//----------------------------------------------------------------------
//
// main
//
// This routine is called when the OS starts up. It allocates a
// PCB for the first process - the one corresponding to the initial
// thread of execution. Note that the stack pointer is already
// set correctly by _osinit (assembly language code) to point
// to the stack for the 0th process. This stack isn't very big,
// though, so it should be replaced by the system stack of the
// currently running process.
//
//----------------------------------------------------------------------
void main (int argc, char *argv[])
{
int i,j;
int n;
char buf[120];
char *userprog = (char *)0;
int base=0;
int numargs=0;
char allargs[SIZE_ARG_BUFF];
int allargs_offset = 0;
debugstr[0] = '\0';
printf ("Got %d arguments.\n", argc);
printf ("Available memory: 0x%x -> 0x%x.\n", (int)lastosaddress, MemoryGetSize ());
printf ("Argument count is %d.\n", argc);
for (i = 0; i < argc; i++) {
printf ("Argument %d is %s.\n", i, argv[i]);
}
FsModuleInit ();
for (i = 0; i < argc; i++)
{
if (argv[i][0] == '-')
{
switch (argv[i][1])
{
case 'D':
dstrcpy (debugstr, argv[++i]);
break;
case 'i':
n = dstrtol (argv[++i], (void *)0, 0);
ditoa (n, buf);
printf ("Converted %s to %d=%s\n", argv[i], n, buf);
break;
case 'f':
{
int start, codeS, codeL, dataS, dataL, fd, j;
int addr = 0;
static unsigned char buf[200];
fd = ProcessGetCodeInfo (argv[++i], &start, &codeS, &codeL, &dataS,
&dataL);
printf ("File %s -> start=0x%08x\n", argv[i], start);
printf ("File %s -> code @ 0x%08x (size=0x%08x)\n", argv[i], codeS,
codeL);
printf ("File %s -> data @ 0x%08x (size=0x%08x)\n", argv[i], dataS,
dataL);
while ((n = ProcessGetFromFile (fd, buf, &addr, sizeof (buf))) > 0)
{
for (j = 0; j < n; j += 4)
{
printf ("%08x: %02x%02x%02x%02x\n", addr + j - n, buf[j], buf[j+1],
buf[j+2], buf[j+3]);
}
}
close (fd);
break;
}
case 'u':
userprog = argv[++i];
base = i; // Save the location of the user program's name
break;
default:
printf ("Option %s not recognized.\n", argv[i]);
break;
}
if(userprog)
break;
}
}
dbprintf ('i', "About to initialize queues.\n");
AQueueModuleInit ();
dbprintf ('i', "After initializing queues.\n");
MemoryModuleInit ();
dbprintf ('i', "After initializing memory.\n");
ProcessModuleInit ();
dbprintf ('i', "After initializing processes.\n");
SynchModuleInit ();
dbprintf ('i', "After initializing synchronization tools.\n");
KbdModuleInit ();
dbprintf ('i', "After initializing keyboard.\n");
ClkModuleInit ();
dbprintf ('i', "After initializing clock.\n");
for (i = 0; i < 100; i++) {
buf[i] = 'a';
}
i = FsOpen ("vm", FS_MODE_WRITE);
dbprintf ('i', "VM Descriptor is %d\n", i);
FsSeek (i, 0, FS_SEEK_SET);
FsWrite (i, buf, 80);
FsClose (i);
// Setup command line arguments
if (userprog != (char *)0) {
numargs=0;
allargs_offset = 0;
// Move through each of the argv addresses
for(i=0; i<argc-base; i++) {
// At each argv address, copy the string into allargs, including the '\0'
for(j=0; allargs_offset < SIZE_ARG_BUFF; j++) {
allargs[allargs_offset++] = argv[i+base][j];
if (argv[i+base][j] == '\0') break; // end of this string
}
numargs++;
}
allargs[SIZE_ARG_BUFF-1] = '\0'; // set last char to NULL for safety
ProcessFork(0, (uint32)allargs, userprog, 1);
} else {
dbprintf('i', "No user program passed!\n");
}
ClkStart();
dbprintf ('i', "Set timer quantum to %d, about to run first process.\n",
processQuantum);
intrreturn ();
// Should never be called because the scheduler exits when there
// are no runnable processes left.
exitsim(); // NEVER RETURNS!
}
//----------------------------------------------------------------------
//
// main
//
// This routine is called when the OS starts up. It allocates a
// PCB for the first process - the one corresponding to the initial
// thread of execution. Note that the stack pointer is already
// set correctly by _osinit (assembly language code) to point
// to the stack for the 0th process. This stack isn't very big,
// though, so it should be replaced by the system stack of the
// currently running process.
//
//----------------------------------------------------------------------
main (int argc, char *argv[])
{
int i, j;
int n;
char buf[120];
char *userprog = (char *)0;
static PCB temppcb;
uint32 addr;
extern void SysprocCreateProcesses ();
char *param[12]={NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL};
int base;
debugstr[0] = '\0';
MyFuncRetZero();
printf ("Got %d arguments.\n", argc);
printf ("Available memory: 0x%x -> 0x%x.\n", lastosaddress,
MemoryGetSize ());
printf ("Argument count is %d.\n", argc);
for (i = 0; i < argc; i++) {
printf ("Argument %d is %s.\n", i, argv[i]);
}
// *((int *)0xfff00100) = 't';
FsModuleInit ();
for (i = 0; i < argc; i++)
{
if (argv[i][0] == '-')
{
switch (argv[i][1])
{
case 'D':
dstrcpy (debugstr, argv[++i]);
break;
case 'i':
n = dstrtol (argv[++i], (void *)0, 0);
ditoa (n, buf);
printf ("Converted %s to %d=%s\n", argv[i], n, buf);
break;
case 'f':
{
int start, codeS, codeL, dataS, dataL, fd, j;
int addr = 0;
static unsigned char buf[200];
fd = ProcessGetCodeInfo (argv[++i], &start, &codeS, &codeL, &dataS,
&dataL);
printf ("File %s -> start=0x%08x\n", argv[i], start);
printf ("File %s -> code @ 0x%08x (size=0x%08x)\n", argv[i], codeS,
codeL);
printf ("File %s -> data @ 0x%08x (size=0x%08x)\n", argv[i], dataS,
dataL);
while ((n = ProcessGetFromFile (fd, buf, &addr, sizeof (buf))) > 0)
{
for (j = 0; j < n; j += 4)
{
printf ("%08x: %02x%02x%02x%02x\n", addr + j - n, buf[j], buf[j+1],
buf[j+2], buf[j+3]);
}
}
close (fd);
break;
}
case 'u':
userprog = argv[++i];
base = i;
break;
default:
printf ("Option %s not recognized.\n", argv[i]);
break;
}
if(userprog)
break;
}
}
dbprintf ('i', "About to initialize queues.\n");
QueueModuleInit ();
dbprintf ('i', "After initializing queues.\n");
MemoryModuleInit ();
dbprintf ('i', "After initializing memory.\n");
ProcessModuleInit ();
dbprintf ('i', "After initializing processes.\n");
ShareModuleInit ();
dbprintf ('i', "After initializing shared memory.\n");
SynchModuleInit ();
dbprintf ('i', "After initializing synchronization tools.\n");
KbdModuleInit ();
dbprintf ('i', "After initializing keyboard.\n");
for (i = 0; i < 100; i++) {
buf[i] = 'a';
}
i = FsOpen ("vm", FS_MODE_WRITE);
dbprintf ('i', "VM Descriptor is %d\n", i);
FsSeek (i, 0, FS_SEEK_SET);
FsWrite (i, buf, 80);
FsClose (i);
if (userprog != (char *)0) {
for(i=base;i<argc&&i-base<11; i++)
{
param[i-base] = argv[i];
}
process_create(0,0,param[0], param[1], param[2], param[3], param[4],
param[5], param[6], param[7], param[8], param[9],
param[10], param[11]);
// ProcessFork (0, (uint32)"Help Me man!", userprog, 1);
}
SysprocCreateProcesses ();
dbprintf ('i', "Created processes - about to set timer quantum.\n");
TimerSet (processQuantum);
dbprintf ('i', "Set timer quantum to %d, about to run first process.\n",
processQuantum);
intrreturn ();
// Should never be called because the scheduler exits when there
// are no runnable processes left.
exitsim(); // NEVER RETURNS!
}