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1 | /* nova_plt.c: NOVA plotter simulator\r |
2 | \r | |
3 | Copyright (c) 2000-2008, Robert M. Supnik\r | |
4 | Written by Bruce Ray and used with his gracious permission.\r | |
5 | \r | |
6 | Permission is hereby granted, free of charge, to any person obtaining a\r | |
7 | copy of this software and associated documentation files (the "Software"),\r | |
8 | to deal in the Software without restriction, including without limitation\r | |
9 | the rights to use, copy, modify, merge, publish, distribute, sublicense,\r | |
10 | and/or sell copies of the Software, and to permit persons to whom the\r | |
11 | Software is furnished to do so, subject to the following conditions:\r | |
12 | \r | |
13 | The above copyright notice and this permission notice shall be included in\r | |
14 | all copies or substantial portions of the Software.\r | |
15 | \r | |
16 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r | |
17 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r | |
18 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\r | |
19 | ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r | |
20 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r | |
21 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r | |
22 | \r | |
23 | Except as contained in this notice, the name of Robert M Supnik shall not be\r | |
24 | used in advertising or otherwise to promote the sale, use or other dealings\r | |
25 | in this Software without prior written authorization from Robert M Supnik.\r | |
26 | \r | |
27 | plt plotter\r | |
28 | \r | |
29 | 04-Jul-07 BKR added 7B/8B support (default is 8B),\r | |
30 | DEV_SET/CLR macros now used\r | |
31 | 25-Apr-03 RMS Revised for extended file support\r | |
32 | 03-Oct-02 RMS Added DIB\r | |
33 | 30-May-02 RMS Widened POS to 32b\r | |
34 | 06-Jan-02 RMS Revised enable/disable support\r | |
35 | 26-Apr-01 RMS Added device enable/disable support\r | |
36 | \r | |
37 | \r | |
38 | Notes:\r | |
39 | - data masked to 7- or 8- bits, based on 7B or 8B, default is 8-bits\r | |
40 | - if register TIME is non-zero, then delay TIME events if <FF>, <CR> or <LF> seen\r | |
41 | - register POS show the current file position\r | |
42 | - register STOP_IOE determines return value issued if output to unattached PLT is attempted\r | |
43 | */\r | |
44 | \r | |
45 | #include "nova_defs.h"\r | |
46 | \r | |
47 | extern int32 int_req, dev_busy, dev_done, dev_disable;\r | |
48 | \r | |
49 | int32 plt_stopioe = 0; /* stop on error */\r | |
50 | \r | |
51 | DEVICE plt_dev;\r | |
52 | int32 plt (int32 pulse, int32 code, int32 AC);\r | |
53 | t_stat plt_svc (UNIT *uptr);\r | |
54 | t_stat plt_reset (DEVICE *dptr);\r | |
55 | \r | |
56 | \r | |
57 | /* 7 or 8 bit data mask support for either device */\r | |
58 | \r | |
59 | #define UNIT_V_8B (UNIT_V_UF + 0) /* 8b output */\r | |
60 | #define UNIT_8B (1 << UNIT_V_8B)\r | |
61 | \r | |
62 | /* PLT data structures\r | |
63 | \r | |
64 | plt_dev PLT device descriptor\r | |
65 | plt_unit PLT unit descriptor\r | |
66 | plt_reg PLT register list\r | |
67 | */\r | |
68 | \r | |
69 | DIB plt_dib = { DEV_PLT, INT_PLT, PI_PLT, &plt };\r | |
70 | \r | |
71 | UNIT plt_unit = { /* 2007-May-30, bkr */\r | |
72 | UDATA (&plt_svc, UNIT_SEQ+UNIT_ATTABLE+UNIT_8B, 0), SERIAL_OUT_WAIT\r | |
73 | };\r | |
74 | \r | |
75 | REG plt_reg[] = {\r | |
76 | { ORDATA (BUF, plt_unit.buf, 8) },\r | |
77 | { FLDATA (BUSY, dev_busy, INT_V_PLT) },\r | |
78 | { FLDATA (DONE, dev_done, INT_V_PLT) },\r | |
79 | { FLDATA (DISABLE, dev_disable, INT_V_PLT) },\r | |
80 | { FLDATA (INT, int_req, INT_V_PLT) },\r | |
81 | { DRDATA (POS, plt_unit.pos, T_ADDR_W), PV_LEFT },\r | |
82 | { DRDATA (TIME, plt_unit.wait, 24), PV_LEFT },\r | |
83 | { FLDATA (STOP_IOE, plt_stopioe, 0) },\r | |
84 | { NULL }\r | |
85 | };\r | |
86 | \r | |
87 | MTAB plt_mod[] = /* 2007-May-30, bkr */\r | |
88 | {\r | |
89 | { UNIT_8B, 0, "7b", "7B", NULL },\r | |
90 | { UNIT_8B, UNIT_8B, "8b", "8B", NULL },\r | |
91 | { 0, 0, NULL, NULL, NULL }\r | |
92 | } ;\r | |
93 | \r | |
94 | DEVICE plt_dev = {\r | |
95 | "PLT", &plt_unit, plt_reg, plt_mod,\r | |
96 | 1, 10, 31, 1, 8, 8,\r | |
97 | NULL, NULL, &plt_reset,\r | |
98 | NULL, NULL, NULL,\r | |
99 | &plt_dib, DEV_DISABLE\r | |
100 | };\r | |
101 | \r | |
102 | \r | |
103 | /* plotter: IOT routine */\r | |
104 | \r | |
105 | int32 plt (int32 pulse, int32 code, int32 AC)\r | |
106 | {\r | |
107 | if (code == ioDOA)\r | |
108 | plt_unit.buf = AC & ((plt_unit.flags & UNIT_8B)?\r | |
109 | 0377\r | |
110 | : 0177);\r | |
111 | switch (pulse)\r | |
112 | { /* decode IR<8:9> */\r | |
113 | case iopS: /* start */\r | |
114 | DEV_SET_BUSY( INT_PLT ) ;\r | |
115 | DEV_CLR_DONE( INT_PLT ) ;\r | |
116 | DEV_UPDATE_INTR ;\r | |
117 | sim_activate (&plt_unit, plt_unit.wait); /* activate unit */\r | |
118 | break;\r | |
119 | \r | |
120 | case iopC: /* clear */\r | |
121 | DEV_CLR_BUSY( INT_PLT ) ;\r | |
122 | DEV_CLR_DONE( INT_PLT ) ;\r | |
123 | DEV_UPDATE_INTR ;\r | |
124 | sim_cancel (&plt_unit); /* deactivate unit */\r | |
125 | break;\r | |
126 | } /* end switch */\r | |
127 | \r | |
128 | return 0;\r | |
129 | }\r | |
130 | \r | |
131 | \r | |
132 | /* Unit service */\r | |
133 | \r | |
134 | t_stat plt_svc (UNIT *uptr)\r | |
135 | {\r | |
136 | DEV_CLR_BUSY( INT_PLT ) ;\r | |
137 | DEV_SET_DONE( INT_PLT ) ;\r | |
138 | DEV_UPDATE_INTR ;\r | |
139 | if ((plt_unit.flags & UNIT_ATT) == 0) /* attached? */\r | |
140 | return IORETURN (plt_stopioe, SCPE_UNATT);\r | |
141 | if (putc (plt_unit.buf, plt_unit.fileref) == EOF) {\r | |
142 | perror ("PLT I/O error");\r | |
143 | clearerr (plt_unit.fileref);\r | |
144 | return SCPE_IOERR;\r | |
145 | }\r | |
146 | ++(plt_unit.pos);\r | |
147 | return SCPE_OK;\r | |
148 | }\r | |
149 | \r | |
150 | \r | |
151 | /* Reset routine */\r | |
152 | \r | |
153 | t_stat plt_reset (DEVICE *dptr)\r | |
154 | {\r | |
155 | plt_unit.buf = 0; /* <not DG compatible> */\r | |
156 | DEV_CLR_BUSY( INT_PLT ) ;\r | |
157 | DEV_CLR_DONE( INT_PLT ) ;\r | |
158 | DEV_UPDATE_INTR ;\r | |
159 | sim_cancel (&plt_unit); /* deactivate unit */\r | |
160 | return SCPE_OK;\r | |
161 | }\r |