Talk About Network

Google


Register and Login
Nick
Password
Register create new account Sign up is FREE and you can post replies, new topics, bookmark posts and more!
Recover lost password


Programming > Forth > Re: Separated h...
Latest [ Topics | Posts ] Archive Post A New Topic Post a Reply
<< Topic < Post Post 3 of 17 Topic 4006 of 4325
Post > Topic >>

Re: Separated headers

by "Maki" <veselic123@[EMAIL PROTECTED] > Apr 21, 2008 at 08:39 PM

<snip>
>
> The header structure;
>
>        [ link field       ] -4  4     lfa
>        [ ' compile,       ] +0  4     ct token -- compile,
>  +---- [ xt ptr field     ]  4  4     xt-ptr
>  |     [ ' comp           ]  8  4     ct token -- comp field
>  |     [ file field       ] 12  4     ffa
>  |     [ view field       ] 16  2     vfa
>  |     [ stk effects      ] 18  2     ste
>  |     [ optimize field   ] 20  2     ofa
>  |     [ count byte       ] 22  1     nfa
>  |     [ the name letters ] 23  n
>  |     [ alignment bytes  ]  0 to 3 bytes for name alignment
>  |
>  |
>  |     [ ct-ptr           ] -4  4     ptr to ct token pair
>  +---> [ xt field         ] +0        xt code field (the xt)
>
>
> The code section points back at the header (ct-ptr). To simplify
> relocation, it's not a strict pointer, but an offset from the xt to
> the header.
<snip>

My forth system (not relocatable) resides in embedded system so I don't
like 
that extra ptr (offset) back to header, but it is simple for >name.

> --
> Regards
> Alex McDonald

Thanks,
M.
 




 17 Posts in Topic:
Separated headers
"Maki" <vese  2008-04-21 12:48:29 
Re: Separated headers
Alex McDonald <blog@[E  2008-04-21 05:30:01 
Re: Separated headers
"Maki" <vese  2008-04-21 20:39:04 
Re: Separated headers
Alex McDonald <blog@[E  2008-04-21 14:38:54 
Re: Separated headers
"Maki" <vese  2008-04-22 00:45:13 
Re: Separated headers
m_l_g3 <m_l_g3@[EMAIL   2008-04-21 07:38:58 
Re: Separated headers
Bruce McFarling <agila  2008-04-21 08:10:01 
Re: Separated headers
"Maki" <vese  2008-04-21 20:27:24 
Re: Separated headers
"Maki" <vese  2008-04-21 21:02:18 
Re: Separated headers
mark4 <i440r@[EMAIL PR  2008-04-21 19:54:54 
Re: Separated headers
"Maki" <vese  2008-04-22 09:33:23 
Re: Separated headers
m_l_g3 <m_l_g3@[EMAIL   2008-04-24 04:35:50 
Re: Separated headers
"Maki" <vese  2008-04-25 11:11:51 
Re: Separated headers
Albert van der Horst <  2008-04-22 18:49:34 
Re: Separated headers
"Mark W. Humphries&q  2008-04-28 03:10:28 
Re: Separated headers
Coos Haak <chforth@[EM  2008-04-28 20:24:51 
Re: Separated headers
"Mark W. Humphries&q  2008-04-28 16:25:31 

Post A Reply:
  Go here to Signup

AddThis Feed Button


About - Advertising - Contact - Frequently Asked Questions - Privacy Policy - Terms of Use - Signup

Contact
tan12V112 Sat Nov 22 17:16:37 CST 2008.