Function isHighReg

src/e9tool/e9codegen.cpp:452–461

* Return `true' for high-byte registers. */

 * Return `true' for high-byte registers.
 */
bool isHighReg(Register reg)
{
    switch (reg)
    {
        case REGISTER_AH: case REGISTER_BH: case REGISTER_CH: case REGISTER_DH:
            return true;
        default:
            return false;
    }
}

/*
 * Get a register name.