Re: [9fans] A new language for Plan 9

["Bruce Ellis" <bruce.ellis@gmail.com>]

wow, sounds like a freshman assignment. don't steal ".b" from limbo, use limbo.

brucee

On Mon, May 5, 2008 at 11:45 AM, Pietro Gagliardi <pietro10@mac.com> wrote:
> I put up a new Bentley. This has support for, hopefully, all control
> structures:
>
>        if e then                                       if..then
>                s
>        if e then                                       if..then..else
>                        s
>                else
>                        s
>        while e do                              while..do
>                s
>        loop                                    loop (infinite loop)
>                s
>        repeat                                  repeat..until (like
> do..while(!))
>                        s
>                until e
>        for i := e to e [by e] do                       like in pascal, but
> with steps
>                s
>        for i := e downto e [by e] do   like in pascal, but with steps
>                s
>
> The file asm.b is a simple demonstration of the last two.
>
> The Bentley compiler, when built, is named #b, so the 386 compiler (and the
> only one so far) is 8b. The name is changed on build. This is used exactly
> like the C compilers:
>
>        8b asm.b
>        8l -o asm asm.8
>        asm
>
> The -S option produces an Assembly listing, but does not build (the C
> compilers do).
>
> My only regret so far is that for loops generate a medium sized piece of
> spaghetti (yum). See the comment in 8.c for details.
>
> Set for the next release: arguments in procedures, functions, a more
> sophisticated stack size algorithm, bit arrays.
>
>
>