C++ (Cpp) SET_FLAGS_OSZAPC_SUB_16示例

示例#1

文件： arith16.cpp 项目： hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::CMPXCHG_EwGwM(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 4
  Bit16u op1_16, op2_16, diff_16;

  BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

  op1_16 = read_RMW_virtual_word(i->seg(), RMAddr(i));
  diff_16 = AX - op1_16;
  SET_FLAGS_OSZAPC_SUB_16(AX, op1_16, diff_16);

  if (diff_16 == 0) {  // if accumulator == dest
    // dest <-- src
    op2_16 = BX_READ_16BIT_REG(i->nnn());
    write_RMW_virtual_word(op2_16);
  }
  else {
    // accumulator <-- dest
    AX = op1_16;
  }
#else
  BX_INFO(("CMPXCHG_EwGw: not supported for cpu-level <= 3"));
  UndefinedOpcode(i);
#endif
}

示例#2

文件： arith16.cpp 项目： hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::CMP_EwIwR(bxInstruction_c *i)
{
  Bit16u op1_16, op2_16 = i->Iw(), diff_16;

  op1_16 = BX_READ_16BIT_REG(i->rm());
  diff_16 = op1_16 - op2_16;
  SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);
}

示例#3

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::NEG_EwR(bxInstruction_c *i)
{
    Bit32u op1_16 = BX_READ_16BIT_REG(i->rm());
    op1_16 = 0 - (Bit32s)(Bit16s)(op1_16);
    BX_WRITE_16BIT_REG(i->rm(), op1_16);

    SET_FLAGS_OSZAPC_SUB_16(0, 0 - op1_16, op1_16);

    BX_NEXT_INSTR(i);
}

示例#4

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::CMP_EwIwR(bxInstruction_c *i)
{
    Bit32u op1_16 = BX_READ_16BIT_REG(i->rm());
    Bit32u op2_16 = i->Iw();
    Bit32u diff_16 = op1_16 - op2_16;

    SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);

    BX_NEXT_INSTR(i);
}

示例#5

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::CMP_AXIw(bxInstruction_c *i)
{
    Bit32u op1_16 = AX;
    Bit32u op2_16 = i->Iw();
    Bit32u diff_16 = op1_16 - op2_16;

    SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);

    BX_NEXT_INSTR(i);
}

示例#6

文件： arith16.cpp 项目： hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::CMP_EwIwM(bxInstruction_c *i)
{
  Bit16u op1_16, op2_16 = i->Iw(), diff_16;

  BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

  op1_16 = read_virtual_word(i->seg(), RMAddr(i));
  diff_16 = op1_16 - op2_16;
  SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);
}

示例#7

文件： arith16.cpp 项目： hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::CMP_AXIw(bxInstruction_c *i)
{
  Bit16u op1_16, op2_16, diff_16;

  op1_16 = AX;
  op2_16 = i->Iw();
  diff_16 = op1_16 - op2_16;

  SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);
}

示例#8

文件： arith16.cpp 项目： hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::SUB_GwEwR(bxInstruction_c *i)
{
  Bit16u op1_16, op2_16, diff_16;

  op1_16 = BX_READ_16BIT_REG(i->nnn());
  op2_16 = BX_READ_16BIT_REG(i->rm());
  diff_16 = op1_16 - op2_16;
  BX_WRITE_16BIT_REG(i->nnn(), diff_16);

  SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);
}

示例#9

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::NEG_EwM(bxInstruction_c *i)
{
    bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

    Bit32u op1_16 = read_RMW_virtual_word(i->seg(), eaddr);
    op1_16 = 0 - (Bit32s)(Bit16s)(op1_16);
    write_RMW_virtual_word(op1_16);

    SET_FLAGS_OSZAPC_SUB_16(0, 0 - op1_16, op1_16);

    BX_NEXT_INSTR(i);
}

示例#10

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::CMP_EwIwM(bxInstruction_c *i)
{
    bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

    Bit32u op1_16 = read_virtual_word(i->seg(), eaddr);
    Bit32u op2_16 = i->Iw();
    Bit32u diff_16 = op1_16 - op2_16;

    SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);

    BX_NEXT_INSTR(i);
}

示例#11

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SUB_GwEwR(bxInstruction_c *i)
{
    Bit32u op1_16 = BX_READ_16BIT_REG(i->nnn());
    Bit32u op2_16 = BX_READ_16BIT_REG(i->rm());
    Bit32u diff_16 = op1_16 - op2_16;

    BX_WRITE_16BIT_REG(i->nnn(), diff_16);

    SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);

    BX_NEXT_INSTR(i);
}

示例#12

文件： arith16.cpp 项目： hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::SUB_GwEwM(bxInstruction_c *i)
{
  Bit16u op1_16, op2_16, diff_16;

  BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

  op1_16 = BX_READ_16BIT_REG(i->nnn());
  op2_16 = read_virtual_word(i->seg(), RMAddr(i));
  diff_16 = op1_16 - op2_16;
  BX_WRITE_16BIT_REG(i->nnn(), diff_16);

  SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);
}

示例#13

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::SUB_EwGwM(bxInstruction_c *i)
{
    bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

    Bit32u op1_16 = read_RMW_virtual_word(i->seg(), eaddr);
    Bit32u op2_16 = BX_READ_16BIT_REG(i->nnn());
    Bit32u diff_16 = op1_16 - op2_16;

    write_RMW_virtual_word(diff_16);

    SET_FLAGS_OSZAPC_SUB_16(op1_16, op2_16, diff_16);

    BX_NEXT_INSTR(i);
}

示例#14

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::CMPXCHG_EwGwR(bxInstruction_c *i)
{
    Bit16u op1_16 = BX_READ_16BIT_REG(i->rm());
    Bit16u diff_16 = AX - op1_16;

    SET_FLAGS_OSZAPC_SUB_16(AX, op1_16, diff_16);

    if (diff_16 == 0) {  // if accumulator == dest
        // dest <-- src
        BX_WRITE_16BIT_REG(i->rm(), BX_READ_16BIT_REG(i->nnn()));
    }
    else {
        // accumulator <-- dest
        AX = op1_16;
    }

    BX_NEXT_INSTR(i);
}

示例#15

文件： arith16.cpp 项目： iver6/BA

BX_INSF_TYPE BX_CPP_AttrRegparmN(1) BX_CPU_C::CMPXCHG_EwGwM(bxInstruction_c *i)
{
    bx_address eaddr = BX_CPU_CALL_METHODR(i->ResolveModrm, (i));

    Bit16u op1_16 = read_RMW_virtual_word(i->seg(), eaddr);
    Bit16u diff_16 = AX - op1_16;

    SET_FLAGS_OSZAPC_SUB_16(AX, op1_16, diff_16);

    if (diff_16 == 0) {  // if accumulator == dest
        // dest <-- src
        write_RMW_virtual_word(BX_READ_16BIT_REG(i->nnn()));
    }
    else {
        // accumulator <-- dest
        AX = op1_16;
    }

    BX_NEXT_INSTR(i);
}

示例#16

文件： arith16.cpp 项目： hack477/bochs4wii

void BX_CPP_AttrRegparmN(1) BX_CPU_C::CMPXCHG_EwGwR(bxInstruction_c *i)
{
#if BX_CPU_LEVEL >= 4
  Bit16u op1_16, op2_16, diff_16;

  op1_16 = BX_READ_16BIT_REG(i->rm());
  diff_16 = AX - op1_16;
  SET_FLAGS_OSZAPC_SUB_16(AX, op1_16, diff_16);

  if (diff_16 == 0) {  // if accumulator == dest
    // dest <-- src
    op2_16 = BX_READ_16BIT_REG(i->nnn());
    BX_WRITE_16BIT_REG(i->rm(), op2_16);
  }
  else {
    // accumulator <-- dest
    AX = op1_16;
  }
#else
  BX_INFO(("CMPXCHG_EwGw: not supported for cpu-level <= 3"));
  UndefinedOpcode(i);
#endif
}