/*
*********************************************************************************************************
* STARTUP TASK
*********************************************************************************************************
*/
void TaskStart (void *pdata)
{
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
char s[100];
INT16S key;
pdata = pdata; /* Prevent compiler warning */
TaskStartDispInit(); /* Initialize the display */
OS_ENTER_CRITICAL(); /* Used to disable interrupts (see chapter 13)*/
PC_VectSet(0x08, OSTickISR); /* Install uC/OS-II's clock tick ISR */
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL(); /* Re-enable interrupts*/
OSStatInit(); /* Initialize uC/OS-II's statistics */
TaskStartCreateTasks(); /* Create all the application tasks */
for (;;) {
if (PC_GetKey(&key) == TRUE) { /* See if key has been pressed */
if (key == 0x1B) { /* Yes, see if it's the ESCAPE key */
PC_DOSReturn(); /* Return to DOS */
}
}
OSCtxSwCtr = 0; /* Clear context switch counter */
OSTimeDlyHMSM(0, 0, 1, 0); /* Wait one second */
}
}
void main (void) {
int far *bootend;
int result;
int *test1, *test2;
msgIndex = tickCnt = 0;
init_queue(&osqueue1);
init_queue(&osqueue2);
bootend = MK_FP(0x7c0, 510);
result = *bootend;
if(result == 0xAA55)
isFunnyOS = 1;
//test1 = osMalloc(10);
//strcpy(test1, "testmallcabcdefghi");
//test2 = osMalloc(20);
//strcpy(test2, "test2malloc");
PC_DispClrScr(DISP_FGND_WHITE + DISP_BGND_BLACK); /* Clear the screen */
PC_DispStr( 0, 0, " Funny OS Demo ", DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK);
//PC_DispChar( 10, 0, '0' + isFunnyOS , DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK);
//PC_DispStr( 15, 0, test1, DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK);
//PC_DispStr( 15, 1, test2, DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK);
//PC_DispChar( 14, 0, *bootend , DISP_FGND_WHITE + DISP_BGND_RED + DISP_BLINK);
PC_SetTickRate(18); /* Reprogram tick rate */
//PC_TickISR = &TickISR;
PC_TickISR = PC_VectGet(0x8);
PC_VectSet(0x8, &TickISR); //asm {int 08h};
// ptask1 = &testTask1;
// ptask2 = &testTask2;
task[0].ptask = &gameSnake;//&testTask1;
task[0].stack_SS = 0x9000;
task[0].stack_SP = 0x100;
taskCount++;
task[1].ptask = &gameTetris;//&task_bubble_sort;//&testTask2;
task[1].stack_SS = 0x8000;
task[1].stack_SP = 0x100;
taskCount++;
task[2].ptask = &taskReadKeyBoard; //&task_select_sort;
task[2].stack_SS = 0x7000;
task[2].stack_SP = 0x100;
taskCount++;
task[3].ptask = &task_quick_sort;
task[3].stack_SS = 0x6000;
task[3].stack_SP = 0x100;
//taskCount++;
for(;;);
}
/*
*********************************************************************************************************
* SAVE DOS RETURN LOCATION
*
* Description : This function saves the location of where we are in DOS so that it can be recovered.
* This allows us to abort multitasking under uC/OS-II and return back to DOS as if we had
* never left. When this function is called by 'main()', it sets 'PC_ExitFlag' to FALSE
* so that we don't take the 'if' branch. Instead, the CPU registers are saved in the
* long jump buffer 'PC_JumpBuf' and we simply return to the caller. If a 'long jump' is
* performed using the jump buffer then, execution would resume at the 'if' statement and
* this time, if 'PC_ExitFlag' is set to TRUE then we would execute the 'if' statements and
* restore the DOS environment.
*
* Arguments : None
*
* Returns : None
*********************************************************************************************************
*/
void PC_DOSSaveReturn (void)
{
PC_ExitFlag = FALSE; /* Indicate that we are not exiting yet! */
OSTickDOSCtr = 1; /* Initialize the DOS tick counter */
PC_TickISR = PC_VectGet(VECT_TICK); /* Get MS-DOS's tick vector */
OS_ENTER_CRITICAL();
PC_VectSet(VECT_DOS_CHAIN, PC_TickISR); /* Store MS-DOS's tick to chain */
OS_EXIT_CRITICAL();
setjmp(PC_JumpBuf); /* Capture where we are in DOS */
if (PC_ExitFlag == TRUE) { /* See if we are exiting back to DOS */
OS_ENTER_CRITICAL();
PC_SetTickRate(18); /* Restore tick rate to 18.2 Hz */
PC_VectSet(VECT_TICK, PC_TickISR); /* Restore DOS's tick vector */
OS_EXIT_CRITICAL();
PC_DispClrScr(DISP_FGND_WHITE + DISP_BGND_BLACK); /* Clear the display */
exit(0); /* Return to DOS */
}
}
/*
*********************************************************************************************************
* STARTUP TASK
*********************************************************************************************************
*/
void TaskStart (void *pdata) {
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
char s[100];
INT16S key;
pdata = pdata; /* Prevent compiler warning */
TaskStartDispInit(); /* Initialize the display */
OS_ENTER_CRITICAL();
PC_VectSet(0x08, OSTickISR); /* Install uC/OS-II's clock tick ISR */
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL();
OSStatInit(); /* Initialize uC/OS-II's statistics */
FileContentInit(); /* Initialize fileContent */
TaskStartCreateTasks(); /* Create all the application tasks */
OSTaskCreate(ReceiveTask,(void *)0, &ReceiveTaskStk[TASK_STK_SIZE - 1], 11);
for (;;) {
TaskStartDisp(); /* Update the display */
if (PC_GetKey(&key) == TRUE) { /* See if key has been pressed */
if (key == 'q') /* Yes, see if it's the ESCAPE key */
PC_DOSReturn(); /* Return to DOS */
if (key == 'b') /* See if it's b and then stop the tasks */
TaskSuspend();
if (key == 'r') /* See if it's r and then resume the tasks */
TaskResume();
}
OSCtxSwCtr = 0; /* Clear context switch counter */
OSTimeDlyHMSM(0, 0, 0, 100); /* Wait one second */
}
}
void TaskStart (void *pdata)
{
#if OS_CRITICAL_METHOD == 3 /* Allocate storage for CPU status register */
OS_CPU_SR cpu_sr;
#endif
INT16S key;
pdata = pdata; /* Prevent compiler warning */
TaskStartDispInit(); /* Setup the display */
OS_ENTER_CRITICAL(); /* Install uC/OS-II's clock tick ISR */
PC_VectSet(0x08, OSTickISR);
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL();
OSStatInit(); /* Initialize uC/OS-II's statistics */
MsgQueue = OSQCreate(&MsgQueueTbl[0], MSG_QUEUE_SIZE); /* Create a message queue */
TaskStartCreateTasks();
for (;;) {
TaskStartDisp(); /* Update the display */
if (PC_GetKey(&key)) { /* See if key has been pressed */
if (key == 0x1B) { /* Yes, see if it's the ESCAPE key */
PC_DOSReturn(); /* Yes, return to DOS */
}
}
OSCtxSwCtr = 0; /* Clear the context switch counter */
OSTimeDly(OS_TICKS_PER_SEC); /* Wait one second */
}
}
void TaskStart ( void *data )
{
PWINDOWS ptr = GetActiveWindow();
UBYTE i;
char sCmd[MAX_X];
WORD key;
WORD index, pos = 0x00;
data = data; /* Prevent compiler warning */
OS_ENTER_CRITICAL();
PC_VectSet(0x08, OSTickISR); /* Install uC/OS-II's clock tick ISR */
PC_SetTickRate(OS_TICKS_PER_SEC); /* Reprogram tick rate */
OS_EXIT_CRITICAL();
PC_DispChar(0, 0, ' ', 0x00);
PC_DispStr (8, 16, "Determining CPU's capacity ...", DISP_FGND_WHITE);
CreateWindow (0, StartY, MAX_X, EndY, DISP_FGND_WHITE, DISP_BGND_BLUE, "[ Prompt Window ]");
CreateTaskWindows();
OSStatInit(); /* Initialize uC/OS-II's statistics */
for (i = 0; i < N_TASKS; i ++)
{ /* Create N_TASKS identical tasks */
TaskData[i] = '0' + i; /* Each task will display its own letter */
OSTaskCreate(Task, (void *)&TaskData[i], (void *)&TaskStk[i][TASK_STK_SIZE - 1], i + 1);
}
DisplayTitle();
ClearWindow();
memset(sCmd, 0x00, MAX_X);
DisplayPrompt();
for (;;)
{
DisplayStatus(); // display status of tasks
if (PC_GetKey(&key) == TRUE)
{ /* See if key has been pressed */
if (key == 0x1B)
{ /* Yes, see if it's the ESCAPE key */
PC_DOSReturn(); /* Return to DOS */
}
else if (key == 0x08) // backspace
{
pos --;
pos = pos <= 0x00 ? 0x00 : pos;
sCmd[pos] = '\0';
PC_DispChar(ptr->cx + pos + strlen(sCmdPrompt), ptr->cy, ' ', ptr->color);
DisplayCursor(ptr->cx + pos + strlen(sCmdPrompt), ptr->cy);
}
else if (key == 0x0d || key == 0x0a) // enter
{
if (pos)
{
index = ParseCommand(sCmd);
HandleCommand(index);
}
memset(sCmd, 0x00, MAX_X);
pos = 0x00;
ptr->cy ++;
if (ptr->cy == ptr->ey - 1)
ClearWindow();
DisplayPrompt();
}
else if ((key >= '0' && key <= '9') ||
(key >= 'a' && key <= 'z') || (key >= 'A' && key <= 'Z'))
{
if (pos < MAX_X)
{
sCmd[pos] = (char)key;
PC_DispChar(ptr->cx + pos + strlen(sCmdPrompt), ptr->cy, key, ptr->color);
DisplayCursor (ptr->cx + pos + strlen(sCmdPrompt) + 1, ptr->cy);
}
pos ++;
}
}
OSTimeDlyHMSM(0, 0, 0, 200); /* Wait 200 ms */
}
}