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Add ":" and ";" !

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Koichi Nakamura 2020-12-31 20:23:08 +09:00
parent b5e2b68f96
commit f11179089e
1 changed files with 35 additions and 0 deletions
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35
core.fs
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@ -336,4 +336,39 @@ I \ Enter 2nd Stage
r C + R \ Drop 1st stage interpreter from call stack
\ : ( "<spaces>name" -- R:w ) COLON
\ Read name, create word, push it to return stack,
\ compile 'docol' and enter compile mode.
c : i ,
\ save the address of the word to
\ **2nd position** of return stack.
\ Same reasons for TOR and FROMR
' h , ' @ , ' # ,
' } , ' ~ , ' { , ' { ,
' l , ' @ , ' , , \ fill link
' W , \ read name ( addr len )
' # , ' B , \ fill length ( addr len )
' m , \ fill name
' A , \ align here
' i , ' , , \ compile docol
\ enter compile mode
' L , k 1 k 0 - , ' M , ' ! ,
' e , l !
\ ; immediate ( R:w -- ) SEMICOLON
\ Compile 'exit', add w to dictionary and enter immediate mode.
c ; i ,
' L , ' e , ' , , \ compile exit
\ pick 2nd element of return stack
' } , ' } , ' ~ , ' { ,
' l , ' ! , \ update latest
\ enter immediate mode
' L , k 0 k 0 - , ' M , ' ! ,
' e , l !
\ Toggle immediate-bit of ';'
l @ C + # { ? k @ k @ + | } $
Q