>> This would work only I need individual control of each line.  I've
>> used BSF/BCF operations to do bit-banged SPI on a 16F84 before, and
>> that worked just fine, it's hard to believe that I can't
>simply toggle
>> some lines using those commands!
>
>You can.  It sounds to me like you have not properly set up
>the TRISA register for the bits in question ...

This is what I was thinking as well, but in the PICC, I simply have:

---

TRISA = 0b00000000;

---

Hopefully I can rely on that... :/  I've also tried just simply TRISA =
0; to eliminate the possible misuse of the 0b.

And in assembly I have:

---

_BANK 1
movlw b'00000000'
movwf TRISA ^ 0x80

---

The _BANK macro is one I've used in plenty of other projects.  But just
in case, here it is:

---

_BANK macro X                           ; Switch banks
 if X == 0
  bcf STATUS, RP1                               ;
  bcf STATUS, RP0                               ; RP[1:0] = 0  ==> Bank
0
 endif
 if X == 1
  bcf STATUS, RP1                               ;
  bsf STATUS, RP0                               ; RP[1:0] = 1  ==> Bank
1
 endif
 if X == 2
  bsf STATUS, RP1                               ;
  bcf STATUS, RP0                               ; RP[1:0] = 2  ==> Bank
2
 endif
 if X == 3
  bsf STATUS, RP1                               ;
  bsf STATUS, RP0                               ; RP[1:0] = 3  ==> Bank
3
 endif
  endm

---

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