diff --git a/Pico/carthw/carthw.c b/Pico/carthw/carthw.c
index d22a2357..eab13b8e 100644
--- a/Pico/carthw/carthw.c
+++ b/Pico/carthw/carthw.c
@@ -1,12 +1,18 @@
 /*
- * should better do some pointer stuff here. But as none of these bankswitch
+ * Support for a few cart mappers.
+ *
+ * (c) Copyright 2008, Grazvydas "notaz" Ignotas
+ * Free for non-commercial use.
+ *
+ *
+ * I should better do some pointer stuff here. But as none of these bankswitch
  * while the game runs, memcpy will suffice.
  */
 
 #include "../PicoInt.h"
 
 
-/* 12-in-1 and 4-in-1. Assuming 2MB ROMs here. */
+/* 12-in-1 and 4-in-1. Assuming >= 2MB ROMs here. */
 static unsigned int carthw_12in1_baddr = 0;
 
 static carthw_state_chunk carthw_12in1_state[] =
@@ -110,7 +116,7 @@ static void carthw_realtec_write8(unsigned int a, unsigned int d, int realsize)
 	}
 	else
 		elprintf(EL_ANOMALY, "realtec: unexpected write [%06x] %02x @ %06x", a, d, SekPc);
-	
+
 	if (realtec_bank >= 0 && realtec_size >= 0 &&
 		(realtec_bank != bank_old || realtec_size != size_old))
 	{
diff --git a/Pico/carthw/svp/Memory.c b/Pico/carthw/svp/Memory.c
index 2a491395..e835d328 100644
--- a/Pico/carthw/svp/Memory.c
+++ b/Pico/carthw/svp/Memory.c
@@ -1,4 +1,4 @@
-// The SVP chip emulator
+// The SVP chip emulator, mem I/O stuff
 
 // (c) Copyright 2008, Grazvydas "notaz" Ignotas
 // Free for non-commercial use.
diff --git a/Pico/carthw/svp/compiler.c b/Pico/carthw/svp/compiler.c
index 911da179..7c06badb 100644
--- a/Pico/carthw/svp/compiler.c
+++ b/Pico/carthw/svp/compiler.c
@@ -1,3 +1,7 @@
+// SSP1601 to ARM recompiler
+
+// (c) Copyright 2008, Grazvydas "notaz" Ignotas
+// Free for non-commercial use.
 
 #include "../../PicoInt.h"
 #include "compiler.h"
diff --git a/Pico/carthw/svp/gen_arm.c b/Pico/carthw/svp/gen_arm.c
index 00d5d2cf..89db6a98 100644
--- a/Pico/carthw/svp/gen_arm.c
+++ b/Pico/carthw/svp/gen_arm.c
@@ -1,3 +1,8 @@
+// Basic macros to emit ARM instructions and some utils
+
+// (c) Copyright 2008, Grazvydas "notaz" Ignotas
+// Free for non-commercial use.
+
 #define EMIT(x) *tcache_ptr++ = x
 
 #define A_R4M  (1 << 4)
diff --git a/Pico/carthw/svp/stub_arm.S b/Pico/carthw/svp/stub_arm.S
index cbfa52eb..debcc0e8 100644
--- a/Pico/carthw/svp/stub_arm.S
+++ b/Pico/carthw/svp/stub_arm.S
@@ -1,5 +1,10 @@
 @ vim:filetype=armasm
 
+@ Compiler helper functions and some SVP HLE code
+
+@ (c) Copyright 2008, Grazvydas "notaz" Ignotas
+@ Free for non-commercial use.
+
 .if 0
 #include "compiler.h"
 .endif