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Disable compact flash module if disk file is not available

master
Marco Maccaferri 2020-08-13 08:02:10 +02:00
rodzic 2b886ecb47
commit 66cafbaf1a
1 zmienionych plików z 91 dodań i 80 usunięć
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171
src/com/maccasoft/tools/Machine.java
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@ -120,7 +120,7 @@ public class Machine extends MemIoOps {
System.arraycopy(Utility.getSwappedBytes("1.00 "), 0, cfIdentifyBuffer, 46, 8); // Firmware version
System.arraycopy(Utility.getSwappedBytes("EMULATED CF CARD "), 0, cfIdentifyBuffer, 54, 40); // Card model
if (cfFile != null) {
if (cfFile != null && cfFile.exists()) {
cf = new RandomAccessFile(cfFile, "rw");
long size = cf.length() >> 9;
@ -197,57 +197,61 @@ public class Machine extends MemIoOps {
tstates += 4; // 4 clocks for read byte from bus
clockTimeNs += clockPeriodNs * 4;
if ((port & 0xFF) == tmsRam) {
port &= 0xFF;
if (port == tmsRam) {
return tms9918.inRam();
}
if ((port & 0xFF) == tmsReg) {
if (port == tmsReg) {
return tms9918.inReg();
}
switch (port & 0xFF) {
case CF_DATA:
if (cfCommand == CF_READ_SEC) {
if (cfDataCount < 512 * cfSecCount) {
cfDataCount++;
try {
if (cf != null) {
return (byte) cf.read();
if (cf != null) {
switch (port) {
case CF_DATA:
if (cfCommand == CF_READ_SEC) {
if (cfDataCount < 512 * cfSecCount) {
cfDataCount++;
try {
if (cf != null) {
return (byte) cf.read();
}
} catch (IOException e) {
e.printStackTrace();
}
} catch (IOException e) {
e.printStackTrace();
return 0x00;
}
return 0;
}
}
else if (cfCommand == CF_IDENTIFY) {
if (cfDataCount < cfIdentifyBuffer.length) {
return cfIdentifyBuffer[cfDataCount++];
else if (cfCommand == CF_IDENTIFY) {
if (cfDataCount < cfIdentifyBuffer.length) {
return cfIdentifyBuffer[cfDataCount++];
}
return 0x00;
}
return 0;
}
return 0;
case CF_SECCOUNT:
return cfSecCount & 0xFF;
case CF_STATUS:
if (cfCommand == CF_WRITE_SEC || cfCommand == CF_READ_SEC) {
return 0x48; // CF Ready, DRQ
}
else if (cfCommand == CF_IDENTIFY) {
if (cfDataCount < cfIdentifyBuffer.length) {
return 0x00;
case CF_SECCOUNT:
return cfSecCount & 0xFF;
case CF_STATUS:
if (cfCommand == CF_WRITE_SEC || cfCommand == CF_READ_SEC) {
return 0x48; // CF Ready, DRQ
}
}
return 0x40; // CF Ready
case CF_ERROR:
return 0x01; // No error
case CF_SECTOR:
case CF_CYL_LOW:
case CF_CYL_HI:
case CF_HEAD:
return 0;
else if (cfCommand == CF_IDENTIFY) {
if (cfDataCount < cfIdentifyBuffer.length) {
return 0x48; // CF Ready, DRQ
}
}
return 0x40; // CF Ready
case CF_ERROR:
return 0x01; // No error
case CF_SECTOR:
case CF_CYL_LOW:
case CF_CYL_HI:
case CF_HEAD:
return 0x00;
}
}
return port & 0xFF;
return port;
}
@Override
@ -255,64 +259,71 @@ public class Machine extends MemIoOps {
tstates += 4; // 4 clocks for write byte to bus
clockTimeNs += clockPeriodNs * 4;
if ((port & 0xFF) == tmsRam) {
port &= 0xFF;
value &= 0xFF;
if (port == tmsRam) {
tms9918.outRam(value);
}
if ((port & 0xFF) == tmsReg) {
if (port == tmsReg) {
tms9918.outReg(value);
}
switch (port & 0xFF) {
case CF_DATA:
if (cfCommand == CF_WRITE_SEC) {
if (cfDataCount < 512 * cfSecCount) {
cfDataCount++;
if (cf != null) {
switch (port) {
case CF_DATA:
if (cfCommand == CF_WRITE_SEC) {
if (cfDataCount < 512 * cfSecCount) {
cfDataCount++;
try {
if (cf != null) {
cf.write(value & 0xFF);
}
} catch (IOException e) {
e.printStackTrace();
}
}
}
break;
case CF_COMMAND:
cfCommand = (byte) value;
if (cfCommand == CF_WRITE_SEC || cfCommand == CF_READ_SEC) {
try {
long addr = ((cfLBA[3] & 0x0F) << 24) | ((cfLBA[2] & 0xFF) << 16) | ((cfLBA[1] & 0xFF) << 8) | (cfLBA[0] & 0xFF);
if (cf != null) {
cf.write(value & 0xFF);
cf.seek(addr << 9);
}
} catch (IOException e) {
e.printStackTrace();
}
cfDataCount = 0;
}
}
break;
case CF_COMMAND:
cfCommand = (byte) value;
if (cfCommand == CF_WRITE_SEC || cfCommand == CF_READ_SEC) {
try {
long addr = ((cfLBA[3] & 0x0F) << 24) | ((cfLBA[2] & 0xFF) << 16) | ((cfLBA[1] & 0xFF) << 8) | (cfLBA[0] & 0xFF);
if (cf != null) {
cf.seek(addr << 9);
}
} catch (IOException e) {
e.printStackTrace();
else if (cfCommand == CF_IDENTIFY) {
cfDataCount = 0;
}
cfDataCount = 0;
break;
case CF_LBA0:
cfLBA[0] = (byte) value;
break;
case CF_LBA1:
cfLBA[1] = (byte) value;
break;
case CF_LBA2:
cfLBA[2] = (byte) value;
break;
case CF_LBA3: {
cfLBA[3] = (byte) value;
break;
}
else if (cfCommand == CF_IDENTIFY) {
cfDataCount = 0;
}
break;
case CF_LBA0:
cfLBA[0] = (byte) value;
break;
case CF_LBA1:
cfLBA[1] = (byte) value;
break;
case CF_LBA2:
cfLBA[2] = (byte) value;
break;
case CF_LBA3: {
cfLBA[3] = (byte) value;
break;
case CF_SECCOUNT:
cfSecCount = (byte) value;
break;
}
case CF_SECCOUNT:
cfSecCount = (byte) value;
break;
}
switch (port) {
case 0x38: // ROM page
rom_paged = (value & 0xFF) != 0x01;
rom_paged = value != 0x01;
break;
}
}