translate.c.svn-base

我们自己开发的一个OSEK操作系统！不知道可不可以？

    gen_op_store_T0_gpr(rD(ctx->opcode));
}
/* mulli */
GEN_HANDLER(mulli, 0x07, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    gen_op_load_gpr_T0(rA(ctx->opcode));
    gen_op_mulli(SIMM(ctx->opcode));
    gen_op_store_T0_gpr(rD(ctx->opcode));
}
/* subfic */
GEN_HANDLER(subfic, 0x08, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    gen_op_load_gpr_T0(rA(ctx->opcode));
#if defined(TARGET_PPC64)
    if (ctx->sf_mode)
        gen_op_subfic_64(SIMM(ctx->opcode));
    else
#endif
        gen_op_subfic(SIMM(ctx->opcode));
    gen_op_store_T0_gpr(rD(ctx->opcode));
}

#if defined(TARGET_PPC64)
/* mulhd  mulhd.                   */
GEN_INT_ARITHN (mulhd,  0x1F, 0x09, 0x02, PPC_64B);
/* mulhdu mulhdu.                  */
GEN_INT_ARITHN (mulhdu, 0x1F, 0x09, 0x00, PPC_64B);
/* mulld  mulld.  mulldo  mulldo.  */
GEN_INT_ARITH2 (mulld,  0x1F, 0x09, 0x07, PPC_64B);
/* divd   divd.   divdo   divdo.   */
GEN_INT_ARITH2 (divd,   0x1F, 0x09, 0x0F, PPC_64B);
/* divdu  divdu.  divduo  divduo.  */
GEN_INT_ARITH2 (divdu,  0x1F, 0x09, 0x0E, PPC_64B);
#endif

/***                           Integer comparison                          ***/
#if defined(TARGET_PPC64)
#define GEN_CMP(name, opc, type)                                              \
GEN_HANDLER(name, 0x1F, 0x00, opc, 0x00400000, type)                          \
{                                                                             \
    gen_op_load_gpr_T0(rA(ctx->opcode));                                      \
    gen_op_load_gpr_T1(rB(ctx->opcode));                                      \
    if (ctx->sf_mode && (ctx->opcode & 0x00200000))                           \
        gen_op_##name##_64();                                                 \
    else                                                                      \
        gen_op_##name();                                                      \
    gen_op_store_T0_crf(crfD(ctx->opcode));                                   \
}
#else
#define GEN_CMP(name, opc, type)                                              \
GEN_HANDLER(name, 0x1F, 0x00, opc, 0x00400000, type)                          \
{                                                                             \
    gen_op_load_gpr_T0(rA(ctx->opcode));                                      \
    gen_op_load_gpr_T1(rB(ctx->opcode));                                      \
    gen_op_##name();                                                          \
    gen_op_store_T0_crf(crfD(ctx->opcode));                                   \
}
#endif

/* cmp */
GEN_CMP(cmp, 0x00, PPC_INTEGER);
/* cmpi */
GEN_HANDLER(cmpi, 0x0B, 0xFF, 0xFF, 0x00400000, PPC_INTEGER)
{
    gen_op_load_gpr_T0(rA(ctx->opcode));
#if defined(TARGET_PPC64)
    if (ctx->sf_mode && (ctx->opcode & 0x00200000))
        gen_op_cmpi_64(SIMM(ctx->opcode));
    else
#endif
        gen_op_cmpi(SIMM(ctx->opcode));
    gen_op_store_T0_crf(crfD(ctx->opcode));
}
/* cmpl */
GEN_CMP(cmpl, 0x01, PPC_INTEGER);
/* cmpli */
GEN_HANDLER(cmpli, 0x0A, 0xFF, 0xFF, 0x00400000, PPC_INTEGER)
{
    gen_op_load_gpr_T0(rA(ctx->opcode));
#if defined(TARGET_PPC64)
    if (ctx->sf_mode && (ctx->opcode & 0x00200000))
        gen_op_cmpli_64(UIMM(ctx->opcode));
    else
#endif
        gen_op_cmpli(UIMM(ctx->opcode));
    gen_op_store_T0_crf(crfD(ctx->opcode));
}

/* isel (PowerPC 2.03 specification) */
GEN_HANDLER(isel, 0x1F, 0x0F, 0x00, 0x00000001, PPC_ISEL)
{
    uint32_t bi = rC(ctx->opcode);
    uint32_t mask;

    if (rA(ctx->opcode) == 0) {
        gen_set_T0(0);
    } else {
        gen_op_load_gpr_T1(rA(ctx->opcode));
    }
    gen_op_load_gpr_T2(rB(ctx->opcode));
    mask = 1 << (3 - (bi & 0x03));
    gen_op_load_crf_T0(bi >> 2);
    gen_op_test_true(mask);
    gen_op_isel();
    gen_op_store_T0_gpr(rD(ctx->opcode));
}

/***                            Integer logical                            ***/
#define __GEN_LOGICAL2(name, opc2, opc3, type)                                \
GEN_HANDLER(name, 0x1F, opc2, opc3, 0x00000000, type)                         \
{                                                                             \
    gen_op_load_gpr_T0(rS(ctx->opcode));                                      \
    gen_op_load_gpr_T1(rB(ctx->opcode));                                      \
    gen_op_##name();                                                          \
    gen_op_store_T0_gpr(rA(ctx->opcode));                                     \
    if (unlikely(Rc(ctx->opcode) != 0))                                       \
        gen_set_Rc0(ctx);                                                     \
}
#define GEN_LOGICAL2(name, opc, type)                                         \
__GEN_LOGICAL2(name, 0x1C, opc, type)

#define GEN_LOGICAL1(name, opc, type)                                         \
GEN_HANDLER(name, 0x1F, 0x1A, opc, 0x00000000, type)                          \
{                                                                             \
    gen_op_load_gpr_T0(rS(ctx->opcode));                                      \
    gen_op_##name();                                                          \
    gen_op_store_T0_gpr(rA(ctx->opcode));                                     \
    if (unlikely(Rc(ctx->opcode) != 0))                                       \
        gen_set_Rc0(ctx);                                                     \
}

/* and & and. */
GEN_LOGICAL2(and, 0x00, PPC_INTEGER);
/* andc & andc. */
GEN_LOGICAL2(andc, 0x01, PPC_INTEGER);
/* andi. */
GEN_HANDLER2(andi_, "andi.", 0x1C, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    gen_op_load_gpr_T0(rS(ctx->opcode));
    gen_op_andi_T0(UIMM(ctx->opcode));
    gen_op_store_T0_gpr(rA(ctx->opcode));
    gen_set_Rc0(ctx);
}
/* andis. */
GEN_HANDLER2(andis_, "andis.", 0x1D, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    gen_op_load_gpr_T0(rS(ctx->opcode));
    gen_op_andi_T0(UIMM(ctx->opcode) << 16);
    gen_op_store_T0_gpr(rA(ctx->opcode));
    gen_set_Rc0(ctx);
}

/* cntlzw */
GEN_LOGICAL1(cntlzw, 0x00, PPC_INTEGER);
/* eqv & eqv. */
GEN_LOGICAL2(eqv, 0x08, PPC_INTEGER);
/* extsb & extsb. */
GEN_LOGICAL1(extsb, 0x1D, PPC_INTEGER);
/* extsh & extsh. */
GEN_LOGICAL1(extsh, 0x1C, PPC_INTEGER);
/* nand & nand. */
GEN_LOGICAL2(nand, 0x0E, PPC_INTEGER);
/* nor & nor. */
GEN_LOGICAL2(nor, 0x03, PPC_INTEGER);

/* or & or. */
GEN_HANDLER(or, 0x1F, 0x1C, 0x0D, 0x00000000, PPC_INTEGER)
{
    int rs, ra, rb;

    rs = rS(ctx->opcode);
    ra = rA(ctx->opcode);
    rb = rB(ctx->opcode);
    /* Optimisation for mr. ri case */
    if (rs != ra || rs != rb) {
        gen_op_load_gpr_T0(rs);
        if (rs != rb) {
            gen_op_load_gpr_T1(rb);
            gen_op_or();
        }
        gen_op_store_T0_gpr(ra);
        if (unlikely(Rc(ctx->opcode) != 0))
            gen_set_Rc0(ctx);
    } else if (unlikely(Rc(ctx->opcode) != 0)) {
        gen_op_load_gpr_T0(rs);
        gen_set_Rc0(ctx);		
#if defined(TARGET_PPC64)
    } else {
        switch (rs) {
        case 1:
            /* Set process priority to low */
            gen_op_store_pri(2);
            break;
        case 6:
            /* Set process priority to medium-low */
            gen_op_store_pri(3);
            break;
        case 2:
            /* Set process priority to normal */
            gen_op_store_pri(4);
            break;
#if !defined(CONFIG_USER_ONLY)
        case 31:
            if (ctx->supervisor > 0) {
                /* Set process priority to very low */
                gen_op_store_pri(1);
            }
            break;
        case 5:
            if (ctx->supervisor > 0) {
                /* Set process priority to medium-hight */
                gen_op_store_pri(5);
            }
            break;
        case 3:
            if (ctx->supervisor > 0) {
                /* Set process priority to high */
                gen_op_store_pri(6);
            }
            break;
        case 7:
            if (ctx->supervisor > 1) {
                /* Set process priority to very high */
                gen_op_store_pri(7);
            }
            break;
#endif
        default:
            /* nop */
            break;
        }
#endif
    }
}

/* orc & orc. */
GEN_LOGICAL2(orc, 0x0C, PPC_INTEGER);
/* xor & xor. */
GEN_HANDLER(xor, 0x1F, 0x1C, 0x09, 0x00000000, PPC_INTEGER)
{
    gen_op_load_gpr_T0(rS(ctx->opcode));
    /* Optimisation for "set to zero" case */
    if (rS(ctx->opcode) != rB(ctx->opcode)) {
        gen_op_load_gpr_T1(rB(ctx->opcode));
        gen_op_xor();
    } else {
        gen_op_reset_T0();
    }
    gen_op_store_T0_gpr(rA(ctx->opcode));
    if (unlikely(Rc(ctx->opcode) != 0))
        gen_set_Rc0(ctx);
}
/* ori */
GEN_HANDLER(ori, 0x18, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    target_ulong uimm = UIMM(ctx->opcode);
      
    if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) {
        /* NOP */
        /* XXX: should handle special NOPs for POWER series */
        return;
    }
	
    gen_op_load_gpr_T0(rS(ctx->opcode));
    if (likely(uimm != 0))
        gen_op_ori(uimm);
    gen_op_store_T0_gpr(rA(ctx->opcode));	
	
}
/* oris */
GEN_HANDLER(oris, 0x19, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    target_ulong uimm = UIMM(ctx->opcode);

    if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) {
        /* NOP */
        return;
    }
    gen_op_load_gpr_T0(rS(ctx->opcode));
    if (likely(uimm != 0))
        gen_op_ori(uimm << 16);
    gen_op_store_T0_gpr(rA(ctx->opcode));
}
/* xori */
GEN_HANDLER(xori, 0x1A, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    target_ulong uimm = UIMM(ctx->opcode);

    if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) {
        /* NOP */
        return;
    }
    gen_op_load_gpr_T0(rS(ctx->opcode));
    if (likely(uimm != 0))
        gen_op_xori(uimm);
    gen_op_store_T0_gpr(rA(ctx->opcode));
}

/* xoris */
GEN_HANDLER(xoris, 0x1B, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    target_ulong uimm = UIMM(ctx->opcode);

    if (rS(ctx->opcode) == rA(ctx->opcode) && uimm == 0) {
        /* NOP */
        return;
    }
    gen_op_load_gpr_T0(rS(ctx->opcode));
    if (likely(uimm != 0))
        gen_op_xori(uimm << 16);
    gen_op_store_T0_gpr(rA(ctx->opcode));
}

/* popcntb : PowerPC 2.03 specification */
GEN_HANDLER(popcntb, 0x1F, 0x03, 0x03, 0x0000F801, PPC_POPCNTB)
{
    gen_op_load_gpr_T0(rS(ctx->opcode));
#if defined(TARGET_PPC64)
    if (ctx->sf_mode)
        gen_op_popcntb_64();
    else
#endif
        gen_op_popcntb();
    gen_op_store_T0_gpr(rA(ctx->opcode));
}

#if defined(TARGET_PPC64)
/* extsw & extsw. */
GEN_LOGICAL1(extsw, 0x1E, PPC_64B);
/* cntlzd */
GEN_LOGICAL1(cntlzd, 0x01, PPC_64B);
#endif

/***                             Integer rotate                            ***/
/* rlwimi & rlwimi. */
GEN_HANDLER(rlwimi, 0x14, 0xFF, 0xFF, 0x00000000, PPC_INTEGER)
{
    target_ulong mask;
    uint32_t mb, me, sh;

    mb = MB(ctx->opcode);
    me = ME(ctx->opcode);
    sh = SH(ctx->opcode);
    if (likely(sh == 0)) {
        if (likely(mb == 0 && me == 31)) {
            gen_op_load_gpr_T0(rS(ctx->opcode));
            goto do_store;
        } else if (likely(mb == 31 && me == 0)) {
            gen_op_load_gpr_T0(rA(ctx->opcode));
            goto do_store;