Commit | Line | Data |
---|---|---|
8e9db35f PB |
1 | /* @(#) pf_io.c 96/12/23 1.12 */ |
2 | /*************************************************************** | |
3 | ** I/O subsystem for PForth based on 'C' | |
4 | ** | |
5 | ** Author: Phil Burk | |
6 | ** Copyright 1994 3DO, Phil Burk, Larry Polansky, David Rosenboom | |
7 | ** | |
1f99f95d S |
8 | ** Permission to use, copy, modify, and/or distribute this |
9 | ** software for any purpose with or without fee is hereby granted. | |
10 | ** | |
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. | |
8e9db35f PB |
19 | ** |
20 | **************************************************************** | |
21 | ** 941004 PLB Extracted IO calls from pforth_main.c | |
22 | ***************************************************************/ | |
23 | ||
24 | #include "pf_all.h" | |
25 | ||
26 | ||
27 | /*************************************************************** | |
28 | ** Initialize I/O system. | |
29 | */ | |
30 | void ioInit( void ) | |
31 | { | |
32 | /* System dependant terminal initialization. */ | |
33 | sdTerminalInit(); | |
34 | } | |
35 | void ioTerm( void ) | |
36 | { | |
37 | sdTerminalTerm(); | |
38 | } | |
39 | ||
40 | /*************************************************************** | |
41 | ** Send single character to output stream. | |
42 | */ | |
43 | void ioEmit( char c ) | |
44 | { | |
45 | cell_t Result; | |
46 | ||
47 | Result = sdTerminalOut(c); | |
48 | if( Result < 0 ) EXIT(1); | |
49 | ||
50 | if( gCurrentTask ) | |
51 | { | |
52 | if(c == '\n') | |
53 | { | |
54 | gCurrentTask->td_OUT = 0; | |
55 | sdTerminalFlush(); | |
56 | } | |
57 | else | |
58 | { | |
59 | gCurrentTask->td_OUT++; | |
60 | } | |
61 | } | |
62 | } | |
63 | ||
64 | /*************************************************************** | |
65 | ** Send an entire string.. | |
66 | */ | |
67 | void ioType( const char *s, cell_t n ) | |
68 | { | |
69 | cell_t i; | |
70 | ||
71 | for( i=0; i<n; i++) | |
72 | { | |
73 | ioEmit ( *s++ ); | |
74 | } | |
75 | } | |
76 | ||
77 | /*************************************************************** | |
78 | ** Return single character from input device, always keyboard. | |
79 | */ | |
80 | cell_t ioKey( void ) | |
81 | { | |
82 | cell_t c; | |
83 | sdEnableInput(); | |
84 | c = sdTerminalIn(); | |
85 | sdDisableInput(); | |
86 | return c; | |
87 | } | |
88 | ||
89 | /************************************************************** | |
90 | ** Receive line from keyboard. | |
91 | ** Return number of characters enterred. | |
92 | */ | |
93 | #define SPACE (0x20) | |
94 | #define BACKSPACE (0x08) | |
95 | #define DELETE (0x7F) | |
96 | cell_t ioAccept( char *buffer, cell_t maxChars ) | |
97 | { | |
98 | int c; | |
99 | int len; | |
100 | char *p; | |
101 | ||
102 | DBUGX(("ioAccept(0x%x, 0x%x)\n", buffer, len )); | |
103 | ||
104 | sdEnableInput(); | |
105 | ||
106 | p = buffer; | |
107 | len = 0; | |
108 | while(len < maxChars) | |
109 | { | |
110 | c = sdTerminalIn(); | |
111 | switch(c) | |
112 | { | |
113 | case '\r': | |
114 | case '\n': | |
115 | DBUGX(("EOL\n")); | |
116 | goto gotline; | |
117 | break; | |
118 | ||
119 | case BACKSPACE: | |
120 | case DELETE: | |
121 | if( len > 0 ) /* Don't go beyond beginning of line. */ | |
122 | { | |
123 | EMIT(BACKSPACE); | |
124 | EMIT(' '); | |
125 | EMIT(BACKSPACE); | |
126 | p--; | |
127 | len--; | |
128 | } | |
129 | break; | |
130 | ||
131 | default: | |
132 | sdTerminalEcho( (char) c ); | |
133 | *p++ = (char) c; | |
134 | len++; | |
135 | break; | |
136 | } | |
137 | ||
138 | } | |
139 | ||
140 | gotline: | |
141 | sdDisableInput(); | |
142 | sdTerminalEcho( SPACE ); | |
143 | ||
144 | /* NUL terminate line to simplify printing when debugging. */ | |
145 | if( len < maxChars ) p[len] = '\0'; | |
146 | ||
147 | return len; | |
148 | } | |
149 | ||
150 | #define UNIMPLEMENTED(name) { MSG(name); MSG("is unimplemented!\n"); } | |
151 | ||
152 | ||
153 | /***********************************************************************************/ | |
154 | /*********** File I/O **************************************************************/ | |
155 | /***********************************************************************************/ | |
156 | #ifdef PF_NO_FILEIO | |
157 | ||
158 | /* Provide stubs for standard file I/O */ | |
159 | ||
160 | FileStream *PF_STDIN; | |
161 | FileStream *PF_STDOUT; | |
162 | ||
163 | cell_t sdInputChar( FileStream *stream ) | |
164 | { | |
165 | UNIMPLEMENTED("sdInputChar"); | |
166 | TOUCH(stream); | |
167 | return -1; | |
168 | } | |
169 | ||
170 | FileStream *sdOpenFile( const char *FileName, const char *Mode ) | |
171 | { | |
172 | UNIMPLEMENTED("sdOpenFile"); | |
173 | TOUCH(FileName); | |
174 | TOUCH(Mode); | |
175 | return NULL; | |
176 | } | |
177 | cell_t sdFlushFile( FileStream * Stream ) | |
178 | { | |
179 | TOUCH(Stream); | |
180 | return 0; | |
181 | } | |
182 | cell_t sdReadFile( void *ptr, cell_t Size, int32_t nItems, FileStream * Stream ) | |
183 | { | |
184 | UNIMPLEMENTED("sdReadFile"); | |
185 | TOUCH(ptr); | |
186 | TOUCH(Size); | |
187 | TOUCH(nItems); | |
188 | TOUCH(Stream); | |
189 | return 0; | |
190 | } | |
191 | cell_t sdWriteFile( void *ptr, cell_t Size, int32_t nItems, FileStream * Stream ) | |
192 | { | |
193 | UNIMPLEMENTED("sdWriteFile"); | |
194 | TOUCH(ptr); | |
195 | TOUCH(Size); | |
196 | TOUCH(nItems); | |
197 | TOUCH(Stream); | |
198 | return 0; | |
199 | } | |
ccd2b2a1 | 200 | cell_t sdSeekFile( FileStream * Stream, file_offset_t Position, int32_t Mode ) |
8e9db35f PB |
201 | { |
202 | UNIMPLEMENTED("sdSeekFile"); | |
203 | TOUCH(Stream); | |
204 | TOUCH(Position); | |
205 | TOUCH(Mode); | |
206 | return 0; | |
207 | } | |
e0489cd1 | 208 | file_offset_t sdTellFile( FileStream * Stream ) |
8e9db35f PB |
209 | { |
210 | UNIMPLEMENTED("sdTellFile"); | |
211 | TOUCH(Stream); | |
212 | return 0; | |
213 | } | |
214 | cell_t sdCloseFile( FileStream * Stream ) | |
215 | { | |
216 | UNIMPLEMENTED("sdCloseFile"); | |
217 | TOUCH(Stream); | |
218 | return 0; | |
219 | } | |
220 | ||
e0701bfb | 221 | cell_t sdDeleteFile( const char *FileName ) |
8e9db35f PB |
222 | { |
223 | UNIMPLEMENTED("sdDeleteFile"); | |
224 | TOUCH(FileName); | |
e0701bfb | 225 | return -1; |
8e9db35f | 226 | } |
6f3de396 | 227 | |
662a735a | 228 | cell_t sdRenameFile( const char *OldName, const char *NewName ) |
6f3de396 HE |
229 | { |
230 | UNIMPLEMENTED("sdRenameFile"); | |
231 | TOUCH(OldName); | |
232 | TOUCH(NewName); | |
233 | return -1; | |
234 | } | |
e0701bfb | 235 | |
0b1e2489 | 236 | ThrowCode sdResizeFile( FileStream * File, uint64_t NewSize ) |
e0701bfb HE |
237 | { |
238 | UNIMPLEMENTED("sdResizeFile"); | |
0b1e2489 | 239 | TOUCH(NewSize); |
e0701bfb HE |
240 | return THROW_RESIZE_FILE; |
241 | } | |
242 | ||
8e9db35f PB |
243 | #endif |
244 |