I have a snippet of code here which is from a Parallax app note
on interfacing a PIC to a standard character LCD module.  It is very
sparsely commented, and basically I was wondering if someone could help
me figure out how it works.  Here's the code:

                mov     temp2,#00110000b
                                      ;Initialize LCD: set 8-bit, 1-line
                                      ;operation

                call    blip_E
                mov     temp2,#00001110b
                call    blip_E
                mov     temp2,#00000110b
                call    blip_E

In case you're not familiar with this particular app note, the blip_E
routine basically just sends the data in temp2 to the LCD.  The reason
its in its own routine is that blip_E first waits until the LCD is not
busy before blipping the Enable line (hence the name, blip_E).

Anyway, according the that lone comment, this code sets the LCD to
8-bit, 1 line operation.  Can someone explain to me what each of
those three instructions which are being sent to the LCD are doing?
I'm actually working with a 2-line LCD, and I therefore want to know
which of those 3 instructions is setting the LCD to singe-line mode, so
I can change it to 2-line mode.  Also, any pointers to a good reference
book/article on controlling LCDs -- one that might have all the control
instructions such as the above 3 listed in it -- would be appreciated.

Thanks for any help.

-mike