diff --git a/cfg/sym1-32k.cfg b/cfg/sym1-32k.cfg
index 14ddfb98f..0665c8cf2 100644
--- a/cfg/sym1-32k.cfg
+++ b/cfg/sym1-32k.cfg
@@ -22,10 +22,10 @@ SYMBOLS {
 }
 
 MEMORY {
-	ZP:		start = $0000,  size = $00F7,                      define = yes,   file = %O;
+        ZP:             start = $0000,  size = $00F7,                      define = yes,   file = %O;
         CPUSTACK:       start = $0100,  size = $0100,                      define = yes;
         RAM:            start = %S,     size = $8000 - %S - __STACKSIZE__, define = yes,   file = %O;
-        MONROM:		start = $8000,  size = $1000,                      define = yes;
+        MONROM:         start = $8000,  size = $1000,                      define = yes;
         EXT:            start = $9000,  size = $1000,                      define = yes;
         IO:             start = $A000,  size = $1000,                      define = yes;
         RAE1:           start = $B000,  size = $1000,                      define = yes;
@@ -35,8 +35,8 @@ MEMORY {
 }
 
 SEGMENTS {
-	ZEROPAGE:	load = ZP,      type = zp,                         define = yes;
-	STARTUP:	load = RAM,     type = ro,                         define = yes;
+        ZEROPAGE:       load = ZP,      type = zp,                         define = yes;
+        STARTUP:        load = RAM,     type = ro,                         define = yes;
         CODE:           load = RAM,     type = ro,                         define = yes;
         RODATA:         load = RAM,     type = ro,                         define = yes;
         ONCE:           load = RAM,     type = ro,                         define = yes;
diff --git a/cfg/sym1-4k.cfg b/cfg/sym1-4k.cfg
index 240d7bc82..de1be0b8a 100644
--- a/cfg/sym1-4k.cfg
+++ b/cfg/sym1-4k.cfg
@@ -22,10 +22,10 @@ SYMBOLS {
 }
 
 MEMORY {
-	ZP:		start = $0000,  size = $00F7,                      define = yes,   file = %O;
+        ZP:             start = $0000,  size = $00F7,                      define = yes,   file = %O;
         CPUSTACK:       start = $0100,  size = $0100,                      define = yes;
         RAM:            start = %S,     size = $1000 - %S - __STACKSIZE__, define = yes,   file = %O;
-        MONROM:		start = $8000,  size = $1000,                      define = yes;
+        MONROM:         start = $8000,  size = $1000,                      define = yes;
         EXT:            start = $9000,  size = $1000,                      define = yes;
         IO:             start = $A000,  size = $1000,                      define = yes;
         RAE1:           start = $B000,  size = $1000,                      define = yes;
@@ -35,8 +35,8 @@ MEMORY {
 }
 
 SEGMENTS {
-	ZEROPAGE:	load = ZP,      type = zp,                         define = yes;
-	STARTUP:	load = RAM,     type = ro,                         define = yes;
+        ZEROPAGE:       load = ZP,      type = zp,                         define = yes;
+        STARTUP:        load = RAM,     type = ro,                         define = yes;
         CODE:           load = RAM,     type = ro,                         define = yes;
         RODATA:         load = RAM,     type = ro,                         define = yes;
         ONCE:           load = RAM,     type = ro,                         define = yes;
diff --git a/cfg/sym1.cfg b/cfg/sym1.cfg
index 240d7bc82..de1be0b8a 100644
--- a/cfg/sym1.cfg
+++ b/cfg/sym1.cfg
@@ -22,10 +22,10 @@ SYMBOLS {
 }
 
 MEMORY {
-	ZP:		start = $0000,  size = $00F7,                      define = yes,   file = %O;
+        ZP:             start = $0000,  size = $00F7,                      define = yes,   file = %O;
         CPUSTACK:       start = $0100,  size = $0100,                      define = yes;
         RAM:            start = %S,     size = $1000 - %S - __STACKSIZE__, define = yes,   file = %O;
-        MONROM:		start = $8000,  size = $1000,                      define = yes;
+        MONROM:         start = $8000,  size = $1000,                      define = yes;
         EXT:            start = $9000,  size = $1000,                      define = yes;
         IO:             start = $A000,  size = $1000,                      define = yes;
         RAE1:           start = $B000,  size = $1000,                      define = yes;
@@ -35,8 +35,8 @@ MEMORY {
 }
 
 SEGMENTS {
-	ZEROPAGE:	load = ZP,      type = zp,                         define = yes;
-	STARTUP:	load = RAM,     type = ro,                         define = yes;
+        ZEROPAGE:       load = ZP,      type = zp,                         define = yes;
+        STARTUP:        load = RAM,     type = ro,                         define = yes;
         CODE:           load = RAM,     type = ro,                         define = yes;
         RODATA:         load = RAM,     type = ro,                         define = yes;
         ONCE:           load = RAM,     type = ro,                         define = yes;
diff --git a/samples/symDisplay.c b/samples/symDisplay.c
index 41eaf8b49..8a72d5863 100644
--- a/samples/symDisplay.c
+++ b/samples/symDisplay.c
@@ -43,7 +43,7 @@ void main (void) {
       if( (c >= '0') && (c <= '9') ) { // between 1 and 9 loops allowed
          z = 1;                        // a number was pressed 
          t = c - '0';                  // convert char to int
-	 puts( "\n\nLook at the front panel.\n" );
+         puts( "\n\nLook at the front panel.\n" );
       }
       else {
          puts( "\nWhat?" );
@@ -185,7 +185,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -198,7 +198,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -259,7 +259,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -272,7 +272,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -285,7 +285,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -298,7 +298,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -344,10 +344,10 @@ void main (void) {
                set_D6( DISP_BACKSLASH );
                break;
             default:
-	       displayable = 0;        // Character not mapped
+               displayable = 0;        // Character not mapped
          }
 
-	 if( displayable ) {
+         if( displayable ) {
 
             putchar( buffer[l] );      // Send it to the console
 
@@ -382,3 +382,4 @@ void main (void) {
 
    return;
 }
+
diff --git a/samples/symIO.c b/samples/symIO.c
index c52a71b11..d887c18b9 100644
--- a/samples/symIO.c
+++ b/samples/symIO.c
@@ -66,7 +66,7 @@ void main(void) {
          puts( "instructions again and type 'stop' to end the program.\n");
          puts( "Available registers:   DDR1A, IOR1A, DDR1B, IOR1B, DDR2A" );
          puts( "IOR2A, DDR2B, IOR2B, DDR3A, IOR3A, DDR3B and IOR3B." );
-	 instr = 0;
+         instr = 0;
       }
 
       printf( "\n Command:  " );
diff --git a/samples/symNotepad.c b/samples/symNotepad.c
index e9866e526..bc28ef4b5 100644
--- a/samples/symNotepad.c
+++ b/samples/symNotepad.c
@@ -99,21 +99,21 @@ void main(void) {
                p--;
             }
          }
-	 else if( c == 0x13 ) {        // Save
+         else if( c == 0x13 ) {        // Save
             puts( "\n========================= Save =========================" );
             puts( "\nPress any key to save." );
             c = getchar();
             for( l = 0; l <= p; l++ ) {
                tapio[l] = buffer[l];
             }
-	    l++;
+            l++;
             tapio[l] = 0x00;
             puts( "Saving to tape." );
             error = dumpt( 'N', (int) tapio, (int) tapio+p );
             if( error ) {
                puts( "\nTape error." );
             }
-	    else
+            else
             {
                putchar( '\r' );
                for( l = 0; l < 25; l++ ) {
@@ -196,3 +196,4 @@ void main(void) {
 
    return;
 }
+
diff --git a/samples/tutorial/sym1/symDisplay.c b/samples/tutorial/sym1/symDisplay.c
index 41eaf8b49..8a72d5863 100644
--- a/samples/tutorial/sym1/symDisplay.c
+++ b/samples/tutorial/sym1/symDisplay.c
@@ -43,7 +43,7 @@ void main (void) {
       if( (c >= '0') && (c <= '9') ) { // between 1 and 9 loops allowed
          z = 1;                        // a number was pressed 
          t = c - '0';                  // convert char to int
-	 puts( "\n\nLook at the front panel.\n" );
+         puts( "\n\nLook at the front panel.\n" );
       }
       else {
          puts( "\nWhat?" );
@@ -185,7 +185,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -198,7 +198,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -259,7 +259,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -272,7 +272,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -285,7 +285,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -298,7 +298,7 @@ void main (void) {
                set_D3( get_D4() );
                set_D4( get_D5() );
                set_D5( get_D6() );
-	       set_D6( DISP_M_1 );
+               set_D6( DISP_M_1 );
                for( d = 0; d < flashes ; d++ ) {
                   fdisp();             // Display
                }
@@ -344,10 +344,10 @@ void main (void) {
                set_D6( DISP_BACKSLASH );
                break;
             default:
-	       displayable = 0;        // Character not mapped
+               displayable = 0;        // Character not mapped
          }
 
-	 if( displayable ) {
+         if( displayable ) {
 
             putchar( buffer[l] );      // Send it to the console
 
@@ -382,3 +382,4 @@ void main (void) {
 
    return;
 }
+
diff --git a/samples/tutorial/sym1/symIO.c b/samples/tutorial/sym1/symIO.c
index c52a71b11..d887c18b9 100644
--- a/samples/tutorial/sym1/symIO.c
+++ b/samples/tutorial/sym1/symIO.c
@@ -66,7 +66,7 @@ void main(void) {
          puts( "instructions again and type 'stop' to end the program.\n");
          puts( "Available registers:   DDR1A, IOR1A, DDR1B, IOR1B, DDR2A" );
          puts( "IOR2A, DDR2B, IOR2B, DDR3A, IOR3A, DDR3B and IOR3B." );
-	 instr = 0;
+         instr = 0;
       }
 
       printf( "\n Command:  " );
diff --git a/samples/tutorial/sym1/symNotepad.c b/samples/tutorial/sym1/symNotepad.c
index e9866e526..bc28ef4b5 100644
--- a/samples/tutorial/sym1/symNotepad.c
+++ b/samples/tutorial/sym1/symNotepad.c
@@ -99,21 +99,21 @@ void main(void) {
                p--;
             }
          }
-	 else if( c == 0x13 ) {        // Save
+         else if( c == 0x13 ) {        // Save
             puts( "\n========================= Save =========================" );
             puts( "\nPress any key to save." );
             c = getchar();
             for( l = 0; l <= p; l++ ) {
                tapio[l] = buffer[l];
             }
-	    l++;
+            l++;
             tapio[l] = 0x00;
             puts( "Saving to tape." );
             error = dumpt( 'N', (int) tapio, (int) tapio+p );
             if( error ) {
                puts( "\nTape error." );
             }
-	    else
+            else
             {
                putchar( '\r' );
                for( l = 0; l < 25; l++ ) {
@@ -196,3 +196,4 @@ void main(void) {
 
    return;
 }
+