1991/0710/pc/trap.c (diff list | history)

1991/0709/sys/src/9/pc/trap.c:29,38 – 1991/0710/sys/src/9/pc/trap.c:29,38 (short | long | prev | next)
1991/0703		void (*ivec[256])(void*); void sethvec(int v, void (*r)(void), int type)
1991/0710		sethvec(int v, void (*r)(void), int type, int pri)
1991/0613		{
1991/0703		ilt[v].d0 = ((ulong)r)&0xFFFF|(KESEL<<16); ilt[v].d1 = ((ulong)r)&0xFFFF0000|SEGP|SEGPL(3)|type;
1991/0710		ilt[v].d1 = ((ulong)r)&0xFFFF0000|SEGP|SEGPL(pri)|type;
1991/0703		}
1991/0614
1991/0703		void
1991/0709/sys/src/9/pc/trap.c:62,99 – 1991/0710/sys/src/9/pc/trap.c:62,105
1991/0703		/* * set the standard traps */ sethvec(0, intr0, SEGTG); sethvec(1, intr1, SEGTG); sethvec(2, intr2, SEGTG); sethvec(3, intr3, SEGTG); sethvec(4, intr4, SEGTG); sethvec(5, intr5, SEGTG); sethvec(6, intr6, SEGTG); sethvec(7, intr7, SEGTG); sethvec(8, intr8, SEGTG); sethvec(9, intr9, SEGTG); sethvec(10, intr10, SEGTG); sethvec(11, intr11, SEGTG); sethvec(12, intr12, SEGTG); sethvec(13, intr13, SEGTG); sethvec(14, intr14, SEGTG); sethvec(15, intr15, SEGTG); sethvec(16, intr16, SEGTG);
1991/0706		sethvec(17, intr17, SEGTG); sethvec(18, intr18, SEGTG); sethvec(19, intr19, SEGTG); sethvec(20, intr20, SEGTG); sethvec(21, intr21, SEGTG); sethvec(22, intr22, SEGTG); sethvec(23, intr23, SEGTG);
1991/0710		sethvec(0, intr0, SEGTG, 0); sethvec(1, intr1, SEGTG, 0); sethvec(2, intr2, SEGTG, 0); sethvec(3, intr3, SEGTG, 0); sethvec(4, intr4, SEGTG, 0); sethvec(5, intr5, SEGTG, 0); sethvec(6, intr6, SEGTG, 0); sethvec(7, intr7, SEGTG, 0); sethvec(8, intr8, SEGTG, 0); sethvec(9, intr9, SEGTG, 0); sethvec(10, intr10, SEGTG, 0); sethvec(11, intr11, SEGTG, 0); sethvec(12, intr12, SEGTG, 0); sethvec(13, intr13, SEGTG, 0); sethvec(14, intr14, SEGTG, 0); sethvec(15, intr15, SEGTG, 0); sethvec(16, intr16, SEGTG, 0); sethvec(17, intr17, SEGTG, 0); sethvec(18, intr18, SEGTG, 0); sethvec(19, intr19, SEGTG, 0); sethvec(20, intr20, SEGTG, 0); sethvec(21, intr21, SEGTG, 0); sethvec(22, intr22, SEGTG, 0); sethvec(23, intr23, SEGTG, 0);
1991/0703		/* * set all others to unknown */
1991/0706		for(i = 24; i < 256; i++)
1991/0703		sethvec(i, intrbad, SEGIG);
1991/0710		sethvec(i, intrbad, SEGIG, 0);
1991/0703		/*
1991/0710		* system calls */ sethvec(64, intr64, SEGTG, 3); /* setvec(64, syscall, SEGTG); /**/ /*
1991/0703		* tell the hardware where the table is (and how long) */ lidt(ilt, sizeof(ilt));
1991/0709/sys/src/9/pc/trap.c:114,119 – 1991/0710/sys/src/9/pc/trap.c:120,126
1991/0614		/*
1991/0703		* All traps
1991/0614		*/
1991/0710		void
1991/0703		trap(Ureg *ur)
1991/0614		{
1991/0703		if(ur->trap>=256 || ivec[ur->trap] == 0)
1991/0709/sys/src/9/pc/trap.c:129,132 – 1991/0710/sys/src/9/pc/trap.c:136,171
1991/0709		* highest level interrupt */ outb(Int0ctl, EOI);
1991/0710		} /* * system calls */ long syscall(Ureg *ur) { panic("syscall"); } #include "errstr.h" void error(int code) { strncpy(u->error, errstrtab[code], ERRLEN); nexterror(); } void errors(char *err) { strncpy(u->error, err, ERRLEN); nexterror(); } void nexterror(void) { gotolabel(&u->errlab[--u->nerrlab]);
1991/0614		}