That beautiful is.
Forth
11–20 of 56 posts
Re: Forth
#12Re: Forth
#13Prediction: someone will make a reverse polish notation skill for interacting with claude claiming all sorts of things, like caveman, turn into another markdown as a service company, and make the news.
Re: Forth
#14Can someone explain for me?
A different way to say the same: in forth, words get pushed on the stack, and popped from the stack by words that take arguments: code stack I Forth love Forth love I love I Forth ; love presumably pops ; subject, object args ; from stack - and does something ; perhaps prints as side effect
Is that loss?
Re: Forth
#15I first thought this was some spin on May the fourth be with you. As in how Yoda might say it.
Re: Forth
#16Earlier quoted context omitted.
Forth I assume uses reverse polish notation: arguments before the operator. 3 4 + for example, would return 7.
> would return 7 more pedantically, it would push 7 onto the stack
even more pedantically, would remove 3 and 4 from the stack before pushing 7
Re: Forth
#17Slightly OT, but nothing can beat DonHopkins’s “About” section here on HN [0].
Re: Forth
#18I never noticed the disclaimer at the bottom until today
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Re: Forth
#19Can someone explain for me?
A different way to say the same: in forth, words get pushed on the stack, and popped from the stack by words that take arguments: code stack I Forth love Forth love I love I Forth ; love presumably pops ; subject, object args ; from stack - and does something ; perhaps prints as side effect
Here is some inexplicably but meticulously formatted FORTH code that uses right justified indentation! Including reverse polish notation assembley.
https://donhopkins.com/home/code/tomt-cam-forth-scr.txt
https://donhopkins.com/home/code/tomt-users-forth-scr.txt
( FMOVE -- functional intersegment move ) HEX
88 CONSTANT *MOV* ( fn = 0 ) 20 CONSTANT *AND* ( fn = 1 )
08 CONSTANT *OR* ( fn = 2 ) 30 CONSTANT *XOR* ( fn = 3 )
CODE FMOVE ( fn s.seg s.off d.seg d.off length --) AX, SI MOV
CX POP DI POP ES POP SI POP DS POP DX POP AX PUSH
AL, # *XOR* MOV DX, # 3 CMP 1$ JE
AL, # *OR* MOV DX, # 2 CMP 1$ JE
AL, # *AND* MOV DX, # 1 CMP 1$ JE
AL, # *MOV* MOV 1$:
CS: HERE 5 + , AL MOV ( modify "[DI], AL MOV" ) 2$:
LODS ES: [DI], AL MOV DI INC 2$ LOOP
AX, CS MOV ES, AX MOV DS, AX MOV SI POP NEXT, END-CODE
-->Re: Forth
#20Earlier quoted context omitted.
> would return 7 more pedantically, it would push 7 onto the stack
even more pedantically, would remove 3 and 4 from the stack before pushing 7
Even oddly more pedantically, that's the operand stack, not to be confused with the separate return stack. >R and R> move values between the two stacks.
On the other hand, PostScript also has a dictionary stack, which you can use to implement a Smalltalk-like object oriented programming system. And its data types and executable code are basically polymorphic homoiconic JSON (like Lisp), not raw untyped bytes like FORTH.