Annotation of gforth/code.fs, revision 1.20
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
1.20 ! dvdkhlng 30: \G 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:
1.19 dvdkhlng 35: [ifdef] doabicode:
1.20 ! dvdkhlng 36: : abi-code ( "name" -- colon-sys ) \ gforth abi_code
! 37: \G Start a native code definition that is called using the platform's
! 38: \G ABI conventions corresponding to the C-prototype:
! 39: \G @example
! 40: \G struct@{Cell*sp;double*fp;@} function (Cell *sp, double *fp);
! 41: \G @end example
1.18 dvdkhlng 42: header
43: doabicode: cfa,
44: defstart init-asm ;
1.19 dvdkhlng 45: [endif]
1.18 dvdkhlng 46:
1.1 anton 47: : (;code) ( -- ) \ gforth
48: \ execution semantics of @code{;code}
1.15 anton 49: r> latestxt code-address! ;
1.1 anton 50:
1.6 anton 51: :noname ( -- colon-sys )
1.15 anton 52: align here latestxt code-address!
1.6 anton 53: defstart init-asm ;
1.4 pazsan 54: :noname ( colon-sys1 -- colon-sys2 ) \ tools-ext semicolon-code
1.1 anton 55: ( create the [;code] part of a low level defining word )
1.13 anton 56: ;-hook postpone (;code) basic-block-end finish-code ?struc postpone [
1.3 anton 57: defstart init-asm ;
1.7 anton 58: interpret/compile: ;code ( compilation. colon-sys1 -- colon-sys2 ) \ tools-ext semicolon-code
1.1 anton 59:
60: : end-code ( colon-sys -- ) \ gforth end_code
1.20 ! dvdkhlng 61: \G end a code definition
1.15 anton 62: latestxt here over - flush-icache
1.1 anton 63: previous ?struc reveal ;
1.9 crook 64:
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