some fixes:

- use Malloc, Realloc instead of malloc, realloc
- generate common for un-initialized bss
- removed null-reference

util/ceg/EM_parser/common/action.c

@@ -1,6 +1,5 @@
 #include "decl.h"
 #include <alloc.h>
-extern char *malloc(), *realloc(), *Salloc();
 
 /* This file contains some routines needed in "pars.g" to handle the  action-
  * grammarrule. The assembler-instructions are handeld in blocks rather than
@@ -24,7 +23,7 @@ init_as_block()
 
 	if ( quantum == 0) {
 		quantum = 16;
-		as_instructions = (char **)malloc( quantum*sizeof( char *));
+		as_instructions = (char **)Malloc( quantum*sizeof( char *));
 	}
 }
 
@@ -37,7 +36,7 @@ char *instr;
 {
 	if ( nr_instr == quantum) {
 		quantum *= 2;
-		as_instructions = (char **) realloc( as_instructions,
+		as_instructions = (char **) Realloc( as_instructions,
 					   quantum*sizeof( char *));
 	}
 

util/ceg/EM_parser/common/default.c

@@ -196,7 +196,7 @@ handle_defaults()
 				 * ponding C_con_xxx C_rom_xxx instruction
 				 * so set correct info.
 				 */
-				set_C_instr_info( def_info[i-2].name);
+				set_C_instr_info( def_info[(i>>2)<<2].name);
 				def_row();
 				out( "}\n\n");
 			}
@@ -244,8 +244,7 @@ extnd_header()
  */
 {
 	out( "if ( %s == 0 ) {\n", C_instr_info->arg_id[3]);
-	set_segment( SEGBSS);
-	out( "bss( %s);\n", C_instr_info->arg_id[0]);
+	out( "common( %s);\n", C_instr_info->arg_id[0]);
 	out( "}\nelse {\n");
 	set_segment( SEGCON);
 	out( "for ( %s = 0; %s < %s/EM_WSIZE; %s++)\n",

util/ceg/EM_parser/common/pars.g

@@ -169,7 +169,7 @@ c_row	: %if ( to_change && strcmp( yytext, to_change) == 0)
 	| C_INSTR
 	  [ c_special | c_simple]
 
-	| %if ( strcmp( yytext, to_change) == 0)
+	| %if ( to_change && strcmp( yytext, to_change) == 0)
 	  DEF_C_INSTR		{ init_defaults( yytext);}
 	  [ Dspecial | Dsimple] { handle_defaults();}