| /* nova_defs.h: NOVA/Eclipse simulator definitions | |
| Copyright (c) 1993-2005, 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 | |
| ROBERT M SUPNIK 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 Robert M Supnik shall not be | |
| used in advertising or otherwise to promote the sale, use or other dealings | |
| in this Software without prior written authorization from Robert M Supnik. | |
| 14-Jan-04 BKR Added support for QTY and ALM | |
| 22-Nov-03 CEO Added support for PIT device | |
| 19-Jan-03 RMS Changed CMASK to CDMASK for Apple Dev kit conflict | |
| 03-Oct-02 RMS Added device information structure | |
| 22-Dec-00 RMS Added Bruce Ray's second terminal support | |
| 10-Dec-00 RMS Added Charles Owen's Eclipse support | |
| 08-Dec-00 RMS Added Bruce Ray's plotter support | |
| 15-Oct-00 RMS Added stack, byte, trap instructions | |
| 14-Apr-99 RMS Changed t_addr to unsigned | |
| 16-Mar-95 RMS Added dynamic memory size | |
| 06-Dec-95 RMS Added magnetic tape | |
| The author gratefully acknowledges the help of Tom West, Diana Englebart, | |
| Carl Friend, Bruce Ray, and Charles Owen in resolving questions about | |
| the NOVA. | |
| */ | |
| #ifndef _NOVA_DEFS_H_ | |
| #define _NOVA_DEFS_H_ 0 | |
| #include "sim_defs.h" /* simulator defns */ | |
| /* Simulator stop codes */ | |
| #define STOP_RSRV 1 /* must be 1 */ | |
| #define STOP_HALT 2 /* HALT */ | |
| #define STOP_IBKPT 3 /* breakpoint */ | |
| #define STOP_IND 4 /* indirect loop */ | |
| #define STOP_IND_INT 5 /* ind loop, intr */ | |
| #define STOP_IND_TRP 6 /* ind loop, trap */ | |
| /* Memory */ | |
| #if defined (ECLIPSE) | |
| #define MAXMEMSIZE 1048576 /* max memory size */ | |
| #else | |
| #define MAXMEMSIZE 32768 /* max memory size */ | |
| #endif | |
| #define AMASK 077777 /* logical addr mask */ | |
| #define PAMASK (MAXMEMSIZE - 1) /* physical addr mask */ | |
| #define MEMSIZE (cpu_unit.capac) /* actual memory size */ | |
| #define A_V_IND 15 /* ind: indirect */ | |
| #define A_IND (1 << A_V_IND) | |
| #define MEM_ADDR_OK(x) (((uint32) (x)) < MEMSIZE) | |
| /* Architectural constants */ | |
| #define SIGN 0100000 /* sign */ | |
| #define DMASK 0177777 /* data mask */ | |
| #define CBIT (DMASK + 1) /* carry bit */ | |
| #define CDMASK (CBIT | DMASK) /* carry + data */ | |
| /* Reserved memory locations */ | |
| #define INT_SAV 0 /* intr saved PC */ | |
| #define INT_JMP 1 /* intr jmp @ */ | |
| #define STK_JMP 3 /* stack jmp @ */ | |
| #define TRP_SAV 046 /* trap saved PC */ | |
| #define TRP_JMP 047 /* trap jmp @ */ | |
| #define AUTO_INC 020 /* start autoinc */ | |
| #define AUTO_DEC 030 /* start autodec */ | |
| /* Instruction format */ | |
| #define I_OPR 0100000 /* operate */ | |
| #define I_M_SRC 03 /* OPR: src AC */ | |
| #define I_V_SRC 13 | |
| #define I_GETSRC(x) (((x) >> I_V_SRC) & I_M_SRC) | |
| #define I_M_DST 03 /* dst AC */ | |
| #define I_V_DST 11 | |
| #define I_GETDST(x) (((x) >> I_V_DST) & I_M_DST) | |
| #define I_M_ALU 07 /* OPR: ALU op */ | |
| #define I_V_ALU 8 | |
| #define I_GETALU(x) (((x) >> I_V_ALU) & I_M_ALU) | |
| #define I_M_SHF 03 /* OPR: shift */ | |
| #define I_V_SHF 6 | |
| #define I_GETSHF(x) (((x) >> I_V_SHF) & I_M_SHF) | |
| #define I_M_CRY 03 /* OPR: carry */ | |
| #define I_V_CRY 4 | |
| #define I_GETCRY(x) (((x) >> I_V_CRY) & I_M_CRY) | |
| #define I_V_NLD 3 /* OPR: no load */ | |
| #define I_NLD (1 << I_V_NLD) | |
| #define I_M_SKP 07 /* OPR: skip */ | |
| #define I_V_SKP 0 | |
| #define I_GETSKP(x) (((x) >> I_V_SKP) & I_M_SKP) | |
| #define I_M_OPAC 017 /* MRF: opcode + AC */ | |
| #define I_V_OPAC 11 | |
| #define I_GETOPAC(x) (((x) >> I_V_OPAC) & I_M_OPAC) | |
| #define I_V_IND 10 /* MRF: indirect */ | |
| #define I_IND (1 << I_V_IND) | |
| #define I_M_MODE 03 /* MRF: mode */ | |
| #define I_V_MODE 8 | |
| #define I_GETMODE(x) (((x) >> I_V_MODE) & I_M_MODE) | |
| #define I_M_DISP 0377 /* MRF: disp */ | |
| #define I_V_DISP 0 | |
| #define I_GETDISP(x) (((x) >> I_V_DISP) & I_M_DISP) | |
| #define DISPSIZE (I_M_DISP + 1) /* page size */ | |
| #define DISPSIGN (DISPSIZE >> 1) /* page sign */ | |
| #define I_M_IOT 07 /* IOT: code */ | |
| #define I_V_IOT 8 | |
| #define I_GETIOT(x) (((x) >> I_V_IOT) & I_M_IOT) | |
| #define I_M_PULSE 03 /* IOT pulse */ | |
| #define I_V_PULSE 6 | |
| #define I_GETPULSE(x) (((x) >> I_V_PULSE) & I_M_PULSE) | |
| #define I_M_DEV 077 /* IOT: device */ | |
| #define I_V_DEV 0 | |
| #define I_GETDEV(x) (((x) >> I_V_DEV) & I_M_DEV) | |
| #define I_M_XOP 037 /* XOP: code */ | |
| #define I_V_XOP 6 | |
| #define I_GETXOP(x) (((x) >> I_V_XOP) & I_M_XOP) | |
| /* IOT return codes */ | |
| #define IOT_V_REASON 16 /* set reason */ | |
| #define IORETURN(f,v) ((f)? (v): SCPE_OK) /* stop on error */ | |
| /* IOT fields */ | |
| #define ioNIO 0 /* opcode field */ | |
| #define ioDIA 1 | |
| #define ioDOA 2 | |
| #define ioDIB 3 | |
| #define ioDOB 4 | |
| #define ioDIC 5 | |
| #define ioDOC 6 | |
| #define ioSKP 7 | |
| #define iopN 0 /* pulse field */ | |
| #define iopS 1 | |
| #define iopC 2 | |
| #define iopP 3 | |
| /* Device numbers */ | |
| #define DEV_LOW 010 /* lowest intr dev */ | |
| #define DEV_HIGH 051 /* highest intr dev */ | |
| #define DEV_MDV 001 /* multiply/divide */ | |
| #define DEV_ECC 002 /* ECC memory control */ | |
| #define DEV_MAP 003 /* MMPU control */ | |
| #define DEV_TTI 010 /* console input */ | |
| #define DEV_TTO 011 /* console output */ | |
| #define DEV_PTR 012 /* paper tape reader */ | |
| #define DEV_PTP 013 /* paper tape punch */ | |
| #define DEV_CLK 014 /* clock */ | |
| #define DEV_PLT 015 /* plotter */ | |
| #define DEV_CDR 016 /* card reader */ | |
| #define DEV_LPT 017 /* line printer */ | |
| #define DEV_DSK 020 /* fixed head disk */ | |
| #define DEV_MTA 022 /* magtape */ | |
| #define DEV_DCM 024 /* data comm mux */ | |
| #define DEV_ADCV 030 /* A/D converter */ | |
| #define DEV_QTY 030 /* 4060 multiplexor */ | |
| #define DEV_DKP 033 /* disk pack */ | |
| #define DEV_CAS 034 /* cassette */ | |
| #define DEV_ALM 034 /* ALM/ULM multiplexor */ | |
| #define DEV_PIT 043 /* programmable interval timer */ | |
| #define DEV_TTI1 050 /* second console input */ | |
| #define DEV_TTO1 051 /* second console output */ | |
| #define DEV_CPU 077 /* CPU control */ | |
| /* I/O structure | |
| The NOVA I/O structure is tied together by dev_table, indexed by | |
| the device number. Each entry in dev_table consists of | |
| mask device mask for busy, done (simulator representation) | |
| pi pi disable bit (hardware representation) | |
| routine IOT action routine | |
| dev_table is populated at run time from the device information | |
| blocks in each device. | |
| */ | |
| struct ndev { | |
| int32 mask; /* done/busy mask */ | |
| int32 pi; /* assigned pi bit */ | |
| int32 (*routine)(); /* dispatch routine */ | |
| }; | |
| typedef struct { | |
| int32 dnum; /* device number */ | |
| int32 mask; /* done/busy mask */ | |
| int32 pi; /* assigned pi bit */ | |
| int32 (*routine)(); /* dispatch routine */ | |
| } DIB; | |
| /* Device flags (simulator representation) | |
| Priority (for INTA) runs from low numbers to high | |
| */ | |
| #define INT_V_PIT 2 /* PIT */ | |
| #define INT_V_DKP 3 /* moving head disk */ | |
| #define INT_V_DSK 4 /* fixed head disk */ | |
| #define INT_V_MTA 5 /* magnetic tape */ | |
| #define INT_V_LPT 6 /* line printer */ | |
| #define INT_V_CLK 7 /* clock */ | |
| #define INT_V_PTR 8 /* paper tape reader */ | |
| #define INT_V_PTP 9 /* paper tape punch */ | |
| #define INT_V_PLT 10 /* plotter */ | |
| #define INT_V_TTI 11 /* keyboard */ | |
| #define INT_V_TTO 12 /* terminal */ | |
| #define INT_V_TTI1 13 /* second keyboard */ | |
| #define INT_V_TTO1 14 /* second terminal */ | |
| #define INT_V_QTY 15 /* QTY multiplexor */ | |
| #define INT_V_ALM 16 /* ALM multiplexor */ | |
| #define INT_V_STK 17 /* stack overflow */ | |
| #define INT_V_NO_ION_PENDING 18 /* ion delay */ | |
| #define INT_V_ION 19 /* interrupts on */ | |
| #define INT_PIT (1 << INT_V_PIT) | |
| #define INT_DKP (1 << INT_V_DKP) | |
| #define INT_DSK (1 << INT_V_DSK) | |
| #define INT_MTA (1 << INT_V_MTA) | |
| #define INT_LPT (1 << INT_V_LPT) | |
| #define INT_CLK (1 << INT_V_CLK) | |
| #define INT_PTR (1 << INT_V_PTR) | |
| #define INT_PTP (1 << INT_V_PTP) | |
| #define INT_PLT (1 << INT_V_PLT) | |
| #define INT_TTI (1 << INT_V_TTI) | |
| #define INT_TTO (1 << INT_V_TTO) | |
| #define INT_TTI1 (1 << INT_V_TTI1) | |
| #define INT_TTO1 (1 << INT_V_TTO1) | |
| #define INT_QTY (1 << INT_V_QTY) | |
| #define INT_ALM (1 << INT_V_ALM) | |
| #define INT_STK (1 << INT_V_STK) | |
| #define INT_NO_ION_PENDING (1 << INT_V_NO_ION_PENDING) | |
| #define INT_ION (1 << INT_V_ION) | |
| #define INT_DEV ((1 << INT_V_STK) - 1) /* device ints */ | |
| #define INT_PENDING INT_ION+INT_NO_ION_PENDING | |
| /* PI disable bits */ | |
| #define PI_PIT 0001000 | |
| #define PI_DKP 0000400 | |
| #define PI_DSK 0000100 | |
| #define PI_MTA 0000040 | |
| #define PI_LPT 0000010 | |
| #define PI_CLK 0000004 | |
| #define PI_PTR 0000020 | |
| #define PI_PTP 0000004 | |
| #define PI_PLT 0000010 | |
| #define PI_QTY 0000002 | |
| #define PI_ALM 0000002 | |
| #define PI_TTI 0000002 | |
| #define PI_TTO 0000001 | |
| #define PI_TTI1 PI_TTI | |
| #define PI_TTO1 PI_TTO | |
| /* #define PI_CDR 0000040 */ | |
| /* #define PI_DCM 0100000 */ | |
| /* #define PI_CAS 0000040 */ | |
| /* #define PI_ADCV 0000002 */ | |
| /* Function prototypes */ | |
| int32 MapAddr (int32 map, int32 addr); | |
| t_stat set_enb (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat set_dsb (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| #endif |