CK_DISABLE
tmp &= ~CK_DISABLE;
tmp |= CK_DISABLE;
if (!(rst & RST_REG) && !(clk & CK_DISABLE))
tmp |= CK_DISABLE;
tmp &= ~CK_DISABLE;
if (!(clk & CK_DISABLE) && (0x20100 <= pc_c))
tmp |= CK_DISABLE;
tmp &= ~CK_DISABLE;
if (!(rst & RST_REG) && !(clk & CK_DISABLE))