Subversion Repositories planix.SVN

/*
 * 68020 definition
 */
#include <u.h>
#include "68020/ureg.h"
#include <libc.h>
#include <bio.h>
#include <mach.h>

#define MAXREG  0
#define MINREG  0

#define REGOFF(x)       (ulong)(&((struct Ureg *) 0)->x)

#define VO      REGOFF(vo)              /* vo, 2 bytes */
#define SR      REGOFF(sr)              /* sr, 2 bytes */
#define R0      REGOFF(r0)
#define PC      REGOFF(pc)
#define DBMAGIC REGOFF(magic)
#define SP      REGOFF(usp)

#define REGSIZE         (R0+4)
#define FCTL(x)         (REGSIZE+(x)*4)
#define FREG(x)         (FCTL(3)+(x)*12)
#define FPREGSIZE       (11*12)

/*
 *      68020 register set
 */
Reglist m68020reglist[] = {
        {"VO",          VO,             RINT,   'x'},
        {"SR",          SR,             RINT,   'x'},
        {"MAGIC",       DBMAGIC,        RINT,   'X'},
        {"PC",          PC,             RINT,   'X'},
        {"A7",          SP,             RINT,   'X'},
        {"KSP",         REGOFF(sp),     RINT,   'X'},
        {"A6",          REGOFF(a6),     RINT,   'X'},
        {"A5",          REGOFF(a5),     RINT,   'X'},
        {"A4",          REGOFF(a4),     RINT,   'X'},
        {"A3",          REGOFF(a3),     RINT,   'X'},
        {"A2",          REGOFF(a2),     RINT,   'X'},
        {"A1",          REGOFF(a1),     RINT,   'X'},
        {"A0",          REGOFF(a0),     RINT,   'X'},
        {"R7",          REGOFF(r7),     RINT,   'X'},
        {"R6",          REGOFF(r6),     RINT,   'X'},
        {"R5",          REGOFF(r5),     RINT,   'X'},
        {"R4",          REGOFF(r4),     RINT,   'X'},
        {"R3",          REGOFF(r3),     RINT,   'X'},
        {"R2",          REGOFF(r2),     RINT,   'X'},
        {"R1",          REGOFF(r1),     RINT,   'X'},
        {"R0",          REGOFF(r0),     RINT,   'X'},
        {"FPCR",        FCTL(0),        RFLT,   'X'},
        {"FPSR",        FCTL(1),        RFLT,   'X'},
        {"FPIAR",       FCTL(2),        RFLT,   'X'},
        {"F0",          FREG(0),        RFLT,   '8'},
        {"F1",          FREG(1),        RFLT,   '8'},
        {"F2",          FREG(2),        RFLT,   '8'},
        {"F3",          FREG(3),        RFLT,   '8'},
        {"F4",          FREG(4),        RFLT,   '8'},
        {"F5",          FREG(5),        RFLT,   '8'},
        {"F6",          FREG(6),        RFLT,   '8'},
        {"F7",          FREG(7),        RFLT,   '8'},
        {0}
};

Mach m68020 =
{
        "68020",
        M68020,         /* machine type */
        m68020reglist,  /* register list */
        REGSIZE,        /* number of bytes in reg set */
        FPREGSIZE,      /* number of bytes in fp reg set */
        "PC",
        "A7",
        0,              /* link register */
        "a6base",       /* static base register name */
        0,              /* value */
        0x2000,         /* page size */
        0x80000000ULL,  /* kernel base */
        0x80000000ULL,  /* kernel text mask */
        0x7FFFFFFFULL,  /* user stack top */
        2,              /* quantization of pc */
        4,              /* szaddr */
        4,              /* szreg */
        4,              /* szfloat */
        8,              /* szdouble */
};