register.s90

用iAR编写的AD转换程序

SREG    =   0x3f

          MODULE pushers
          PUBLIC pushers
          RSEG   CODE:CODE
        
pushers:  push r26
          push r27
          push r30
          push r31
          in   r26,SREG
          push r26
endpushers:
          RET
          ENDMOD
          
SREG    =   0x3f  
        
          MODULE popers
          PUBLIC popers
          RSEG   CODE:CODE
          
popers:   pop  r26
          out  SREG,r26
          pop  r31
          pop  r30
          pop  r27
          pop  r26    
endpopers:
          RET
          ENDMOD   
          END