X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2FSDCCmem.c;h=b1e192e0169790a8ed915d7e3451b97fc4d00d47;hb=2fa210072055dd1d0dccd08192a6a6039d3ef8b9;hp=e4f60ba7ac33e110313389871433f9b51dd072eb;hpb=d0654a8f79791ae227ac282b273640c476802e60;p=fw%2Fsdcc

diff --git a/src/SDCCmem.c b/src/SDCCmem.c
index e4f60ba7..b1e192e0 100644
--- a/src/SDCCmem.c
+++ b/src/SDCCmem.c
@@ -104,7 +104,12 @@ initMem ()
      DEBUG-NAME     -   'B'
      POINTER-TYPE   -   POINTER
    */
-  istack = allocMap (0, 0, 0, 0, 0, 0, options.stack_loc, ISTACK_NAME, 'B', POINTER);
+  if (ISTACK_NAME) {
+    istack = allocMap (0, 0, 0, 0, 0, 0, options.stack_loc, 
+		       ISTACK_NAME, 'B', POINTER);
+  } else {
+    istack=NULL;
+  }
 
   /* code  segment ;   
      SFRSPACE       -   NO
@@ -164,7 +169,11 @@ initMem ()
      DEBUG-NAME     -   'E'
      POINTER-TYPE   -   POINTER
    */
-  overlay = allocMap (0, 0, 0, 1, 0, 0, options.data_loc, DATA_NAME, 'E', POINTER);
+  if (OVERLAY_NAME) {
+    overlay = allocMap (0, 0, 0, 1, 0, 0, options.data_loc, DATA_NAME, 'E', POINTER);
+  } else {
+    overlay = NULL;
+  }
 
   /* Xternal Data segment - 
      SFRSPACE       -   NO
@@ -190,7 +199,12 @@ initMem ()
      DEBUG-NAME     -   'G'
      POINTER-TYPE   -   IPOINTER
    */
-  idata = allocMap (0, 0, 0, 0, 0, 0, options.idata_loc, IDATA_NAME, 'G', IPOINTER);
+  if (IDATA_NAME) {
+    idata = allocMap (0, 0, 0, 0, 0, 0, options.idata_loc, 
+		      IDATA_NAME, 'G', IPOINTER);
+  } else {
+    idata=NULL;
+  }
 
   /* Static segment (code for variables );
      SFRSPACE       -   NO
@@ -830,6 +844,8 @@ allocVariables (symbol * symChain)
 	  /* if register bank specified then update maxRegBank */
 	  if (maxRegBank < FUNC_REGBANK (csym->type))
 	    maxRegBank = FUNC_REGBANK (csym->type);
+	  /*JCF: Mark the register bank as used*/
+      RegBankUsed[FUNC_REGBANK(csym->type)]=1;
 	}
 
       /* if this is a extern variable then change the */
@@ -1063,6 +1079,10 @@ canOverlayLocals (eBBlock ** ebbs, int count)
 void 
 doOverlays (eBBlock ** ebbs, int count)
 {
+  if (!overlay) {
+    return;
+  }
+
   /* check if the parameters and local variables
      of this function can be put in the overlay segment
      This check is essentially to see if the function
@@ -1100,4 +1120,5 @@ printAllocInfo (symbol * func, FILE * of)
   printAllocInfoSeg (idata, func, of);
   printAllocInfoSeg (sfr, func, of);
   printAllocInfoSeg (sfrbit, func, of);
+  fprintf (of, ";------------------------------------------------------------\n");
 }