IIT: Make your own OS


print 'MATH OS'
print
while 1:
    print
    print'[a]dd'
    print'[s]ubtract'
    print's[h]utdown'
    print
    inp = raw_input('?')[0]
    if inp=='a':
        print input('?')+input('?')
    if inp=='s':
        print input('?')-input('?')
    if inp=='h':
        break


#include <iostream>

using namespace std;

int main() {
    for(;;)
        cout << "SPAM OS ";
}

>>2
#include <iostream>

using std::cout;
using std::endl;

int main() {
    spam:
        cout << "SPAM OS" << endl;
    goto spam;
}

PERL OS

eval while($_ = <STDIN>);

In In Thread

>>4
eval while<>

fuckin perl


while 1:
    eval(raw_input('>>>'))

I have hand-crafted my own OS with love and neckbeard.

>>9
Your OS lacks a kernel.

>>10
Your kernal lacks an OS


;VERY SIMPLE 6502 OPERATING SYSTEM
NUMDRV = $00 ;number of installed drivers
; holding spots to preserve registers
TEMP1 = $01; TEMP2 = $02; TEMP3 = $03; TEMP4 = $04
VECTORL = $05 ;used to indirect jump to specific driver
VECTORH = $06
DRVTABL = $20 ;beginning of driver pointer table, low bytes
DRVTABH = $40 ;beginning of driver pointer table, high bytes

MAXDRV  = $20 ;maximum number of drivers supported

REGDRV  ;Registers a driver
        ;pointer to driver .X high byte, .A low byte
        PHP
        STY TEMP1
        LDY NUMDRV
        CPX #MAXDRV
        BEQ REGDRVE
        STA (DRVTABL),Y
        TXA
        STA (DRVTABH),Y
        INC NUMDRV
        LDY TEMP
REGDRVZ PLP
        RTS
REGDRVE SEC
        JMP REGDRVZ

DRVCALL ;Calls a driver
        ;.Y is the specific driver number
        ;.A is specific operation, implemented by driver
        ;.A can be the following:
        ; 0-init device, 1-get device info, 2-get device state
        ; 3-open, 4-read, 5-write, 6-close
        LDA (DRVTABL),Y
        STA VECTORL
        LDA (DRVTABH),Y
        STA VECTORH
        JMP (VECTORL) ; tail call optimization; borrow driver RTS

>>10
^{[Citation Needed]}

Back to rechan, please.

It's a miracle that this thread hasn't been polluted by anoonix people yet.

People in this thread fail to realise std::cout is undefined when implementing an OS.

>>16
XD

>>16
What about other posts? >>1,4,6,8? Please enlighten us, Captain.

10 PRINT LOL
20 GOTO 10

>>19
LOL undefined

>>20
Works using my custom BASIC compiler.

>>20
Doesn't matter to basic, it'll just print out the integer value of LOL. Usually 0.

PERL OS

eval while($_ = <STDIN>);

i lol'd

to many people use  $_

>>23
And yet, not enough programming languages have $_

why do people even use _

while 1: pass

not one piece of C or Lisp code in this thread.  I'm disjointed

>>27
#include<stdio.h>
int main(int argc, char *argv[]){
   printf("i hope this helps you feel more jointed");
   return(0);
}

I have the only multiplatform OS:

public class OS
 {
public static void main(String args[])
{
 try
{
Runtime rt=Runtime.getRuntime();
while(true)
{
String s=System.in.readLine();
Process p=rt.exec(s); p.waitFor();
} catch(Exception e) { System.out.println(e.getMessage()); } } }

>>27
int main()
{
//for(;;);
c: goto c; //OMGOPTIMIZED(NOT)
}

>>30
in b4 while( fork() ) fork();

>>1
is dat sum bc?

>>32
dc(1) > bc(1).

http://sadf.yi.org/YHBT/OS.asm

>>34
The You Have Been Trolled Operating System?

>>35
Yes.

>>36
Awesome.

http://code.google.com/p/es-operating-system/wiki/UsingES <-- JAVASCRIPT OPERATING SYSTEM EH

>>38
http://www.masswerk.at/jsuix/ <-- ANOTHER ONE

>>38
es is a computer operating system developed originally by Nintendo and since 2008 by Google. The operating system runs natively on x86, and includes a kernel written in C++.

>>40
I feel sorry for them.

>>40

What's wrong with a C++ kernel?

>>42
What's wrong with a BrainFuck kernel?

>>43
What's wrong with a The ABC Programming Language kernel?

>>44
What's wrong with an Unlambda kernel?

>>45
What's wrong with a Fjölnir/"GRUNNUR" kernel?

>>46
What's wrong with a Common Lisp kernel?

>>47
What's wrong with a Clojure kernel?

>>48
What's wrong with a ^B_B^C_O^D_E kernel?

>>49
What's wrong with a Haskell kernel?

ENTERPRISE OS


using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ENTERPRISEOS
{
    class Program
    {
        static void Main(string[] args)
        {
            while (Console.In.Peek() != 'q')
            {
                Console.In.ReadLine();
                Console.Out.WriteLine("That's enterprise quality!");
            }
        }
    }
}

>>51
http://en.wikipedia.org/wiki/Singularity_%28Enterprise%29

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ENTERPRISEOS
{
    class Paula
    {
        static void Main(string[] args)
        {
            while (Console.In.Peek() != 'q')
            {
                Console.In.ReadLine();
                Console.Out.WriteLine("Brillant!");
            }
        }
    }

>>53
Back to /wtf/, please.

>>53
}

>>55
{

>>56
}

>>57
do

>>58
not

>>59
else

>>60
comefrom>>55

>>61
exit(1);

>>63
for(;;)
  fork();

sudo rm -rf /

shiichan1:>>63:1:warning: unreachable post reference

killall shiichan && shiichan --disable-warnings

>>63
#include <stdio.h>
#include <unistd.h>

#define LOL(f, g) ({         \
                 int (*_f)(void) = f, (*_g)(void) = g; \
                 int _(void){_g();return _f();} \
                  _;                             \
                })

int main(void){
 LOL(main,fork)();
 return 0;
}

#define LOL(f, g) ({         \
                 int (*_f)(void) = f, (*_g)(void) = g; \
                 int _(void){_g();return _f();} \
                  _;                             \
                })

>>67
C isn't guaranteed to optimize tail-recursion, so you might get a stack overflow.

recursion means it loops forever means itit loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means it loops forever means _...

>>67
on my machine it hits kern.maxproc a long time before overflowing the stack could even start to be a problem.

>>71
Quit bragging about how big you're stack is, jerk

I think we should all hold onto circles so we can avoid buffer overflows together

I think we should all hold onto circles so we can avoid buffer overflows together

I think we should all hold onto circles so we can avoid buffer overflows together

I think we should all hold onto circles so we can avoid buffer overflows together

I think we should all hold onto our anuses so we can avoid getting haxed together

^{Back to /b/, ``GNAA Faggot''}