In C.

Peter

---

void lcd_byte(uchar b)
{
        LCD_PORT = b;   // lcd D4..7 are D4..7 of port, send MSnybbl 1st

        LCD_E=1;
        DELAY1USEC;
        LCD_E=0;

        DELAY4USEC;

        LCD_PORT = (b << 4) & 0xF0;
        LCD_E=1;
        DELAY1USEC;
        LCD_E=0;

        return;
}

This is an almost verbatim quote from code that runs here just fine (and
has for ~9 years).

Peter

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