Support for TZX tape format.

MiSTer.vcxproj

@@ -56,6 +56,7 @@
     <ClCompile Include="osd.c" />
     <ClCompile Include="spi.c" />
     <ClCompile Include="tos.c" />
+    <ClCompile Include="tzx2wav.c" />
     <ClCompile Include="user_io.c" />
     <ClCompile Include="x86.c" />
   </ItemGroup>
@@ -85,6 +86,7 @@
     <ClInclude Include="osd.h" />
     <ClInclude Include="spi.h" />
     <ClInclude Include="tos.h" />
+    <ClInclude Include="tzx2wav.h" />
     <ClInclude Include="user_io.h" />
     <ClInclude Include="x86.h" />
   </ItemGroup>

MiSTer.vcxproj.filters

@@ -68,6 +68,9 @@
     <ClCompile Include="x86.c">
       <Filter>Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="tzx2wav.c">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="archie.h">
@@ -151,6 +154,9 @@
     <ClInclude Include="x86.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="tzx2wav.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <None Include="build.sh" />

tzx2wav.h

@@ -0,0 +1,3 @@
+#include "file_io.h"
+
+int tzx2csw(fileTYPE *f);

user_io.c

@@ -20,6 +20,7 @@
 #include "config.h"
 #include "menu.h"
 #include "x86.h"
+#include "tzx2wav.h"
 
 #define BREAK  0x8000
 
@@ -656,20 +657,32 @@ int user_io_file_tx(char* name, unsigned char index)
 	spi8(0xff);
 	DisableFpga();
 
-	while (bytes2send)
+	if (strlen(f.name) > 4 && !strcasecmp(f.name + strlen(f.name) - 4, ".tzx"))
 	{
-		iprintf(".");
-
-		uint16_t chunk = (bytes2send>512) ? 512 : bytes2send;
-
-		FileReadSec(&f, buf);
-
+		printf("Processing TZX...\n");
+		
 		EnableFpga();
 		spi8(UIO_FILE_TX_DAT);
-		spi_write(buf, chunk, fio_size);
+		tzx2csw(&f);
 		DisableFpga();
+	}
+	else
+	{
+		while (bytes2send)
+		{
+			iprintf(".");
 
-		bytes2send -= chunk;
+			uint16_t chunk = (bytes2send > 512) ? 512 : bytes2send;
+
+			FileReadSec(&f, buf);
+
+			EnableFpga();
+			spi8(UIO_FILE_TX_DAT);
+			spi_write(buf, chunk, fio_size);
+			DisableFpga();
+
+			bytes2send -= chunk;
+		}
 	}
 
 	FileClose(&f);