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Annotation of gforth/code.fs, revision 1.1

1.1     ! anton       1: \ ASSEMBLER, CODE etc.
        !             2: 
        !             3: \ does not include the actual assembler (which is machine-dependent),
        !             4: \ only words like CODE that are implementation-dependent, but can be
        !             5: \ defined for all machines.
        !             6: 
        !             7: vocabulary assembler ( -- ) \ tools-ext
        !             8: 
        !             9: : init-asm ( -- )
        !            10:     also assembler ;
        !            11: 
        !            12: : code ( -- colon-sys )        \ tools-ext
        !            13:     \ start a native code definition
        !            14:     header here >body cfa, defstart init-asm ;
        !            15: 
        !            16: : (;code) ( -- ) \ gforth
        !            17:     \ execution semantics of @code{;code}
        !            18:     r> lastxt code-address! ;
        !            19: 
        !            20: : ;code ( colon-sys1 -- colon-sys2 )   \ tools-ext     semicolon-code
        !            21:     ( create the [;code] part of a low level defining word )
        !            22:     state @
        !            23:     IF
        !            24:        ;-hook postpone (;code) ?struc postpone [
        !            25:     ELSE
        !            26:        align here lastxt code-address!
        !            27:     THEN
        !            28:     defstart init-asm ; immediate
        !            29: 
        !            30: : end-code ( colon-sys -- )    \ gforth        end_code
        !            31:     ( end a code definition )
        !            32:     lastxt here over - flush-icache
        !            33:     previous ?struc reveal ;