I'm using a PIC 16F876's SSP module to realize SPI communication.  I use
the following code to initialize all the registers (I think)

;  Initialize SPI registers

SPI Initial
        bcf     TRISC, 5                        ; Enable SDO
        bcf     TRISC, 3                        ; SCK in Master mode
        bsf     SSPCON, SSPEN   ; enable synchronous serial port
        bsf     SSPCON, CKP             ; SCK will idle high
        bcf     SSPCON, SSPM3   ; last 4 bits of SSPCON clear for SPI master mode with
SCK = Fosc / 4
        bcf     SSPCON, SSPM2
        bcf     SSPCON, SSPM1
        bcf     SSPCON, SSPM0
        bcf     SSPCON, WCOL
        bcf     SSPCON, SSPOV
        bsf     SSPSTAT, SMP    ; input data sampled at end of output line
        bsf     SSPSTST, CKE            ; CPK = 1 and data transmitted on falling edge of SCK
        retrun

Now to perform a write to the SPI bus is all I have to do is this? (where
txdata is the 8 bit word I want to write)

bcf             status, rp0     ; specify Bank0
movf            txdata, w       ; w reg holds contents of txdata
movwf           sspbuf          ; new data to xmit

I know it can't be that simple