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/* vax730_defs.h: VAX 730 model-specific definitions file
Copyright (c) 2010-2011, Matt Burke
This module incorporates code from SimH, Copyright (c) 2004-2008, 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
THE AUTHOR(S) 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(s) of the author(s) shall not be
used in advertising or otherwise to promote the sale, use or other dealings
in this Software without prior written authorization from the author(s).
29-Mar-2011 MB First Version
This file covers the VAX 11/730, the third VAX.
System memory map
00 0000 - EF FFFF main memory
F0 0000 - F1 FFFF reserved
F2 0000 - F3 FFFF nexus register space
F4 0000 - FB FFFF reserved
FC 0000 - FF FFFF Unibus address space
*/
#ifndef FULL_VAX
#define FULL_VAX 1
#endif
#ifndef _VAX_730_DEFS_H_
#define _VAX_730_DEFS_H_ 1
/* Microcode constructs */
#define VAX730_SID (3 << 24) /* system ID */
#define VAX730_MICRO (123 << 8) /* ucode revision */
#define CON_HLTPIN 0x0200 /* external CPU halt */
#define CON_HLTINS 0x0600 /* HALT instruction */
#define MCHK_NXM 0x08 /* NXM */
#define MCHK_IIA 0x0A /* illegal i/o addr */
#define MCHK_IUA 0x0B /* illegal unibus addr */
/* Interrupts */
#define IPL_HMAX 0x17 /* highest hwre level */
#define IPL_HMIN 0x14 /* lowest hwre level */
#define IPL_HLVL (IPL_HMAX - IPL_HMIN + 1) /* # hardware levels */
#define IPL_SMAX 0xF /* highest swre level */
/* Nexus constants */
#define NEXUS_NUM 16 /* number of nexus */
#define TR_MCTL 0 /* nexus assignments */
#define TR_UBA 3
#define NEXUS_HLVL (IPL_HMAX - IPL_HMIN + 1)
#define SCB_NEXUS 0x100 /* nexus intr base */
/* Internal I/O interrupts - relative except for clock and console */
#define IPL_CLKINT 0x18 /* clock IPL */
#define IPL_TTINT 0x14 /* console IPL */
#define IPL_CSINT 0x14 /* console storage IPL */
#define IPL_UBA (0x15 - IPL_HMIN)
/* Machine specific IPRs */
#define MT_CSRS 28 /* Console storage */
#define MT_CSRD 29
#define MT_CSTS 30
#define MT_CSTD 31
#define MT_CDR 37 /* Cache disable */
#define MT_MCESR 38 /* MCHK err sts */
#define MT_ACCS 40 /* FPA control */
#define MT_ACCR 41 /* FPA maint */
#define MT_SBIFS 48 /* SBI fault status */
#define MT_SBIS 49 /* SBI silo */
#define MT_SBISC 50 /* SBI silo comparator */
#define MT_SBIMT 51 /* SBI maint */
#define MT_SBIER 52 /* SBI error */
#define MT_SBITA 53 /* SBI timeout addr */
#define MT_SBIQC 54 /* SBI timeout clear */
#define MT_UBINIT 55 /* Unibus Init */
#define MT_MAX 63 /* last valid IPR */
/* Machine specific reserved operand tests */
/* 780 microcode patch 37 - only test LR<23:0> for appropriate length */
#define ML_LR_TEST(r) if ((uint32)((r) & 0xFFFFFF) > 0x200000) RSVD_OPND_FAULT
/* 780 microcode patch 38 - only test PxBR<31>=1 and xBR<1:0> = 0 */
#define ML_PXBR_TEST(r) if ((((r) & 0x80000000) == 0) || \
((r) & 0x00000003)) RSVD_OPND_FAULT
#define ML_SBR_TEST(r) if ((r) & 0x00000003) RSVD_OPND_FAULT
/* 780 microcode patch 78 - only test xCBB<1:0> = 0 */
#define ML_PA_TEST(r) if ((r) & 0x00000003) RSVD_OPND_FAULT
#define LP_AST_TEST(r) if ((r) > AST_MAX) RSVD_OPND_FAULT
#define LP_MBZ84_TEST(r) if ((r) & 0xF8C00000) RSVD_OPND_FAULT
#define LP_MBZ92_TEST(r) if ((r) & 0x7FC00000) RSVD_OPND_FAULT
/* Memory */
#define MAXMEMWIDTH 21 /* max mem, 16k chips */
#define MAXMEMSIZE (1 << MAXMEMWIDTH)
#define MAXMEMWIDTH_X 23 /* max mem, 64k chips */
#define MAXMEMSIZE_X (1 << MAXMEMWIDTH_X)
#define INITMEMSIZE (1 << MAXMEMWIDTH) /* initial memory size */
#define MEMSIZE (cpu_unit.capac)
#define ADDR_IS_MEM(x) (((uint32) (x)) < MEMSIZE)
#define MEM_MODIFIERS { UNIT_MSIZE, (1u << 20), NULL, "1M", &cpu_set_size }, \
{ UNIT_MSIZE, (1u << 21), NULL, "2M", &cpu_set_size }, \
{ UNIT_MSIZE, (1u << 22), NULL, "4M", &cpu_set_size }
/* Unibus I/O registers */
#define UBADDRWIDTH 18 /* Unibus addr width */
#define UBADDRSIZE (1u << UBADDRWIDTH) /* Unibus addr length */
#define UBADDRMASK (UBADDRSIZE - 1) /* Unibus addr mask */
#define IOPAGEAWIDTH 13 /* IO addr width */
#define IOPAGESIZE (1u << IOPAGEAWIDTH) /* IO page length */
#define IOPAGEMASK (IOPAGESIZE - 1) /* IO addr mask */
#define UBAMAPWIDTH 11 /* Unibus map width */
#define UBAMAPSIZE 0x7FC /* Unibus map length */
#define UBADDRBASE 0xFC0000 /* Unibus addr base */
#define IOPAGEBASE 0xFFE000 /* IO page base */
#define UBAMAPBASE 0xF26800 /* Unibus map base */
#define ADDR_IS_IO(x) ((((uint32) (x)) >= UBADDRBASE) && \
(((uint32) (x)) < (UBADDRBASE + UBADDRSIZE)))
#define ADDR_IS_IOP(x) (((uint32) (x)) >= IOPAGEBASE)
#define ADDR_IS_IOM(x) ((((uint32) (x)) >= UBAMAPBASE) && \
(((uint32) (x)) < (UBAMAPBASE + UBAMAPSIZE)))
/* Nexus register space */
#define REGAWIDTH 19 /* REG addr width */
#define REG_V_NEXUS 13 /* nexus number */
#define REG_M_NEXUS 0xF
#define REG_V_OFS 2 /* register number */
#define REG_M_OFS 0x7FF
#define REGSIZE (1u << REGAWIDTH) /* REG length */
#define REGBASE 0xF00000 /* REG addr base */
#define ADDR_IS_REG(x) ((((uint32) (x)) >= REGBASE) && \
(((uint32) (x)) < (REGBASE + REGSIZE)))
#define NEXUS_GETNEX(x) (((x) >> REG_V_NEXUS) & REG_M_NEXUS)
#define NEXUS_GETOFS(x) (((x) >> REG_V_OFS) & REG_M_OFS)
/* Other address spaces */
#define ADDR_IS_ROM(x) (0)
#define ADDR_IS_CDG(x) (0)
#define ADDR_IS_NVR(x) (0)
/* Unibus I/O modes */
#define READ 0 /* PDP-11 compatibility */
#define WRITE (L_WORD)
#define WRITEB (L_BYTE)
/* Common CSI flags */
#define CSR_V_GO 0 /* go */
#define CSR_V_IE 6 /* interrupt enable */
#define CSR_V_DONE 7 /* done */
#define CSR_V_BUSY 11 /* busy */
#define CSR_V_ERR 15 /* error */
#define CSR_GO (1u << CSR_V_GO)
#define CSR_IE (1u << CSR_V_IE)
#define CSR_DONE (1u << CSR_V_DONE)
#define CSR_BUSY (1u << CSR_V_BUSY)
#define CSR_ERR (1u << CSR_V_ERR)
/* Timers */
#define TMR_CLK 0 /* 100Hz clock */
/* I/O system definitions */
#define DZ_MUXES 4 /* max # of DZV muxes */
#define DZ_LINES 8 /* lines per DZV mux */
#define VH_MUXES 4 /* max # of DHQ muxes */
#define DLX_LINES 16 /* max # of KL11/DL11's */
#define DCX_LINES 16 /* max # of DC11's */
#define MT_MAXFR (1 << 16) /* magtape max rec */
#define DEV_V_UBUS (DEV_V_UF + 0) /* Unibus */
#define DEV_V_NEXUS (DEV_V_UF + 1) /* Nexus */
#define DEV_V_FFUF (DEV_V_UF + 2) /* first free flag */
#define DEV_UBUS (1u << DEV_V_UBUS)
#define DEV_NEXUS (1u << DEV_V_NEXUS)
#define DEV_QBUS (0)
#define DEV_Q18 (0)
#define UNIBUS TRUE /* Unibus only */
#define DEV_RDX 16 /* default device radix */
/* Device information block
For Nexus devices,
ba = Nexus number
lnt = number of consecutive nexi */
#define VEC_DEVMAX 4 /* max device vec */
typedef struct {
uint32 ba; /* base addr */
uint32 lnt; /* length */
t_stat (*rd)(int32 *dat, int32 ad, int32 md);
t_stat (*wr)(int32 dat, int32 ad, int32 md);
int32 vnum; /* vectors: number */
int32 vloc; /* locator */
int32 vec; /* value */
int32 (*ack[VEC_DEVMAX])(void); /* ack routine */
} DIB;
/* Unibus I/O page layout - see pdp11_ui_lib.c for address layout details */
#define IOBA_AUTO (0) /* Assigned by Auto Configure */
/* Interrupt assignments; within each level, priority is right to left */
#define INT_V_DZRX 0 /* BR5 */
#define INT_V_DZTX 1
#define INT_V_HK 2
#define INT_V_RL 3
#define INT_V_RB 4
#define INT_V_RQ 5
#define INT_V_TQ 6
#define INT_V_TS 7
#define INT_V_RY 8
#define INT_V_XU 9
#define INT_V_DMCRX 10
#define INT_V_DMCTX 11
#define INT_V_LPT 0 /* BR4 */
#define INT_V_PTR 1
#define INT_V_PTP 2
#define INT_V_CR 3
#define INT_V_VHRX 4
#define INT_V_VHTX 5
#define INT_DZRX (1u << INT_V_DZRX)
#define INT_DZTX (1u << INT_V_DZTX)
#define INT_HK (1u << INT_V_HK)
#define INT_RL (1u << INT_V_RL)
#define INT_RQ (1u << INT_V_RQ)
#define INT_TQ (1u << INT_V_TQ)
#define INT_TS (1u << INT_V_TS)
#define INT_RY (1u << INT_V_RY)
#define INT_XU (1u << INT_V_XU)
#define INT_RB (1u << INT_V_RB)
#define INT_LPT (1u << INT_V_LPT)
#define INT_VHRX (1u << INT_V_VHRX)
#define INT_VHTX (1u << INT_V_VHTX)
#define INT_PTR (1u << INT_V_PTR)
#define INT_PTP (1u << INT_V_PTP)
#define INT_CR (1u << INT_V_CR)
#define INT_DMCRX (1u << INT_V_DMCRX)
#define INT_DMCTX (1u << INT_V_DMCTX)
#define IPL_DZRX (0x15 - IPL_HMIN)
#define IPL_DZTX (0x15 - IPL_HMIN)
#define IPL_HK (0x15 - IPL_HMIN)
#define IPL_RL (0x15 - IPL_HMIN)
#define IPL_RQ (0x15 - IPL_HMIN)
#define IPL_TQ (0x15 - IPL_HMIN)
#define IPL_TS (0x15 - IPL_HMIN)
#define IPL_RY (0x15 - IPL_HMIN)
#define IPL_XU (0x15 - IPL_HMIN)
#define IPL_RB (0x15 - IPL_HMIN)
#define IPL_LPT (0x14 - IPL_HMIN)
#define IPL_PTR (0x14 - IPL_HMIN)
#define IPL_PTP (0x14 - IPL_HMIN)
#define IPL_CR (0x14 - IPL_HMIN)
#define IPL_VHRX (0x14 - IPL_HMIN)
#define IPL_VHTX (0x14 - IPL_HMIN)
#define IPL_DMCRX (0x15 - IPL_HMIN)
#define IPL_DMCTX (0x15 - IPL_HMIN)
/* Device vectors */
#define VEC_AUTO (0) /* Assigned by Auto Configure */
#define VEC_FLOAT (0) /* Assigned by Auto Configure */
#define VEC_QBUS 0
#define VEC_Q 0x200
/* Interrupt macros */
#define IVCL(dv) ((IPL_##dv * 32) + INT_V_##dv)
#define NVCL(dv) ((IPL_##dv * 32) + TR_##dv)
#define IREQ(dv) int_req[IPL_##dv]
#define SET_INT(dv) int_req[IPL_##dv] = int_req[IPL_##dv] | (INT_##dv)
#define CLR_INT(dv) int_req[IPL_##dv] = int_req[IPL_##dv] & ~(INT_##dv)
#define IORETURN(f,v) ((f)? (v): SCPE_OK) /* cond error return */
/* Logging */
#define LOG_CPU_I 0x1 /* intexc */
#define LOG_CPU_R 0x2 /* REI */
#define LOG_CPU_P 0x4 /* context */
/* Boot definitions */
#define BOOT_MB 0 /* device codes */
#define BOOT_HK 1 /* for VMB */
#define BOOT_RL 2
#define BOOT_RB 3
#define BOOT_UDA 17
#define BOOT_TK 18
#define BOOT_TD 64
/* Function prototypes for virtual memory interface */
int32 Read (uint32 va, int32 lnt, int32 acc);
void Write (uint32 va, int32 val, int32 lnt, int32 acc);
/* Function prototypes for physical memory interface (inlined) */
SIM_INLINE int32 ReadB (uint32 pa);
SIM_INLINE int32 ReadW (uint32 pa);
SIM_INLINE int32 ReadL (uint32 pa);
SIM_INLINE int32 ReadLP (uint32 pa);
SIM_INLINE void WriteB (uint32 pa, int32 val);
SIM_INLINE void WriteW (uint32 pa, int32 val);
SIM_INLINE void WriteL (uint32 pa, int32 val);
void WriteLP (uint32 pa, int32 val);
/* Function prototypes for I/O */
int32 Map_ReadB (uint32 ba, int32 bc, uint8 *buf);
int32 Map_ReadW (uint32 ba, int32 bc, uint16 *buf);
int32 Map_WriteB (uint32 ba, int32 bc, uint8 *buf);
int32 Map_WriteW (uint32 ba, int32 bc, uint16 *buf);
t_stat show_nexus (FILE *st, UNIT *uptr, int32 val, void *desc);
void sbi_set_errcnf (void);
int32 clk_cosched (int32 wait);
#include "pdp11_io_lib.h"
#endif