main()
{
char name[64]; int cmd;
/* resetVideo();*/
while(1){
pid = get_pid();
printf("==============================================\n");
printf("I am task %d in Umode at segment=%x\n", pid, getcs());
show_menu();
printf("Command ? ");
mgets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : get_pid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : mywait(); break;
case 6 : myexit(); break;
case 7 : ufork(); break;
case 8 : myexec("/u2"); break;
case 9 : sin(); break;
case 10 : sout(); break;
default: invalid(name); break;
}
}
}
main(int argc, char *argv[])
{
char name[64]; int pid, cmd, segment, i;
while(1){
pid = getpid();
color = 0x000B + (pid % 5);
segment = (pid+1)*0x1000;
printf("==============================================\n");
printf("I am proc %din U mode: segment=%x\n", pid, segment);
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9 : do_itimer(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int cmd;
int pid;
while(1){
pid = getpid();
printf("==============================================\n");
printf("Das ist prozess %d im Umode segment=%x\n", pid, getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : mywait(); break;
case 6 : myexit(); break;
case 7 : ufork(); break;
case 8 : myexec("/bin/u1"); break;
case 9 : sin(); break;
case 10: sout(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd;
while(1){
pid = getpid();
color = 0x000A + (pid % 6);
printf("----------------------------------------------\n");
printf("I am proc %d in U mode: running segment=%x\n",getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
default: invalid(name); break;
}
}
}
/************** syscall routing table ***********/
int kcinth()
{
u16 x, y, z, w, r;
u16 seg, off;
seg = running->uss; off = running->usp;
x = get_word(seg, off+13*2);
y = get_word(seg, off+14*2);
z = get_word(seg, off+15*2);
w = get_word(seg, off+16*2);
switch(x){
case 0 : r = running->pid; break;
case 1 : r = kps(); break;
case 2 : r = chname(y); break;
case 3 : r = kmode(); break;
case 4 : r = tswitch(); break;
case 5 : r = kwait(); break;
case 6 : r = kexit(); break;
case 7 : r = fork(); break;
case 8 : r = kexec(y); break;
case 9 : r = sout(y); break;
case 10: r = sin(y); break;
case 99: r = kexit(); break;
default: printf("invalid syscall # : %d\n", x);
}
put_word(r, seg, off+2*8);
}
/****************** syscall handler in C ***************************/
int kcinth(){
u16 segment, offset;
int a,b,c,d, r;
segment = running->uss;
offset = running->usp;
/** get syscall parameters from ustack **/
a = get_word(segment, offset + 2*PA);
b = get_word(segment, offset + 2*PB);
c = get_word(segment, offset + 2*PC);
d = get_word(segment, offset + 2*PD);
//printf("proc%d syscall a=%d b=%d c=%d d=%d\n", running->pid, a,b,c,d);
switch(a){
case 0 : r = running->pid; break;
case 1 : r = do_ps(); break;
case 2 : r = chname(b); break;
case 3 : r = kmode(); break;
case 4 : r = tswitch(); break;
case 5 : r = do_wait(b); break;
case 6 : r = do_exit(b); break;
case 90: r = getc(); break;
case 91: r = putc(b); break;
case 99: do_exit(b); break;
default: printf("invalid syscall # : %d\n", a);
}
put_word(r, segment, offset + 2*AX);
}
main(int argc, char *argv[])
{
int pid, cmd, i;
char name[64];
ucolor = 0;
clearScreen(UMODE);
printf("enter main() : argc = %d\n", argc);
for (i=0; i<argc; i++)
printf("argv[%d] = %s\n", i, argv[i]);
while(1){
pid = getpid();
color = ucolor ? ucolor:0x000B + (pid % 5);// avoid black on black baground
cmd?resetCursor(UMODE):1;
printf("----------------------------------------------\n");
printf("I am proc %din U mode: segment=%x\n", pid, (pid+1)*0x1000);
show_menu();
printf("Command ? ");
getCurPos(UMODE);
printf(" \n");
setCurPos(ux_col,uy_row,UMODE);
gets(name);
clearScreenRegion(K_X_PRINT_OFFSET,80,U_Y_PRINT_OFFSET-1,24,UMODE);
if (name[0]==0)
continue;
cmd = find_cmd(name);
getCurPos(UMODE);
setCurPos(K_X_PRINT_OFFSET,U_Y_PRINT_OFFSET,UMODE);
switch(cmd){
case 0 : do_getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9 : ucolor = chcolor(); break;
case 10: pipe(); break;
case 11: pfd(); break;
case 12: read_pipe(); break;
case 13: write_pipe(); break;
case 14: close_pipe(); break;
default: invalid(name); break;
}
setCurPos(ux_col,uy_row,UMODE);
}
}
int kcinth()
{
u16 segment, offset;
int a,b,c,d, r;
segment = running->uss;
offset = running->usp;
a = get_word(segment, offset + 2*PA);
b = get_word(segment, offset + 2*PB);
c = get_word(segment, offset + 2*PC);
d = get_word(segment, offset + 2*PD);
/*printf("interupthandler a = %d\n", a);
printf("b = %d\n", b);
printf("string: %s\n", c);
printf("n = %d\n", d);*/
switch(a){
case 0 : r = running->pid; break;
case 1 : r = do_ps(); break;
case 2 : r = kchname(b); break;
case 3 : r = kmode(); break;
case 4 : r = tswitch(); break;
case 5 : r = do_wait(b); break;
case 6 : r = do_exit(b); break;
case 7 : r = fork(); break;
case 8 : r = exec(b); break;
/****** these are YOUR pipe functions ************/
case 30 : r = kpipe(b); break;
case 31 : r = read_pipe(b,c,d); break;
case 32 : r = write_pipe(b,c,d); break;
case 33 : r = close_pipe(b); break;
case 34 : r = pfd(); break;
/**************** end of pipe functions ***********/
case 90: r = getc(); break;
case 91: color=running->pid+11;
r = putc(b); break;
case 99: do_exit(b); break;
default: printf("invalid syscall # : %d\n", a);
}
//printf("interupthandler r = %d\n", r);
//getc();
put_word(r, segment, offset + 2*AX);
}
main(int argc, char *argv[])
{
char name[64]; int pid, cmd, segment, i;
pid = getpid();
color = 0x000B + (pid % 5); // avoid black on black baground
printf("enter main() : argc = %d\n", argc);
for (i=0; i<argc; i++)
printf("argv[%d] = %s\n", i, argv[i]);
while(1){
pid = getpid();
color = 0x000B + (pid % 5);
segment = (pid+1)*0x1000;
printf("==============================================\n");
printf("I am proc %din U mode: segment=%x\n", pid, segment);
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9: chcolor(); break;
default: invalid(name); break;
}
}
}
int kcinth()
{
u16 segment, offset;
int a,b,c,d, r;
segment = running->uss;
offset = running->usp;
a = get_word(segment, offset + 2*PA);
b = get_word(segment, offset + 2*PB);
c = get_word(segment, offset + 2*PC);
d = get_word(segment, offset + 2*PD);
switch(a){
case 0 : r = running->pid; break;
case 1 : r = do_ps(); break;
case 2 : r = chname(b); break;
case 3 : r = kmode(); break;
case 4 : r = tswitch(); break;
case 5 : r = do_wait(b); break;
case 6 : r = do_exit(b); break;
case 7 : r = fork(); break;
case 8 : r = exec(b); break;
case 9 : r = vfork(); break;
case 30 : r = kpipe(b); break;
case 31 : r = read_pipe(b,c,d); break;
case 32 : r = write_pipe(b,c,d); break;
case 33 : r = close_pipe(b); break;
case 34 : r = pfd(); break;
case 90: r = getc(); break;
case 91: color=running->pid+11;
r = putc(b); break;
case 99: do_exit(b); break;
default: printf("invalid syscall # : %d\n", a);
}
put_word(r, segment, offset + 2*AX);
}
main()
{
char name[64]; int pid, cmd;
pid = getpid();
while(1){
color = 0x0000B + pid;
printf("==============================================\n");
printf("\nIch bin Prozess %d in der U Weise: das laufen im Segment=%x\n",
getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
printf("find_cmd = %d\n", cmd);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9 : pipe(); break;
case 10: pfd(); break;
case 11 : read_pipe(); break;
case 12 : write_pipe();break;
case 13: close(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd;
while(1){
pid = getpid();
color = 0x000B + (pid % 6);
printf("----------------------------------------------\n");
printf("I am proc %d in U mode: running segment=%x\n",getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
printf("find_cmd = %d\n", cmd);
/*char *cmd[]={"getpid", "ps", "chname", "kmode", "switch", "wait", "exit",
"fork", "exec", "pipe", "pfd", "read", "write", "close", 0};*/
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9 : pipe(); break;
case 10: pfd(); break;
case 11 : read_pipe(); break;
case 12 : write_pipe();break;
case 13: close_pipe(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64]; int pid, cmd, segment, i;
pid = getpid();
color = 0x000B + (pid % 5); // avoid black on black baground
while(1){
pid = getpid();
color = 0x000B + (pid % 5);
segment = (pid+1)*0x1000;
printf("==============================================\n");
printf("I am proc %din U mode: segment=%x\n", pid, segment);
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : exit(); break;
case 7 : fork(); break;
case 8 : exec(); break;
case 9: pipe(); break;
case 10: pfd(); break;
case 11: read_pipe(); break;
case 12: write_pipe(); break;
case 13: close_pipe(); break;
default: invalid(name); break;
}
}
}
main()
{
char name[64];
int pid, cmd;
while(1){
printf("==============================================\n");
printf("\nIch bin Prozess %d in der U Weise: das laufen im Segment=%x\n",
getpid(), getcs());
show_menu();
printf("Command ? ");
gets(name);
if (name[0]==0)
continue;
cmd = find_cmd(name);
switch(cmd){
case 0 : getpid(); break;
case 1 : ps(); break;
case 2 : chname(); break;
case 3 : kmode(); break;
case 4 : kswitch(); break;
case 5 : wait(); break;
case 6 : die(); break;
case 7 : ufork(); break;
case 8 : uexec(); break;
case 9 : chcolor(); break;
default: invalid(name); break;
}
}
}
/****************** syscall handler in C ***************************/
int kcinth()
{
int a,b,c,d, r;
//WRITE CODE TO GET get syscall parameters a,b,c,d from ustack
a = get_word(running->uss, running->usp + 26);
b = get_word(running->uss, running->usp + 28);
c = get_word(running->uss, running->usp + 30);
d = get_word(running->uss, running->usp + 32);
switch(a){
case 0 : r = kgetpid(); break;
case 1 : r = kps(); break;
case 2 : r = kchname(b); break;
case 3 : r = kmode(); break;
case 4 : r = tswitch(); break;
case 5 : r = kkwait(b); break;
case 6 : r = kkexit(b); break;
case 7 : r = fork(); break;
case 8 : r = kexec(b); break;
case 30: r = kpipe(b); break;
case 31: r = read_pipe(b,c,d); break;
case 32: r = write_pipe(b,c,d);break;
case 33: r = close_pipe(b); break;
case 34: r = pfd(); break;
case 90: r = getc(); break;
case 91: r = putc(b); break;
case 99: kkexit(b); break;
default: printf("invalid syscall # : %d\n", a);
}
//WRITE CODE to let r be the return value to Umode
put_word(r, running->uss, running->usp + 16);
return r;
}
int kcinth()
{
ushort seg, off, r;
int x, y, z, w;
seg = running->uss; off = running->usp;
x = get_word(seg, off + 2*13);
y = get_word(seg, off + 2*14);
z = get_word(seg, off + 2*15);
w = get_word(seg, off + 2*16);
switch(x){
case 0 : r = running->pid; break;
case 1 : r = do_ps(); break;
case 2 : r = chname(y); break;
case 3 : r = kmode(); break;
case 4 : r = tswitch(); break;
case 5 : r = do_wait(y); break;
case 6 : r = do_exit(y); break;
case 7 : r = ufork(); break;
case 8 : r = exec(y); break;
case 9 : r = chcolor(y); break;
case 10: r = putc(y); break;
case 11: mysleep(y); break;
case 99 : do_exit(y); break;
default: printf("invalid syscall # : %d\n", x);
break;
}
put_word(r, seg, off + 2*8);
}
