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