<i>syscall</i> should be the contents of V0 and <i>a</i>, <i>b</i>, <i>c</i>, and <i>d</i> should be
the contenst of A0, A1, A2, and A3. The call MAY change the state
@see Runtime#state state */
- protected final int syscall(int syscall, int a, int b, int c, int d) {
+ protected final int syscall(int syscall, int a, int b, int c, int d, int e, int f) {
try {
- return _syscall(syscall,a,b,c,d);
- } catch(ErrnoException e) {
- return -e.errno;
- } catch(FaultException e) {
+ int n = _syscall(syscall,a,b,c,d,e,f);
+ //if(n < 0) System.err.println("syscall: " + syscall + " returned " + n);
+ return n;
+ } catch(ErrnoException ex) {
+ //ex.printStackTrace();
+ return -ex.errno;
+ } catch(FaultException ex) {
return -EFAULT;
- } catch(RuntimeException e) {
- e.printStackTrace();
+ } catch(RuntimeException ex) {
+ ex.printStackTrace();
throw new Error("Internal Error in _syscall()");
}
}
- int _syscall(int syscall, int a, int b, int c, int d) throws ErrnoException, FaultException {
+ int _syscall(int syscall, int a, int b, int c, int d, int e, int f) throws ErrnoException, FaultException {
switch(syscall) {
case SYS_null: return 0;
case SYS_exit: return sys_exit(a);
}
public void _close() {
- try {is.close(); } catch(IOException e) { /*ignore*/ }
- try {os.close(); } catch(IOException e) { /*ignore*/ }
+ if(is != null) try { is.close(); } catch(IOException e) { /*ignore*/ }
+ if(os != null) try { os.close(); } catch(IOException e) { /*ignore*/ }
}
public int read(byte[] a, int off, int length) throws ErrnoException {