1a3e5af755
Refactor in preparation for the addition of a Rev 3 simulator for the
3B2/1000 system.
This change also includes a full cleanup of the rat's-nest of includes
and externs that plagued the 3B2 simulator and made it difficult to
understand and maintain. Headers are now required in the following
order:
compilation unit -> "3b2_defs.h" -> {... dependencies ...}
Finally, HELP has been added to the CPU device.
174 lines
5 KiB
C
174 lines
5 KiB
C
/* 3b2_defs.h: AT&T 3B2 Shared Simulator Definitions
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Copyright (c) 2017, Seth J. Morabito
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation
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files (the "Software"), to deal in the Software without
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restriction, including without limitation the rights to use, copy,
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modify, merge, publish, distribute, sublicense, and/or sell copies
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of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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Except as contained in this notice, the name of the author shall
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not be used in advertising or otherwise to promote the sale, use or
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other dealings in this Software without prior written authorization
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from the author.
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*/
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#ifndef _3B2_DEFS_H_
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#define _3B2_DEFS_H_
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#include "sim_defs.h"
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#include "sim_tmxr.h"
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#include <setjmp.h>
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#if defined(REV3)
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#include "3b2_1000_defs.h"
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#else
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#include "3b2_400_defs.h"
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#include "3b2_400_cpu.h"
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#include "3b2_400_mau.h"
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#include "3b2_400_mmu.h"
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#include "3b2_400_stddev.h"
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#include "3b2_400_sys.h"
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#include "3b2_id.h"
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#endif
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#include "3b2_io.h"
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#include "3b2_dmac.h"
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#include "3b2_if.h"
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#include "3b2_iu.h"
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#include "3b2_ports.h"
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#include "3b2_ctc.h"
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#include "3b2_ni.h"
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#ifndef FALSE
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#define FALSE 0
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#endif
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#ifndef TRUE
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#define TRUE 1
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#endif
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#if defined(__GNUC__)
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#define noret void __attribute__((noreturn))
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#else
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#define noret void
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#endif
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#if defined(__GLIBC__) && !defined(__cplusplus)
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/* use glibc internal longjmp to bypass fortify checks */
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noret __libc_longjmp(jmp_buf buf, int val);
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#define longjmp __libc_longjmp
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#endif
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#ifndef MAX
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#define MAX(x, y) ((x) > (y) ? (x) : (y))
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#endif
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#ifndef MIN
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#define MIN(x, y) ((x) < (y) ? (x) : (y))
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#endif
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#ifndef UNUSED
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#define UNUSED(x) ((void)((x)))
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#endif
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#define UNIT_V_EXHALT (UNIT_V_UF + 0)
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#define UNIT_EXHALT (1u << UNIT_V_EXHALT)
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#define EX_V_FLAG 1 << 21
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#define PHYS_MEM_BASE 0x2000000
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/* Simulator stop codes */
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#define STOP_RSRV 1
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#define STOP_IBKPT 2 /* Breakpoint encountered */
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#define STOP_OPCODE 3 /* Invalid opcode */
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#define STOP_IRQ 4 /* Interrupt */
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#define STOP_EX 5 /* Exception */
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#define STOP_ESTK 6 /* Exception stack too deep */
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#define STOP_MMU 7 /* Unimplemented MMU Feature */
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#define STOP_POWER 8 /* System power-off */
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#define STOP_LOOP 9 /* Infinite loop stop */
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#define STOP_ERR 10 /* Other error */
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/* Debug flags */
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#define READ_MSG 0x0001
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#define WRITE_MSG 0x0002
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#define DECODE_MSG 0x0004
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#define EXECUTE_MSG 0x0008
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#define INIT_MSG 0x0010
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#define IRQ_MSG 0x0020
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#define IO_DBG 0x0040
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#define CIO_DBG 0x0080
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#define TRACE_DBG 0x0100
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#define CALL_DBG 0x0200
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#define PKT_DBG 0x0400
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#define ERR_MSG 0x0800
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#define CACHE_DBG 0x1000
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#define DECODE_DBG 0x2000
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/* Global symbols */
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extern volatile int32 stop_reason;
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extern CIO_STATE cio[CIO_SLOTS];
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extern instr *cpu_instr;
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extern uint32 *ROM;
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extern uint32 *RAM;
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extern uint32 R[16];
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extern REG cpu_reg[];
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extern UNIT cpu_unit;
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extern uint8 fault;
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extern t_bool cpu_km;
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extern uint32 R[16];
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extern char sim_name[];
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extern REG *sim_PC;
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extern int32 sim_emax;
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extern uint16 csr_data;
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extern int32 tmxr_poll;
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extern DEBTAB sys_deb_tab[];
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extern DEVICE contty_dev;
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extern DEVICE cpu_dev;
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extern DEVICE csr_dev;
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extern DEVICE ctc_dev;
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extern DEVICE dmac_dev;
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extern DEVICE id_dev;
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extern DEVICE if_dev;
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extern DEVICE iu_timer_dev;
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extern DEVICE mau_dev;
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extern DEVICE mmu_dev;
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extern DEVICE ni_dev;
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extern DEVICE nvram_dev;
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extern DEVICE ports_dev;
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extern DEVICE timer_dev;
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extern DEVICE tod_dev;
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extern DEVICE tti_dev;
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extern DEVICE tto_dev;
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extern IU_PORT iu_console;
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extern IU_PORT iu_contty;
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extern IF_STATE if_state;
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extern MMU_STATE mmu_state;
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extern DMA_STATE dma_state;
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extern t_bool id_drq;
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extern t_bool if_irq;
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extern t_bool cio_skip_seqbit;
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extern t_bool iu_increment_a;
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extern t_bool iu_increment_b;
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#endif
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