I hadn't realized that you had provided this exact mechanism as part of your
pcall enhancement. Very nice and interesting. Does it work in linux and mac?
I thought some hosts would balk at executing machine instructions from data
memory.
Although useful in some circumstances, I would recommend that in general
following the normal route of generating and using a shared library is
prefered.
----- Original Message -----
From: "Oleg Kobchenko" <[EMAIL PROTECTED]>
To: "Programming forum" <[email protected]>
Sent: Saturday, July 14, 2007 12:51 AM
Subject: Re: [Jprogramming] J API
Note that right now you can see and try it with
the pcall addon:
http://www.jsoftware.com/svn/addons/trunk/general/pcall/test_asm.ijs
The asm codes are parsed by J, put into a noun
and executed. The codes are from output
of assembler or C compiler.
sumProc=: noun asmdefine
;int __stdcall sum(int n, int* y)
00050 55 push ebp
00051 8b ec mov ebp, esp
00055 33 c0 xor eax, eax
....
0006e c2 08 00 ret 8
)
sum=: [: 'cp2 > i i i *i' pcall (symdat symget <'sumProc') ; (;~#)
(sum -: +/) i.1e4
1
--- Don Guinn <[EMAIL PROTECTED]> wrote:
Sounds great! Will be watching for j602.
On 7/13/07, Raul Miller <[EMAIL PROTECTED]> wrote:
>
> On 7/13/07, Don Guinn <[EMAIL PROTECTED]> wrote:
> > I thought that cd (15!:0) established a special environment to call a
> DLL
> > and could only interface to DLLs. And the DLL had to reside in a
> > library
> as
> > a file of type DLL. How would I use cd to call a program that resided
> > in
> a J
> > noun?
>
> As I understand it:
>
> [*] cd brings an image of the DLL into the current environment.
>
> [2] j6.02 which should have the option of referring to pre-existing
> memory
> (other than a DLL).
>
> --
> Raul
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
>
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