Erase added to flasher

Firmware/AppleIISd.vcxproj

@@ -11,8 +11,8 @@
     </ProjectConfiguration>
   </ItemGroup>
   <ItemGroup>
-    <None Include="..\AppleIISd.bin.map" />
     <None Include="..\README.md" />
+    <None Include="AppleIISd.bin.map" />
     <None Include="makefile" />
     <None Include="Makefile.options" />
     <None Include="obj\AppleIISd.lst" />

Firmware/AppleIISd.vcxproj.filters

@@ -23,7 +23,7 @@
     </None>
     <None Include="Makefile.options" />
     <None Include="..\README.md" />
-    <None Include="..\AppleIISd.bin.map" />
+    <None Include="AppleIISd.bin.map" />
   </ItemGroup>
   <ItemGroup>
     <Filter Include="src">

Software/src/Flasher.c

@@ -28,9 +28,11 @@ uint8 buffer[2048] = { 0 };
 
 int main()
 {
-    int retval = 0;
+    int retval = 1;
     FILE* pFile;
     char slotNum;
+    boolean erase = FALSE;
+    uint16 fileSize = 0;
 
     APPLE_II_SD_T* pAIISD = (APPLE_II_SD_T*)SLOT_IO_START;
     uint8* pSlotRom = SLOT_ROM_START;
@@ -39,7 +41,7 @@ int main()
     videomode(VIDEOMODE_40COL);
     clrscr();
     cprintf("AppleIISd firmware flasher\r\n");
-    cprintf("(c) 2019 Florian Reitz\r\n\r\n");
+    cprintf("(c) 2019-2020 Florian Reitz\r\n\r\n");
     
     // ask for slot
     cursor(1);      // enable blinking cursor
@@ -48,6 +50,18 @@ int main()
     slotNum -= 0x30;
     cursor(0);      // disable blinking cursor
 
+    if(slotNum == 0)
+    {
+        // erase device
+        erase = TRUE;
+        // ask for slot
+        cursor(1);      // enable blinking cursor
+        cprintf("Erase device in slot number (1-7): ");
+        cscanf("%c", &slotNum);
+        slotNum -= 0x30;
+        cursor(0);      // disable blinking cursor
+    }
+
     // check if slot is valid
     if((slotNum < 1) || (slotNum > 7))
     {
@@ -59,15 +73,34 @@ int main()
     ((uint8*)pAIISD) += slotNum << 4;
     pSlotRom += slotNum << 8;
 
+    if(erase)
+    {
+        // buffer is already filled with 0
+        fileSize = 2048;
+    }
+    else
+    {
         // open file
         pFile = fopen(BIN_FILE_NAME, "rb");
         if(pFile)
         {
             // read buffer
-        uint16 fileSize = fread(buffer, 1, sizeof(buffer), pFile);
+            fileSize = fread(buffer, 1, sizeof(buffer), pFile);
             fclose(pFile);
             pFile = NULL;
 
+            if(fileSize != 2048)
+            {
+                cprintf("\r\nWrong file size: %d\r\n", fileSize);
+            }
+        }
+        else
+        {
+            cprintf("\r\nCan't open %s file\r\n", BIN_FILE_NAME);
+            fileSize = 0;
+        }
+    }
+
     if(fileSize == 2048)
     {
         // enable write
@@ -85,31 +118,13 @@ int main()
             if(writeChip(buffer + 256, pExtRom, fileSize - 256))
             {
                 cprintf("\r\n\r\nFlashing finished!\n");
+                retval = 0;
             }
-                else
-                {
-                    retval = 1;
-                }
-            }
-            else
-            {
-                retval = 1;
         }
 
         // disable write
         pAIISD->status.pgmen = 0;
     }
-        else
-        {
-            cprintf("\r\nWrong file size: %d\r\n", fileSize);
-            retval = 1;
-        }
-    }
-    else
-    {
-        cprintf("\r\nCan't open %s file\r\n", BIN_FILE_NAME);
-        retval = 1;
-    }
 
     cgetc();
     return retval;