Commit 07d2c595 authored by Fabrice Bellard's avatar Fabrice Bellard
Browse files

moved eflags computation outside op.c 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4472 c046a42c-6fe2-441c-8c8c-71466251a162
parent cad3a37d

target-i386/helper.c

+79 −0
Original line number Diff line number Diff line
@@ -5239,3 +5239,82 @@ void helper_movq(uint64_t *d, uint64_t *s) 
#undef SHIFT



#endif



static int compute_all_eflags(void)

{

    return CC_SRC;

}



static int compute_c_eflags(void)

{

    return CC_SRC & CC_C;

}



CCTable cc_table[CC_OP_NB] = {

    [CC_OP_DYNAMIC] = { /* should never happen */ },



    [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },



    [CC_OP_MULB] = { compute_all_mulb, compute_c_mull },

    [CC_OP_MULW] = { compute_all_mulw, compute_c_mull },

    [CC_OP_MULL] = { compute_all_mull, compute_c_mull },



    [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },

    [CC_OP_ADDW] = { compute_all_addw, compute_c_addw  },

    [CC_OP_ADDL] = { compute_all_addl, compute_c_addl  },



    [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },

    [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw  },

    [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl  },



    [CC_OP_SUBB] = { compute_all_subb, compute_c_subb  },

    [CC_OP_SUBW] = { compute_all_subw, compute_c_subw  },

    [CC_OP_SUBL] = { compute_all_subl, compute_c_subl  },



    [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb  },

    [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw  },

    [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl  },



    [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },

    [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },

    [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },



    [CC_OP_INCB] = { compute_all_incb, compute_c_incl },

    [CC_OP_INCW] = { compute_all_incw, compute_c_incl },

    [CC_OP_INCL] = { compute_all_incl, compute_c_incl },



    [CC_OP_DECB] = { compute_all_decb, compute_c_incl },

    [CC_OP_DECW] = { compute_all_decw, compute_c_incl },

    [CC_OP_DECL] = { compute_all_decl, compute_c_incl },



    [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },

    [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },

    [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },



    [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },

    [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },

    [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },



#ifdef TARGET_X86_64

    [CC_OP_MULQ] = { compute_all_mulq, compute_c_mull },



    [CC_OP_ADDQ] = { compute_all_addq, compute_c_addq  },



    [CC_OP_ADCQ] = { compute_all_adcq, compute_c_adcq  },



    [CC_OP_SUBQ] = { compute_all_subq, compute_c_subq  },



    [CC_OP_SBBQ] = { compute_all_sbbq, compute_c_sbbq  },



    [CC_OP_LOGICQ] = { compute_all_logicq, compute_c_logicq },



    [CC_OP_INCQ] = { compute_all_incq, compute_c_incl },



    [CC_OP_DECQ] = { compute_all_decq, compute_c_incl },



    [CC_OP_SHLQ] = { compute_all_shlq, compute_c_shlq },



    [CC_OP_SARQ] = { compute_all_sarq, compute_c_sarl },

#endif

};

target-i386/helper_template.h

+217 −0
Original line number Diff line number Diff line
@@ -50,6 +50,223 @@ 
#error unhandled operand size

#endif



/* dynamic flags computation */



static int glue(compute_all_add, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_SRC;

    src2 = CC_DST - CC_SRC;

    cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_add, SUFFIX)(void)

{

    int cf;

    target_long src1;

    src1 = CC_SRC;

    cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;

    return cf;

}



static int glue(compute_all_adc, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_SRC;

    src2 = CC_DST - CC_SRC - 1;

    cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_adc, SUFFIX)(void)

{

    int cf;

    target_long src1;

    src1 = CC_SRC;

    cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;

    return cf;

}



static int glue(compute_all_sub, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_sub, SUFFIX)(void)

{

    int cf;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;

    return cf;

}



static int glue(compute_all_sbb, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC + 1;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_sbb, SUFFIX)(void)

{

    int cf;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC + 1;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;

    return cf;

}



static int glue(compute_all_logic, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = 0;

    pf = parity_table[(uint8_t)CC_DST];

    af = 0;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = 0;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_logic, SUFFIX)(void)

{

    return 0;

}



static int glue(compute_all_inc, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST - 1;

    src2 = 1;

    cf = CC_SRC;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11;

    return cf | pf | af | zf | sf | of;

}



#if DATA_BITS == 32

static int glue(compute_c_inc, SUFFIX)(void)

{

    return CC_SRC;

}

#endif



static int glue(compute_all_dec, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST + 1;

    src2 = 1;

    cf = CC_SRC;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_all_shl, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C;

    pf = parity_table[(uint8_t)CC_DST];

    af = 0; /* undefined */

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    /* of is defined if shift count == 1 */

    of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_shl, SUFFIX)(void)

{

    return (CC_SRC >> (DATA_BITS - 1)) & CC_C;

}



#if DATA_BITS == 32

static int glue(compute_c_sar, SUFFIX)(void)

{

    return CC_SRC & 1;

}

#endif



static int glue(compute_all_sar, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = CC_SRC & 1;

    pf = parity_table[(uint8_t)CC_DST];

    af = 0; /* undefined */

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    /* of is defined if shift count == 1 */

    of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



#if DATA_BITS == 32

static int glue(compute_c_mul, SUFFIX)(void)

{

    int cf;

    cf = (CC_SRC != 0);

    return cf;

}

#endif



/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and

   CF are modified and it is slower to do that. */

static int glue(compute_all_mul, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = (CC_SRC != 0);

    pf = parity_table[(uint8_t)CC_DST];

    af = 0; /* undefined */

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = cf << 11;

    return cf | pf | af | zf | sf | of;

}



/* shifts */



target_ulong glue(helper_rcl, SUFFIX)(target_ulong t0, target_ulong t1)

{

    int count, eflags;

target-i386/op.c

+0 −78
Original line number Diff line number Diff line
@@ -752,84 +752,6 @@ void OPPROTO op_salc(void) 
    EAX = (EAX & ~0xff) | ((-cf) & 0xff);

}



static int compute_all_eflags(void)

{

    return CC_SRC;

}



static int compute_c_eflags(void)

{

    return CC_SRC & CC_C;

}



CCTable cc_table[CC_OP_NB] = {

    [CC_OP_DYNAMIC] = { /* should never happen */ },



    [CC_OP_EFLAGS] = { compute_all_eflags, compute_c_eflags },



    [CC_OP_MULB] = { compute_all_mulb, compute_c_mull },

    [CC_OP_MULW] = { compute_all_mulw, compute_c_mull },

    [CC_OP_MULL] = { compute_all_mull, compute_c_mull },



    [CC_OP_ADDB] = { compute_all_addb, compute_c_addb },

    [CC_OP_ADDW] = { compute_all_addw, compute_c_addw  },

    [CC_OP_ADDL] = { compute_all_addl, compute_c_addl  },



    [CC_OP_ADCB] = { compute_all_adcb, compute_c_adcb },

    [CC_OP_ADCW] = { compute_all_adcw, compute_c_adcw  },

    [CC_OP_ADCL] = { compute_all_adcl, compute_c_adcl  },



    [CC_OP_SUBB] = { compute_all_subb, compute_c_subb  },

    [CC_OP_SUBW] = { compute_all_subw, compute_c_subw  },

    [CC_OP_SUBL] = { compute_all_subl, compute_c_subl  },



    [CC_OP_SBBB] = { compute_all_sbbb, compute_c_sbbb  },

    [CC_OP_SBBW] = { compute_all_sbbw, compute_c_sbbw  },

    [CC_OP_SBBL] = { compute_all_sbbl, compute_c_sbbl  },



    [CC_OP_LOGICB] = { compute_all_logicb, compute_c_logicb },

    [CC_OP_LOGICW] = { compute_all_logicw, compute_c_logicw },

    [CC_OP_LOGICL] = { compute_all_logicl, compute_c_logicl },



    [CC_OP_INCB] = { compute_all_incb, compute_c_incl },

    [CC_OP_INCW] = { compute_all_incw, compute_c_incl },

    [CC_OP_INCL] = { compute_all_incl, compute_c_incl },



    [CC_OP_DECB] = { compute_all_decb, compute_c_incl },

    [CC_OP_DECW] = { compute_all_decw, compute_c_incl },

    [CC_OP_DECL] = { compute_all_decl, compute_c_incl },



    [CC_OP_SHLB] = { compute_all_shlb, compute_c_shlb },

    [CC_OP_SHLW] = { compute_all_shlw, compute_c_shlw },

    [CC_OP_SHLL] = { compute_all_shll, compute_c_shll },



    [CC_OP_SARB] = { compute_all_sarb, compute_c_sarl },

    [CC_OP_SARW] = { compute_all_sarw, compute_c_sarl },

    [CC_OP_SARL] = { compute_all_sarl, compute_c_sarl },



#ifdef TARGET_X86_64

    [CC_OP_MULQ] = { compute_all_mulq, compute_c_mull },



    [CC_OP_ADDQ] = { compute_all_addq, compute_c_addq  },



    [CC_OP_ADCQ] = { compute_all_adcq, compute_c_adcq  },



    [CC_OP_SUBQ] = { compute_all_subq, compute_c_subq  },



    [CC_OP_SBBQ] = { compute_all_sbbq, compute_c_sbbq  },



    [CC_OP_LOGICQ] = { compute_all_logicq, compute_c_logicq },



    [CC_OP_INCQ] = { compute_all_incq, compute_c_incl },



    [CC_OP_DECQ] = { compute_all_decq, compute_c_incl },



    [CC_OP_SHLQ] = { compute_all_shlq, compute_c_shlq },



    [CC_OP_SARQ] = { compute_all_sarq, compute_c_sarl },

#endif

};



void OPPROTO op_fcomi_dummy(void)

{

    T0 = 0;

target-i386/ops_template.h

+0 −215
Original line number Diff line number Diff line
@@ -51,221 +51,6 @@ 
#error unhandled operand size

#endif



/* dynamic flags computation */



static int glue(compute_all_add, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_SRC;

    src2 = CC_DST - CC_SRC;

    cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_add, SUFFIX)(void)

{

    int cf;

    target_long src1;

    src1 = CC_SRC;

    cf = (DATA_TYPE)CC_DST < (DATA_TYPE)src1;

    return cf;

}



static int glue(compute_all_adc, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_SRC;

    src2 = CC_DST - CC_SRC - 1;

    cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2 ^ -1) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_adc, SUFFIX)(void)

{

    int cf;

    target_long src1;

    src1 = CC_SRC;

    cf = (DATA_TYPE)CC_DST <= (DATA_TYPE)src1;

    return cf;

}



static int glue(compute_all_sub, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_sub, SUFFIX)(void)

{

    int cf;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 < (DATA_TYPE)src2;

    return cf;

}



static int glue(compute_all_sbb, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC + 1;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = lshift((src1 ^ src2) & (src1 ^ CC_DST), 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_sbb, SUFFIX)(void)

{

    int cf;

    target_long src1, src2;

    src1 = CC_DST + CC_SRC + 1;

    src2 = CC_SRC;

    cf = (DATA_TYPE)src1 <= (DATA_TYPE)src2;

    return cf;

}



static int glue(compute_all_logic, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = 0;

    pf = parity_table[(uint8_t)CC_DST];

    af = 0;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = 0;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_logic, SUFFIX)(void)

{

    return 0;

}



static int glue(compute_all_inc, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST - 1;

    src2 = 1;

    cf = CC_SRC;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = ((CC_DST & DATA_MASK) == SIGN_MASK) << 11;

    return cf | pf | af | zf | sf | of;

}



#if DATA_BITS == 32

static int glue(compute_c_inc, SUFFIX)(void)

{

    return CC_SRC;

}

#endif



static int glue(compute_all_dec, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    target_long src1, src2;

    src1 = CC_DST + 1;

    src2 = 1;

    cf = CC_SRC;

    pf = parity_table[(uint8_t)CC_DST];

    af = (CC_DST ^ src1 ^ src2) & 0x10;

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = ((CC_DST & DATA_MASK) == ((target_ulong)SIGN_MASK - 1)) << 11;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_all_shl, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = (CC_SRC >> (DATA_BITS - 1)) & CC_C;

    pf = parity_table[(uint8_t)CC_DST];

    af = 0; /* undefined */

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    /* of is defined if shift count == 1 */

    of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



static int glue(compute_c_shl, SUFFIX)(void)

{

    return (CC_SRC >> (DATA_BITS - 1)) & CC_C;

}



#if DATA_BITS == 32

static int glue(compute_c_sar, SUFFIX)(void)

{

    return CC_SRC & 1;

}

#endif



static int glue(compute_all_sar, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = CC_SRC & 1;

    pf = parity_table[(uint8_t)CC_DST];

    af = 0; /* undefined */

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    /* of is defined if shift count == 1 */

    of = lshift(CC_SRC ^ CC_DST, 12 - DATA_BITS) & CC_O;

    return cf | pf | af | zf | sf | of;

}



#if DATA_BITS == 32

static int glue(compute_c_mul, SUFFIX)(void)

{

    int cf;

    cf = (CC_SRC != 0);

    return cf;

}

#endif



/* NOTE: we compute the flags like the P4. On olders CPUs, only OF and

   CF are modified and it is slower to do that. */

static int glue(compute_all_mul, SUFFIX)(void)

{

    int cf, pf, af, zf, sf, of;

    cf = (CC_SRC != 0);

    pf = parity_table[(uint8_t)CC_DST];

    af = 0; /* undefined */

    zf = ((DATA_TYPE)CC_DST == 0) << 6;

    sf = lshift(CC_DST, 8 - DATA_BITS) & 0x80;

    of = cf << 11;

    return cf | pf | af | zf | sf | of;

}



/* various optimized jumps cases */



void OPPROTO glue(op_jb_sub, SUFFIX)(void)