]> Gitweb @ Texas Instruments - Open Source Git Repositories - git.TI.com/gitweb - processor-sdk/performance-audio-sr.git/blobdiff - pasdk/test_dsp/framework/audioStreamInpProc.c
PASDK-432:Add code to check for null pointer in shared Beta table
[processor-sdk/performance-audio-sr.git] / pasdk / test_dsp / framework / audioStreamInpProc.c
index fc677b05eb842126caea8d9b98ba01af22975782..e39d3b90ff2755366a8c8e46c6e3625e5d5e1886 100644 (file)
@@ -89,7 +89,7 @@ Int32 gNumPfpAsit2=0;
 #define TR_MOD  trace
 
 // Allow a developer to selectively enable tracing.
-#define CURRENT_TRACE_MASK      0x21
+#define CURRENT_TRACE_MASK      0x27
 
 #define TRACE_MASK_TERSE        0x01   // only flag errors and show init
 #define TRACE_MASK_GENERAL      0x02   // half dozen lines per frame
@@ -306,6 +306,27 @@ extern UInt32 gAspProfileEnable;
 
 #define __TASK_NAME__  "TaskAsip"
 
+
+//
+// Audio Stream Input Task definitions
+//
+
+#define ASIP_FRAMELEN_SS_DEFAULT    ( 256 )
+// FL: pP->frameLength
+//#define ASIP_FRAMELEN_SS_PCM        ( FRAMELENGTH )
+// FL: (***) hard-coded
+#define ASIP_FRAMELEN_SS_DDP_AC3    ( 1536 )
+// FL: (***) hard-coded
+#define ASIP_FRAMELEN_SS_THD        ( 1536 )        
+
+#define ASIP_FRAMELEN_SS_DTS        ( 512 )         
+
+// Compute decoder frame length based on selected source
+static Int getFrameLengthSourceSel(
+    const PAF_ASIT_Params *pP, 
+    Int8 sourceSelect
+);
+
 LINNO_DEFN(TaskAsip); /* Line number macros */
 ERRNO_DEFN(TaskAsip); /* Error number macros */
 
@@ -319,7 +340,7 @@ PAF_ASIT_Config gPAF_ASIT_config = {
 };
 
 // Global debug counters */
-UInt32 gTaskAsipCnt             =0;
+UInt32 gAsipRxSioReclaimCnt     =0;
 UInt32 gAsipInitCnt             =0;
 UInt32 gAsipInfo1Cnt            =0;
 UInt32 gAsipInfo2Cnt            =0;
@@ -331,11 +352,14 @@ UInt32 gAsipInfo1_PrimaryErrCnt =0;
 UInt32 gAsipInfo1_ErrCnt        =0;
 UInt32 gAsipInfo2_PrimaryErrCnt =0;
 UInt32 gAsipInfo2_ErrCnt        =0;
+// debug
 UInt32 gCapIbReset_cnt          =0;
 UInt32 gCapIb_cnt               =0;
-// debug
 UInt32 gCbWrtAfErrCnt           =0; // decoder output circular buffer write error count (returned from ARM to DSP)
                                    
+// For writeDECCommandRestart
+volatile UInt32 gCommandOutputTask_SYNC   =0;
+volatile UInt32 gCommandOutputTask_ACK    =0;
 
 #include "dbgDib.h" // debug
 
@@ -365,14 +389,12 @@ Void taskAsipFxn(
     Int errno;                      /* error number */
     Int zMD, zMI, zMS, zX;
     Int loopCount = 0;  // used to stop trace to see startup behavior.        
-    UInt32 curTime;
     Int size;
     // Messaging
     ASP_Msg *pAspMsg;              
     Int status;
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8;
-#endif
+    char asipMsgBuf[ASP_MSG_BUF_LEN];
 
     Log_info0("Enter taskAsipFxn()");
 
@@ -442,7 +464,7 @@ Void taskAsipFxn(
     //      - AlgKey: Dec/Enc chain to Array Initialization
     //      - Device: I/O Device Initialization
     //      - DecOpCircBuf: Decoder Output Circular Buffer
-    //      - Unused: (available)
+    //      - OutIS: Output Init-Sync
     //
     LINNO_RPRT(TaskAsip, -2);
     for (i=0; i < lengthof(pP->fxns->initPhase); i++)
@@ -532,39 +554,94 @@ Void taskAsipFxn(
     Cache_inv((Ptr)(&IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]), sizeof(IALG_Status *), Cache_Type_ALLD, 0);
     Cache_inv((Ptr)(&IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]), sizeof(IALG_Status *), Cache_Type_ALLD, 0);
     Cache_inv((Ptr)(&IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]), sizeof(IALG_Status *), Cache_Type_ALLD, 0);
+    Cache_inv((Ptr)(&IACP_STD_BETA_TABLE.pStatus[STD_BETA_DTSUHDA]), sizeof(IALG_Status *), Cache_Type_ALLD, 0);
+    Cache_inv((Ptr)(&IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC]), sizeof(IALG_Status *), Cache_Type_ALLD, 0);
+    Cache_inv((Ptr)(&IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC2]), sizeof(IALG_Status *), Cache_Type_ALLD, 0);
     Cache_wait();
-    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]) Log_info0("ERROR: beta unit for Dec==NULL");
-    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]) Log_info0("ERROR: beta unit for Dec==NULL");
-    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]) Log_info0("ERROR: beta unit for Dec==NULL");
-    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]) Log_info0("ERROR: beta unit for Dec==NULL");
-    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]) Log_info0("ERROR: beta unit for Dec==NULL");
-    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]) Log_info0("ERROR: beta unit for Dec==NULL");
-    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]) Log_info0("ERROR: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_DTSUHDA]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC]) Log_info0("WARNING: beta unit for Dec==NULL");
+    if (!IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC2]) Log_info0("WARNING: beta unit for Dec==NULL");
     
     // (***) FL: revisit
     // invalidate Status structures for Beta Units initialized on Slave
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]), sizeof(Int), Cache_Type_ALLD, 0);
-    size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]->size;
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]), size, Cache_Type_ALLD, 0);
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]), sizeof(Int), Cache_Type_ALLD, 0);
-    size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]->size;
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]), size, Cache_Type_ALLD, 0);
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]), sizeof(Int), Cache_Type_ALLD, 0);
-    size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]->size;
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]), size, Cache_Type_ALLD, 0);
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]), sizeof(Int), Cache_Type_ALLD, 0);
-    size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]->size;
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]), size, Cache_Type_ALLD, 0);
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]), sizeof(Int), Cache_Type_ALLD, 0);
-    size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]->size;
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]), size, Cache_Type_ALLD, 0);
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]), sizeof(Int), Cache_Type_ALLD, 0);
-    size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]->size;
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]), size, Cache_Type_ALLD, 0);
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]), sizeof(Int), Cache_Type_ALLD, 0);
-    size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]->size;
-    Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]), size, Cache_Type_ALLD, 0);
-    Cache_wait();
+    //
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DECODE]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_PCM2]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DDP2]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_THD2]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_DTSUHDA] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DTSUHDA]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_DTSUHDA]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_DTSUHDA]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
+    if (IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC2] != NULL)
+    {
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC2]), sizeof(Int), Cache_Type_ALLD, 0);
+        size = IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC2]->size;
+        Cache_inv((Ptr)(IACP_STD_BETA_TABLE.pStatus[STD_BETA_AAC2]), size, Cache_Type_ALLD, 0);
+        Cache_wait();
+    }
     
 #ifdef NON_CACHE_STATUS
     // Get the shared status structure GateMP handles. Initialized at slave.
@@ -584,8 +661,11 @@ Void taskAsipFxn(
     {
         Log_info1("TaskAfp: Gate Index %d:Open status GateMP Fail.", GATEMP_INDEX_THD);
     }
+    if (statusOp_Init(GATEMP_INDEX_DTS) == STATUSOP_INIT_FAIL)
+    {
+        Log_info1("TaskAfp: Gate Index %d:Open status GateMP Fail.", GATEMP_INDEX_DTS);
+    }
 #endif
-
     // (***) FL: revisit
     // invalidate Dec configuration
     Cache_inv(&gPAF_AST_config.xDec[0], DECODEN*sizeof(PAF_AST_Decode), Cache_Type_ALLD, 0);
@@ -632,6 +712,18 @@ Void taskAsipFxn(
         // any error forces idling of input
         if (errno) 
         {
+            // If gCommandOutputTask_SYNC invoked by writeDECCommandRestart, wait for output task in sync ...
+            if (gCommandOutputTask_SYNC) {
+                TRACE_VERBOSE1("TaskAsip: writeDECCommandRestart issued ... Wait for ack from output task side (errno=%d)", errno);
+                // Wait for ack
+                while (gCommandOutputTask_ACK == 0) {
+                    Task_sleep(1);
+                }
+                TRACE_VERBOSE0("TaskAsip: writeDECCommandRestart issued ... Sync-ed! Startover the process");
+                gCommandOutputTask_ACK = 0;
+                gCommandOutputTask_SYNC = 0;
+            }
+            
             for (z=INPUT1; z < INPUTN; z++)
             {
                 if (pAstCfg->xInp[z].hRxSio)
@@ -664,15 +756,9 @@ Void taskAsipFxn(
         // so set to unknown and skip any remaining processing
         if (!pAstCfg->xInp[zMI].hRxSio)
         {
-#ifdef NON_CACHE_STATUS
-            tempVar8 = PAF_SOURCE_UNKNOWN;
-            statusOp_write(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
-                           &tempVar8,
-                           sizeof(tempVar8),
-                           GATEMP_INDEX_DEC);
-#else
-            pAstCfg->xDec[zMD].decodeStatus.sourceProgram = PAF_SOURCE_UNKNOWN;
-#endif
+            sharedMemWriteInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram), 
+                               (Int8)PAF_SOURCE_UNKNOWN, GATEMP_INDEX_DEC);
+
             TRACE_VERBOSE1("TaskAsip: AS%d: No input selected...", as+zMS);
             continue;
         }
@@ -684,75 +770,36 @@ Void taskAsipFxn(
             TRACE_VERBOSE1("TaskAsip: continue as updateInputStatus returns 0x%x", errno);
             continue;
         }
-        
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[zMD].decodeStatus.mode),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
+
         // If master decoder is not enabled, or the input is unlocked, then do nothing
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.mode), 
+                                     GATEMP_INDEX_DEC);
         if (!tempVar8 || !pAstCfg->xInp[zMI].inpBufStatus.lock)
         {
             TRACE_VERBOSE0("TaskAsip: Not locked, continue");
             continue;
         }
-#else
-        // If master decoder is not enabled, or the input is unlocked, then do nothing
-        if (!pAstCfg->xDec[zMD].decodeStatus.mode || !pAstCfg->xInp[zMI].inpBufStatus.lock)
-        {
-            TRACE_VERBOSE0("TaskAsip: Not locked, continue");
-            continue;
-        }
-#endif
         
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
         // If no source selected then do nothing
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect), 
+                                     GATEMP_INDEX_DEC);
         if (tempVar8 == PAF_SOURCE_NONE)
         {
-            tempVar8 = PAF_SOURCE_NONE;
-            statusOp_write(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
-                           &tempVar8,
-                           sizeof(tempVar8),
-                           GATEMP_INDEX_DEC);
-            TRACE_VERBOSE1("TaskAsip: AS%d: no source selected, continue", as+zMS);
-            continue;
-        }
-#else
-        // If no source selected then do nothing
-        if (pAstCfg->xDec[zMD].decodeStatus.sourceSelect == PAF_SOURCE_NONE) 
-        {
-            pAstCfg->xDec[zMD].decodeStatus.sourceProgram = PAF_SOURCE_NONE;
+            sharedMemWriteInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram), 
+                               (Int8)PAF_SOURCE_NONE, GATEMP_INDEX_DEC);
             TRACE_VERBOSE1("TaskAsip: AS%d: no source selected, continue", as+zMS);
             continue;
         }
-#endif
 
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
         // If we want pass processing then proceed directly
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect), 
+                                     GATEMP_INDEX_DEC);
         if (tempVar8 == PAF_SOURCE_PASS)
         {
             TRACE_VERBOSE1("TaskAsip: AS%d: Pass processing ...", as+zMS);
+            sharedMemWriteInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram), 
+                               (Int8)PAF_SOURCE_PASS, GATEMP_INDEX_DEC);
 
-            tempVar8 = PAF_SOURCE_PASS;
-            statusOp_write(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
-                           &tempVar8,
-                           sizeof(tempVar8),
-                           GATEMP_INDEX_DEC);
-#else
-        // If we want pass processing then proceed directly
-        if (pAstCfg->xDec[zMD].decodeStatus.sourceSelect == PAF_SOURCE_PASS) 
-        {
-            TRACE_VERBOSE1("TaskAsip: AS%d: Pass processing ...", as+zMS);
-            pAstCfg->xDec[zMD].decodeStatus.sourceProgram = PAF_SOURCE_PASS;
-#endif
             pP->fxns->sourceDecode(pP, pQ, pAsitCfg, PAF_SOURCE_PASS);
             if (pP->fxns->passProcessing)
             {
@@ -767,40 +814,25 @@ Void taskAsipFxn(
             continue;
         }
 
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
         // .....................................................................
         // At this point we have an enabled input and want to decode something.
         // If no decoder selected then do nothing. Need to reset the sourceProgram, since
         // when no decoder is selected there are no calls to IB
         //if (errno = pP->fxns->autoProcessing(pP, pQ, pC, pC->xDec[zMD].decodeStatus.sourceSelect, pC->xDec[zMD].decAlg[PAF_SOURCE_PCM]))
-        
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect), 
+                                     GATEMP_INDEX_DEC);
         pfpBegin(PFP_ID_ASIT_1, pAsitCfg->taskHandle);  // PFP begin
         gNumPfpAsit1++;
+        // (***) FL: re-visit, hard-coded to use FRAMELENGTH (pP->frameLength) inside function
         errno = pP->fxns->autoProcessing(pP, pQ, pAsitCfg, tempVar8, NULL);
         pfpEnd(PFP_ID_ASIT_1, PFP_FINISH_MEAS);         // PFP end
         gNumPfpAsit1--;
 
-        if (errno) // (***) FL: re-visit this, hard-coded to use PCM framelength inside function
-        {
-            TRACE_VERBOSE1("TaskAsip: autoProcessing returns 0x%x, continue", errno);
-            continue;
-        }
-#else
-        // .....................................................................
-        // At this point we have an enabled input and want to decode something.
-        // If no decoder selected then do nothing. Need to reset the sourceProgram, since
-        // when no decoder is selected there are no calls to IB
-        //if (errno = pP->fxns->autoProcessing(pP, pQ, PC, pC->xDec[zMD].decodeStatus.sourceSelect, pC->xDec[zMD].decAlg[PAF_SOURCE_PCM]))
-        if (errno = pP->fxns->autoProcessing(pP, pQ, pAsitCfg, pAstCfg->xDec[zMD].decodeStatus.sourceSelect, NULL)) // (***) FL: re-visit this, hard-coded to use PCM framelength inside function
+        if (errno)
         {
             TRACE_VERBOSE1("TaskAsip: autoProcessing returns 0x%x, continue", errno);
             continue;
         }
-#endif
         
         // query for input type
         errno = SIO_ctrl(pAstCfg->xInp[zMI].hRxSio, PAF_SIO_CONTROL_GET_SOURCEPROGRAM, (Arg )&sourceProgram);
@@ -810,14 +842,9 @@ Void taskAsipFxn(
             errno = ASPERR_AUTO_PROGRAM;
             continue;
         }
-#ifdef NON_CACHE_STATUS
-        statusOp_write(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
-                      &(sourceProgram),
-                      sizeof(sourceProgram),
-                      GATEMP_INDEX_DEC);
-#else
-        pAstCfg->xDec[zMD].decodeStatus.sourceProgram = sourceProgram;
-#endif
+
+        sharedMemWriteInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram), 
+                           sourceProgram, GATEMP_INDEX_DEC);
 
         // if input is unclassifiable then do nothing
         if (sourceProgram == PAF_SOURCE_UNKNOWN)
@@ -830,17 +857,10 @@ Void taskAsipFxn(
         // input frame, we determine whether or not to call decodeProcessing and with
         // what decAlg.
         sourceSelect = PAF_SOURCE_NONE;
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect), 
+                                     GATEMP_INDEX_DEC);
         switch (tempVar8)
         {
-#else
-        switch (pAstCfg->xDec[zMD].decodeStatus.sourceSelect) 
-        {
-#endif
             // If autodetecting, decoding everything, and input is something
             // (i.e. bitstream or PCM) then decode.
             case PAF_SOURCE_AUTO:
@@ -885,15 +905,8 @@ Void taskAsipFxn(
             // If user made specific selection then program must match select.
             // (NB: this compare relies on ordering of PAF_SOURCE)
             default:
-#ifdef NON_CACHE_STATUS
-                sourceSelect = 0; // due to size difference
-                statusOp_read(&sourceSelect,
-                              &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                              sizeof(Int8),
-                              GATEMP_INDEX_DEC);
-#else
-                sourceSelect = pAstCfg->xDec[zMD].decodeStatus.sourceSelect;
-#endif
+                sourceSelect = (Int)sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
+                                                             GATEMP_INDEX_DEC);
                 if ((sourceSelect >= PAF_SOURCE_PCM) && (sourceSelect <= PAF_SOURCE_N))
                 {
                     if (sourceProgram != sourceSelect)
@@ -911,48 +924,18 @@ Void taskAsipFxn(
             continue;
         }
 
-        // FL: debug, reset IB capture buffer
+#if 0 // debug, reset IB capture buffer
         capIbReset();
         gCapIbReset_cnt++;
         Log_info0("capIbReset()");
+#endif
 
-        // FL: send source select message to slave
-        pAspMsg = (ASP_Msg *)MessageQ_alloc(hAspMsgMaster->heapId, hAspMsgMaster->msgSize); /* allocate message */
-        MessageQ_setReplyQueue(hAspMsgMaster->masterQue, (MessageQ_Msg)pAspMsg);            /* set the return address in the message header */
-        pAspMsg->cmd = ASP_SLAVE_DEC_SOURCE_SELECT;                                         /* fill in message payload */
-        pAspMsg->procId = hAspMsgMaster->masterProcId;
-        pAspMsg->messageId = hAspMsgMaster->messageId & ~(1<<31);
-        pAspMsg->expectResp = TRUE;
-        *(Int32 *)&pAspMsg->buf[0] = sourceSelect;
-        TRACE_MSG3("Tx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-        TRACE_MSG1("sourceSelect=%d", pAspMsg->buf[0]);
-        status = MessageQ_put(hAspMsgMaster->slaveQue, (MessageQ_Msg)pAspMsg);              /* send message */
-        if (status != MessageQ_S_SUCCESS)
-        {
-            SW_BREAKPOINT;
-        }
-        // wait for source select complete message from slave
-        //do {
-        //    status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-        //} while (status != MessageQ_S_SUCCESS);
-        status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-        if (status != MessageQ_S_SUCCESS)
-        {
-            TRACE_TERSE0("MessageQ_get() failure.");
-            SW_BREAKPOINT; // temporary
-        }
-        if ((pAspMsg->procId != hAspMsgMaster->slaveProcId) ||
-            (pAspMsg->cmd != ASP_MASTER_DEC_SOURCE_SELECT_DONE) ||
-            (pAspMsg->messageId != (hAspMsgMaster->messageId | ((UInt32)1<<31))))
-        {
-            TRACE_TERSE3("ERROR: Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            SW_BREAKPOINT;
-        }
-        hAspMsgMaster->messageId = (hAspMsgMaster->messageId + 1) & ~(1<<31);
-        TRACE_MSG3("Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-        status = MessageQ_free((MessageQ_Msg)pAspMsg); /* free the message */
-        if (status != MessageQ_S_SUCCESS)
+        // send source select message to slave
+        *(Int32 *)&asipMsgBuf[0] = sourceSelect;
+        if(AspMsgSend(ASP_SLAVE_DEC_SOURCE_SELECT, ASP_MASTER_DEC_SOURCE_SELECT_DONE,
+                      asipMsgBuf, NULL) != ASP_MSG_NO_ERR)
         {
+            TRACE_VERBOSE0("TaskAsip: error in sending SOURCE_SELECT message");
             SW_BREAKPOINT;
         }
         
@@ -984,43 +967,13 @@ Void taskAsipFxn(
         Task_setPri(pAsitCfg->taskHandle, Task_getPri(pAsitCfg->taskHandle)+1);
 
         // FL: send dec exit message to slave
-        pAspMsg = (ASP_Msg *)MessageQ_alloc(hAspMsgMaster->heapId, hAspMsgMaster->msgSize); /* allocate message */
-        MessageQ_setReplyQueue(hAspMsgMaster->masterQue, (MessageQ_Msg)pAspMsg);            /* set the return address in the message header */
-        pAspMsg->cmd = ASP_SLAVE_DEC_EXIT;                                                  /* fill in message payload */
-        pAspMsg->procId = hAspMsgMaster->masterProcId;
-        pAspMsg->messageId = hAspMsgMaster->messageId & ~(1<<31);
-        pAspMsg->expectResp = TRUE;
-        TRACE_MSG2("Tx ASP message: procId=%d, cmd=%d.", pAspMsg->procId, pAspMsg->cmd);
-        status = MessageQ_put(hAspMsgMaster->slaveQue, (MessageQ_Msg)pAspMsg);              /* send message */
-        if (status != MessageQ_S_SUCCESS)
-        {
-            SW_BREAKPOINT;
-        }
-        // wait for dec exit complete message from slave
-        //do {
-        //    status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-        //} while ((status < 0) || (pAspMsg->cmd != ASP_MASTER_DEC_EXIT_DONE));
-        status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-        if (status != MessageQ_S_SUCCESS)
-        {
-            TRACE_TERSE0("MessageQ_get() failure.");
-            SW_BREAKPOINT; // temporary
-        }
-        if ((pAspMsg->procId != hAspMsgMaster->slaveProcId) || 
-            (pAspMsg->cmd != ASP_MASTER_DEC_EXIT_DONE) ||
-            (pAspMsg->messageId != (hAspMsgMaster->messageId | ((UInt32)1<<31))))
-        {
-            TRACE_TERSE3("ERROR: Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            SW_BREAKPOINT;
-        }
-        hAspMsgMaster->messageId = (hAspMsgMaster->messageId + 1) & ~(1<<31);
-        TRACE_MSG3("Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-        // free the message
-        status = MessageQ_free((MessageQ_Msg)pAspMsg); /* free the message */
-        if (status != MessageQ_S_SUCCESS)
+        if( AspMsgSend(ASP_SLAVE_DEC_EXIT, ASP_MASTER_DEC_EXIT_DONE, NULL, NULL)
+            != ASP_MSG_NO_ERR)
         {
-            SW_BREAKPOINT;
+            TRACE_VERBOSE0("TaskAsip: error in sending DEC_EXIT message");
+            SW_BREAKPOINT;                
         }
+
     } // End of main processing loop for (;;)
     
     //Log_info0("Exit taskAsipFxn()");
@@ -1052,6 +1005,7 @@ PAF_ASIT_initPhaseMalloc(
     Int as;                    /* Audio Stream Number (1, 2, etc.) */
     Int zMS;
     Error_Block    eb;
+       IHeap_Handle   decHeapHandle;
 
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     as = pAstCfg->as;
@@ -1074,25 +1028,20 @@ PAF_ASIT_initPhaseMalloc(
         INPUTN * sizeof (*pAstCfg->xInp),
         HEAP_ID_INTERNAL1_SHM, (IArg)pAstCfg->xInp);
 
-#ifdef NON_CACHE_STATUS
-    /* Decode memory */
-    if (!(pAstCfg->xDec = Memory_calloc((IHeap_Handle)HEAP_EXTERNAL_NONCACHED_SHM,
-        DECODEN * sizeof (*pAstCfg->xDec), 4, &eb)))
-    {
-        TRACE_TERSE1("PAF_ASIT_initPhaseMalloc: AS%d: Memory_calloc failed", as+zMS);
-        SW_BREAKPOINT;
-        return __LINE__;
-    }
-#else
     /* Decode memory */
-    if (!(pAstCfg->xDec = Memory_calloc((IHeap_Handle)HEAP_INTERNAL1_SHM, 
+#ifdef NON_CACHE_STATUS
+    decHeapHandle = (IHeap_Handle)HEAP_EXTERNAL_NONCACHED_SHM;
+#else 
+    decHeapHandle = (IHeap_Handle)HEAP_INTERNAL1_SHM;
+#endif
+    if (!(pAstCfg->xDec = Memory_calloc(decHeapHandle,
         DECODEN * sizeof (*pAstCfg->xDec), 4, &eb)))
     {
         TRACE_TERSE1("PAF_ASIT_initPhaseMalloc: AS%d: Memory_calloc failed", as+zMS);
         SW_BREAKPOINT;
         return __LINE__;
     }
-#endif
+
     TRACE_TERSE3("PAF_ASIT_initPhaseMalloc. (pAstCfg->xDec) %d bytes from space %d at 0x%x.",
         DECODEN * sizeof (*pAstCfg->xDec),
         HEAP_ID_INTERNAL1_SHM, (IArg)pAstCfg->xDec);
@@ -1510,6 +1459,7 @@ PAF_ASIT_initPhaseDevice(
     return 0;
 } //PAF_ASIT_initPhaseDevice
 
+// (***) FL: move to ASOT
 // -----------------------------------------------------------------------------
 // ASIT Initialization Function - Decoder Output Circular Buffer
 //
@@ -1539,13 +1489,16 @@ PAF_ASIT_initPhaseDecOpCircBuf(
     Int errno;                          /* error number */
     Error_Block    eb;
     Int i;
+    ACP_Handle acp;
+    Int betaPrimeOffset;
+    Int zS;
 
     // FL: (***)revisit
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     as = pAstCfg->as;
     zMS = pAstCfg->masterStr;
 
-    /* Decode output circular buffer memory */
+    // Decode output circular buffer memory
     if (!(pAstCfg->xDecOpCb = Memory_calloc((IHeap_Handle)HEAP_INTERNAL1_SHM, 
         DECODEN * sizeof (*pAstCfg->xDecOpCb), 4, &eb)))
     {
@@ -1557,7 +1510,7 @@ PAF_ASIT_initPhaseDecOpCircBuf(
     TRACE_TERSE3("PAF_ASIT_initPhaseDecOpCircBuf. (pAsitCfg->xDecOpCb) %d bytes from space %d at 0x%x.",
         DECODEN * sizeof (*pAstCfg->xDecOpCb),
         HEAP_ID_INTERNAL1_SHM, (IArg)pAstCfg->xDecOpCb);
-        
+
     for (z=DECODE1; z < DECODEN; z++)
     {
         pCb = &pAstCfg->xDecOpCb[z];
@@ -1633,9 +1586,18 @@ PAF_ASIT_initPhaseDecOpCircBuf(
             SW_BREAKPOINT;
         }
         #endif
+    }
 
-        // (***) FL: revisit, here PCM is hard-coded for 256 sample dec op frame length        
-        // Initialize decoder output circular buffer for PCM
+    for (z = DECODE1; z < DECODEN; z++)
+    {
+        //
+        // Initialize decoder output circular
+        //
+        
+        // Initialize status
+        pAstCfg->xDecOpCb[z].cbStatus = *pP->z_pDecOpCircBufStatus[z];
+        
+        // Default initialization
         errno = cbInit(pCb);
         if (errno)
         {
@@ -1643,7 +1605,28 @@ PAF_ASIT_initPhaseDecOpCircBuf(
             return errno;
         }
     }
-
+    
+    // Get ASIT ACP handle
+    acp = pAsitCfg->acp;
+    if (!acp)
+    {
+        TRACE_TERSE1("PAF_ASIT_initPhaseDecOpCircBuf: AS%d: ACP algorithm instance creation  failed", as+zMS);
+        return __LINE__;
+    }
+    
+    // Get Beta Prime offset
+    ((ALG_Handle)acp)->fxns->algControl((ALG_Handle) acp,
+        ACP_GETBETAPRIMEOFFSET, (IALG_Status *)&betaPrimeOffset);
+            
+    for (z = DECODE1; z < DECODEN; z++)
+    {
+        // ACP attach CB
+        zS = pP->streamsFromDecodes[z];
+        acp->fxns->attach(acp, ACP_SERIES_STD,
+            STD_BETA_DECOPCB + betaPrimeOffset * (as-1+zS),
+            (IALG_Status *)&pAstCfg->xDecOpCb[z].cbStatus);        
+    }
+            
     return 0;
 } //PAF_ASIT_initPhaseDecOpCircBuf
 
@@ -2016,8 +1999,8 @@ PAF_ASIT_autoProcessing(
     }
     //frameLength = pP->fxns->computeFrameLength (pcmAlgMaster, FRAMELENGTH,
     //                                            pC->xDec[zMD].decodeStatus.bufferRatio);
-    frameLength = FRAMELENGTH; // FL: fix PCM frameLength for alpha release.
-
+    frameLength = FRAMELENGTH; // (***) FL: fix PCM frameLength
+    
     if (errno = SIO_ctrl(pAstCfg->xInp[zMI].hRxSio,
                          PAF_SIO_CONTROL_SET_PCMFRAMELENGTH, frameLength))
     {
@@ -2159,18 +2142,14 @@ PAF_ASIT_decodeProcessing(
     enum { INIT, INFO1, INFO2, DECODE, FINAL, QUIT } state;
     ALG_Handle alg[DECODEN_MAX];
     Int zMD;
-    Int zMS;
-    Int size;
-    //PAF_InpBufConfig *pIpBufConfig;
+    //Int zMS;
     Int frame; // decoder input frame count
     Int block; // (***) FL: formerly  -- decoder output block count / input frame
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8, temp2Var8;
-#endif
     
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     zMD = pAstCfg->masterDec;
-    zMS = pAstCfg->masterStr;
+    //zMS = pAstCfg->masterStr;
         
     for (z=DECODE1; z < DECODEN; z++)
     {
@@ -2185,29 +2164,16 @@ PAF_ASIT_decodeProcessing(
     state = INIT;
     errno = 0; /* error number */
 
-#ifdef NON_CACHE_STATUS
-    statusOp_read(&tempVar8,
-                  &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                  sizeof(tempVar8),
-                  GATEMP_INDEX_DEC);
+    tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect), 
+                                 GATEMP_INDEX_DEC);
     TRACE_TERSE1("PAF_ASIT_decodeProcessing: sourceSelect is %d", tempVar8);
 
     for (;;) 
     {
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                    sizeof(tempVar8),
-                    GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect), 
+                                     GATEMP_INDEX_DEC);
         if (tempVar8 == PAF_SOURCE_NONE)
         {
-#else
-    TRACE_TERSE1("PAF_ASIT_decodeProcessing: sourceSelect is %d", pAstCfg->xDec[zMD].decodeStatus.sourceSelect);
-
-    for (;;)
-    {
-        if (pAstCfg->xDec[zMD].decodeStatus.sourceSelect == PAF_SOURCE_NONE)
-        {
-#endif
             TRACE_VERBOSE0("PAF_ASIT_decodeProcessing: sourceSelect == PAF_SOURCE_NONE");
             state = QUIT;
         }
@@ -2278,43 +2244,24 @@ PAF_ASIT_decodeProcessing(
                     break;
                 }
                 
-#ifdef NON_CACHE_STATUS
-                statusOp_read(&tempVar8,
-                              &(pAstCfg->xDec[zMD].decodeStatus.sourceDecode),
-                              sizeof(tempVar8),
-                              GATEMP_INDEX_DEC);
-                statusOp_read(&temp2Var8,
-                              &(pAstCfg->xDec[zMD].decodeStatus.sampleRate),
-                              sizeof(tempVar8),
-                              GATEMP_INDEX_DEC);
+                tempVar8  = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceDecode),
+                                              GATEMP_INDEX_DEC);
+                temp2Var8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sampleRate), 
+                                              GATEMP_INDEX_DEC);
                 // Don't start decode until major access unit is found.
                 if (((tempVar8 == PAF_SOURCE_THD)    ||
                      (tempVar8 == PAF_SOURCE_DXP)    ||
                      (tempVar8 == PAF_SOURCE_DTSHD)) &&
                      (temp2Var8 == PAF_SAMPLERATE_UNKNOWN)) 
-#else
-                // Don't start decode until major access unit is found.
-                if (((pAstCfg->xDec[zMD].decodeStatus.sourceDecode == PAF_SOURCE_THD)    ||
-                     (pAstCfg->xDec[zMD].decodeStatus.sourceDecode == PAF_SOURCE_DXP)    ||
-                     (pAstCfg->xDec[zMD].decodeStatus.sourceDecode == PAF_SOURCE_DTSHD)) &&
-                     (pAstCfg->xDec[zMD].decodeStatus.sampleRate == PAF_SAMPLERATE_UNKNOWN))
-#endif
                 {
                     Int z;
                     for (z=DECODE1; z < DECODEN; z++) 
                     {
                         Int zI = pP->inputsFromDecodes[z];
-#ifdef NON_CACHE_STATUS
-                        statusOp_read(&tempVar8,
-                                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                                      sizeof(tempVar8),
-                                      GATEMP_INDEX_DEC);
+                        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode), 
+                                                     GATEMP_INDEX_DEC);
                         if (pAstCfg->xInp[zI].hRxSio && tempVar8)
                         {
-#else
-                        if (pAstCfg->xInp[zI].hRxSio && pAstCfg->xDec[z].decodeStatus.mode)
-                        {
-#endif
                             TRACE_VERBOSE0("TaskAsip: PAF_ASIT_decodeProcessing: INFO1, SIO_issue");
                             if (SIO_issue(pAstCfg->xInp[zI].hRxSio, &pAstCfg->xInp[zI].inpBufConfig,
                                 sizeof(pAstCfg->xInp[zI].inpBufConfig), PAF_SIO_REQUEST_NEWFRAME))
@@ -2485,9 +2432,7 @@ PAF_ASIT_decodeCommand(
     Int as;                 /* Audio Stream Number (1, 2, etc.) */
     Int z;                  /* decode counter */
     Int zS;
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8;
-#endif
 
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     as = pAstCfg->as;
@@ -2495,63 +2440,37 @@ PAF_ASIT_decodeCommand(
     for (z=DECODE1; z < DECODEN; z++) 
     {
         zS = pP->streamsFromDecodes[z];
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.command2),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.command2), 
+                                     GATEMP_INDEX_DEC);
         if (!(tempVar8 & 0x80))
         {
             switch (tempVar8)
             {
                 case 0: // command none - process
                     tempVar8 |= 0x80;
-                    statusOp_write(&(pAstCfg->xDec[z].decodeStatus.command2),
-                                   &tempVar8,
-                                   sizeof(tempVar8),
-                                   GATEMP_INDEX_DEC);
+                    sharedMemWriteInt8(&(pAstCfg->xDec[z].decodeStatus.command2),
+                                       tempVar8, GATEMP_INDEX_DEC);
                     break;
                 case 1: // command abort - leave now
                     TRACE_TERSE2("AS%d: PAF_ASIT_decodeCommand: decode command abort (0x%02x)", as+zS, 1);
                     tempVar8 |= 0x80;
-                    statusOp_write(&(pAstCfg->xDec[z].decodeStatus.command2),
-                                   &tempVar8,
-                                   sizeof(tempVar8),
-                                   GATEMP_INDEX_DEC);
+                    sharedMemWriteInt8(&(pAstCfg->xDec[z].decodeStatus.command2),
+                                       tempVar8, GATEMP_INDEX_DEC);
                     return (ASPERR_ABORT);
                 case 2: // command restart - leave later
                     TRACE_TERSE2("AS%d: PAF_ASIT_decodeCommand: decode command quit (0x%02x)", as+zS, 2);
                     tempVar8 |= 0x80;
-                    statusOp_write(&(pAstCfg->xDec[z].decodeStatus.command2),
-                                   &tempVar8,
-                                   sizeof(tempVar8),
-                                   GATEMP_INDEX_DEC);
-                    return (ASPERR_QUIT);
-                default: // command unknown - ignore
-                    break;
-            }
-        }
-#else
-        if (!(pAstCfg->xDec[z].decodeStatus.command2 & 0x80))
-        {
-            switch (pAstCfg->xDec[z].decodeStatus.command2)
-            {
-                case 0: // command none - process
-                    pAstCfg->xDec[z].decodeStatus.command2 |= 0x80;
-                    break;
-                case 1: // command abort - leave now
-                    TRACE_TERSE2("AS%d: PAF_ASIT_decodeCommand: decode command abort (0x%02x)", as+zS, 1);
-                    pAstCfg->xDec[z].decodeStatus.command2 |= 0x80;
-                    return (ASPERR_ABORT);
-                case 2: // command restart - leave later
-                    TRACE_TERSE2("AS%d: PAF_ASIT_decodeCommand: decode command quit (0x%02x)", as+zS, 2);
-                    pAstCfg->xDec[z].decodeStatus.command2 |= 0x80;
+                    sharedMemWriteInt8(&(pAstCfg->xDec[z].decodeStatus.command2),
+                                       tempVar8, GATEMP_INDEX_DEC);
+                                       
+                    // Invoke command to output task to break the loop
+                    gCommandOutputTask_SYNC = 1;
+                    
                     return (ASPERR_QUIT);
                 default: // command unknown - ignore
                     break;
             }
         }
-#endif
     }
 
     return 0;
@@ -2578,20 +2497,16 @@ PAF_ASIT_decodeInit(
 )
 {
     PAF_AST_Config *pAstCfg;
-    PAF_AST_DecOpCircBufCtl *pCbCtl;    /* Decoder output circular buffer control */
+    //PAF_AST_DecOpCircBufCtl *pCbCtl;    /* Decoder output circular buffer control */
     Int as;                             /* Audio Stream Number (1, 2, etc.) */
     Int z;                              /* decode/encode counter */
     Int errno;                          /* error number */
     Int zI, zS;
     Int zMD;
     Int zMI;
-    ASP_Msg* pAspMsg;                   /* Messaging */
     Int argIdx;
-    Int status;
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8;
-    Int tempVar;
-#endif
+    char decMsgBuf[ASP_MSG_BUF_LEN];
     
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     as = pAstCfg->as;
@@ -2599,23 +2514,17 @@ PAF_ASIT_decodeInit(
     zMI = pP->zone.master;
     (void)as;  // clear compiler warning in case not used with tracing disabled
     
-    pCbCtl = &pAsitCfg->pAspmCfg->decOpCircBufCtl; // get pointer to circular buffer control
+    //pCbCtl = &pAsitCfg->pAspmCfg->decOpCircBufCtl; // get pointer to circular buffer control
 
-#ifdef NON_CACHE_STATUS
     // reset frameCount
     for (z=DECODE1; z < DECODEN; z++)
     {
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode),
+                                     GATEMP_INDEX_DEC);
         if (tempVar8)
         {
-            tempVar = 0;
-            statusOp_write(&(pAstCfg->xDec[z].decodeStatus.frameCount),
-                          &tempVar,
-                          sizeof(tempVar),
-                          GATEMP_INDEX_DEC);
+            sharedMemWriteInt(&(pAstCfg->xDec[z].decodeStatus.frameCount),
+                              (Int)0, GATEMP_INDEX_DEC);
         }
     }
 
@@ -2624,30 +2533,11 @@ PAF_ASIT_decodeInit(
         zI = pP->inputsFromDecodes[z];
         zS = pP->streamsFromDecodes[z];
         (void)zS; // clear compiler warning in case not used with tracing disabled
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                      sizeof(tempVar8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode), 
+                                     GATEMP_INDEX_DEC);
         if (pAstCfg->xInp[zI].hRxSio && tempVar8)
         {
-#else
-    // reset frameCount
-    for (z=DECODE1; z < DECODEN; z++)
-    {
-        if (pAstCfg->xDec[z].decodeStatus.mode)
-        {
-            pAstCfg->xDec[z].decodeStatus.frameCount = 0;
-        }
-    }
 
-    for (z=DECODE1; z < DECODEN; z++)
-    {
-        zI = pP->inputsFromDecodes[z];
-        zS = pP->streamsFromDecodes[z];
-        (void)zS; // clear compiler warning in case not used with tracing disabled
-        if (pAstCfg->xInp[zI].hRxSio && pAstCfg->xDec[z].decodeStatus.mode)
-        {
-#endif
             Uns gear;
             Int frameLength;
             TRACE_VERBOSE1("AS%d: PAF_ASIT_decodeInit: initializing decode", as+zS);
@@ -2657,114 +2547,36 @@ PAF_ASIT_decodeInit(
             Cache_wait();
 
             // FL: send dec activate message to slave
-            pAspMsg = (ASP_Msg *)MessageQ_alloc(hAspMsgMaster->heapId, hAspMsgMaster->msgSize);  /* allocate message */
-            if (pAspMsg == NULL)
-            {
-                TRACE_TERSE0("MessageQ_alloc() failure.");
-                SW_BREAKPOINT; // temporary
-                return -1; // temporary
-            }
-            MessageQ_setReplyQueue(hAspMsgMaster->masterQue, (MessageQ_Msg)pAspMsg);            /* set the return address in the message header */
-            pAspMsg->cmd = ASP_SLAVE_DEC_ACTIVATE;                                              /* fill in message payload */
-            pAspMsg->procId = hAspMsgMaster->masterProcId;
-            pAspMsg->expectResp = TRUE;
-            pAspMsg->messageId = hAspMsgMaster->messageId & ~(1<<31);
             argIdx = 0; // set decIdx (zone index)
-            *(Int32 *)&pAspMsg->buf[argIdx] = z;
-            TRACE_MSG3("Tx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            TRACE_MSG1("decIdx=%d", pAspMsg->buf[0]);
-            status = MessageQ_put(hAspMsgMaster->slaveQue, (MessageQ_Msg)pAspMsg);                       /* send message */
-            if (status != MessageQ_S_SUCCESS)
-            {
-                SW_BREAKPOINT;
-            }
-            // wait for dec activate complete message from slave
-            status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-            if (status != MessageQ_S_SUCCESS)
-            {
-                TRACE_TERSE0("MessageQ_get() failure.");
-                SW_BREAKPOINT; // temporary
-                return -1; // temporary
-            }
-            if ((pAspMsg->procId != hAspMsgMaster->slaveProcId) || 
-                (pAspMsg->cmd != ASP_MASTER_DEC_ACTIVATE_DONE) ||
-                (pAspMsg->messageId != (hAspMsgMaster->messageId | ((UInt32)1<<31))))
+            *(Int32 *)&decMsgBuf[argIdx] = z;
+            if(AspMsgSend(ASP_SLAVE_DEC_ACTIVATE, ASP_MASTER_DEC_ACTIVATE_DONE, 
+                          decMsgBuf, NULL) != ASP_MSG_NO_ERR)
             {
-                TRACE_TERSE3("ERROR: Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
+                TRACE_TERSE0("decodeInit: error in sending DEC_ACTIVATE message ");
                 SW_BREAKPOINT; // temporary
                 return -1; // temporary
-            }      
-            hAspMsgMaster->messageId = (hAspMsgMaster->messageId + 1) & ~(1<<31);
-            TRACE_MSG3("Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            // free the message
-            status = MessageQ_free((MessageQ_Msg)pAspMsg); /* free the message */
-            if (status != MessageQ_S_SUCCESS)
-            {
-                SW_BREAKPOINT;
-            }
-            
+            }           
+
 #if 0 // FL: decoder activate call, slave
             if (decAlg[z]->fxns->algActivate)
                 decAlg[z]->fxns->algActivate (decAlg[z]);
 #endif
-
             // FL: send dec reset message to slave
-            pAspMsg = (ASP_Msg *)MessageQ_alloc(hAspMsgMaster->heapId, hAspMsgMaster->msgSize);  /* allocate message */
-            if (pAspMsg == NULL)
-            {
-                TRACE_TERSE0("MessageQ_alloc() failure.");
-                SW_BREAKPOINT; // temporary
-                return -1; // temporary
-            }
-            MessageQ_setReplyQueue(hAspMsgMaster->masterQue, (MessageQ_Msg)pAspMsg);            /* set the return address in the message header */
-            pAspMsg->cmd = ASP_SLAVE_DEC_RESET;                                                 /* fill in message payload */
-            pAspMsg->procId = hAspMsgMaster->masterProcId;
-            pAspMsg->expectResp = TRUE;
-            pAspMsg->messageId = hAspMsgMaster->messageId & ~(1<<31);
             argIdx = 0; // set decIdx
-            *(Int32 *)&pAspMsg->buf[argIdx] = z;
-            TRACE_MSG3("Tx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            TRACE_MSG1("decIdx=%d", pAspMsg->buf[0]);
-            // wait for dec reset complete message from slave
-            status = MessageQ_put(hAspMsgMaster->slaveQue, (MessageQ_Msg)pAspMsg);              /* send message */
-            if (status != MessageQ_S_SUCCESS)
+            *(Int32 *)&decMsgBuf[argIdx] = z;
+            if(AspMsgSend(ASP_SLAVE_DEC_RESET, ASP_MASTER_DEC_RESET_DONE, 
+                          decMsgBuf, decMsgBuf) != ASP_MSG_NO_ERR)
             {
-                SW_BREAKPOINT;
-            }
-            status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-            if (status != MessageQ_S_SUCCESS)
-            {
-                TRACE_TERSE0("MessageQ_get() failure.");
+                TRACE_TERSE0("decodeInit: error in sending DEC_RESET message ");
                 SW_BREAKPOINT; // temporary
                 return -1; // temporary
             }
-            if ((pAspMsg->procId == hAspMsgMaster->slaveProcId) &&
-                (pAspMsg->cmd == ASP_MASTER_DEC_RESET_DONE) && 
-                (pAspMsg->messageId == (hAspMsgMaster->messageId | ((UInt32)1<<31))))
-            {
-                hAspMsgMaster->messageId = (hAspMsgMaster->messageId + 1) & ~(1<<31);
-                TRACE_MSG3("Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-                TRACE_MSG1("decErrno=%d", pAspMsg->buf[0]);
-
-                argIdx = 0; // get decErrno
-                errno = *(Int32 *)&pAspMsg->buf[argIdx];
-            }
             else
             {
-                //
-                // Invalid message received
-                //
-                TRACE_TERSE3("ERROR: Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-                SW_BREAKPOINT; // temporary
-                return -1; // temporary
-            }
-            // free the message
-            status = MessageQ_free((MessageQ_Msg)pAspMsg); /* free the message */
-            if (status != MessageQ_S_SUCCESS)
-            {
-                SW_BREAKPOINT;
-            }
-            
+                argIdx = 0; // get decErrno
+                errno = *(Int32 *)&decMsgBuf[argIdx];                
+            }   
+
             // (***) FL: revisit
             // invalidate Dec configuration
             Cache_inv(&pAstCfg->xDec[z], sizeof(PAF_AST_Decode), Cache_Type_ALLD, 0);
@@ -2781,63 +2593,41 @@ PAF_ASIT_decodeInit(
                 return errno;
             }
             
-#ifdef NON_CACHE_STATUS
-            gear = 0;  // due to size difference
-            statusOp_read(&gear,
-                          &(pAstCfg->xDec[z].decodeStatus.aspGearControl),
-                          sizeof(Int8),
-                          GATEMP_INDEX_DEC);
+            gear = (Uns)sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.aspGearControl),
+                                             GATEMP_INDEX_DEC);
             tempVar8 = gear < GEARS ? gear : 0;
-            statusOp_write(&(pAstCfg->xDec[z].decodeStatus.aspGearStatus),
-                           &tempVar8,
-                           sizeof(tempVar8),
-                           GATEMP_INDEX_DEC);
-#else
-            gear = pAstCfg->xDec[z].decodeStatus.aspGearControl;
-            pAstCfg->xDec[z].decodeStatus.aspGearStatus = gear < GEARS ? gear : 0;
-#endif
+            sharedMemWriteInt8(&(pAstCfg->xDec[z].decodeStatus.aspGearStatus),
+                                  tempVar8, GATEMP_INDEX_DEC);
             
 #if 0 // FL: change handle to decIdx (zone index)
             frameLength = pP->fxns->computeFrameLength(decAlg[z], 
                 FRAMELENGTH,
                 pC->xDec[z].decodeStatus.bufferRatio);
 #endif
-#if 0 // (***) FL: revisit. Bypass computeFrameLength().
+#if 0 // (***) FL: revisit. Bypass decoder computeFrameLength() function.
             frameLength = pP->fxns->computeFrameLength(z, 
                 FRAMELENGTH, 
                 pC->xDec[z].decodeStatus.bufferRatio);
 #else
-            if (sourceSelect == PAF_SOURCE_PCM)
-            {
-               frameLength = PAF_SYS_FRAMELENGTH;
-            }
-            else if ((sourceSelect == PAF_SOURCE_DDP) || (sourceSelect == PAF_SOURCE_AC3))
-            {
-                frameLength = 1536;
-            }
-            else if (sourceSelect == PAF_SOURCE_THD)
-            {
-                frameLength = 1536; //QIN FIX ME
-            }
-            else
-            {
-                frameLength = 256;
-            }
+            // Compute decoder frame length based on source selection
+            frameLength = getFrameLengthSourceSel(pP, sourceSelect);
 #endif    
             
             pAstCfg->xDec[z].decodeControl.frameLength = frameLength;
             pAstCfg->xDec[z].decodeInStruct.sampleCount = frameLength;
             pAstCfg->xDec[z].decodeControl.sampleRate = PAF_SAMPLERATE_UNKNOWN;
-            
+          
+#if 0 // FL: Moved to ARM:ASDT:INFO
             // Initialize decoder output circular buffer for selected source
             errno = cbInitSourceSel(pCbCtl, z, sourceSelect, frameLength, FRAMELENGTH, 0);
             if (errno)
             {
-                SW_BREAKPOINT; // FL: debug
+                SW_BREAKPOINT; // debug
                 return errno;
             }
-            // FL: debug
+            // debug
             cbLog(pCbCtl, z, 1, "PAF_ASIT_decodeInit:cbInitSourceSel");
+#endif
             
             if (z != zMD) 
             {
@@ -2847,23 +2637,14 @@ PAF_ASIT_decodeInit(
                 }
             }
 
-#ifdef NON_CACHE_STATUS
-            statusOp_read(&tempVar8,
-                          &(pAstCfg->xDec[z].decodeStatus.sourceSelect),
-                          sizeof(Int8),
-                          GATEMP_INDEX_DEC);
+            tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.sourceSelect),
+                                            GATEMP_INDEX_DEC);
             if (errno = SIO_ctrl(pAstCfg->xInp[zI].hRxSio, PAF_SIO_CONTROL_SET_SOURCESELECT,
                 DECSIOMAP(tempVar8)))
             {
                 return errno;
             }
-#else
-            if (errno = SIO_ctrl(pAstCfg->xInp[zI].hRxSio, PAF_SIO_CONTROL_SET_SOURCESELECT,
-                DECSIOMAP(pAstCfg->xDec[z].decodeStatus.sourceSelect)))
-            {
-                return errno;
-            }
-#endif
+
             if (errno = SIO_ctrl(pAstCfg->xInp[zI].hRxSio, PAF_SIO_CONTROL_SET_PCMFRAMELENGTH, 
                 frameLength))
             {
@@ -2921,17 +2702,15 @@ PAF_ASIT_decodeInfo(
     Int zMD;
     Int zMI;
     Int zMS;
-    UInt32 curTime;
-    ASP_Msg *pAspMsg;          /* Messaging */
     Int argIdx;
-    Int status;
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8;
     Int tempVar;
-#endif
+    char decMsgBuf[ASP_MSG_BUF_LEN];
     // FL: revisit
     //Int size;
     //PAF_InpBufConfig *pIpBufConfig;
+    // debug
+    //UInt32 curTime;
 
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     as = pAstCfg->as;
@@ -2983,21 +2762,13 @@ PAF_ASIT_decodeInfo(
                     // return (ASPERR_INFO_RATECHANGE);
                 }
             }
-#ifdef NON_CACHE_STATUS
-            statusOp_read(&tempVar8,
-                          &(pAstCfg->xDec[zD].decodeStatus.sourceDecode),
-                          sizeof(Int8),
-                          GATEMP_INDEX_DEC);
+
+            tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zD].decodeStatus.sourceDecode),
+                                            GATEMP_INDEX_DEC);
             pAstCfg->xDec[zD].decodeControl.emphasis = 
                 tempVar8 != PAF_SOURCE_PCM
                 ? PAF_IEC_PREEMPHASIS_NO // fix for Mantis ID #119
                 : pAstCfg->xInp[z].inpBufStatus.emphasisStatus;
-#else
-            pAstCfg->xDec[zD].decodeControl.emphasis =
-                pAstCfg->xDec[zD].decodeStatus.sourceDecode != PAF_SOURCE_PCM
-                ? PAF_IEC_PREEMPHASIS_NO // fix for Mantis ID #119
-                : pAstCfg->xInp[z].inpBufStatus.emphasisStatus;
-#endif
         }
         else 
         {
@@ -3018,9 +2789,10 @@ PAF_ASIT_decodeInfo(
             return ASPERR_RECLAIM;
         }
         
-        // FL: debug, capture input buffer
+#if 0 // debug, capture input buffer
         capIb(pAstCfg->xInp[zMI].pInpBuf);
         gCapIb_cnt++;
+#endif
         
 #if 0 // (***) FL: shows timing of Input Rx SIO reclaim after decoding has started (autodet complete)
         // (***) debug // B5
@@ -3038,11 +2810,12 @@ PAF_ASIT_decodeInfo(
         // Simulate Rx SIO_reclaim() pend
         //
         //Semaphore_pend(semaphoreRxAudio, BIOS_WAIT_FOREVER); 
-        gTaskAsipCnt++;
-        curTime = Clock_getTicks();
+        //curTime = Clock_getTicks();
         //System_printf("System time in TaskAsipFxn Rx audio = %lu\n", (ULong)curTime);        
         //Log_info1("System time in TaskAsipFxn Rx audio = %u", curTime);
         //Log_info1("decodeInfo():Rx SIO reclaim(), system time = %u", curTime);
+        
+        gAsipRxSioReclaimCnt++;
     } //pAstCfg->xInp[zMI].hRxSio
 
     // Decode info
@@ -3051,17 +2824,11 @@ PAF_ASIT_decodeInfo(
         zI = pP->inputsFromDecodes[z];
         zS = pP->streamsFromDecodes[z];
         (void)zS; // clear compiler warning in case not used with tracing disabled
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                      sizeof(Int8),
-                      GATEMP_INDEX_DEC);
+
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode),
+                                     GATEMP_INDEX_DEC);
         if (pAstCfg->xInp[zI].hRxSio && tempVar8)
         {
-#else
-        if (pAstCfg->xInp[zI].hRxSio && pAstCfg->xDec[z].decodeStatus.mode) 
-        {
-#endif
             TRACE_GEN2("PAF_ASIT_decodeInfo: AS%d: processing frame %d -- info", as+zS, frame);
 
             if (errno = pP->fxns->updateInputStatus(pAstCfg->xInp[zI].hRxSio,
@@ -3081,61 +2848,20 @@ PAF_ASIT_decodeInfo(
 #endif
             
             // FL: send info message to slave
-            pAspMsg = (ASP_Msg *)MessageQ_alloc(hAspMsgMaster->heapId, hAspMsgMaster->msgSize); /* allocate message */
-            if (pAspMsg == NULL)
-            {
-                TRACE_TERSE0("MessageQ_alloc() failure.");
-                SW_BREAKPOINT; // temporary
-                return -1;  // temporary
-            }
-            MessageQ_setReplyQueue(hAspMsgMaster->masterQue, (MessageQ_Msg)pAspMsg);            /* set the return address in the message header */
-            pAspMsg->cmd = ASP_SLAVE_DEC_INFO;                                                  /* fill in message payload */
-            pAspMsg->procId = hAspMsgMaster->masterProcId;
-            pAspMsg->expectResp = TRUE;
-            pAspMsg->messageId = hAspMsgMaster->messageId & ~(1<<31);
             argIdx = 0; // set decIdx
-            *(Int32 *)&pAspMsg->buf[argIdx] = z;
-            TRACE_MSG3("Tx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            TRACE_MSG1("decIdx=%d", pAspMsg->buf[0]);
-            status = MessageQ_put(hAspMsgMaster->slaveQue, (MessageQ_Msg)pAspMsg);              /* send message to slave */
-            if (status != MessageQ_S_SUCCESS)
-            {
-                SW_BREAKPOINT;
-            }
-            // wait for dec info complete message from slave -- temporary
-            status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-            if (status != MessageQ_S_SUCCESS)
+            *(Int32 *)&decMsgBuf[argIdx] = z;
+            if(AspMsgSend(ASP_SLAVE_DEC_INFO, ASP_MASTER_DEC_INFO_DONE, 
+                          decMsgBuf, decMsgBuf) != ASP_MSG_NO_ERR)
             {
-                TRACE_TERSE0("MessageQ_get() failure.");
-                SW_BREAKPOINT;
-                return -1; // temporary
-            }
-            if ((pAspMsg->procId == hAspMsgMaster->slaveProcId) &&
-                (pAspMsg->cmd == ASP_MASTER_DEC_INFO_DONE) && 
-                (pAspMsg->messageId == (hAspMsgMaster->messageId | ((UInt32)1<<31))))
-            {
-                hAspMsgMaster->messageId = (hAspMsgMaster->messageId + 1) & ~(1<<31);
-                TRACE_TERSE3("Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-                TRACE_MSG1("decErrno=%d", pAspMsg->buf[0]);
-                
-                argIdx = 0; // get decErrno
-                errno = *(Int32 *)&pAspMsg->buf[argIdx];
-            }
-            else
-            {
-                //
-                // Invalid message received
-                //
-                TRACE_TERSE3("ERROR: Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
+                TRACE_TERSE0("decodeInfo: error in sending DEC_INFO message ");
                 SW_BREAKPOINT; // temporary
-                return -1; // temporary
+                return -1;     // temporary
             }
-            // free the message
-            status = MessageQ_free((MessageQ_Msg)pAspMsg); /* free the message */
-            if (status != MessageQ_S_SUCCESS)
+            else
             {
-                SW_BREAKPOINT;
-            }
+                argIdx = 0; // get decErrno
+                errno = *(Int32 *)&decMsgBuf[argIdx];                
+            }             
 
 #if 1
             // (***) FL: revisit
@@ -3155,30 +2881,18 @@ PAF_ASIT_decodeInfo(
                 return errno;
             }
 
-#ifdef NON_CACHE_STATUS
-            statusOp_read(&tempVar,
-                          &(pAstCfg->xDec[z].decodeStatus.frameCount),
-                          sizeof(Int),
-                          GATEMP_INDEX_DEC);
             // increment decoded frame count
+            tempVar = sharedMemReadInt(&(pAstCfg->xDec[z].decodeStatus.frameCount),
+                                       GATEMP_INDEX_DEC);
             tempVar += 1;
-            statusOp_write(&(pAstCfg->xDec[z].decodeStatus.frameCount),
-                           &tempVar,
-                           sizeof(Int),
-                           GATEMP_INDEX_DEC);
-#else
-            // increment decoded frame count
-            pAstCfg->xDec[z].decodeStatus.frameCount += 1;
-#endif
+            sharedMemWriteInt(&(pAstCfg->xDec[z].decodeStatus.frameCount),
+                              tempVar, GATEMP_INDEX_DEC);
         }
     } // z=DECODE1 to DECODEN
 
-#ifdef NON_CACHE_STATUS
-    statusOp_read(&tempVar8,
-                  &(pAstCfg->xDec[zMD].decodeStatus.mode),
-                  sizeof(Int8),
-                  GATEMP_INDEX_DEC);
     // query IB for latest sourceProgram (needed if we started decoding due to a force mode)
+    tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.mode),
+                                 GATEMP_INDEX_DEC);
     if (tempVar8)
     {
         XDAS_Int8 sourceProgram;
@@ -3188,70 +2902,33 @@ PAF_ASIT_decodeInfo(
             TRACE_TERSE1("return error ASPERR_AUTO_PROGRAM. errno 0x%x.", errno);
             return ASPERR_AUTO_PROGRAM;
         }
-        statusOp_write(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
-                       &(sourceProgram),
-                       sizeof(Int8),
-                       GATEMP_INDEX_DEC);
+
+        sharedMemWriteInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
+                           sourceProgram, GATEMP_INDEX_DEC);
     }
 
     // since now decoding update decode status for all enabled decoders
     for (z=DECODE1; z < DECODEN; z++)
     {
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                      sizeof(Int8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode),
+                                     GATEMP_INDEX_DEC);
         if (tempVar8)
         {
-            statusOp_read(&tempVar8,
-                          &(pAstCfg->xDec[z].decodeStatus.sourceProgram),
-                          sizeof(Int8),
-                          GATEMP_INDEX_DEC);
-            statusOp_write(&(pAstCfg->xDec[z].decodeStatus.sourceDecode),
-                           &tempVar8,
-                           sizeof(Int8),
-                           GATEMP_INDEX_DEC);
-            statusOp_read(&tempVar8,
-                          &(pAstCfg->xDec[z].decodeStatus.sourceSelect),
-                          sizeof(Int8),
-                          GATEMP_INDEX_DEC);
+            tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.sourceProgram),
+                                         GATEMP_INDEX_DEC);
+            sharedMemWriteInt8(&(pAstCfg->xDec[z].decodeStatus.sourceDecode),
+                               tempVar8, GATEMP_INDEX_DEC);
+
+            tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.sourceSelect),
+                                         GATEMP_INDEX_DEC);
             if (tempVar8 == PAF_SOURCE_SNG)
             {
                 tempVar8 = PAF_SOURCE_SNG;
-                statusOp_write(&(pAstCfg->xDec[z].decodeStatus.sourceDecode),
-                               &tempVar8,
-                               sizeof(Int8),
-                               GATEMP_INDEX_DEC);
-            }
-        }
-    }
-#else
-    // query IB for latest sourceProgram (needed if we started decoding due to a force mode)
-    if (pAstCfg->xDec[zMD].decodeStatus.mode) 
-    {
-        XDAS_Int8 sourceProgram;
-        if (errno = SIO_ctrl(pAstCfg->xInp[zMI].hRxSio, PAF_SIO_CONTROL_GET_SOURCEPROGRAM,
-            (Arg)&sourceProgram))
-        {
-            TRACE_TERSE1("return error ASPERR_AUTO_PROGRAM. errno 0x%x.", errno);
-            return ASPERR_AUTO_PROGRAM;
-        }
-        pAstCfg->xDec[zMD].decodeStatus.sourceProgram = sourceProgram;
-    }
-
-    // since now decoding update decode status for all enabled decoders
-    for (z=DECODE1; z < DECODEN; z++) 
-    {
-        if (pAstCfg->xDec[z].decodeStatus.mode) 
-        {
-            pAstCfg->xDec[z].decodeStatus.sourceDecode = pAstCfg->xDec[z].decodeStatus.sourceProgram;
-            if (pAstCfg->xDec[z].decodeStatus.sourceSelect == PAF_SOURCE_SNG)
-            {
-                pAstCfg->xDec[z].decodeStatus.sourceDecode = PAF_SOURCE_SNG;
+                sharedMemWriteInt8(&(pAstCfg->xDec[z].decodeStatus.sourceDecode),
+                                   tempVar8, GATEMP_INDEX_DEC);
             }
         }
     }
-#endif
 
 #if 0 // FL: ASDT (slave)
     // TODO: move this to start of this function so that it doesn't affect IO timing
@@ -3367,9 +3044,7 @@ PAF_AST_decodeCont(
     Int z;                      /* decode counter */
     Int zI, zS;
     Int zMD;
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8;
-#endif
 
     
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
@@ -3383,21 +3058,12 @@ PAF_AST_decodeCont(
         zI = pP->inputsFromDecodes[z];
         zS = pP->streamsFromDecodes[z];
         (void)zS;
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                      sizeof(Int8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode),
+                                     GATEMP_INDEX_DEC);
         if (z == zMD
             || ! pAstCfg->xInp[zI].hRxSio
             || ! tempVar8)
             continue;
-#else
-        if (z == zMD
-            || ! pAstCfg->xInp[zI].hRxSio
-            || ! pAstCfg->xDec[z].decodeStatus.mode)
-            continue;
-#endif
         TRACE_VERBOSE2("PAF_AST_decodeCont: AS%d: awaiting frame %d -- data", as+zS, frame);
         if (SIO_reclaim(pAstCfg->xInp[zI].hRxSio, (Ptr)&pAstCfg->xInp[zI].pInpBuf, NULL)
             != sizeof (pAstCfg->xInp[zI].inpBufConfig))
@@ -3436,11 +3102,10 @@ PAF_ASIT_decodeDecode(
     Int z;                      /* decode/stream counter */
     Int errno;                  /* error number */
     //Int ch;
-    ASP_Msg *pAspMsg;           /* Messaging */
     Int argIdx;
-    Int status;
     Int cbErrno;
     Int frameLength;    
+    char decMsgBuf[ASP_MSG_BUF_LEN];
 
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     as = pAstCfg->as;
@@ -3472,8 +3137,9 @@ PAF_ASIT_decodeDecode(
                     (IArg)pAstCfg->xInp[z].pInpBuf->base.pVoid,
                     (IArg)pAstCfg->xInp[z].pInpBuf->head.pVoid);
 
-            // FL: debug, capture input buffer
-            //capIbPcm(pAstCfg->xInp[z].pInpBuf);
+#if 0 // debug, capture input buffer
+            capIbPcm(pAstCfg->xInp[z].pInpBuf);
+#endif
             
             // (***) FL: revisit
             // write back Dec configuration
@@ -3481,67 +3147,28 @@ PAF_ASIT_decodeDecode(
             Cache_wait();                        
 
             // FL: send decode message to slave
-            pAspMsg = (ASP_Msg *)MessageQ_alloc(hAspMsgMaster->heapId, hAspMsgMaster->msgSize);  /* allocate message */
-            if (pAspMsg == NULL)
-            {
-                TRACE_TERSE0("MessageQ_alloc() failure.");
-                SW_BREAKPOINT; // temporary
-                return -1; // temporary
-            }
-            MessageQ_setReplyQueue(hAspMsgMaster->masterQue, (MessageQ_Msg)pAspMsg);            /* set the return address in the message header */
-            pAspMsg->cmd = ASP_SLAVE_DEC_DECODE;                                                /* fill in message payload */
-            pAspMsg->procId = hAspMsgMaster->masterProcId;
-            pAspMsg->expectResp = TRUE;
-            pAspMsg->messageId = hAspMsgMaster->messageId & ~(1<<31);
             argIdx = 0; // set decIdx
-            *(Int32 *)&pAspMsg->buf[argIdx] = z;
-            TRACE_MSG3("Tx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            TRACE_MSG1("decIdx=%d", pAspMsg->buf[argIdx]);
-            status = MessageQ_put(hAspMsgMaster->slaveQue, (MessageQ_Msg)pAspMsg);              /* send message */
-            if (status != MessageQ_S_SUCCESS)
+            *(Int32 *)&decMsgBuf[argIdx] = z;
+            if(AspMsgSend(ASP_SLAVE_DEC_DECODE, ASP_MASTER_DEC_DECODE_DONE, 
+                          decMsgBuf, decMsgBuf) != ASP_MSG_NO_ERR)
             {
-                SW_BREAKPOINT;
-            }
-            // wait for decode complete message from slave -- temporary
-            status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-            if (status != MessageQ_S_SUCCESS)
-            {
-                TRACE_TERSE0("MessageQ_get() failure.");
+                TRACE_TERSE0("decodeDecode: error in sending DEC_DECODE message ");
                 SW_BREAKPOINT; // temporary
-                return -1; // temporary
+                return -1;     // temporary
             }
-            if ((pAspMsg->procId == hAspMsgMaster->slaveProcId) && 
-                (pAspMsg->cmd == ASP_MASTER_DEC_DECODE_DONE) &&
-                (pAspMsg->messageId == (hAspMsgMaster->messageId | ((UInt32)1<<31))))
+            else 
             {
-                hAspMsgMaster->messageId = (hAspMsgMaster->messageId + 1) & ~(1<<31);
-                TRACE_MSG3("Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-                
                 argIdx = 0; // get decErrno
-                errno = *(Int32 *)&pAspMsg->buf[argIdx];
+                errno = *(Int32 *)&decMsgBuf[argIdx];
                 argIdx += sizeof(Int32); // get cbErrno
-                cbErrno = *(Int32 *)&pAspMsg->buf[argIdx];
+                cbErrno = *(Int32 *)&decMsgBuf[argIdx];
                 if (cbErrno != 0)
                 {
                     gCbWrtAfErrCnt++;
                     TRACE_TERSE1("CB write error=%d", cbErrno);
                     //SW_BREAKPOINT; // temporary
                 }
-            }
-            else
-            {
-                //
-                // Invalid message received
-                //
-                TRACE_TERSE3("ERROR: Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-                SW_BREAKPOINT; // temporary
-            }
-            // free the message
-            status = MessageQ_free((MessageQ_Msg)pAspMsg); /* free the message */
-            if (status != MessageQ_S_SUCCESS)
-            {
-                SW_BREAKPOINT;
-            }
+            }           
 
             // (***) FL: revisit
             // invalidate Dec configuration
@@ -3568,27 +3195,13 @@ PAF_ASIT_decodeDecode(
                 FRAMELENGTH, 
                 pC->xDec[z].decodeStatus.bufferRatio);
 #endif
-#if 0 // (***) FL: revisit. Bypass computeFrameLength().
+#if 0 // (***) FL: revisit. Bypass decoder computeFrameLength() function.
             frameLength = pP->fxns->computeFrameLength(z, 
                 FRAMELENGTH, 
                 pC->xDec[z].decodeStatus.bufferRatio);
 #else
-            if (sourceSelect == PAF_SOURCE_PCM)
-            {
-                frameLength = PAF_SYS_FRAMELENGTH;
-            }
-            else if ((sourceSelect == PAF_SOURCE_DDP) || (sourceSelect == PAF_SOURCE_AC3))
-            {
-                frameLength = 1536;
-            }
-            else if (sourceSelect == PAF_SOURCE_THD)
-            {
-                frameLength = 1536; //QIN FIX ME
-            }
-            else
-            {
-                frameLength = 256;
-            }
+            // Compute decoder frame length based on source selection
+            frameLength = getFrameLengthSourceSel(pP, sourceSelect);
 #endif
 
 
@@ -3596,7 +3209,7 @@ PAF_ASIT_decodeDecode(
 //            // modify for different decoders
 //            if (sourceSelect == PAF_SOURCE_THD)
 //            {
-//             start_profiling = 1;
+//                start_profiling = 1;
 //            }
 //            else
 //            {
@@ -3687,28 +3300,15 @@ PAF_ASIT_decodeFinalTest(
     Int zMD;
     Int sourceSelect;
     Int sourceProgram;
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8, temp2Var8;
-#endif
 
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     zMD = pAstCfg->masterDec;
 
-#ifdef NON_CACHE_STATUS
-    statusOp_read(&tempVar8,
-                  &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                  sizeof(Int8),
-                  GATEMP_INDEX_DEC);
-    sourceSelect = tempVar8;
-    statusOp_read(&tempVar8,
-                  &(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
-                  sizeof(Int8),
-                  GATEMP_INDEX_DEC);
-    sourceProgram = tempVar8;
-#else
-    sourceSelect  = pAstCfg->xDec[zMD].decodeStatus.sourceSelect;
-    sourceProgram = pAstCfg->xDec[zMD].decodeStatus.sourceProgram;
-#endif
+    sourceSelect  = (Int)sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
+                                           GATEMP_INDEX_DEC);
+    sourceProgram = (Int)sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceProgram),
+                                           GATEMP_INDEX_DEC);
 
     if ((sourceSelect == PAF_SOURCE_NONE) || (sourceSelect == PAF_SOURCE_PASS))
     {
@@ -3740,25 +3340,14 @@ PAF_ASIT_decodeFinalTest(
         }
         else 
         {
-#ifdef NON_CACHE_STATUS
-            statusOp_read(&tempVar8,
-                          &(pAstCfg->xDec[zMD].decodeStatus.sourceDecode),
-                          sizeof(Int8),
-                          GATEMP_INDEX_DEC);
-            statusOp_read(&temp2Var8,
-                          &(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
-                          sizeof(Int8),
-                          GATEMP_INDEX_DEC);
+            tempVar8  = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceDecode),
+                                          GATEMP_INDEX_DEC);
+            temp2Var8 = sharedMemReadInt8(&(pAstCfg->xDec[zMD].decodeStatus.sourceSelect),
+                                          GATEMP_INDEX_DEC);
             if (temp2Var8 != tempVar8)
             {
                 return 1;
             }
-#else
-            if (pAstCfg->xDec[zMD].decodeStatus.sourceSelect != pAstCfg->xDec[zMD].decodeStatus.sourceDecode)
-            {
-                return 1;
-            }
-#endif
         }
     }
 
@@ -3790,14 +3379,9 @@ PAF_ASIT_decodeComplete(
     PAF_AST_Config *pAstCfg;
     Int as;                     /* Audio Stream Number (1, 2, etc.) */
     Int z;                      /* decode/encode counter */
-    ASP_Msg* pAspMsg;
     Int argIdx;
-    Int errno;                  /* error number */
-    Int status;
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8;
-#endif
-
+    char decMsgBuf[ASP_MSG_BUF_LEN];
     
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
     as = pAstCfg->as;
@@ -3812,66 +3396,26 @@ PAF_ASIT_decodeComplete(
         DEC_Handle dec = (DEC_Handle )decAlg[z];
 #endif /* PAF_ASP_FINAL */
         Int zI = pP->inputsFromDecodes[z];
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                      sizeof(Int8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode),
+                                     GATEMP_INDEX_DEC);
         if (pAstCfg->xInp[zI].hRxSio && tempVar8)
         {
-#else
-        if (pAstCfg->xInp[zI].hRxSio && pAstCfg->xDec[z].decodeStatus.mode) 
-        {
-#endif
             TRACE_VERBOSE1("PAF_ASIT_decodeComplete: AS%d: finalizing decode", as+z);
 #ifdef PAF_ASP_FINAL
             if (dec->fxns->final)
                 dec->fxns->final(dec, NULL, &pAstCfg->xDec[z].decodeControl,
                                  &pAstCfg->xDec[z].decodeStatus);
 #endif /* PAF_ASP_FINAL */
+
             // FL: send dec deactivate message to slave
-            pAspMsg = (ASP_Msg *)MessageQ_alloc(hAspMsgMaster->heapId, hAspMsgMaster->msgSize);  /* allocate message */
-            if (pAspMsg == NULL)
-            {
-                TRACE_TERSE0("MessageQ_alloc() failure.");
-                errno = -1; // temporary
-                return errno;
-            }
-            MessageQ_setReplyQueue(hAspMsgMaster->masterQue, (MessageQ_Msg)pAspMsg);              /* set the return address in the message header */
-            pAspMsg->cmd = ASP_SLAVE_DEC_DEACTIVATE;                                              /* fill in message payload */
-            pAspMsg->procId = hAspMsgMaster->masterProcId;
-            pAspMsg->expectResp = TRUE;
-            pAspMsg->messageId = hAspMsgMaster->messageId & ~(1<<31);
             argIdx = 0; // set decIdx
-            *(Int32 *)&pAspMsg->buf[argIdx] = z;
-            TRACE_MSG3("Tx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            TRACE_MSG1("decIdx=%d", pAspMsg->buf[0]);
-            status = MessageQ_put(hAspMsgMaster->slaveQue, (MessageQ_Msg)pAspMsg);                /* send message */
-            if (status != MessageQ_S_SUCCESS)
-            {
-                SW_BREAKPOINT;
-            }
-            // wait for dec deactivate complete message from slave
-            status = MessageQ_get(hAspMsgMaster->masterQue, (MessageQ_Msg *)&pAspMsg, MessageQ_FOREVER);
-            if (status != MessageQ_S_SUCCESS)
-            {
-                TRACE_TERSE0("MessageQ_get() failure.");
-                return errno;
-            }
-            if ((pAspMsg->procId != hAspMsgMaster->slaveProcId) ||
-                (pAspMsg->cmd != ASP_MASTER_DEC_DEACTIVATE_DONE) ||
-                (pAspMsg->messageId != (hAspMsgMaster->messageId | ((UInt32)1<<31))))
-            {
-                TRACE_MSG3("ERROR: Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-                SW_BREAKPOINT; // temporary
-            }          
-            hAspMsgMaster->messageId = (hAspMsgMaster->messageId + 1) & ~(1<<31);            
-            TRACE_TERSE3("Rx ASP message: procId=%d, cmd=%d, messageId=0x%04x", pAspMsg->procId, pAspMsg->cmd, pAspMsg->messageId);
-            // free the message
-            status = MessageQ_free((MessageQ_Msg)pAspMsg); /* free the message */
-            if (status != MessageQ_S_SUCCESS)
+            *(Int32 *)&decMsgBuf[argIdx] = z;
+            if(AspMsgSend(ASP_SLAVE_DEC_DEACTIVATE, ASP_MASTER_DEC_DEACTIVATE_DONE,
+                          decMsgBuf, NULL) != ASP_MSG_NO_ERR)
             {
+                TRACE_TERSE0("decodeComplete: error in sending DEC_DEACTIVATE message.");
                 SW_BREAKPOINT;
+                return -1;
             }
 
 #if 0 // FL: decoder deactivate call, slave
@@ -3988,33 +3532,20 @@ PAF_ASIT_sourceDecode(
 {
     PAF_AST_Config *pAstCfg;
     Int z;                              /* decode counter */
-#ifdef NON_CACHE_STATUS
     Int8 tempVar8;
-#endif
 
     pAstCfg = pAsitCfg->pAstCfg; // get pointer to AST common (shared) configuration
 
     for (z=DECODE1; z < DECODEN; z++)
     {
-#ifdef NON_CACHE_STATUS
-        statusOp_read(&tempVar8,
-                      &(pAstCfg->xDec[z].decodeStatus.mode),
-                      sizeof(Int8),
-                      GATEMP_INDEX_DEC);
+        tempVar8 = sharedMemReadInt8(&(pAstCfg->xDec[z].decodeStatus.mode),
+                                     GATEMP_INDEX_DEC);
         if (tempVar8)
         {
             tempVar8 = x;
-            statusOp_write(&(pAstCfg->xDec[z].decodeStatus.sourceDecode),
-                           &tempVar8,
-                           sizeof(Int8),
-                           GATEMP_INDEX_DEC);
+            sharedMemWriteInt8(&(pAstCfg->xDec[z].decodeStatus.sourceDecode),
+                               tempVar8, GATEMP_INDEX_DEC);
         }
-#else
-        if (pAstCfg->xDec[z].decodeStatus.mode) 
-        {
-            pAstCfg->xDec[z].decodeStatus.sourceDecode = x;
-        }
-#endif
     }
     
     return 0;
@@ -4109,3 +3640,43 @@ void as_traceChannels(PAF_AST_Config *pC, int z)
     }
 }
 #endif
+
+// Compute decoder frame length based on selected source
+static Int getFrameLengthSourceSel(
+    const PAF_ASIT_Params *pP, 
+    Int8 sourceSelect
+)
+{
+    Int frameLength;
+    
+    switch(sourceSelect)
+    {
+        case PAF_SOURCE_PCM:
+            frameLength = FRAMELENGTH;
+            break;
+        case PAF_SOURCE_AAC:
+            frameLength = 1024;
+            break;
+        case PAF_SOURCE_AC3: 
+        case PAF_SOURCE_DDP: 
+            frameLength = ASIP_FRAMELEN_SS_DDP_AC3;
+            break;
+        case PAF_SOURCE_THD:
+            frameLength = ASIP_FRAMELEN_SS_THD;
+            break;
+        case PAF_SOURCE_DTS:
+        case PAF_SOURCE_DTSHD:
+        case PAF_SOURCE_DTS12:
+        case PAF_SOURCE_DTS13:
+        case PAF_SOURCE_DTS14:
+        case PAF_SOURCE_DTS16:
+        case PAF_SOURCE_DTSALL:
+            frameLength = ASIP_FRAMELEN_SS_DTS;
+            break;
+        default:
+            frameLength = ASIP_FRAMELEN_SS_DEFAULT;
+            break;
+    }
+    
+    return frameLength;
+}