[gforth] / gforth / prims2x.fs  

gforth: gforth/prims2x.fs

Diff for /gforth/prims2x.fs between version 1.121 and 1.129

version 1.121, Sun Nov 24 13:54:01 2002 UTC version 1.129, Mon Jan 20 17:07:38 2003 UTC
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     cell% 2* field stack-pointer \ stackpointer name      cell% 2* field stack-pointer \ stackpointer name
     cell%    field stack-type \ name for default type of stack items      cell%    field stack-type \ name for default type of stack items
     cell%    field stack-in-index-xt \ ( in-size item -- in-index )      cell%    field stack-in-index-xt \ ( in-size item -- in-index )
       cell%    field stack-access-transform \ ( nitem -- index )
 end-struct stack%  end-struct stack%
   
 struct%  struct%
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     1 next-stack-number +!      1 next-stack-number +!
     r@ stack-type !      r@ stack-type !
     save-mem r@ stack-pointer 2!      save-mem r@ stack-pointer 2!
     ['] stack-in-index r> stack-in-index-xt ! ;      ['] stack-in-index r@ stack-in-index-xt !
       ['] noop r@ stack-access-transform !
       rdrop ;
   
 : map-stacks { xt -- }  : map-stacks { xt -- }
     \ perform xt for all stacks      \ perform xt for all stacks
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 \ stack access stuff  \ stack access stuff
   
 : normal-stack-access1 ( n stack -- )  : normal-stack-access0 { n stack -- }
     stack-pointer 2@ type      n stack stack-access-transform @ execute ." [" 0 .r ." ]" ;
     dup  
     if  : normal-stack-access1 { n stack -- }
         ." [" 0 .r ." ]"      stack stack-pointer 2@ type
       n if
           n stack normal-stack-access0
     else      else
         drop ." TOS"          ." TOS"
     endif ;      endif ;
   
 : normal-stack-access ( n stack -- )  : normal-stack-access ( n stack -- )
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     stack stack-out @ 0<> stack stack-in @ 0= and      stack stack-out @ 0<> stack stack-in @ 0= and
     if      if
         ." IF_" stack stack-pointer 2@ 2dup type ." TOS("          ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
         2dup type ." [0] = " type ." TOS);" cr          2dup type 0 stack normal-stack-access0 ."  = " type ." TOS);" cr
     endif ;      endif ;
   
 : flush-tos ( -- )  : flush-tos ( -- )
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     stack stack-out @ 0= stack stack-in @ 0<> and      stack stack-out @ 0= stack stack-in @ 0<> and
     if      if
         ." IF_" stack stack-pointer 2@ 2dup type ." TOS("          ." IF_" stack stack-pointer 2@ 2dup type ." TOS("
         2dup type ." TOS = " type ." [0]);" cr          2dup type ." TOS = " type 0 stack normal-stack-access0 ." );" cr
     endif ;      endif ;
   
 : fill-tos ( -- )  : fill-tos ( -- )
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 : fetches ( -- )  : fetches ( -- )
     prim prim-effect-in prim prim-effect-in-end @ ['] fetch map-items ;      prim prim-effect-in prim prim-effect-in-end @ ['] fetch map-items ;
   
   : stack-update-transform ( n1 stack -- n2 )
       \ n2 is the number by which the stack pointer should be
       \ incremented to pop n1 items
       stack-access-transform @ dup >r execute
       0 r> execute - ;
   
 : stack-pointer-update { stack -- }  : stack-pointer-update { stack -- }
     \ stack grow downwards      \ stacks grow downwards
     stack stack-diff      stack stack-diff
     ?dup-if \ this check is not necessary, gcc would do this for us      ?dup-if \ this check is not necessary, gcc would do this for us
         stack inst-stream = if          stack inst-stream = if
             ." INC_IP(" 0 .r ." );" cr              ." INC_IP(" 0 .r ." );" cr
         else          else
             stack stack-pointer 2@ type ."  += " 0 .r ." ;" cr              stack stack-pointer 2@ type ."  += "
               stack stack-update-transform 0 .r ." ;" cr
         endif          endif
     endif ;      endif ;
   
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     endif      endif
     2drop ;      2drop ;
   
   : output-nextp2 ( -- )
       ." NEXT_P2;" cr ;
   
   variable tail-nextp2 \ xt to execute for printing NEXT_P2 in INST_TAIL
   ' output-nextp2 tail-nextp2 !
   
 : output-label2 ( -- )  : output-label2 ( -- )
     ." LABEL2(" prim prim-c-name 2@ type ." )" cr      ." LABEL2(" prim prim-c-name 2@ type ." )" cr
     ." NEXT_P2;" cr ;      ." NEXT_P2;" cr ;
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     xt execute ;      xt execute ;
   
 : output-c-tail ( -- )  : output-c-tail ( -- )
     ['] noop output-c-tail1 ;      tail-nextp2 @ output-c-tail1 ;
   
 : output-c-tail2 ( -- )  : output-c-tail2 ( -- )
     ['] output-label2 output-c-tail1 ;      ['] output-label2 output-c-tail1 ;
   
 : output-c-tail-no-stores ( -- )  : output-c-tail-no-stores ( -- )
     ['] noop output-c-tail1-no-stores ;      tail-nextp2 @ output-c-tail1-no-stores ;
   
 : output-c-tail2-no-stores ( -- )  : output-c-tail2-no-stores ( -- )
     ['] output-label2 output-c-tail1-no-stores ;      ['] output-label2 output-c-tail1-no-stores ;
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 : output-alias ( -- )  : output-alias ( -- )
     ( primitive-number @ . ." alias " ) ." Primitive " prim prim-name 2@ type cr ;      ( primitive-number @ . ." alias " ) ." Primitive " prim prim-name 2@ type cr ;
   
 : output-prim-num ( -- )  : output-c-prim-num ( -- )
     prim prim-num @ 8 + 4 .r space prim prim-name 2@ type cr ;      ." #define N_" prim prim-c-name 2@ type prim prim-num @ 8 + 4 .r cr ;
   
 : output-forth ( -- )  : output-forth ( -- )
     prim prim-forth-code @ 0=      prim prim-forth-code @ 0=
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     r> in-part ! ;      r> in-part ! ;
   
 : part-stack-pointer-updates ( -- )  : part-stack-pointer-updates ( -- )
     max-stacks 0 +do      next-stack-number @ 0 +do
         i part-num @ 1+ s-c-max-depth @ dup          i part-num @ 1+ s-c-max-depth @ dup
         i num-combined @ s-c-max-depth @ =    \ final depth          i num-combined @ s-c-max-depth @ =    \ final depth
         swap i part-num @ s-c-max-depth @ <> \ just reached now          swap i part-num @ s-c-max-depth @ <> \ just reached now
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 (( (( ` g || ` G )) {{ start }} nonl **  (( (( ` g || ` G )) {{ start }} nonl **
    {{ end     {{ end
       forth-flag @ IF  ." group " type cr  THEN        forth-flag @ IF  ." group " type cr  THEN
       c-flag @     IF  ." GROUP(" type ." )" cr  THEN }}        c-flag @     IF  ." GROUP(" type ." , " function-number @ 0 .r ." )" cr  THEN }}
 )) <- group-comment  )) <- group-comment
   
 (( (( eval-comment || forth-comment || c-comment || else-comment || if-comment || group-comment )) ?? nonl ** )) <- comment-body  (( (( eval-comment || forth-comment || c-comment || else-comment || if-comment || group-comment )) ?? nonl ** )) <- comment-body

Generate output suitable for use with a patch program
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Removed from v.1.121  
changed lines
  Added in v.1.129
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