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[/] [or1k/] [trunk/] [uclinux/] [uClinux-2.0.x/] [include/] [asm-i960/] [traps.h] - Blame information for rev 199

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1 199 simons
/*
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 *  linux/include/asm/traps.h
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 *
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 *  Copyright (C) 1993        Hamish Macdonald
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 *
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 * This file is subject to the terms and conditions of the GNU General Public
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 * License.  See the file COPYING in the main directory of this archive
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 * for more details.
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 */
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/* FIXME much work to do here */
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#ifndef _M68K_TRAPS_H
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#define _M68K_TRAPS_H
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typedef void (*e_vector)(void);
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extern e_vector vectors[];
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#define VEC_BUSERR  (2)
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#define VEC_ADDRERR (3)
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#define VEC_ILLEGAL (4)
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#define VEC_ZERODIV (5)
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#define VEC_CHK     (6)
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#define VEC_TRAP    (7)
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#define VEC_PRIV    (8)
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#define VEC_TRACE   (9)
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#define VEC_LINE10  (10)
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#define VEC_LINE11  (11)
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#define VEC_RESV1   (12)
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#define VEC_COPROC  (13)
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#define VEC_FORMAT  (14)
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#define VEC_UNINT   (15)
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#define VEC_SYS     (32)
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#define VEC_TRAP1   (33)
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#define VEC_TRAP2   (34)
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#define VEC_TRAP3   (35)
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#define VEC_TRAP4   (36)
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#define VEC_TRAP5   (37)
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#define VEC_TRAP6   (38)
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#define VEC_TRAP7   (39)
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#define VEC_TRAP8   (40)
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#define VEC_TRAP9   (41)
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#define VEC_TRAP10  (42)
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#define VEC_TRAP11  (43)
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#define VEC_TRAP12  (44)
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#define VEC_TRAP13  (45)
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#define VEC_TRAP14  (46)
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#define VEC_TRAP15  (47)
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#define VEC_FPBRUC  (48)
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#define VEC_FPIR    (49)
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#define VEC_FPDIVZ  (50)
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#define VEC_FPUNDER (51)
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#define VEC_FPOE    (52)
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#define VEC_FPOVER  (53)
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#define VEC_FPNAN   (54)
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#define VEC_FPUNSUP (55)
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#define VEC_UNIMPEA (60)
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#define VEC_UNIMPII (61)
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#define VEC_SPUR    (64)
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#define VEC_INT1    (65)
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#define VEC_INT2    (66)
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#define VEC_INT3    (67)
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#define VEC_INT4    (68)
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#define VEC_INT5    (69)
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#define VEC_INT6    (70)
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#define VEC_INT7    (71)
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#define VECOFF(vec) ((vec)<<2)
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/* Status register bits */
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#define PS_T  (0x8000)
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#define PS_S  (0x2000)
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#define PS_M  (0x1000)
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#define PS_C  (0x0001)
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/* bits for 68020/68030 special status word */
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#define FC    (0x8000)
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#define FB    (0x4000)
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#define RC    (0x2000)
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#define RB    (0x1000)
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#define DF    (0x0100)
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#define RM    (0x0080)
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#define RW    (0x0040)
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#define SZ    (0x0030)
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#define DFC   (0x0007)
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/* bits for 68030 MMU status register (mmusr,psr) */
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#define MMU_B        (0x8000)    /* bus error */
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#define MMU_L        (0x4000)    /* limit violation */
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#define MMU_S        (0x2000)    /* supervisor violation */
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#define MMU_WP       (0x0800)    /* write-protected */
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#define MMU_I        (0x0400)    /* invalid descriptor */
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#define MMU_M        (0x0200)    /* ATC entry modified */
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#define MMU_T        (0x0040)    /* transparent translation */
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#define MMU_NUM      (0x0007)    /* number of levels traversed */
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/* bits for 68040 special status word */
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#define CP_040  (0x8000)
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#define CU_040  (0x4000)
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#define CT_040  (0x2000)
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#define CM_040  (0x1000)
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#define MA_040  (0x0800)
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#define ATC_040 (0x0400)
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#define LK_040  (0x0200)
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#define RW_040  (0x0100)
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#define SIZ_040 (0x0060)
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#define TT_040  (0x0018)
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#define TM_040  (0x0007)
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/* bits for 68040 write back status word */
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#define WBV_040   (0x80)
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#define WBSIZ_040 (0x60)
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#define WBBYT_040 (0x20)
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#define WBWRD_040 (0x40)
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#define WBLNG_040 (0x00)
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#define WBTT_040  (0x18)
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#define WBTM_040  (0x07)
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/* bus access size codes */
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#define BA_SIZE_BYTE    (0x20)
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#define BA_SIZE_WORD    (0x40)
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#define BA_SIZE_LONG    (0x00)
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#define BA_SIZE_LINE    (0x60)
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/* bus access transfer type codes */
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#define BA_TT_MOVE16    (0x08)
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#ifndef NO_MMU
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/* bits for 68040 MMU status register (mmusr) */
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#define MMU_B_040   (0x0800)
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#define MMU_G_040   (0x0400)
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#define MMU_S_040   (0x0080)
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#define MMU_CM_040  (0x0060)
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#define MMU_M_040   (0x0010)
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#define MMU_WP_040  (0x0004)
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#define MMU_T_040   (0x0002)
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#define MMU_R_040   (0x0001)
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/* bits in the 68060 fault status long word (FSLW) */
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#define MMU060_MA       (0x08000000)    /* misaligned */
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#define MMU060_LK       (0x02000000)    /* locked transfer */
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#define MMU060_RW       (0x01800000)    /* read/write */
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# define MMU060_RW_W    (0x00800000)    /* write */
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# define MMU060_RW_R    (0x01000000)    /* read */
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# define MMU060_RW_RMW  (0x01800000)    /* read/modify/write */
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# define MMU060_W               (0x00800000)    /* general write, includes rmw */
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#define MMU060_SIZ      (0x00600000)    /* transfer size */
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#define MMU060_TT       (0x00180000)    /* transfer type (TT) bits */
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#define MMU060_TM       (0x00070000)    /* transfer modifier (TM) bits */
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#define MMU060_IO       (0x00008000)    /* instruction or operand */
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#define MMU060_PBE      (0x00004000)    /* push buffer bus error */
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#define MMU060_SBE      (0x00002000)    /* store buffer bus error */
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#define MMU060_PTA      (0x00001000)    /* pointer A fault */
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#define MMU060_PTB      (0x00000800)    /* pointer B fault */
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#define MMU060_IL       (0x00000400)    /* double indirect descr fault */
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#define MMU060_PF       (0x00000200)    /* page fault (invalid descr) */
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#define MMU060_SP       (0x00000100)    /* supervisor protection */
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#define MMU060_WP       (0x00000080)    /* write protection */
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#define MMU060_TWE      (0x00000040)    /* bus error on table search */
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#define MMU060_RE       (0x00000020)    /* bus error on read */
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#define MMU060_WE       (0x00000010)    /* bus error on write */
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#define MMU060_TTR      (0x00000008)    /* error caused by TTR translation */
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#define MMU060_BPE      (0x00000004)    /* branch prediction error */
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#define MMU060_SEE      (0x00000001)    /* software emulated error */
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/* cases of missing or invalid descriptors */
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#define MMU060_DESC_ERR (MMU060_TWE | MMU060_PTA | MMU060_PTB | \
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                                                 MMU060_IL  | MMU060_PF)
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/* bits that indicate real errors */
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#define MMU060_ERR_BITS (MMU060_PBE | MMU060_SBE | MMU060_DESC_ERR | \
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                                                 MMU060_SP  | MMU060_WP  | MMU060_RE | \
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                                                 MMU060_WE)
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#endif
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/* structure for stack frames */
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struct frame {
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    struct pt_regs ptregs;
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    union {
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            struct {
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                    unsigned long  iaddr;    /* instruction address */
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            } fmt2;
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            struct {
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                    unsigned long  effaddr;  /* effective address */
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            } fmt3;
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            struct {
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                    unsigned long  effaddr;  /* effective address */
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                    unsigned long  pc;       /* pc of faulted instr */
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            } fmt4;
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            struct {
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                    unsigned long  effaddr;  /* effective address */
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                    unsigned short ssw;      /* special status word */
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                    unsigned short wb3s;     /* write back 3 status */
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                    unsigned short wb2s;     /* write back 2 status */
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                    unsigned short wb1s;     /* write back 1 status */
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                    unsigned long  faddr;    /* fault address */
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                    unsigned long  wb3a;     /* write back 3 address */
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                    unsigned long  wb3d;     /* write back 3 data */
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                    unsigned long  wb2a;     /* write back 2 address */
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                    unsigned long  wb2d;     /* write back 2 data */
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                    unsigned long  wb1a;     /* write back 1 address */
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                    unsigned long  wb1dpd0;  /* write back 1 data/push data 0*/
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                    unsigned long  pd1;      /* push data 1*/
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                    unsigned long  pd2;      /* push data 2*/
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                    unsigned long  pd3;      /* push data 3*/
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            } fmt7;
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            struct {
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                    unsigned long  iaddr;    /* instruction address */
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                    unsigned short int1[4];  /* internal registers */
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            } fmt9;
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            struct {
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                    unsigned short int1;
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                    unsigned short ssw;      /* special status word */
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                    unsigned short isc;      /* instruction stage c */
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                    unsigned short isb;      /* instruction stage b */
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                    unsigned long  daddr;    /* data cycle fault address */
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                    unsigned short int2[2];
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                    unsigned long  dobuf;    /* data cycle output buffer */
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                    unsigned short int3[2];
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            } fmta;
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            struct {
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                    unsigned short int1;
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                    unsigned short ssw;     /* special status word */
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                    unsigned short isc;     /* instruction stage c */
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                    unsigned short isb;     /* instruction stage b */
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                    unsigned long  daddr;   /* data cycle fault address */
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                    unsigned short int2[2];
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                    unsigned long  dobuf;   /* data cycle output buffer */
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                    unsigned short int3[4];
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                    unsigned long  baddr;   /* stage B address */
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                    unsigned short int4[2];
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                    unsigned long  dibuf;   /* data cycle input buffer */
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                    unsigned short int5[3];
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                    unsigned       ver : 4; /* stack frame version # */
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                    unsigned       int6:12;
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                    unsigned short int7[18];
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            } fmtb;
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            struct {
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                    unsigned long  faddr;   /* faulted address */
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                    unsigned long  dbuf;
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                    unsigned long  pc;      /* current instruction PC */
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                    unsigned short itc;     /* internal transfer count */
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                    unsigned       code :2;
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                    unsigned       ssr :14; /* special status word */
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            } fmtc;
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    } un;
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};
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#endif /* _M68K_TRAPS_H */

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