[unix-history] / usr / src / sys / hp300 / include / frame.h

/*
* Copyright (c) 1988 University of Utah.
* Copyright (c) 1982, 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* the Systems Programming Group of the University of Utah Computer
* Science Department.
*
* %sccs.include.redist.c%
*
* from: Utah $Hdr: frame.h 1.8 92/12/20$
*
*      @(#)frame.h     7.4 (Berkeley) %G%
*/

struct frame {
       int     f_regs[16];
       short   f_pad;
       short   f_stackadj;
       u_short f_sr;
       u_int   f_pc;
       u_short f_format:4,
               f_vector:12;
       union F_u {
               struct fmt2 {
                       u_int   f_iaddr;
               } F_fmt2;

               struct fmt3 {
                       u_int   f_ea;
               } F_fmt3;

               struct fmt7 {
                       u_int   f_ea;
                       u_short f_ssw;
                       u_short f_wb3s, f_wb2s, f_wb1s;
                       u_int   f_fa;
                       u_int   f_wb3a, f_wb3d;
                       u_int   f_wb2a, f_wb2d;
                       u_int   f_wb1a, f_wb1d;
#define                         f_pd0 f_wb1d
                       u_int   f_pd1, f_pd2, f_pd3;
               } F_fmt7;

               struct fmt9 {
                       u_int   f_iaddr;
                       u_short f_iregs[4];
               } F_fmt9;

               struct fmtA {
                       u_short f_ir0;
                       u_short f_ssw;
                       u_short f_ipsc;
                       u_short f_ipsb;
                       u_int   f_dcfa;
                       u_short f_ir1, f_ir2;
                       u_int   f_dob;
                       u_short f_ir3, f_ir4;
               } F_fmtA;

               struct fmtB {
                       u_short f_ir0;
                       u_short f_ssw;
                       u_short f_ipsc;
                       u_short f_ipsb;
                       u_int   f_dcfa;
                       u_short f_ir1, f_ir2;
                       u_int   f_dob;
                       u_short f_ir3, f_ir4;
                       u_short f_ir5, f_ir6;
                       u_int   f_sba;
                       u_short f_ir7, f_ir8;
                       u_int   f_dib;
                       u_short f_iregs[22];
               } F_fmtB;
       } F_u;
};

#define f_fmt2          F_u.F_fmt2
#define f_fmt3          F_u.F_fmt3
#define f_fmt7          F_u.F_fmt7
#define f_fmt9          F_u.F_fmt9
#define f_fmtA          F_u.F_fmtA
#define f_fmtB          F_u.F_fmtB

/* common frame size */
#define CFSIZE          (sizeof(struct frame) - sizeof(union F_u))
#define NFMTSIZE        8

#define FMT0            0x0
#define FMT1            0x1
#define FMT2            0x2
#define FMT3            0x3
#define FMT7            0x7
#define FMT9            0x9
#define FMTA            0xA
#define FMTB            0xB

/* frame specific info sizes */
#define FMT0SIZE        0
#define FMT1SIZE        0
#define FMT2SIZE        sizeof(struct fmt2)
#define FMT3SIZE        sizeof(struct fmt3)
#define FMT7SIZE        sizeof(struct fmt7)
#define FMT9SIZE        sizeof(struct fmt9)
#define FMTASIZE        sizeof(struct fmtA)
#define FMTBSIZE        sizeof(struct fmtB)

#define V_BUSERR        0x008
#define V_ADDRERR       0x00C
#define V_TRAP1         0x084

/* 68020/68030 SSW bits */
#define SSW_RC          0x2000
#define SSW_RB          0x1000
#define SSW_DF          0x0100
#define SSW_RM          0x0080
#define SSW_RW          0x0040
#define SSW_FCMASK      0x0007

/* 68040 SSW bits */
#define SSW4_CP         0x8000
#define SSW4_CU         0x4000
#define SSW4_CT         0x2000
#define SSW4_CM         0x1000
#define SSW4_MA         0x0800
#define SSW4_ATC        0x0400
#define SSW4_LK         0x0200
#define SSW4_RW         0x0100
#define SSW4_WBSV       0x0080  /* really in WB status, not SSW */
#define SSW4_SZMASK     0x0060
#define SSW4_SZLW       0x0000
#define SSW4_SZB        0x0020
#define SSW4_SZW        0x0040
#define SSW4_SZLN       0x0060
#define SSW4_TTMASK     0x0018
#define SSW4_TTNOR      0x0000
#define SSW4_TTM16      0x0008
#define SSW4_TMMASK     0x0007
#define SSW4_TMDCP      0x0000
#define SSW4_TMUD       0x0001
#define SSW4_TMUC       0x0002
#define SSW4_TMKD       0x0005
#define SSW4_TMKC       0x0006

struct fpframe {
       union FPF_u1 {
               u_int   FPF_null;
               struct {
                       u_char  FPF_version;
                       u_char  FPF_fsize;
                       u_short FPF_res1;
               } FPF_nonnull;
       } FPF_u1;
       union FPF_u2 {
               struct fpidle {
                       u_short fpf_ccr;
                       u_short fpf_res2;
                       u_int   fpf_iregs1[8];
                       u_int   fpf_xops[3];
                       u_int   fpf_opreg;
                       u_int   fpf_biu;
               } FPF_idle;

               struct fpbusy {
                       u_int   fpf_iregs[53];
               } FPF_busy;

               struct fpunimp {
                       u_int   fpf_state[10];
               } FPF_unimp;
       } FPF_u2;
       u_int   fpf_regs[8*3];
       u_int   fpf_fpcr;
       u_int   fpf_fpsr;
       u_int   fpf_fpiar;
};

#define fpf_null        FPF_u1.FPF_null
#define fpf_version     FPF_u1.FPF_nonnull.FPF_version
#define fpf_fsize       FPF_u1.FPF_nonnull.FPF_fsize
#define fpf_res1        FPF_u1.FPF_nonnull.FPF_res1
#define fpf_idle        FPF_u2.FPF_idle
#define fpf_busy        FPF_u2.FPF_busy
#define fpf_unimp       FPF_u2.FPF_unimp