fix invalid parameter type

Makefile

@@ -3,6 +3,7 @@
 # This Makefile is meant for cross compiling the BaS with Vincent Riviere's cross compilers.
 # If you want to compile native on an Atari (you will need at least GCC 4.6.3), set
 # TCPREFIX to be empty.
+#
 # If you want to compile with the m68k-elf- toolchain, set TCPREFIX accordingly. Requires an extra
 # installation, but allows source level debugging over BDM with a recent gdb (tested with 7.5),
 # the m68k BDM tools from sourceforge (http://bdm.sourceforge.net) and a BDM pod (TBLCF and P&E tested).

flash/s19reader.c

@@ -326,7 +326,7 @@ static err_t flash(uint8_t *dst, uint8_t *src, uint32_t length)
 /*
  * this callback verifies the data against the S-record file contents after a write to destination
  */
-static err_t verify(uint8_t *dst, uint8_t *src, uint32_t length)
+static err_t verify(uint8_t *dst, uint8_t *src, size_t length)
 {
     uint8_t *end = src + length;