projects / simh.git / blame
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|---|---|---|
| 196ba1fc PH |
1 | /* s3_defs.h: IBM System/3 simulator definitions \r |
| 2 | \r | |
| 3 | Copyright (c) 2001-2005, Charles E. Owen\r | |
| 4 | \r | |
| 5 | Permission is hereby granted, free of charge, to any person obtaining a\r | |
| 6 | copy of this software and associated documentation files (the "Software"),\r | |
| 7 | to deal in the Software without restriction, including without limitation\r | |
| 8 | the rights to use, copy, modify, merge, publish, distribute, sublicense,\r | |
| 9 | and/or sell copies of the Software, and to permit persons to whom the\r | |
| 10 | Software is furnished to do so, subject to the following conditions:\r | |
| 11 | \r | |
| 12 | The above copyright notice and this permission notice shall be included in\r | |
| 13 | all copies or substantial portions of the Software.\r | |
| 14 | \r | |
| 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\r | |
| 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\r | |
| 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL\r | |
| 18 | ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER\r | |
| 19 | IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN\r | |
| 20 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.\r | |
| 21 | \r | |
| 22 | Except as contained in this notice, the name of Charles E. Owen shall not be\r | |
| 23 | used in advertising or otherwise to promote the sale, use or other dealings\r | |
| 24 | in this Software without prior written authorization from Charles E. Owen.\r | |
| 25 | */\r | |
| 26 | \r | |
| 27 | #include "sim_defs.h" /* simulator defns */\r | |
| 28 | \r | |
| 29 | /* Simulator stop codes */\r | |
| 30 | \r | |
| 31 | #define STOP_RSRV 1 /* must be 1 */\r | |
| 32 | #define STOP_HALT 2 /* HALT */\r | |
| 33 | #define STOP_IBKPT 3 /* breakpoint */\r | |
| 34 | #define STOP_INVOP 4 /* program check - invalid op */\r | |
| 35 | #define STOP_INVQ 5 /* Prog check - invalid Q */\r | |
| 36 | #define STOP_INVADDR 6 /* Prog check - invalid addr */\r | |
| 37 | #define STOP_INVDEV 7 /* Prog check - invalid dev cmd */\r | |
| 38 | #define STOP_NOCD 8 /* ATTN card reader */\r | |
| 39 | #define RESET_INTERRUPT 77 /* special return from SIO */\r | |
| 40 | \r | |
| 41 | /* Memory */\r | |
| 42 | \r | |
| 43 | #define MAXMEMSIZE 65536 /* max memory size */\r | |
| 44 | #define AMASK (MAXMEMSIZE - 1) /* logical addr mask */\r | |
| 45 | #define PAMASK (MAXMEMSIZE - 1) /* physical addr mask */\r | |
| 46 | #define MEMSIZE (cpu_unit.capac) /* actual memory size */\r | |
| 47 | \r | |
| 48 | #define MAX_DECIMAL_DIGITS 31 /* max size of a decimal number */\r | |
| 49 | #define CDR_WIDTH 80 /* Max card size */\r | |
| 50 | #define CDP_WIDTH 80 /* Punch width */\r | |
| 51 | #define LPT_WIDTH 132\r | |
| 52 | #define CCT_LNT 132\r | |
| 53 | \r | |
| 54 | #define DSK_SECTSIZE 256 /* Sector length */\r | |
| 55 | #define DSK_CYLSIZE 256*48 /* Cylinder length */\r | |
| 56 | \r | |
| 57 | /* I/O structure\r | |
| 58 | \r | |
| 59 | The I/O structure is tied together by dev_table, indexed by\r | |
| 60 | the device number. Each entry in dev_table consists of\r | |
| 61 | \r | |
| 62 | level Interrupt level for device (0-7)\r | |
| 63 | priority Priority for device (1-8)\r | |
| 64 | routine IOT action routine\r | |
| 65 | */\r | |
| 66 | \r | |
| 67 | struct ndev {\r | |
| 68 | int32 level; /* interrupt level */\r | |
| 69 | int32 pri; /* Device priority */\r | |
| 70 | int32 (*routine)(); /* dispatch routine */\r | |
| 71 | };\r | |
| 72 | \r | |
| 73 | /* Structure to define operation codes */\r | |
| 74 | \r | |
| 75 | struct opdef {\r | |
| 76 | char op[6]; /* Mnemonic for op */\r | |
| 77 | int32 opmask; /* Bits set on in opcode */\r | |
| 78 | int32 q; /* Qbyte */\r | |
| 79 | int32 form; /* Forms are:\r | |
| 80 | 0 - 1-byte hex operand\r | |
| 81 | 1 - 1-byte register addr, A-Addr\r | |
| 82 | 2 - A-addr,B-addr,Qbyte\r | |
| 83 | 3 - A-addr,Qbyte\r | |
| 84 | 4 - da,m,n\r | |
| 85 | 5 - da,m,n,cc\r | |
| 86 | 6 - da,m,n,A-addr\r | |
| 87 | 7 - 1-address implict Q\r | |
| 88 | 8 - 2-address implict Q */\r | |
| 89 | int32 group; /* Group Code:\r | |
| 90 | 0 - Command Format (0xFx)\r | |
| 91 | 1 - 1-address A (0x<C,D,E>x) \r | |
| 92 | 2 - 2-address (0x<0,1,2,4,5,6,8,9,A>x)\r | |
| 93 | 3 - 1-address B (0x<3,7,B>x) */\r | |
| 94 | };\r |