| /************************************************************************* | |
| * * | |
| * $Id: tx0_defs.h 2059 2009-02-23 05:59:14Z hharte $ * | |
| * * | |
| * Copyright (c) 2009 Howard M. Harte. * | |
| * Based on pdp1_defs.h, Copyright (c) 1993-2006, Robert M. Supnik * | |
| * * | |
| * Permission is hereby granted, free of charge, to any person obtaining * | |
| * a copy of this software and associated documentation files (the * | |
| * "Software"), to deal in the Software without restriction, including * | |
| * without limitation the rights to use, copy, modify, merge, publish, * | |
| * distribute, sublicense, and/or sell copies of the Software, and to * | |
| * permit persons to whom the Software is furnished to do so, subject to * | |
| * the following conditions: * | |
| * * | |
| * The above copyright notice and this permission notice shall be * | |
| * included in all copies or substantial portions of the Software. * | |
| * * | |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * | |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * | |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * | |
| * NONINFRINGEMENT. IN NO EVENT SHALL HOWARD M. HARTE BE LIABLE FOR ANY * | |
| * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * | |
| * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * | |
| * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * | |
| * * | |
| * Except as contained in this notice, the name of Howard M. Harte shall * | |
| * not be used in advertising or otherwise to promote the sale, use or * | |
| * other dealings in this Software without prior written authorization * | |
| * of Howard M. Harte. * | |
| * * | |
| * Module Description: * | |
| * cpu TX-0 Central Processor * | |
| * * | |
| * Environment: * | |
| * User mode only * | |
| * * | |
| *************************************************************************/ | |
| #ifndef PDP1_DEFS_H_ | |
| #define PDP1_DEFS_H_ 0 | |
| #include "sim_defs.h" | |
| /* Rename of global PC variable to avoid namespace conflicts on some platforms */ | |
| #define PC PC_Global | |
| /* Simulator stop codes */ | |
| #define STOP_RSRV 1 /* must be 1 */ | |
| #define STOP_HALT 2 /* HALT */ | |
| #define STOP_IBKPT 3 /* breakpoint */ | |
| /* Memory */ | |
| #define ASIZE 16 /* address bits */ | |
| #define MAXMEMSIZE (1u << ASIZE) /* max mem size */ | |
| #define AMASK (MAXMEMSIZE - 1) /* address mask */ | |
| #define MEMSIZE (cpu_unit.capac) /* actual memory size */ | |
| #define MEM_ADDR_OK(x) (((uint32) (x)) < MEMSIZE) | |
| /* Architectural constants */ | |
| #define SIGN 0400000 /* sign */ | |
| #define DMASK 0777777 /* data mask */ | |
| #define YMASK 0017777 /* "Y" Mask for address calculation (13 bits) */ | |
| /* I/O status flags */ | |
| #define IOS_V_LPN 17 /* light pen */ | |
| #define IOS_V_PETR 16 /* paper tape reader */ | |
| #define IOS_V_TTO 15 /* typewriter out */ | |
| #define IOS_V_TTI 14 /* typewriter in */ | |
| #define IOS_V_PTP 13 /* paper tape punch */ | |
| #define IOS_V_DRM 12 /* drum */ | |
| #define IOS_V_SQB 11 /* sequence break */ | |
| #define IOS_V_PNT 3 /* print done */ | |
| #define IOS_V_SPC 2 /* space done */ | |
| #define IOS_V_DCS 1 /* data comm sys */ | |
| #define IOS_V_DRP 0 /* parallel drum busy */ | |
| #define IOS_LPN (1 << IOS_V_LPN) | |
| #define IOS_PETR (1 << IOS_V_PETR) | |
| #define IOS_TTO (1 << IOS_V_TTO) | |
| #define IOS_TTI (1 << IOS_V_TTI) | |
| #define IOS_PTP (1 << IOS_V_PTP) | |
| #define IOS_DRM (1 << IOS_V_DRM) | |
| #define IOS_SQB (1 << IOS_V_SQB) | |
| #define IOS_PNT (1 << IOS_V_PNT) | |
| #define IOS_SPC (1 << IOS_V_SPC) | |
| #define IOS_DCS (1 << IOS_V_DCS) | |
| #define IOS_DRP (1 << IOS_V_DRP) | |
| #define UNIT_V_MODE (UNIT_V_UF + 0) | |
| #define UNIT_MODE (3 << UNIT_V_MODE) | |
| #define UNIT_MODE_READIN (3 << UNIT_V_MODE) | |
| #define UNIT_MODE_TEST (1 << UNIT_V_MODE) | |
| #endif |