1 /* @(#) pf_io.c 96/12/23 1.12 */
2 /***************************************************************
3 ** I/O subsystem for PForth based on 'C'
6 ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom
8 ** Permission to use, copy, modify, and/or distribute this
9 ** software for any purpose with or without fee is hereby granted.
11 ** THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
12 ** WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
13 ** WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
14 ** THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR
15 ** CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
16 ** FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
17 ** CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 ** OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
20 ****************************************************************
21 ** 941004 PLB Extracted IO calls from pforth_main.c
22 ***************************************************************/
27 /***************************************************************
28 ** Initialize I/O system.
32 /* System dependant terminal initialization. */
40 /***************************************************************
41 ** Send single character to output stream.
47 Result = sdTerminalOut(c);
48 if( Result < 0 ) EXIT(1);
54 gCurrentTask->td_OUT = 0;
59 gCurrentTask->td_OUT++;
64 /***************************************************************
65 ** Send an entire string..
67 void ioType( const char *s, cell_t n )
77 /***************************************************************
78 ** Return single character from input device, always keyboard.
89 /**************************************************************
90 ** Receive line from keyboard.
91 ** Return number of characters enterred.
94 #define BACKSPACE (0x08)
96 cell_t ioAccept( char *buffer, cell_t maxChars )
102 DBUGX(("ioAccept(0x%x, 0x%x)\n", buffer, len ));
108 while(len < maxChars)
121 if( len > 0 ) /* Don't go beyond beginning of line. */
132 sdTerminalEcho( (char) c );
142 sdTerminalEcho( SPACE );
144 /* NUL terminate line to simplify printing when debugging. */
145 if( len < maxChars ) p[len] = '\0';
150 #define UNIMPLEMENTED(name) { MSG(name); MSG("is unimplemented!\n"); }
153 /***********************************************************************************/
154 /*********** File I/O **************************************************************/
155 /***********************************************************************************/
158 /* Provide stubs for standard file I/O */
160 FileStream *PF_STDIN;
161 FileStream *PF_STDOUT;
163 cell_t sdInputChar( FileStream *stream )
165 UNIMPLEMENTED("sdInputChar");
170 FileStream *sdOpenFile( const char *FileName, const char *Mode )
172 UNIMPLEMENTED("sdOpenFile");
177 cell_t sdFlushFile( FileStream * Stream )
182 cell_t sdReadFile( void *ptr, cell_t Size, int32_t nItems, FileStream * Stream )
184 UNIMPLEMENTED("sdReadFile");
191 cell_t sdWriteFile( void *ptr, cell_t Size, int32_t nItems, FileStream * Stream )
193 UNIMPLEMENTED("sdWriteFile");
200 cell_t sdSeekFile( FileStream * Stream, file_offset_t Position, int32_t Mode )
202 UNIMPLEMENTED("sdSeekFile");
208 file_offset_t sdTellFile( FileStream * Stream )
210 UNIMPLEMENTED("sdTellFile");
214 cell_t sdCloseFile( FileStream * Stream )
216 UNIMPLEMENTED("sdCloseFile");
221 cell_t sdDeleteFile( const char *FileName )
223 UNIMPLEMENTED("sdDeleteFile");
228 cell_t sdRenameFile( const char *OldName, const char *NewName )
230 UNIMPLEMENTED("sdRenameFile");
236 ThrowCode sdResizeFile( FileStream * File, uint64_t NewSize )
238 UNIMPLEMENTED("sdResizeFile");
240 return THROW_RESIZE_FILE;