1991/0719/pc/main.c (diff list | history)

1991/0718/sys/src/9/pc/main.c:13,18 – 1991/0719/sys/src/9/pc/main.c:13,19 (short | long | prev | next)
1991/0716		void
1991/0702		main(void)
1991/0625		{
1991/0719		a20enable();
1991/0711		machinit(); confinit();
1991/0703		screeninit();
1991/0718/sys/src/9/pc/main.c:19,24 – 1991/0719/sys/src/9/pc/main.c:20,26
1991/0716		printinit();
1991/0711		mmuinit();
1991/0718		trapinit();
1991/0719		kbdinit();
1991/0718		clockinit(); faultinit();
1991/0716		procinit0();
1991/0718/sys/src/9/pc/main.c:31,37 – 1991/0719/sys/src/9/pc/main.c:33,38
1991/0716		swapinit(); pageinit(); userinit();
1991/0717		print("user inited\n");
1991/0711
1991/0716		schedinit();
1991/0712		}
1991/0718/sys/src/9/pc/main.c:52,58 – 1991/0719/sys/src/9/pc/main.c:53,59
1991/0716		active.machs = 1;
1991/0625		}
1991/0718		long useless;
1991/0719		ulong garbage;
1991/0718
1991/0716		void init0(void)
1991/0718/sys/src/9/pc/main.c:64,72 – 1991/0719/sys/src/9/pc/main.c:65,70
1991/0716		u->p->state = Running; u->p->mach = m;
1991/0712
1991/0716		spllo();
1991/0718		print("interrupts on\n");
1991/0712
1991/0716		/* * These are o.k. because rootinit is null. * Then early kproc's will have a root and dot.
1991/0718/sys/src/9/pc/main.c:75,87 – 1991/0719/sys/src/9/pc/main.c:73,91
1991/0716		u->dot = clone(u->slash, 0);
1991/0712
1991/0716		chandevinit();
1991/0718		print("going to user\n");
1991/0716
1991/0718		/* * fault in the first executable page
1991/0719		* fault in the first executable page and user stack
1991/0718		*/ useless = *((ulong *)UTZERO);
1991/0719		print("text is %lux\n", *((ulong *)(UTZERO+32)));
1991/0718
1991/0719		/* fault in the first stack page */ print("stack is %lux\n", *((ulong *)(USTKTOP-4))); *((ulong *)(USTKTOP-4)) = 0xdeadbeef; print("stack is %lux\n", *((ulong *)(USTKTOP-4))); delay(5000);
1991/0716		touser();
1991/0712		}
1991/0718/sys/src/9/pc/main.c:104,114 – 1991/0719/sys/src/9/pc/main.c:108,119
1991/0716		/* * Kernel Stack
1991/0717		* * N.B. The -4 for the stack pointer is important. Gotolabel * uses the bottom 4 bytes of stack to store it's return pc.
1991/0719		* N.B. The -12 for the stack pointer is important. * 4 bytes for gotolabel's return PC * 8 bytes for optional sp and ss pushed during interrupts
1991/0716		*/ p->sched.pc = (ulong)init0;
1991/0717		p->sched.sp = USERADDR + BY2PG - 4;
1991/0719		p->sched.sp = USERADDR + BY2PG - 12;
1991/0716		p->upage = newpage(1, 0, USERADDR|(p->pid&0xFFFF)); /*
1991/0718/sys/src/9/pc/main.c:182,194 – 1991/0719/sys/src/9/pc/main.c:187,199
1991/0711		* the last 128k belongs to the roms */ conf.npage1 = (i)*1024/4; conf.base1 = 1024/4;
1991/0719		conf.base1 = 1024*1024;
1991/0711		conf.npage = conf.npage0 + conf.npage1;
1991/0717		conf.maxialloc = (conf.npage0*BY2PG-PGROUND((ulong)&end));
1991/0711		mul = 1; conf.nproc = 20 + 50*mul;
1991/0719		conf.nproc = 20 + 20*mul;
1991/0711		conf.npgrp = conf.nproc/2; conf.nseg = conf.nproc*3; conf.npagetab = (conf.nseg*14)/10;
1991/0718/sys/src/9/pc/main.c:275,278 – 1991/0719/sys/src/9/pc/main.c:280,282
1991/0717		{ return c; }