op.c

qemu虚拟机代码

/*
   SPARC micro operations

   Copyright (C) 2003 Thomas M. Ogrisegg <[e-mail]>

   This library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with this library; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#include "exec.h"

 /*XXX*/
#define REGNAME g0
#define REG (env->gregs[0])
#include "op_template.h"
#define REGNAME g1
#define REG (env->gregs[1])
#include "op_template.h"
#define REGNAME g2
#define REG (env->gregs[2])
#include "op_template.h"
#define REGNAME g3
#define REG (env->gregs[3])
#include "op_template.h"
#define REGNAME g4
#define REG (env->gregs[4])
#include "op_template.h"
#define REGNAME g5
#define REG (env->gregs[5])
#include "op_template.h"
#define REGNAME g6
#define REG (env->gregs[6])
#include "op_template.h"
#define REGNAME g7
#define REG (env->gregs[7])
#include "op_template.h"
#define REGNAME i0
#define REG (REGWPTR[16])
#include "op_template.h"
#define REGNAME i1
#define REG (REGWPTR[17])
#include "op_template.h"
#define REGNAME i2
#define REG (REGWPTR[18])
#include "op_template.h"
#define REGNAME i3
#define REG (REGWPTR[19])
#include "op_template.h"
#define REGNAME i4
#define REG (REGWPTR[20])
#include "op_template.h"
#define REGNAME i5
#define REG (REGWPTR[21])
#include "op_template.h"
#define REGNAME i6
#define REG (REGWPTR[22])
#include "op_template.h"
#define REGNAME i7
#define REG (REGWPTR[23])
#include "op_template.h"
#define REGNAME l0
#define REG (REGWPTR[8])
#include "op_template.h"
#define REGNAME l1
#define REG (REGWPTR[9])
#include "op_template.h"
#define REGNAME l2
#define REG (REGWPTR[10])
#include "op_template.h"
#define REGNAME l3
#define REG (REGWPTR[11])
#include "op_template.h"
#define REGNAME l4
#define REG (REGWPTR[12])
#include "op_template.h"
#define REGNAME l5
#define REG (REGWPTR[13])
#include "op_template.h"
#define REGNAME l6
#define REG (REGWPTR[14])
#include "op_template.h"
#define REGNAME l7
#define REG (REGWPTR[15])
#include "op_template.h"
#define REGNAME o0
#define REG (REGWPTR[0])
#include "op_template.h"
#define REGNAME o1
#define REG (REGWPTR[1])
#include "op_template.h"
#define REGNAME o2
#define REG (REGWPTR[2])
#include "op_template.h"
#define REGNAME o3
#define REG (REGWPTR[3])
#include "op_template.h"
#define REGNAME o4
#define REG (REGWPTR[4])
#include "op_template.h"
#define REGNAME o5
#define REG (REGWPTR[5])
#include "op_template.h"
#define REGNAME o6
#define REG (REGWPTR[6])
#include "op_template.h"
#define REGNAME o7
#define REG (REGWPTR[7])
#include "op_template.h"

#define REGNAME f0
#define REG (env->fpr[0])
#include "fop_template.h"
#define REGNAME f1
#define REG (env->fpr[1])
#include "fop_template.h"
#define REGNAME f2
#define REG (env->fpr[2])
#include "fop_template.h"
#define REGNAME f3
#define REG (env->fpr[3])
#include "fop_template.h"
#define REGNAME f4
#define REG (env->fpr[4])
#include "fop_template.h"
#define REGNAME f5
#define REG (env->fpr[5])
#include "fop_template.h"
#define REGNAME f6
#define REG (env->fpr[6])
#include "fop_template.h"
#define REGNAME f7
#define REG (env->fpr[7])
#include "fop_template.h"
#define REGNAME f8
#define REG (env->fpr[8])
#include "fop_template.h"
#define REGNAME f9
#define REG (env->fpr[9])
#include "fop_template.h"
#define REGNAME f10
#define REG (env->fpr[10])
#include "fop_template.h"
#define REGNAME f11
#define REG (env->fpr[11])
#include "fop_template.h"
#define REGNAME f12
#define REG (env->fpr[12])
#include "fop_template.h"
#define REGNAME f13
#define REG (env->fpr[13])
#include "fop_template.h"
#define REGNAME f14
#define REG (env->fpr[14])
#include "fop_template.h"
#define REGNAME f15
#define REG (env->fpr[15])
#include "fop_template.h"
#define REGNAME f16
#define REG (env->fpr[16])
#include "fop_template.h"
#define REGNAME f17
#define REG (env->fpr[17])
#include "fop_template.h"
#define REGNAME f18
#define REG (env->fpr[18])
#include "fop_template.h"
#define REGNAME f19
#define REG (env->fpr[19])
#include "fop_template.h"
#define REGNAME f20
#define REG (env->fpr[20])
#include "fop_template.h"
#define REGNAME f21
#define REG (env->fpr[21])
#include "fop_template.h"
#define REGNAME f22
#define REG (env->fpr[22])
#include "fop_template.h"
#define REGNAME f23
#define REG (env->fpr[23])
#include "fop_template.h"
#define REGNAME f24
#define REG (env->fpr[24])
#include "fop_template.h"
#define REGNAME f25
#define REG (env->fpr[25])
#include "fop_template.h"
#define REGNAME f26
#define REG (env->fpr[26])
#include "fop_template.h"
#define REGNAME f27
#define REG (env->fpr[27])
#include "fop_template.h"
#define REGNAME f28
#define REG (env->fpr[28])
#include "fop_template.h"
#define REGNAME f29
#define REG (env->fpr[29])
#include "fop_template.h"
#define REGNAME f30
#define REG (env->fpr[30])
#include "fop_template.h"
#define REGNAME f31
#define REG (env->fpr[31])
#include "fop_template.h"

#ifdef TARGET_SPARC64
#define REGNAME f32
#define REG (env->fpr[32])
#include "fop_template.h"
#define REGNAME f34
#define REG (env->fpr[34])
#include "fop_template.h"
#define REGNAME f36
#define REG (env->fpr[36])
#include "fop_template.h"
#define REGNAME f38
#define REG (env->fpr[38])
#include "fop_template.h"
#define REGNAME f40
#define REG (env->fpr[40])
#include "fop_template.h"
#define REGNAME f42
#define REG (env->fpr[42])
#include "fop_template.h"
#define REGNAME f44
#define REG (env->fpr[44])
#include "fop_template.h"
#define REGNAME f46
#define REG (env->fpr[46])
#include "fop_template.h"
#define REGNAME f48
#define REG (env->fpr[47])
#include "fop_template.h"
#define REGNAME f50
#define REG (env->fpr[50])
#include "fop_template.h"
#define REGNAME f52
#define REG (env->fpr[52])
#include "fop_template.h"
#define REGNAME f54
#define REG (env->fpr[54])
#include "fop_template.h"
#define REGNAME f56
#define REG (env->fpr[56])
#include "fop_template.h"
#define REGNAME f58
#define REG (env->fpr[58])
#include "fop_template.h"
#define REGNAME f60
#define REG (env->fpr[60])
#include "fop_template.h"
#define REGNAME f62
#define REG (env->fpr[62])
#include "fop_template.h"
#endif

#ifdef TARGET_SPARC64
#ifdef WORDS_BIGENDIAN
typedef union UREG64 {
    struct { uint16_t v3, v2, v1, v0; } w;
    struct { uint32_t v1, v0; } l;
    uint64_t q;
} UREG64;
#else
typedef union UREG64 {
    struct { uint16_t v0, v1, v2, v3; } w;
    struct { uint32_t v0, v1; } l;
    uint64_t q;
} UREG64;
#endif

#define PARAMQ1 \
({\
    UREG64 __p;\
    __p.l.v1 = PARAM1;\
    __p.l.v0 = PARAM2;\
    __p.q;\
}) 

void OPPROTO op_movq_T0_im64(void)
{
    T0 = PARAMQ1;
}

void OPPROTO op_movq_T1_im64(void)
{
    T1 = PARAMQ1;
}

#define XFLAG_SET(x) ((env->xcc&x)?1:0)

#else
#define EIP (env->pc)
#endif

#define FLAG_SET(x) ((env->psr&x)?1:0)

void OPPROTO op_movl_T0_0(void)
{
    T0 = 0;
}

void OPPROTO op_movl_T0_im(void)
{
    T0 = (uint32_t)PARAM1;
}

void OPPROTO op_movl_T1_im(void)
{
    T1 = (uint32_t)PARAM1;
}

void OPPROTO op_movl_T2_im(void)
{
    T2 = (uint32_t)PARAM1;
}

void OPPROTO op_movl_T0_sim(void)
{
    T0 = (int32_t)PARAM1;
}

void OPPROTO op_movl_T1_sim(void)
{
    T1 = (int32_t)PARAM1;
}

void OPPROTO op_movl_T2_sim(void)
{
    T2 = (int32_t)PARAM1;
}

void OPPROTO op_movl_T0_env(void)
{
    T0 = *(uint32_t *)((char *)env + PARAM1);
}

void OPPROTO op_movl_env_T0(void)
{
    *(uint32_t *)((char *)env + PARAM1) = T0;
}

void OPPROTO op_movtl_T0_env(void)
{
    T0 = *(target_ulong *)((char *)env + PARAM1);
}

void OPPROTO op_movtl_env_T0(void)
{
    *(target_ulong *)((char *)env + PARAM1) = T0;
}

void OPPROTO op_add_T1_T0(void)
{
    T0 += T1;
}

void OPPROTO op_add_T1_T0_cc(void)
{
    target_ulong src1;

    src1 = T0;
    T0 += T1;
    env->psr = 0;
#ifdef TARGET_SPARC64
    if (!(T0 & 0xffffffff))
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if ((T0 & 0xffffffff) < (src1 & 0xffffffff))
	env->psr |= PSR_CARRY;
    if ((((src1 & 0xffffffff) ^ (T1 & 0xffffffff) ^ -1) &
	 ((src1 & 0xffffffff) ^ (T0 & 0xffffffff))) & (1 << 31))
	env->psr |= PSR_OVF;

    env->xcc = 0;
    if (!T0)
	env->xcc |= PSR_ZERO;
    if ((int64_t) T0 < 0)
	env->xcc |= PSR_NEG;
    if (T0 < src1)
	env->xcc |= PSR_CARRY;
    if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1ULL << 63))
	env->xcc |= PSR_OVF;
#else
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if (T0 < src1)
	env->psr |= PSR_CARRY;
    if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
	env->psr |= PSR_OVF;
#endif
    FORCE_RET();
}

void OPPROTO op_addx_T1_T0(void)
{
    T0 += T1 + FLAG_SET(PSR_CARRY);
}

void OPPROTO op_addx_T1_T0_cc(void)
{
    target_ulong src1;
    src1 = T0;
    if (FLAG_SET(PSR_CARRY))
    {
      T0 += T1 + 1;
      env->psr = 0;
#ifdef TARGET_SPARC64
      if ((T0 & 0xffffffff) <= (src1 & 0xffffffff))
        env->psr |= PSR_CARRY;
      env->xcc = 0;
      if (T0 <= src1)
        env->xcc |= PSR_CARRY;
#else
      if (T0 <= src1)
        env->psr |= PSR_CARRY;
#endif
    }
    else
    {
      T0 += T1;
      env->psr = 0;
#ifdef TARGET_SPARC64
      if ((T0 & 0xffffffff) < (src1 & 0xffffffff))
        env->psr |= PSR_CARRY;
      env->xcc = 0;
      if (T0 < src1)
        env->xcc |= PSR_CARRY;
#else
      if (T0 < src1)
        env->psr |= PSR_CARRY;
#endif
    }
#ifdef TARGET_SPARC64
    if (!(T0 & 0xffffffff))
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if ((((src1 & 0xffffffff) ^ (T1 & 0xffffffff) ^ -1) &
	 ((src1 & 0xffffffff) ^ (T0 & 0xffffffff))) & (1 << 31))
	env->psr |= PSR_OVF;

    if (!T0)
	env->xcc |= PSR_ZERO;
    if ((int64_t) T0 < 0)
	env->xcc |= PSR_NEG;
    if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1ULL << 63))
	env->xcc |= PSR_OVF;
#else
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
	env->psr |= PSR_OVF;
#endif
    FORCE_RET();
}

void OPPROTO op_sub_T1_T0(void)
{
    T0 -= T1;
}

void OPPROTO op_sub_T1_T0_cc(void)
{
    target_ulong src1;

    src1 = T0;
    T0 -= T1;
    env->psr = 0;
#ifdef TARGET_SPARC64
    if (!(T0 & 0xffffffff))
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if ((src1 & 0xffffffff) < (T1 & 0xffffffff))
	env->psr |= PSR_CARRY;
    if ((((src1 & 0xffffffff) ^ (T1 & 0xffffffff)) &
	 ((src1 & 0xffffffff) ^ (T0 & 0xffffffff))) & (1 << 31))
	env->psr |= PSR_OVF;

    env->xcc = 0;
    if (!T0)
	env->xcc |= PSR_ZERO;
    if ((int64_t) T0 < 0)
	env->xcc |= PSR_NEG;
    if (src1 < T1)
	env->xcc |= PSR_CARRY;
    if (((src1 ^ T1) & (src1 ^ T0)) & (1ULL << 63))
	env->xcc |= PSR_OVF;
#else
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if (src1 < T1)
	env->psr |= PSR_CARRY;
    if (((src1 ^ T1) & (src1 ^ T0)) & (1 << 31))
	env->psr |= PSR_OVF;
#endif
    FORCE_RET();
}

void OPPROTO op_subx_T1_T0(void)
{
    T0 -= T1 + FLAG_SET(PSR_CARRY);
}

void OPPROTO op_subx_T1_T0_cc(void)
{
    target_ulong src1;
    src1 = T0;
    if (FLAG_SET(PSR_CARRY))
    {
      T0 -= T1 + 1;
      env->psr = 0;
#ifdef TARGET_SPARC64
      if ((src1 & 0xffffffff) <= (T1 & 0xffffffff))
        env->psr |= PSR_CARRY;
      env->xcc = 0;
      if (src1 <= T1)
        env->xcc |= PSR_CARRY;
#else
      if (src1 <= T1)
        env->psr |= PSR_CARRY;
#endif
    }
    else
    {
      T0 -= T1;
      env->psr = 0;
#ifdef TARGET_SPARC64
      if ((src1 & 0xffffffff) < (T1 & 0xffffffff))
        env->psr |= PSR_CARRY;
      env->xcc = 0;
      if (src1 < T1)
        env->xcc |= PSR_CARRY;
#else
      if (src1 < T1)
        env->psr |= PSR_CARRY;
#endif
    }
#ifdef TARGET_SPARC64
    if (!(T0 & 0xffffffff))
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if ((((src1 & 0xffffffff) ^ (T1 & 0xffffffff)) &
	 ((src1 & 0xffffffff) ^ (T0 & 0xffffffff))) & (1 << 31))
	env->psr |= PSR_OVF;

    if (!T0)
	env->xcc |= PSR_ZERO;
    if ((int64_t) T0 < 0)
	env->xcc |= PSR_NEG;
    if (((src1 ^ T1) & (src1 ^ T0)) & (1ULL << 63))
	env->xcc |= PSR_OVF;
#else
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if (((src1 ^ T1) & (src1 ^ T0)) & (1 << 31))
	env->psr |= PSR_OVF;
#endif
    FORCE_RET();
}

void OPPROTO op_and_T1_T0(void)
{
    T0 &= T1;
}

void OPPROTO op_or_T1_T0(void)
{
    T0 |= T1;
}

void OPPROTO op_xor_T1_T0(void)
{
    T0 ^= T1;
}

void OPPROTO op_andn_T1_T0(void)
{
    T0 &= ~T1;
}

void OPPROTO op_orn_T1_T0(void)
{
    T0 |= ~T1;
}

void OPPROTO op_xnor_T1_T0(void)
{
    T0 ^= ~T1;
}

void OPPROTO op_umul_T1_T0(void)
{
    uint64_t res;
    res = (uint64_t) T0 * (uint64_t) T1;
#ifdef TARGET_SPARC64
    T0 = res;
#else
    T0 = res & 0xffffffff;
#endif
    env->y = res >> 32;
}

void OPPROTO op_smul_T1_T0(void)
{
    uint64_t res;
    res = (int64_t) ((int32_t) T0) * (int64_t) ((int32_t) T1);
#ifdef TARGET_SPARC64
    T0 = res;
#else
    T0 = res & 0xffffffff;
#endif
    env->y = res >> 32;
}

void OPPROTO op_mulscc_T1_T0(void)
{
    unsigned int b1, N, V, b2;
    target_ulong src1;

    N = FLAG_SET(PSR_NEG);
    V = FLAG_SET(PSR_OVF);
    b1 = N ^ V;
    b2 = T0 & 1;
    T0 = (b1 << 31) | (T0 >> 1);
    if (!(env->y & 1))
        T1 = 0;
    /* do addition and update flags */
    src1 = T0;
    T0 += T1;
    env->psr = 0;
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if (T0 < src1)
	env->psr |= PSR_CARRY;
    if (((src1 ^ T1 ^ -1) & (src1 ^ T0)) & (1 << 31))
	env->psr |= PSR_OVF;
    env->y = (b2 << 31) | (env->y >> 1);
    FORCE_RET();
}

void OPPROTO op_udiv_T1_T0(void)
{
    uint64_t x0;
    uint32_t x1;

    x0 = T0 | ((uint64_t) (env->y) << 32);
    x1 = T1;
    x0 = x0 / x1;
    if (x0 > 0xffffffff) {
	T0 = 0xffffffff;
	T1 = 1;
    } else {
	T0 = x0;
	T1 = 0;
    }
    FORCE_RET();
}

void OPPROTO op_sdiv_T1_T0(void)
{
    int64_t x0;
    int32_t x1;

    x0 = T0 | ((int64_t) (env->y) << 32);
    x1 = T1;
    x0 = x0 / x1;
    if ((int32_t) x0 != x0) {
	T0 = x0 < 0? 0x80000000: 0x7fffffff;
	T1 = 1;
    } else {
	T0 = x0;
	T1 = 0;
    }
    FORCE_RET();
}

void OPPROTO op_div_cc(void)
{
    env->psr = 0;
#ifdef TARGET_SPARC64
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if (T1)
	env->psr |= PSR_OVF;

    env->xcc = 0;
    if (!T0)
	env->xcc |= PSR_ZERO;
    if ((int64_t) T0 < 0)
	env->xcc |= PSR_NEG;
#else
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
    if (T1)
	env->psr |= PSR_OVF;
#endif
    FORCE_RET();
}

#ifdef TARGET_SPARC64
void OPPROTO op_mulx_T1_T0(void)
{
    T0 *= T1;
    FORCE_RET();
}

void OPPROTO op_udivx_T1_T0(void)
{
    T0 /= T1;
    FORCE_RET();
}

void OPPROTO op_sdivx_T1_T0(void)
{
    if (T0 == INT64_MIN && T1 == -1)
	T0 = INT64_MIN;
    else
	T0 /= (target_long) T1;
    FORCE_RET();
}
#endif

void OPPROTO op_logic_T0_cc(void)
{
    env->psr = 0;
#ifdef TARGET_SPARC64
    if (!(T0 & 0xffffffff))
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;

    env->xcc = 0;
    if (!T0)
	env->xcc |= PSR_ZERO;
    if ((int64_t) T0 < 0)
	env->xcc |= PSR_NEG;
#else
    if (!T0)
	env->psr |= PSR_ZERO;
    if ((int32_t) T0 < 0)
	env->psr |= PSR_NEG;
#endif
    FORCE_RET();
}

void OPPROTO op_sll(void)
{
    T0 <<= T1;
}

#ifdef TARGET_SPARC64
void OPPROTO op_srl(void)
{
    T0 = (T0 & 0xffffffff) >> T1;
}

void OPPROTO op_srlx(void)
{
    T0 >>= T1;
}

void OPPROTO op_sra(void)
{
    T0 = ((int32_t) (T0 & 0xffffffff)) >> T1;
}

void OPPROTO op_srax(void)
{
    T0 = ((int64_t) T0) >> T1;
}
#else
void OPPROTO op_srl(void)
{
    T0 >>= T1;
}

void OPPROTO op_sra(void)
{