| 1 | /* @(#) pfcustom.c 98/01/26 1.3 */\r |
| 2 | \r |
| 3 | #ifndef PF_USER_CUSTOM\r |
| 4 | \r |
| 5 | /***************************************************************\r |
| 6 | ** Call Custom Functions for pForth\r |
| 7 | **\r |
| 8 | ** Create a file similar to this and compile it into pForth\r |
| 9 | ** by setting -DPF_USER_CUSTOM="mycustom.c"\r |
| 10 | **\r |
| 11 | ** Using this, you could, for example, call X11 from Forth.\r |
| 12 | ** See "pf_cglue.c" for more information.\r |
| 13 | **\r |
| 14 | ** Author: Phil Burk\r |
| 15 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom\r |
| 16 | **\r |
| 17 | ** The pForth software code is dedicated to the public domain,\r |
| 18 | ** and any third party may reproduce, distribute and modify\r |
| 19 | ** the pForth software code or any derivative works thereof\r |
| 20 | ** without any compensation or license. The pForth software\r |
| 21 | ** code is provided on an "as is" basis without any warranty\r |
| 22 | ** of any kind, including, without limitation, the implied\r |
| 23 | ** warranties of merchantability and fitness for a particular\r |
| 24 | ** purpose and their equivalents under the laws of any jurisdiction.\r |
| 25 | **\r |
| 26 | ***************************************************************/\r |
| 27 | \r |
| 28 | \r |
| 29 | #include "pf_all.h"\r |
| 30 | \r |
| 31 | static cell_t CTest0( cell_t Val );\r |
| 32 | static void CTest1( cell_t Val1, cell_t Val2 );\r |
| 33 | \r |
| 34 | /****************************************************************\r |
| 35 | ** Step 1: Put your own special glue routines here\r |
| 36 | ** or link them in from another file or library.\r |
| 37 | ****************************************************************/\r |
| 38 | static cell_t CTest0( cell_t Val )\r |
| 39 | {\r |
| 40 | MSG_NUM_D("CTest0: Val = ", Val);\r |
| 41 | return Val+1;\r |
| 42 | }\r |
| 43 | \r |
| 44 | static void CTest1( cell_t Val1, cell_t Val2 )\r |
| 45 | {\r |
| 46 | \r |
| 47 | MSG("CTest1: Val1 = "); ffDot(Val1);\r |
| 48 | MSG_NUM_D(", Val2 = ", Val2);\r |
| 49 | }\r |
| 50 | \r |
| 51 | /****************************************************************\r |
| 52 | ** Step 2: Create CustomFunctionTable.\r |
| 53 | ** Do not change the name of CustomFunctionTable!\r |
| 54 | ** It is used by the pForth kernel.\r |
| 55 | ****************************************************************/\r |
| 56 | \r |
| 57 | #ifdef PF_NO_GLOBAL_INIT\r |
| 58 | /******************\r |
| 59 | ** If your loader does not support global initialization, then you\r |
| 60 | ** must define PF_NO_GLOBAL_INIT and provide a function to fill\r |
| 61 | ** the table. Some embedded system loaders require this!\r |
| 62 | ** Do not change the name of LoadCustomFunctionTable()!\r |
| 63 | ** It is called by the pForth kernel.\r |
| 64 | */\r |
| 65 | #define NUM_CUSTOM_FUNCTIONS (2)\r |
| 66 | CFunc0 CustomFunctionTable[NUM_CUSTOM_FUNCTIONS];\r |
| 67 | \r |
| 68 | Err LoadCustomFunctionTable( void )\r |
| 69 | {\r |
| 70 | CustomFunctionTable[0] = CTest0;\r |
| 71 | CustomFunctionTable[1] = CTest1;\r |
| 72 | return 0;\r |
| 73 | }\r |
| 74 | \r |
| 75 | #else\r |
| 76 | /******************\r |
| 77 | ** If your loader supports global initialization (most do.) then just\r |
| 78 | ** create the table like this.\r |
| 79 | */\r |
| 80 | CFunc0 CustomFunctionTable[] =\r |
| 81 | {\r |
| 82 | (CFunc0) CTest0,\r |
| 83 | (CFunc0) CTest1\r |
| 84 | }; \r |
| 85 | #endif\r |
| 86 | \r |
| 87 | /****************************************************************\r |
| 88 | ** Step 3: Add custom functions to the dictionary.\r |
| 89 | ** Do not change the name of CompileCustomFunctions!\r |
| 90 | ** It is called by the pForth kernel.\r |
| 91 | ****************************************************************/\r |
| 92 | \r |
| 93 | #if (!defined(PF_NO_INIT)) && (!defined(PF_NO_SHELL))\r |
| 94 | Err CompileCustomFunctions( void )\r |
| 95 | {\r |
| 96 | Err err;\r |
| 97 | int i = 0;\r |
| 98 | /* Compile Forth words that call your custom functions.\r |
| 99 | ** Make sure order of functions matches that in LoadCustomFunctionTable().\r |
| 100 | ** Parameters are: Name in UPPER CASE, Function, Index, Mode, NumParams\r |
| 101 | */\r |
| 102 | err = CreateGlueToC( "CTEST0", i++, C_RETURNS_VALUE, 1 );\r |
| 103 | if( err < 0 ) return err;\r |
| 104 | err = CreateGlueToC( "CTEST1", i++, C_RETURNS_VOID, 2 );\r |
| 105 | if( err < 0 ) return err;\r |
| 106 | \r |
| 107 | return 0;\r |
| 108 | }\r |
| 109 | #else\r |
| 110 | Err CompileCustomFunctions( void ) { return 0; }\r |
| 111 | #endif\r |
| 112 | \r |
| 113 | /****************************************************************\r |
| 114 | ** Step 4: Recompile using compiler option PF_USER_CUSTOM\r |
| 115 | ** and link with your code.\r |
| 116 | ** Then rebuild the Forth using "pforth -i system.fth"\r |
| 117 | ** Test: 10 Ctest0 ( should print message then '11' )\r |
| 118 | ****************************************************************/\r |
| 119 | \r |
| 120 | #endif /* PF_USER_CUSTOM */\r |
| 121 | \r |