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| 1 : | anton | 1.1 | \ ASSEMBLER, CODE etc. |
| 2 : | |||
| 3 : | anton | 1.2 | \ Copyright (C) 1995 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 2 | ||
| 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, write to the Free Software | ||
| 19 : | \ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 20 : | |||
| 21 : | anton | 1.1 | \ does not include the actual assembler (which is machine-dependent), |
| 22 : | \ only words like CODE that are implementation-dependent, but can be | ||
| 23 : | \ defined for all machines. | ||
| 24 : | |||
| 25 : | vocabulary assembler ( -- ) \ tools-ext | ||
| 26 : | |||
| 27 : | : init-asm ( -- ) | ||
| 28 : | also assembler ; | ||
| 29 : | |||
| 30 : | : code ( -- colon-sys ) \ tools-ext | ||
| 31 : | \ start a native code definition | ||
| 32 : | header here >body cfa, defstart init-asm ; | ||
| 33 : | |||
| 34 : | : (;code) ( -- ) \ gforth | ||
| 35 : | \ execution semantics of @code{;code} | ||
| 36 : | r> lastxt code-address! ; | ||
| 37 : | |||
| 38 : | : ;code ( colon-sys1 -- colon-sys2 ) \ tools-ext semicolon-code | ||
| 39 : | ( create the [;code] part of a low level defining word ) | ||
| 40 : | state @ | ||
| 41 : | IF | ||
| 42 : | ;-hook postpone (;code) ?struc postpone [ | ||
| 43 : | ELSE | ||
| 44 : | align here lastxt code-address! | ||
| 45 : | THEN | ||
| 46 : | defstart init-asm ; immediate | ||
| 47 : | |||
| 48 : | : end-code ( colon-sys -- ) \ gforth end_code | ||
| 49 : | ( end a code definition ) | ||
| 50 : | lastxt here over - flush-icache | ||
| 51 : | previous ?struc reveal ; |
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