\ ASSEMBLER, CODE etc.
\ Copyright (C) 1995,1996,1997,1999,2003,2007 Free Software Foundation, Inc.
\ This file is part of Gforth.
\ Gforth is free software; you can redistribute it and/or
\ modify it under the terms of the GNU General Public License
\ as published by the Free Software Foundation, either version 3
\ of the License, or (at your option) any later version.
\ This program is distributed in the hope that it will be useful,
\ but WITHOUT ANY WARRANTY; without even the implied warranty of
\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
\ GNU General Public License for more details.
\ You should have received a copy of the GNU General Public License
\ along with this program. If not, see http://www.gnu.org/licenses/.
\ does not include the actual assembler (which is machine-dependent),
\ only words like CODE that are implementation-dependent, but can be
\ defined for all machines.
vocabulary assembler ( -- ) \ tools-ext
: init-asm ( -- ) \ gforth
also assembler ;
: code ( "name" -- colon-sys ) \ tools-ext
\G start a native code definition
header
here >body cfa,
defstart init-asm ;
[ifdef] doabicode:
: abi-code ( "name" -- colon-sys ) \ gforth abi_code
\G Start a native code definition that is called using the platform's
\G ABI conventions corresponding to the C-prototype:
\G @example
\G struct@{Cell*sp;double*fp;@} function (Cell *sp, double *fp);
\G @end example
header
doabicode: cfa,
defstart init-asm ;
[endif]
: (;code) ( -- ) \ gforth
\ execution semantics of @code{;code}
r> latestxt code-address! ;
:noname ( -- colon-sys )
align here latestxt code-address!
defstart init-asm ;
:noname ( colon-sys1 -- colon-sys2 ) \ tools-ext semicolon-code
( create the [;code] part of a low level defining word )
;-hook postpone (;code) basic-block-end finish-code ?struc postpone [
defstart init-asm ;
interpret/compile: ;code ( compilation. colon-sys1 -- colon-sys2 ) \ tools-ext semicolon-code
: end-code ( colon-sys -- ) \ gforth end_code
\G end a code definition
latestxt here over - flush-icache
previous ?struc reveal ;
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