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Annotation of gforth/code.fs, revision 1.17

1.1       anton       1: \ ASSEMBLER, CODE etc.
                      2: 
1.17    ! anton       3: \ Copyright (C) 1995,1996,1997,1999,2003,2007 Free Software Foundation, Inc.
1.2       anton       4: 
                      5: \ This file is part of Gforth.
                      6: 
                      7: \ Gforth is free software; you can redistribute it and/or
                      8: \ modify it under the terms of the GNU General Public License
1.16      anton       9: \ as published by the Free Software Foundation, either version 3
1.2       anton      10: \ of the License, or (at your option) any later version.
                     11: 
                     12: \ This program is distributed in the hope that it will be useful,
                     13: \ but WITHOUT ANY WARRANTY; without even the implied warranty of
                     14: \ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     15: \ GNU General Public License for more details.
                     16: 
                     17: \ You should have received a copy of the GNU General Public License
1.16      anton      18: \ along with this program. If not, see http://www.gnu.org/licenses/.
1.2       anton      19: 
1.1       anton      20: \ does not include the actual assembler (which is machine-dependent),
                     21: \ only words like CODE that are implementation-dependent, but can be
                     22: \ defined for all machines.
                     23: 
                     24: vocabulary assembler ( -- ) \ tools-ext
                     25: 
1.9       crook      26: : init-asm ( -- ) \ gforth
1.1       anton      27:     also assembler ;
                     28: 
1.7       anton      29: : code ( "name" -- colon-sys ) \ tools-ext
1.1       anton      30:     \ start a native code definition
1.6       anton      31:     header
1.12      anton      32:     here >body cfa,
1.6       anton      33:     defstart init-asm ;
1.1       anton      34: 
                     35: : (;code) ( -- ) \ gforth
                     36:     \ execution semantics of @code{;code}
1.15      anton      37:     r> latestxt code-address! ;
1.1       anton      38: 
1.6       anton      39: :noname ( -- colon-sys )
1.15      anton      40:     align here latestxt code-address!
1.6       anton      41:     defstart init-asm ;
1.4       pazsan     42: :noname ( colon-sys1 -- colon-sys2 )   \ tools-ext     semicolon-code
1.1       anton      43:     ( create the [;code] part of a low level defining word )
1.13      anton      44:     ;-hook postpone (;code) basic-block-end finish-code ?struc postpone [
1.3       anton      45:     defstart init-asm ;
1.7       anton      46: interpret/compile: ;code ( compilation. colon-sys1 -- colon-sys2 )     \ tools-ext     semicolon-code
1.1       anton      47: 
                     48: : end-code ( colon-sys -- )    \ gforth        end_code
                     49:     ( end a code definition )
1.15      anton      50:     latestxt here over - flush-icache
1.1       anton      51:     previous ?struc reveal ;
1.9       crook      52: