Serial communication PC with Microcontroller

[henry]

Hi...
I've problem with sending data from uc to PC...
for uc I use assembler language and AT89S52..
I already have the syntax for sending data...but..it doesn't work...
here is the syntax:

send:
mov sbuf,a
jnb T1,$
clr T1
ret

I've plan to combine this communication in delphi language...

can anybody help me??