Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
08/08/10 15:49
Modified:
  08/08/10 15:49

Read: times


 
#177882 - Still a Missing Part of Scheme
Responding to: ???'s previous message
Johan:
It still appears that there is a missing part of the scheme that you describe.

You say to "Call" Send_Char().

Possibly you meant to "Jmp To" Send_Char() and perform special handling of stack.

Unless you do something like that the stack still has to unwind through to the RETI at the end of the serial interrupt routine!!

There is of course the possibility to mess around with the pushed stack contents and the SP value in one of the routines to effectively purge the extra level of stack contents but such devious manipulations were not shown in the parts of the scheme exposed so far.

Michael Karas


List of 17 messages in thread
TopicAuthorDate
Writing to SBUF in Serial Routine            01/01/70 00:00      
   Sure...            01/01/70 00:00      
   yes, but            01/01/70 00:00      
      TX inside serialint            01/01/70 00:00      
         Pardon??            01/01/70 00:00      
            Pardon accepted            01/01/70 00:00      
               Still a Missing Part of Scheme            01/01/70 00:00      
            Pardon            01/01/70 00:00      
               Will that work in 'C' ?            01/01/70 00:00      
                  Assembler if you want            01/01/70 00:00      
                     Why send_char?            01/01/70 00:00      
                        Why send_char            01/01/70 00:00      
                           You missed the point            01/01/70 00:00      
                              Call a routine from an interrupt            01/01/70 00:00      
                                 Still misunderstanding            01/01/70 00:00      
                                 misunderstandings            01/01/70 00:00      
      what happened to the OP?            01/01/70 00:00      

Back to Subject List