private void execReadSectorsTask() {
File file = this.ioFile;
long pos = this.ioFilePos;
if (this.debugLevel > 3) {
System.out.printf("GIDE io task: read track, pos=%d", pos);
}
if ((file != null) && (pos >= 0)) {
if (file.exists()) {
RandomAccessFile raf = null;
try {
raf = new RandomAccessFile(file, "r");
raf.seek(pos);
this.ioByteCnt = (int) raf.read(this.ioBuf, 0, this.ioByteCnt);
if (this.debugLevel > 3) {
System.out.printf("GIDE io task: read sector: %d read\n", this.ioByteCnt);
}
} catch (IOException ex) {
if (this.debugLevel > 3) {
System.out.println("GIDE io task: read sector: error");
}
if (!this.readErrShown) {
this.readErrShown = true;
EmuUtil.fireShowError(
this.owner,
"Die Festplattenabbilddatei kann nicht gelesen"
+ " werden.\n"
+ "Gegen\u00FCber dem emulierten System"
+ " wird jedoch kein Fehler signalisiert.",
ex);
}
} finally {
EmuUtil.doClose(raf);
}
} else {
EmuUtil.fireShowError(
this.owner,
"Die Festplattenabbilddatei existiert nicht und"
+ " kann deshalb auch nicht gelesen werden.\n"
+ "Gegen\u00FCber dem emulierten System"
+ " wird jedoch kein Fehler signalisiert.\n"
+ "Mit dem ersten Schreibzugriff auf das"
+ " emulierte Laufwerk wird die Abbilddatei"
+ " angelegt.",
null);
}
this.ioBufPos = 0;
this.statusReg |= STATUS_DATA_REQUEST;
fireInterrupt();
}
}
private void execFormatTrackTask() {
File file = this.ioFile;
long pos = this.ioFilePos;
int cnt = this.ioByteCnt;
if ((file != null) && (pos >= 0) && (cnt > 0)) {
boolean err = false;
RandomAccessFile raf = null;
try {
raf = new RandomAccessFile(file, "rw");
raf.seek(pos);
while (cnt > 0) {
raf.write(0);
--cnt;
}
raf.close();
raf = null;
} catch (IOException ex) {
err = true;
if (!this.writeErrShown) {
this.writeErrShown = true;
EmuUtil.fireShowError(this.owner, null, ex);
}
} finally {
EmuUtil.doClose(raf);
}
if (err) {
this.errorReg = ERROR_UNCORRECTABLE_DATA;
this.statusReg |= STATUS_ERROR;
}
fireInterrupt();
}
}
private void execWriteSectorsTask() {
File file = this.ioFile;
long pos = this.ioFilePos;
if (this.debugLevel > 3) {
System.out.printf("GIDE io task: write sector, pos=%d", pos);
}
if ((file != null) && (pos >= 0)) {
boolean err = false;
RandomAccessFile raf = null;
try {
raf = new RandomAccessFile(file, "rw");
raf.seek(pos);
raf.write(this.ioBuf, 0, SECTOR_SIZE);
raf.close();
raf = null;
} catch (IOException ex) {
err = true;
if (!this.writeErrShown) {
this.writeErrShown = true;
EmuUtil.fireShowError(this.owner, null, ex);
}
} finally {
EmuUtil.doClose(raf);
}
if (err) {
this.errorReg = ERROR_UNCORRECTABLE_DATA;
this.statusReg |= STATUS_ERROR;
if (this.debugLevel > 3) {
System.out.println("GIDE io task: write sector: error");
}
} else {
this.ioBufPos = 0;
countSector();
if (this.sectorCnt > 0) {
fireInterrupt();
} else {
this.statusReg = STATUS_SEEK_COMPLETE | STATUS_DRIVE_READY;
}
if (this.debugLevel > 3) {
System.out.println("GIDE io task: write sector: ok");
}
}
}
}