Silabs 8051F12x, SFR Paging and RTX51 Tiny - call USER_ROUTINE from timer interrupt function.

 Silabs 8051F12x, SFR Paging and RTX51 Tiny - call USER_ROUTINE from timer interrupt function.

//****************************************
//************* Conf_tny.A51 *************
//****************************************
...
EXTRN   CODE   (USER_ROUTINE) ;;; Inserted by me
...

USING   0               ; Registerbank 0 for following code

IF (TIMESHARING == 0)
; Insert for SiLABS SFR Paging:
IF (CPU_IDLE_CODE)
                SETB    ?RTX_ISR_SIG
ENDIF
                JMP USER_ROUTINE ;;; Inserted by me
                RETI


//****************************************


//****************************************
//************** user_code.c *************
//****************************************

void USER_ROUTINE () interrupt 31 {
...
   user's code
...
}

/****************************************