abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.

/************* Revision Controle System Header *************
 *                  GSM Layer 1 software
 *
 *        Filename ind_os.h
 *        Version  1.2
 *        Date     05/25/00
 * 
 ************* Revision Controle System Header *************/



#define OS_OK   0
        
typedef SYS_WORD16  T_OS_RETURN;

// Prototype for independant os commands
extern T_OS_RETURN  ind_os_sleep (SYS_UWORD32 millisecs);