uint8_t outputByte;

                // Get first part of hexadecimal
                tok = (uint8_t)ti_GetC(ice.inPrgm);
                if (tok >= t0 && tok <= t9) {
                    outputByte = tok - t0;
                } else if (tok >= tA && tok <= tF) {
                    outputByte = tok - tA + 0x0A;
                } else {
                    return E_INVALID_ICON;
                }
                outputByte <<= 4;

                // Get second part of hexadecimal
                tok = (uint8_t)ti_GetC(ice.inPrgm);
                if (tok >= 0 && tok <= t9) {
                    outputByte |= tok - t0;
                } else if (tok >= tA && tok <= tF) {
                    outputByte |= tok - tA + 0x0A;
                } else {
                    return E_INVALID_ICON;
                }