ao486: suport for shared folder.

MiSTer.ini

@@ -120,7 +120,7 @@ sniper_mode=0
 ; 0 - disable MiSTer logo in Menu core
 logo=1
 
-; Custom shared folder for core supporting this feature (currently minimig only)
+; Custom shared folder for core supporting this feature (currently minimig and ao486 only)
 ; Can be relative to core's home dir or absolute path.
 ; Path must exist before core start to use it, or it will fail.
 ; Make sure USB device is mounted before use shared folder on USB!

MiSTer.vcxproj

@@ -95,6 +95,7 @@
     <ClCompile Include="support\snes\snes.cpp" />
     <ClCompile Include="support\st\st_tos.cpp" />
     <ClCompile Include="support\x86\x86.cpp" />
+    <ClCompile Include="support\x86\x86_share.cpp" />
     <ClCompile Include="sxmlc.c" />
     <ClCompile Include="user_io.cpp" />
     <ClCompile Include="video.cpp" />
@@ -156,6 +157,7 @@
     <ClInclude Include="support\snes\snes.h" />
     <ClInclude Include="support\st\st_tos.h" />
     <ClInclude Include="support\x86\x86.h" />
+    <ClInclude Include="support\x86\x86_share.h" />
     <ClInclude Include="sxmlc.h" />
     <ClInclude Include="user_io.h" />
     <ClInclude Include="video.h" />

MiSTer.vcxproj.filters

@@ -199,6 +199,9 @@
     <ClCompile Include="support\minimig\minimig_share.cpp">
       <Filter>Source Files\support</Filter>
     </ClCompile>
+    <ClCompile Include="support\x86\x86_share.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="battery.h">
@@ -378,5 +381,8 @@
     <ClInclude Include="support\minimig\miminig_fs_messages.h">
       <Filter>Header Files\support</Filter>
     </ClInclude>
+    <ClInclude Include="support\x86\x86_share.h">
+      <Filter>Header Files\support</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>

support/x86/x86.cpp

@@ -690,6 +690,7 @@ void x86_init()
 
 	for(unsigned int i=0; i<sizeof(cmos)/sizeof(unsigned int); i++) IOWR(RTC_BASE, i, cmos[i]);
 
+	x86_share_reset();
 	user_io_8bit_set_status(0, UIO_STATUS_RESET);
 }
 
@@ -710,6 +711,8 @@ void x86_poll()
 	uint32_t cpu_clock = cpu_get_clock();
 	if (cpu_clock != old_cpu_clock) set_clock();
 
+	x86_share_poll();
+
 	char sd_req = dma_sdio(0);
 	if (sd_req == 1)
 	{

support/x86/x86_share.h

@@ -0,0 +1,10 @@
+
+#ifndef __MINIMIG_SHARE_H__
+#define __MINIMIG_SHARE_H__
+
+#include <stdint.h>
+
+void x86_share_poll();
+void x86_share_reset();
+
+#endif