3 files changed, 3 insertions, 3 deletions

diff --git a/apps/plugins/zxbox/snapshot.c b/apps/plugins/zxbox/snapshot.c
index 468f46667e..74845bac8e 100644
--- a/apps/plugins/zxbox/snapshot.c
+++ b/apps/plugins/zxbox/snapshot.c
@@ -362,7 +362,7 @@ static void read_compressed_data(SNFILE *fp, byte *start, unsigned size,
     GET_DATA(ch);
     if(p + times > end) {
       put_msg("Warning: Repeat parameter too large in snapshot");
-      times = (int) ((long) end - (long) p);
+      times = (int) ((intptr_t) end - (intptr_t) p);
     }
     for(j = 0; j < times; j++) *p++ = ch;
       }
diff --git a/apps/plugins/zxbox/tapefile.c b/apps/plugins/zxbox/tapefile.c
index b030f8dab9..054cae1aba 100644
--- a/apps/plugins/zxbox/tapefile.c
+++ b/apps/plugins/zxbox/tapefile.c
@@ -216,7 +216,7 @@ static struct tzxblock tzxb[NUMBLOCKID] = {
 };
 
 
-#define PTRDIFF(pe, ps) ((int) (((long) (pe) - (long) (ps)) / sizeof(*pe)))
+#define PTRDIFF(pe, ps) pe - ps
 
 static char tzxheader[] = {'Z','X','T','a','p','e','!',0x1A};
 
diff --git a/apps/plugins/zxbox/z80.c b/apps/plugins/zxbox/z80.c
index f6f1de7468..683584f471 100644
--- a/apps/plugins/zxbox/z80.c
+++ b/apps/plugins/zxbox/z80.c
@@ -48,7 +48,7 @@ static byte *a64kmalloc(int num64ksegs)
     /*exit(1);*/
   }
 
-  return (byte *) (( (long) bigmem & ~((long) 0xFFFF)) + 0x10000);
+  return (byte *) (( (intptr_t) bigmem & ~((intptr_t) 0xFFFF)) + 0x10000);
 }