#include "log.h"
#include "applevideo.h" // For message spawning... Though there's probably a better approach than this!
-using namespace std;
+//using namespace std;
// Useful enums
0x0, 0x7, 0xE, 0x6, 0xD, 0x5, 0xC, 0x4, 0xB, 0x3, 0xA, 0x2, 0x9, 0x1, 0x8, 0xF };
uint8 FloppyDrive::poSector[16] = {
0x0, 0x8, 0x1, 0x9, 0x2, 0xA, 0x3, 0xB, 0x4, 0xC, 0x5, 0xD, 0x6, 0xE, 0x7, 0xF };
+char FloppyDrive::nameBuf[MAX_PATH];
// FloppyDrive class implementation...
diskSize[0] = diskSize[1] = 0;
diskType[0] = diskType[1] = DT_UNKNOWN;
imageDirty[0] = imageDirty[1] = false;
+ writeProtected[0] = writeProtected[1] = false;
imageName[0][0] = imageName[1][0] = 0; // Zero out filenames
}
bool FloppyDrive::LoadImage(const char * filename, uint8 driveNum/*= 0*/)
{
+ WriteLog("FLOPPY: Attempting to load image '%s' in drive #%u.\n", filename, driveNum);
+
if (driveNum > 1)
{
WriteLog("FLOPPY: Attempted to load image to drive #%u!\n", driveNum);
DetectImageType(filename, driveNum);
strcpy(imageName[driveNum], filename);
+#if 0
+ WriteLog("FLOPPY: Opening image for drive #%u.\n", driveNum);
+ FILE * fp2 = fopen("bt-nybblized.nyb", "wb");
+
+ if (fp2 == NULL)
+ WriteLog("FLOPPY: Failed to open image file 'bt-nybblized.nyb' for writing...\n");
+ else
+ {
+ fwrite(nybblizedImage[driveNum], 1, 232960, fp2);
+ fclose(fp2);
+ }
+#endif
+//writeProtected[driveNum] = true;
+ WriteLog("FLOPPY: Loaded image '%s' for drive #%u.\n", filename, driveNum);
+
return true;
}
fwrite(disk[driveNum], 1, diskSize[driveNum], fp);
fclose(fp);
+ WriteLog("FLOPPY: Successfully wrote image file '%s'...\n", imageName[driveNum]);
+
return true;
}
memset(nybblizedImage[driveNum], 0x00, 232960); // Set it to 0 instead of $FF for proper formatting...
diskType[driveNum] = DT_DOS33;
strcpy(imageName[driveNum], "newblank.dsk");
+ writeProtected[driveNum] = false;
SpawnMessage("New blank image inserted in drive %u...", driveNum);
}
uint8 imageDirtyTmp = imageDirty[0];
imageDirty[0] = imageDirty[1];
imageDirty[1] = imageDirtyTmp;
+
+ uint8 writeProtectedTmp = writeProtected[0];
+ writeProtected[0] = writeProtected[1];
+ writeProtected[1] = writeProtectedTmp;
SpawnMessage("Drive 0: %s...", imageName[0]);
}
//*/
}
+// Actually, it just might matter WRT to nybblyzing/denybblyzing
+// Here, we check for BT3
+//Nope, no change...
+//diskType[driveNum] = DT_PRODOS;
+
NybblizeImage(driveNum);
}
+
+#warning "Should we attempt to nybblize unknown images here? Definitely SHOULD issue a warning!"
+
WriteLog("FLOPPY: Detected image type %s...\n", (diskType[driveNum] == DT_NYBBLE ?
"Nybble image" : (diskType[driveNum] == DT_DOS33 ?
"DOS 3.3 image" : (diskType[driveNum] == DT_PRODOS ? "ProDOS image" : "unknown"))));
// Using a lookup table, convert the 6-bit bytes into disk bytes.
for(uint16 i=0; i<343; i++)
+//#define TEST_NYBBLIZATION
+#ifdef TEST_NYBBLIZATION
+{
+WriteLog("FL: i = %u, img[i] = %02X, diskbyte = %02X\n", i, img[i], diskbyte[img[i] >> 2]);
+#endif
img[i] = diskbyte[img[i] >> 2];
-
+#ifdef TEST_NYBBLIZATION
+//WriteLog(" img[i] = %02X\n", img[i]);
+}
+#endif
img += 343;
// Done with the nybblization, now for the epilogue...
}
}
+const char * FloppyDrive::GetImageName(uint8 driveNum/*= 0*/)
+{
+ // Set up a zero-length string for return value
+ nameBuf[0] = 0;
+
+ if (driveNum > 1)
+ {
+ WriteLog("FLOPPY: Attempted to get image name for drive #%u!\n", driveNum);
+ return nameBuf;
+ }
+
+ // Now we attempt to strip out extraneous paths/extensions to get just the filename
+ const char * startOfFile = strrchr(imageName[driveNum], '/');
+ const char * startOfExt = strrchr(imageName[driveNum], '.');
+
+ // If there isn't a path, assume we're starting at the beginning
+ if (startOfFile == NULL)
+ startOfFile = &imageName[driveNum][0];
+ else
+ startOfFile++;
+
+ // If there isn't an extension, assume it's at the terminating NULL
+ if (startOfExt == NULL)
+ startOfExt = &imageName[driveNum][0] + strlen(imageName[driveNum]);
+
+ // Now copy the filename (may copy nothing!)
+ int j = 0;
+
+ for(const char * i=startOfFile; i<startOfExt; i++)
+ nameBuf[j++] = *i;
+
+ nameBuf[j] = 0;
+
+ return nameBuf;
+}
+
+void FloppyDrive::EjectImage(uint8 driveNum/*= 0*/)
+{
+ // Probably want to save a dirty image... ;-)
+ SaveImage(driveNum);
+
+ WriteLog("FLOPPY: Ejected image file '%s' from drive %u...\n", imageName[driveNum], driveNum);
+
+ if (disk[driveNum])
+ delete[] disk[driveNum];
+
+ disk[driveNum] = NULL;
+ diskSize[driveNum] = 0;
+ diskType[driveNum] = DT_UNKNOWN;
+ imageDirty[driveNum] = false;
+ writeProtected[driveNum] = false;
+ imageName[driveNum][0] = 0; // Zero out filenames
+ memset(nybblizedImage[driveNum], 0xFF, 232960); // Doesn't matter if 00s or FFs...
+}
+
+bool FloppyDrive::DriveIsEmpty(uint8 driveNum/*= 0*/)
+{
+ if (driveNum > 1)
+ {
+ WriteLog("FLOPPY: Attempted DriveIsEmtpy() for drive #%u!\n", driveNum);
+ return true;
+ }
+
+ // This is kinda gay, but it works
+ return (imageName[driveNum][0] == 0 ? true : false);
+}
+
+bool FloppyDrive::DiskIsWriteProtected(uint8 driveNum/*= 0*/)
+{
+ if (driveNum > 1)
+ {
+ WriteLog("FLOPPY: Attempted DiskIsWriteProtected() for drive #%u!\n", driveNum);
+ return true;
+ }
+
+ return writeProtected[driveNum];
+}
+
+void FloppyDrive::SetWriteProtect(bool state, uint8 driveNum/*= 0*/)
+{
+ if (driveNum > 1)
+ {
+ WriteLog("FLOPPY: Attempted set write protect for drive #%u!\n", driveNum);
+ return;
+ }
+
+ writeProtected[driveNum] = state;
+}
+
+
// Memory mapped I/O functions
/*
uint8 FloppyDrive::ReadWrite(void)
{
-SpawnMessage("%sing %s track %u, sector %u...", (ioMode == IO_MODE_READ ? "Read" : "Write"),
+SpawnMessage("%u:%sing %s track %u, sector %u...", activeDrive,
+ (ioMode == IO_MODE_READ ? "Read" : "Write"),
(ioMode == IO_MODE_READ ? "from" : "to"), track, currentPos / 396);
// $C0EC
/*
*/
if (ioMode == IO_MODE_WRITE && (latchValue & 0x80))
{
- nybblizedImage[activeDrive][(track * 6656) + currentPos] = latchValue;
- imageDirty[activeDrive] = true;
+ // Does it behave like this?
+#warning "Write protection kludged in--investigate real behavior!"
+ if (!writeProtected[activeDrive])
+ {
+ nybblizedImage[activeDrive][(track * 6656) + currentPos] = latchValue;
+ imageDirty[activeDrive] = true;
+ }
+ else
+//doesn't seem to do anything
+ return 0;//is this more like it?
}
uint8 diskByte = nybblizedImage[activeDrive][(track * 6656) + currentPos];
currentPos = (currentPos + 1) % 6656;
+//WriteLog("FL: diskByte=%02X, currentPos=%u\n", diskByte, currentPos);
return diskByte;
}
// $C0EF
ioMode = IO_MODE_WRITE;
}
+
+/*
+PRODOS 8 MLI ERROR CODES
+
+$00: No error
+$01: Bad system call number
+$04: Bad system call parameter count
+$25: Interrupt table full
+$27: I/O error
+$28: No device connected
+$2B: Disk write protected
+$2E: Disk switched
+$40: Invalid pathname
+$42: Maximum number of files open
+$43: Invalid reference number
+$44: Directory not found
+$45: Volume not found
+$46: File not found
+$47: Duplicate filename
+$48: Volume full
+$49: Volume directory full
+$4A: Incompatible file format, also a ProDOS directory
+$4B: Unsupported storage_type
+$4C: End of file encountered
+$4D: Position out of range
+$4E: File access error, also file locked
+$50: File is open
+$51: Directory structure damaged
+$52: Not a ProDOS volume
+$53: Invalid system call parameter
+$55: Volume Control Block table full
+$56: Bad buffer address
+$57: Duplicate volume
+$5A: File structure damaged
+*/
projects / apple2 / blobdiff