1: \ ASSEMBLER, CODE etc.
2:
3: \ Copyright (C) 1995,1996,1997,1999,2003,2007 Free Software Foundation, Inc.
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
9: \ as published by the Free Software Foundation, either version 3
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
18: \ along with this program. If not, see http://www.gnu.org/licenses/.
19:
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:
26: : init-asm ( -- ) \ gforth
27: also assembler ;
28:
29: : code ( "name" -- colon-sys ) \ tools-ext
30: \ start a native code definition
31: header
32: here >body cfa,
33: defstart init-asm ;
34:
35: [ifdef] doabicode:
36: : abi-code ( "name" -- colon-sys ) \ gforth
37: \ start a native code definition that is called using the platform's
38: \ ABI conventions corresponding to C-prototype
39: \ struct{Cell*sp;double*fp;} function (Cell *sp, double *fp);
40: header
41: doabicode: cfa,
42: defstart init-asm ;
43: [endif]
44:
45: : (;code) ( -- ) \ gforth
46: \ execution semantics of @code{;code}
47: r> latestxt code-address! ;
48:
49: :noname ( -- colon-sys )
50: align here latestxt code-address!
51: defstart init-asm ;
52: :noname ( colon-sys1 -- colon-sys2 ) \ tools-ext semicolon-code
53: ( create the [;code] part of a low level defining word )
54: ;-hook postpone (;code) basic-block-end finish-code ?struc postpone [
55: defstart init-asm ;
56: interpret/compile: ;code ( compilation. colon-sys1 -- colon-sys2 ) \ tools-ext semicolon-code
57:
58: : end-code ( colon-sys -- ) \ gforth end_code
59: ( end a code definition )
60: latestxt here over - flush-icache
61: previous ?struc reveal ;
62:
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