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Text File  |  1990-12-09  |  271b  |  16 lines
  1.  
  2. timer:
  3.         XREF    counter_irq?
  4.         LDX     PR
  5.         PSHX
  6.         LDX     SR
  7.         PSHX
  8.         JSR     counter_irq?    ; place the name of C interrupt handler here
  9.         PULX
  10.         STX     SR
  11.         PULX
  12.         STX     PR
  13.         RTI
  14.  
  15.  
  16.