Here goes.

I'd like to program a 16C54 and I'm not sure I'm getting it to run
correctly.  I have a lot of assumptions but I'll try to be detailed:

I wrote this just to see if I could get an output and assembled it with
SPASM:
; PIC PROJECT: "squarewave
; Written     May 28, 1998
; last revision 5/28/98

                DEVICE  PIC16C54,HS_OSC,WDT_OFF,PROTECT_OFF
                RESET   Start           ;Set reset vector to address at Start
                                        ;(PIC will jump to this when reset)

                org     8               ;Start of available RAM

count0          DS      1               ;Assign labels to registers 08h
& 09h

                org     0               ;Start of code space

                clr     Count0
                clr     Count1

Start           mov     !RA,#00000001b  ;Set data direction register for port A
                                        ;(make bit 0 an input)
                mov     !RB,#10000000b  ; make bit 7 an output
;
;
; make outpin pin hi
;
begin           mov RB, #10000000b      ;RB.7 is output pin
;       pause for a certain period of time
                clr count0
:waitloop5      djnz count0,  :waitloop5 ; waiting loop
                mov RB, #00000000b      ;rb.7 low
;       pause for a certain period of time
                clr count0
:waitloop6      djnz count0,  :waitloop6 ; waiting loop
;restart
                jmp begin       ;endless loop
;end
It appears to work okay with psim.
I programmed a PICSTART plus using MPLAB and it supposedly works.

I hooked Vdd to 5v along with /reset.
I hooked Vss to ground.
I hooked up OSC1 and OSC2 to a DIP package 4mhz crystal.

But I get no output from portB.7 (or any other)

Any advice?  Thanks in advance,

Phil Bernard