pfe-tools-misc-ext ? TOOLS-Misc Compatibility words
VLIST ( -- ) ?=>? ( | ) ; | ? |
[FORTH]
;!CSP ( -- ) ?=>? ( | ) ; | ? |
[FORTH]
;?CSP ( -- ) ?=>? ( | ) ; | ? |
[FORTH]
;CS-SWAP ?=>? ( | ) ; | ? |
[FORTH]
;CS-DROP ?=>? ( | ) ; | ? |
[FORTH]
;?COMP ( -- ) ?=>? ( | ) ; | ? |
[FORTH]
;?EXEC ( -- ) ?=>? ( | ) ; | ? |
[FORTH]
;?FILE ( file-id -- ) ?=>? ( | ) ; | ? |
[FORTH]
;?LOADING ( -- ) ?=>? ( | ) ; | ? |
[FORTH]
;?PAIRS ( a b -- ) ?=>? ( | ) ; | ? |
[FORTH]
;?STACK ( -- ) ?=>? ( | ) ; | ? |
[FORTH]
;DEFINED ( "name" -- flag ) ?=>? ( | ) ; | ? |
[FORTH]
;[DEFINED] ( "name" -- flag ) ?=>? ( | ) ; | ? |
[FORTH]
;[UNDEFINED] ( "name" -- flag ) ?=>? ( | ) ; | ? |
[FORTH]
;(FORGET) ?=>? ( | ) ; | ? |
"EXTENSIONS"
;(DICTLIMIT) ?=>? ( | ) ; | ? |
"EXTENSIONS"
;(DICTFENCE) ?=>? ( | ) ; | ? |
"EXTENSIONS"
;DICTLIMIT ( -- var* ) * the lower end of usable area - the forth memory block minus the * forth-related DICTALLOCS at the upper end (e.g. => POCKET-PAD ) * Note that this is a variable by tradition but you should not move it.
VLIST ( -- ) => [FORTH]
The VLIST command had been present in FIG and other forth
implementations. It has to list all accessible words. In PFE
it list all words in the search order. Well, the point is,
that we do really just look into the search order and are
then calling WORDS
on that Wordl. That way you can see
all accessible words in the order they might be found.
Uses => ?CR
!CSP ( -- ) => [FORTH]
put SP
into CSP
used in control-words
?CSP ( -- ) => [FORTH]
check that SP
== CSP
otherwise THROW
used in control-words
CS-SWAP - no description, sorry
CS-DROP - no description, sorry
?COMP ( -- ) => [FORTH]
check that the current STATE
is compiling
otherwise THROW
often used in control-words
?EXEC ( -- ) => [FORTH]
check that the current STATE
is executing
otherwise THROW
often used in control-words
?FILE ( file-id -- ) => [FORTH]
check the file-id otherwise (fixme)
?LOADING ( -- ) => [FORTH]
check that the currently interpreted text is
from a file/block, otherwise THROW
?PAIRS ( a b -- ) => [FORTH]
if compiling, check that the two magics on
the CS-STACK
are identical, otherwise throw
used in control-words
?STACK ( -- ) => [FORTH]
check all stacks for underflow and overflow conditions,
and if such an error condition is detected THROW
DEFINED ( "name" -- flag ) => [FORTH]
Search the dictionary for _name_. If _name_ is found, return TRUE; otherwise return FALSE. Immediate for use in definitions.
This word will actually return what FIND
returns (the NFA).
does check for the word using find (so it does not throw like '
)
and puts it on stack. As it is immediate it does work in compile-mode
too, so it places its argument in the cs-stack then. This is most
useful with a directly following [IF]
clause, so that sth. like
an [IFDEF] word
can be simulated through [DEFINED] word [IF]
: DEFINED BL WORD COUNT (FIND-NFA) ;
[DEFINED] ( "name" -- flag ) => [FORTH]
Search the dictionary for _name_. If _name_ is found, return TRUE; otherwise return FALSE. Immediate for use in definitions.
[DEFINED] word ( -- nfa|0 ) immediate
does check for the word using find (so it does not throw like '
)
and puts it on stack. As it is immediate it does work in compile-mode
too, so it places its argument in the cs-stack then. This is most
useful with a directly following [IF]
clause, so that sth. like
an [IFDEF] word
can be simulated through [DEFINED] word [IF]
: [DEFINED] BL WORD FIND NIP ; IMMEDIATE
[UNDEFINED] ( "name" -- flag ) => [FORTH]
Search the dictionary for _name_. If _name_ is found, return FALSE; otherwise return TRUE. Immediate for use in definitions.
see [DEFINED]
(FORGET) - no description, sorry
(DICTLIMIT) - no description, sorry
(DICTFENCE) - no description, sorry