[gforth] / gforth / cross.fs  

gforth: gforth/cross.fs

Diff for /gforth/cross.fs between version 1.160 and 1.177

version 1.160, Mon Apr 17 17:22:38 2006 UTC version 1.177, Fri Nov 11 18:29:09 2011 UTC
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 \ CROSS.FS     The Cross-Compiler                      06oct92py  \ CROSS.FS     The Cross-Compiler                      06oct92py
 \ Idea and implementation: Bernd Paysan (py)  \ Idea and implementation: Bernd Paysan (py)
   
 \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005 Free Software Foundation, Inc.  \ Copyright (C) 1995,1996,1997,1998,1999,2000,2003,2004,2005,2006,2007,2009,2010 Free Software Foundation, Inc.
   
 \ This file is part of Gforth.  \ This file is part of Gforth.
   
 \ Gforth is free software; you can redistribute it and/or  \ Gforth is free software; you can redistribute it and/or
 \ modify it under the terms of the GNU General Public License  \ modify it under the terms of the GNU General Public License
 \ as published by the Free Software Foundation; either version 2  \ as published by the Free Software Foundation, either version 3
 \ of the License, or (at your option) any later version.  \ of the License, or (at your option) any later version.
   
 \ This program is distributed in the hope that it will be useful,  \ This program is distributed in the hope that it will be useful,
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 \ GNU General Public License for more details.  \ GNU General Public License for more details.
   
 \ You should have received a copy of the GNU General Public License  \ You should have received a copy of the GNU General Public License
 \ along with this program; if not, write to the Free Software  \ along with this program. If not, see http://www.gnu.org/licenses/.
 \ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.  
   
 0  0
 [IF]  [IF]
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         1+          1+
     THEN ;      THEN ;
   
 : number? ( string -- string 0 / n -1 / d 0> )  : (number?) ( string -- string 0 / n -1 / d 0> )
     dup >r count snumber? dup if      dup >r count snumber? dup if
         rdrop          rdrop
     else      else
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     then ;      then ;
   
 : number ( string -- d )  : number ( string -- d )
     number? ?dup 0= abort" ?"  0<      (number?) ?dup 0= abort" ?"  0<
     IF      IF
         s>d          s>d
     THEN ;      THEN ;
   
 [THEN]  [THEN]
   
   [IFUNDEF] (number?) : (number?) number? ; [THEN]
   
 \ this provides assert( and struct stuff  \ this provides assert( and struct stuff
 \GFORTH [IFUNDEF] assert1(  \GFORTH [IFUNDEF] assert1(
 \GFORTH also forth definitions require assert.fs previous  \GFORTH also forth definitions require assert.fs previous
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 Plugin for,     ( -- for-token )  Plugin for,     ( -- for-token )
 Plugin loop,    ( do-token / ?do-token -- )  Plugin loop,    ( do-token / ?do-token -- )
 Plugin +loop,   ( do-token / ?do-token -- )  Plugin +loop,   ( do-token / ?do-token -- )
   Plugin -loop,   ( do-token / ?do-token -- )
 Plugin next,    ( for-token )  Plugin next,    ( for-token )
 Plugin leave,   ( -- )  Plugin leave,   ( -- )
 Plugin ?leave,  ( -- )  Plugin ?leave,  ( -- )
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 false DefaultValue backtrace  false DefaultValue backtrace
 false DefaultValue new-input  false DefaultValue new-input
 false DefaultValue peephole  false DefaultValue peephole
   false DefaultValue primcentric
 false DefaultValue abranch  false DefaultValue abranch
 true DefaultValue f83headerstring  true DefaultValue f83headerstring
 true DefaultValue control-rack  true DefaultValue control-rack
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 H  H
 tbits/char bits/byte /  Constant tbyte  tbits/char bits/byte /  Constant tbyte
   
   : >signed ( u -- n )
       1 tbits/char tcell * 1- lshift 2dup and
       IF  negate or  ELSE  drop  THEN ;
   
 \ Variables                                            06oct92py  \ Variables                                            06oct92py
   
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 Ghost (do)      Ghost (?do)                     2drop  Ghost (do)      Ghost (?do)                     2drop
 Ghost (for)                                     drop  Ghost (for)                                     drop
 Ghost (loop)    Ghost (+loop)                   2drop  Ghost (loop)    Ghost (+loop)   Ghost (-loop)   2drop drop
 Ghost (next)                                    drop  Ghost (next)                                    drop
 Ghost (does>)   Ghost (does>1)  Ghost (does>2)  2drop drop  Ghost !does                                     drop
 Ghost compile,                                  drop  Ghost compile,                                  drop
 Ghost (.")      Ghost (S")      Ghost (ABORT")  2drop drop  Ghost (.")      Ghost (S")      Ghost (ABORT")  2drop drop
 Ghost (C")      Ghost c(abort") Ghost type      2drop drop  Ghost (C")      Ghost c(abort") Ghost type      2drop drop
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   prim# @ (THeader ( S xt ghost )    prim# @ (THeader ( S xt ghost )
   ['] prim-resolved over >comp !    ['] prim-resolved over >comp !
   dup >ghost-flags <primitive> set-flag    dup >ghost-flags <primitive> set-flag
   over resolve-noforwards T A, H alias-mask flag!    s" EC" T $has? H 0=
     IF
         over resolve-noforwards T A, H
         alias-mask flag!
     ELSE
         T here H resolve-noforwards T A, H
     THEN
   -1 prim# +! ;    -1 prim# +! ;
 >CROSS  >CROSS
   
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   there xt>body + ca>native T a, H 1 fillcfa ;          ' (doprim,) plugin-of doprim,    there xt>body + ca>native T a, H 1 fillcfa ;          ' (doprim,) plugin-of doprim,
   
 : (doeshandler,) ( -- )  : (doeshandler,) ( -- )
   T cfalign H [G'] :doesjump addr, T 0 , H ;            ' (doeshandler,) plugin-of doeshandler,      T H ;                                       ' (doeshandler,) plugin-of doeshandler,
   
 : (dodoes,) ( does-action-ghost -- )  : (dodoes,) ( does-action-ghost -- )
   ]comp [G'] :dodoes addr, comp[    ]comp [G'] :dodoes addr, comp[
   addr,    addr,
   \ the relocator in the c engine, does not like the  
   \ does-address to marked for relocation  
   [ T e? ec H 0= [IF] ] T here H tcell - reloff [ [THEN] ]  
   2 fillcfa ;                                           ' (dodoes,) plugin-of dodoes,    2 fillcfa ;                                           ' (dodoes,) plugin-of dodoes,
   
 : (dlit,) ( n -- ) compile lit td, ;                    ' (dlit,) plugin-of dlit,  : (dlit,) ( n -- ) compile lit td, ;                    ' (dlit,) plugin-of dlit,
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         IF   nip execute-exec-compile ELSE gexecute  THEN          IF   nip execute-exec-compile ELSE gexecute  THEN
         EXIT          EXIT
   THEN    THEN
   number? dup    (number?) dup
   IF    0> IF swap lit,  THEN  lit, discard    IF    0> IF swap lit,  THEN  lit, discard
   ELSE  2drop restore-input throw Ghost gexecute THEN  ;    ELSE  2drop restore-input throw Ghost gexecute THEN  ;
   
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 Defer instant-interpret-does>-hook  ' noop IS instant-interpret-does>-hook  Defer instant-interpret-does>-hook  ' noop IS instant-interpret-does>-hook
   
 T has? peephole H [IF]  T has? primcentric H [IF]
 : does-resolved ( ghost -- )  : does-resolved ( ghost -- )
     compile does-exec g>xt T a, H ;      compile does-exec g>xt T a, H ;
 [ELSE]  [ELSE]
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 >TARGET  >TARGET
 Cond: DOES>  Cond: DOES>
         T here H [ T has? peephole H [IF] ] 5 [ [ELSE] ] 4 [ [THEN] ] T cells          T here H [ T has? primcentric H [IF] ] 5 [ [ELSE] ] 4 [ [THEN] ] T cells
         H + alit, compile (does>2) compile ;s          H + alit, compile !does compile ;s
         doeshandler, resolve-does>-part          doeshandler, resolve-does>-part
         ;Cond          ;Cond
   
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     T 1 cells H dup ;      T 1 cells H dup ;
 >CROSS  >CROSS
   
   \ ABI-CODE support
   Builder (ABI-CODE)
   Build: ;Build
   by: :doabicode noop ;DO
   
   BUILDER (;abi-code)
   Build: ;Build
   by: :do;abicode noop ;DO
   
 \ Input-Methods                                            01py  \ Input-Methods                                            01py
   
 Builder input-method  Builder input-method
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 Build: ( m v size -- m v' )  over T , H + ;Build  Build: ( m v size -- m v' )  over T , H + ;Build
 DO:  abort" Not in cross mode" ;DO  DO:  abort" Not in cross mode" ;DO
   
   \ Mini-OOF
   
   \ Builder method
   \ Build: ( m v -- m' v )  over T , swap cell+ swap H ;Build
   \ DO:  abort" Not in cross mode" ;DO
   
   \ Builder var
   \ Build: ( m v size -- m v+size )  over T , H + ;Build
   \ DO: ( o -- addr ) T @ H + ;DO
   
   \ Builder end-class
   \ Build: ( addr m v -- )
   \   T here >r , dup , 2 cells H ?DO T ['] noop , 1 cells H +LOOP
   \   T cell+ dup cell+ r> rot @ 2 cells /string move H ;Build
   \ by: Variable
   
   \ : defines ( xt class -- )  T ' >body @ + ! H ;
   
 \ Peephole optimization                                 05sep01jaw  \ Peephole optimization                                 05sep01jaw
   
 \ this section defines different compilation  \ this section defines different compilation
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 \ optimizer for cross  \ optimizer for cross
   
   
 T has? peephole H [IF]  T has? primcentric H [IF]
   
 \ .( loading peephole optimization) cr  \ .( loading peephole optimization) cr
   
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 : (callcm) T here 0 a, 0 a, H ;                 ' (callcm) plugin-of colonmark,  : (callcm) T here 0 a, 0 a, H ;                 ' (callcm) plugin-of colonmark,
 : (call-res) >tempdp resolved gexecute tempdp> drop ;  : (call-res) >tempdp resolved gexecute tempdp> drop ;
                                                 ' (call-res) plugin-of colon-resolve                                                  ' (call-res) plugin-of colon-resolve
   T has? ec H [IF]
   : (pprim) T @ H >signed dup 0< IF  $4000 -  ELSE
       cr ." wrong usage of (prim) "
       dup gdiscover IF  .ghost  ELSE  .  THEN  cr -1 throw  THEN
       T a, H ;                                    ' (pprim) plugin-of prim,
   [ELSE]
 : (pprim) dup 0< IF  $4000 -  ELSE  : (pprim) dup 0< IF  $4000 -  ELSE
     cr ." wrong usage of (prim) "      cr ." wrong usage of (prim) "
     dup gdiscover IF  .ghost  ELSE  .  THEN  cr -1 throw  THEN      dup gdiscover IF  .ghost  ELSE  .  THEN  cr -1 throw  THEN
     T a, H ;                                    ' (pprim) plugin-of prim,      T a, H ;                                    ' (pprim) plugin-of prim,
   [THEN]
   
 \ if we want this, we have to spilt aconstant  \ if we want this, we have to spilt aconstant
 \ and constant!!  \ and constant!!
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 compile: g>body compile lit-perform T A, H ;compile  compile: g>body compile lit-perform T A, H ;compile
   
 Builder (Field)  Builder (Field)
 compile: g>body T @ H compile lit+ T , H ;compile  compile: g>body T @ H compile lit+ T here H reloff T , H ;compile
   
 Builder interpret/compile:  Builder interpret/compile:
 compile: does-resolved ;compile  compile: does-resolved ;compile
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   1to compile (+loop)  loop]    1to compile (+loop)  loop]
   compile unloop skiploop] ;                    ' (+loop,) plugin-of +loop,    compile unloop skiploop] ;                    ' (+loop,) plugin-of +loop,
   
   : (-loop,) ( target-addr -- )
     1to compile (-loop)  loop]
     compile unloop skiploop] ;                    ' (-loop,) plugin-of -loop,
   
 : (next,)  : (next,)
   compile (next)  loop] compile unloop ;        ' (next,) plugin-of next,    compile (next)  loop] compile unloop ;        ' (next,) plugin-of next,
   
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 Cond: LOOP      1 ncontrols? loop, ;Cond  Cond: LOOP      1 ncontrols? loop, ;Cond
 Cond: +LOOP     1 ncontrols? +loop, ;Cond  Cond: +LOOP     1 ncontrols? +loop, ;Cond
   Cond: -LOOP     1 ncontrols? -loop, ;Cond
 Cond: NEXT      1 ncontrols? next, ;Cond  Cond: NEXT      1 ncontrols? next, ;Cond
   
 \ String words                                         23feb93py  \ String words                                         23feb93py
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 hex  hex
   
 >CROSS  >CROSS
 Create magic  s" Gforth3x" here over allot swap move  Create magic  s" Gforth4x" here over allot swap move
   
 bigendian 1+ \ strangely, in magic big=0, little=1  bigendian 1+ \ strangely, in magic big=0, little=1
 tcell 1 = 0 and or  tcell 1 = 0 and or

Generate output suitable for use with a patch program
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Removed from v.1.160  
changed lines
  Added in v.1.177
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