char $ hold So this is our formatting word: : currency <# # # [char] . hold #s [char] $ hold #> type cr ; And we call it like this: 200016 currency You can do some pretty complex stuff with these formatting words. Try to figure out this one from the master himself, Leo Brodie: : sextal 6 base !

We can use this to create a word that converts a number to a string. Because the PAD is highly volatile, we have to move the string immediately after its creation. So we’ll create a word that not only creates the string, but moves it directly to its proper location: : >string >r dup >r abs s>d <# #s r> sign #> r@ char+ swap dup >r cmove r> r> c! ; ( n a -- ) It takes a number, the address of a string and returns nothing. 1 The address of a colon-definition You can get the address of a colon definition by using the word ”’ (tick): : add + ; ’ add .

It returns the value in the appropriate field and a flag. If the flag is false, the value was not found. Now, how do we apply this to our month table? fs" included 0 Constant NULL create MonthTable 1 , $" January " , 2 , $" February " , 3 , $" March " , 4 , $" April " , 5 , $" May " , 6 , $" June " , 7 , $" July " , 8 , $" August " , 9 , $" September" , 10 , $" October " , 11 , $" November " , 12 , $" December " , NULL , Note that this table is sorted, but that doesn’t matter. It would work just as well when it was unsorted.

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And so Forth by Bezemer J.L.
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