| /* h316_defs.h: Honeywell 316/516 simulator definitions | |
| Copyright (c) 1999-2011, 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. | |
| 19-Nov-11 RMS Removed XR macro, added XR_LOC macro (from Adrian Wise) | |
| 22-May-10 RMS Added check for 64b definitions | |
| 15-Feb-05 RMS Added start button interrupt | |
| 01-Dec-04 RMS Added double precision constants | |
| 24-Oct-03 RMS Added DMA/DMC support | |
| 25-Apr-03 RMS Revised for extended file support | |
| */ | |
| #ifndef _H316_DEFS_H_ | |
| #define _H316_DEFS_H_ 0 | |
| #include "sim_defs.h" /* simulator defns */ | |
| #if defined(USE_INT64) || defined(USE_ADDR64) | |
| #error "H316 does not support 64b values!" | |
| #endif | |
| /* Simulator stop codes */ | |
| #define STOP_RSRV 1 /* must be 1 */ | |
| #define STOP_IODV 2 /* must be 2 */ | |
| #define STOP_HALT 3 /* HALT */ | |
| #define STOP_IBKPT 4 /* breakpoint */ | |
| #define STOP_IND 5 /* indirect loop */ | |
| #define STOP_DMAER 6 /* DMA error */ | |
| #define STOP_MTWRP 7 /* MT write protected */ | |
| #define STOP_DPOVR 8 /* DP write overrun */ | |
| #define STOP_DPFMT 9 /* DP invalid format */ | |
| /* Memory */ | |
| #define MAXMEMSIZE 32768 /* max memory size */ | |
| #define MEMSIZE (cpu_unit.capac) /* actual memory size */ | |
| #define X_AMASK (MAXMEMSIZE - 1) /* ext address mask */ | |
| #define NX_AMASK ((MAXMEMSIZE / 2) - 1) /* nx address mask */ | |
| #define MEM_ADDR_OK(x) (((uint32) (x)) < MEMSIZE) | |
| /* Architectural constants */ | |
| #define SIGN 0100000 /* sign */ | |
| #define DP_SIGN 010000000000 | |
| #define DMASK 0177777 /* data mask */ | |
| #define MMASK (DMASK & ~SIGN) /* magnitude mask */ | |
| #define M_CLK 061 /* clock location */ | |
| #define M_RSTINT 062 /* restrict int */ | |
| #define M_INT 063 /* int location */ | |
| #define M_XR (ext? 0: (PC & 040000)) /* XR location */ | |
| /* CPU options */ | |
| #define UNIT_V_MSIZE (UNIT_V_UF + 0) /* dummy mask */ | |
| #define UNIT_V_EXT (UNIT_V_UF + 1) /* extended mem */ | |
| #define UNIT_V_HSA (UNIT_V_UF + 2) /* high speed arith */ | |
| #define UNIT_V_DMC (UNIT_V_UF + 3) /* DMC */ | |
| #define UNIT_MSIZE (1u << UNIT_V_MSIZE) | |
| #define UNIT_EXT (1u << UNIT_V_EXT) | |
| #define UNIT_HSA (1u << UNIT_V_HSA) | |
| #define UNIT_DMC (1u << UNIT_V_DMC) | |
| /* Instruction format */ | |
| #define I_M_OP 077 /* opcode */ | |
| #define I_V_OP 10 | |
| #define I_GETOP(x) (((x) >> I_V_OP) & I_M_OP) | |
| #define I_M_FNC 017 /* function */ | |
| #define I_V_FNC 6 | |
| #define I_GETFNC(x) (((x) >> I_V_FNC) & I_M_FNC) | |
| #define IA 0100000 /* indirect address */ | |
| #define IDX 0040000 /* indexed */ | |
| #define SC 0001000 /* sector */ | |
| #define DISP 0000777 /* page displacement */ | |
| #define PAGENO 0077000 /* page number */ | |
| #define INCLRA (010 << I_V_FNC) /* INA clear A */ | |
| #define DEVMASK 0000077 /* device mask */ | |
| #define SHFMASK 0000077 /* shift mask */ | |
| /* I/O opcodes */ | |
| #define ioOCP 0 /* output control */ | |
| #define ioSKS 1 /* skip if set */ | |
| #define ioINA 2 /* input to A */ | |
| #define ioOTA 3 /* output from A */ | |
| #define ioEND 4 /* channel end */ | |
| /* Device information block */ | |
| struct h316_dib { | |
| uint32 dev; /* device number */ | |
| uint32 chan; /* dma/dmc channel */ | |
| uint32 num; /* number of slots */ | |
| int32 (*io) (int32 inst, int32 fnc, int32 dat, int32 dev); }; | |
| typedef struct h316_dib DIB; | |
| /* DMA/DMC channel numbers */ | |
| #define IOBUS 0 /* IO bus */ | |
| #define DMA_MIN 1 /* 4 DMA channels */ | |
| #define DMA_MAX 4 | |
| #define DMC_MIN 1 /* 16 DMC channels */ | |
| #define DMC_MAX 16 | |
| #define DMA1 (DMA_MIN) | |
| #define DMC1 (DMA_MAX+DMC_MIN) | |
| /* DMA/DMC bit assignments in channel request word */ | |
| #define DMA_V_DMA1 0 /* DMA channels */ | |
| #define DMC_V_DMC1 4 /* DMC channels */ | |
| #define SET_CH_REQ(x) chan_req = chan_req | (1 << (x)) | |
| #define Q_DMA(x) (((x) >= 0) && ((x) < DMC_V_DMC1)) | |
| /* DMA/DMC definitions */ | |
| #define DMA_IN 0100000 /* input flag */ | |
| #define DMC_BASE 020 /* DMC memory base */ | |
| /* I/O device codes */ | |
| #define PTR 001 /* paper tape reader */ | |
| #define PTP 002 /* paper tape punch */ | |
| #define LPT 003 /* line printer */ | |
| #define TTY 004 /* console */ | |
| #define CDR 005 /* card reader */ | |
| #define MT 010 /* mag tape data */ | |
| #define CLK_KEYS 020 /* clock/keys (CPU) */ | |
| #define FHD 022 /* fixed head disk */ | |
| #define DMA 024 /* DMA control */ | |
| #define DP 025 /* moving head disk */ | |
| #define DEV_MAX 64 | |
| /* Interrupt flags, definitions correspond to SMK bits */ | |
| #define INT_V_CLK 0 /* clock */ | |
| #define INT_V_MPE 1 /* parity error */ | |
| #define INT_V_LPT 2 /* line printer */ | |
| #define INT_V_CDR 4 /* card reader */ | |
| #define INT_V_TTY 5 /* teletype */ | |
| #define INT_V_PTP 6 /* paper tape punch */ | |
| #define INT_V_PTR 7 /* paper tape reader */ | |
| #define INT_V_FHD 8 /* fixed head disk */ | |
| #define INT_V_DP 12 /* moving head disk */ | |
| #define INT_V_MT 15 /* mag tape */ | |
| #define INT_V_START 16 /* start button */ | |
| #define INT_V_NODEF 17 /* int not deferred */ | |
| #define INT_V_ON 18 /* int on */ | |
| /* I/O macros */ | |
| #define IOT_V_REASON 17 | |
| #define IOT_V_SKIP 16 | |
| #define IOT_SKIP (1u << IOT_V_SKIP) | |
| #define IORETURN(f,v) (((f)? (v): SCPE_OK) << IOT_V_REASON) | |
| #define IOBADFNC(x) (((stop_inst) << IOT_V_REASON) | (x)) | |
| #define IOSKIP(x) (IOT_SKIP | (x)) | |
| #define INT_CLK (1u << INT_V_CLK) | |
| #define INT_MPE (1u << INT_V_MPE) | |
| #define INT_LPT (1u << INT_V_LPT) | |
| #define INT_CDR (1u << INT_V_CDR) | |
| #define INT_TTY (1u << INT_V_TTY) | |
| #define INT_PTP (1u << INT_V_PTP) | |
| #define INT_PTR (1u << INT_V_PTR) | |
| #define INT_FHD (1u << INT_V_FHD) | |
| #define INT_DP (1u << INT_V_DP) | |
| #define INT_MT (1u << INT_V_MT) | |
| #define INT_START (1u << INT_V_START) | |
| #define INT_NODEF (1u << INT_V_NODEF) | |
| #define INT_ON (1u << INT_V_ON) | |
| #define INT_NMI (INT_START) | |
| #define INT_PEND (INT_ON | INT_NODEF) | |
| #define SET_INT(x) dev_int = dev_int | (x) | |
| #define CLR_INT(x) dev_int = dev_int & ~(x) | |
| #define TST_INT(x) ((dev_int & (x)) != 0) | |
| #define CLR_ENB(x) dev_enb = dev_enb & ~(x) | |
| #define TST_INTREQ(x) ((dev_int & dev_enb & (x)) != 0) | |
| /* Prototypes */ | |
| t_stat io_set_iobus (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat io_set_dma (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat io_set_dmc (UNIT *uptr, int32 val, char *cptr, void *desc); | |
| t_stat io_show_chan (FILE *st, UNIT *uptr, int32 val, void *desc); | |
| #endif |