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Rearrange IDT initialization so it's easier to change ICU_OFFSET.

This commit is contained in:
mycroft 1993-10-31 18:36:21 +00:00
parent c2c4c71c90
commit a4cf218142
1 changed files with 5 additions and 5 deletions
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10
sys/arch/i386/isa/intr.c
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@ -26,7 +26,7 @@
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $Id: intr.c,v 1.8 1993/10/27 17:45:40 mycroft Exp $
* $Id: intr.c,v 1.9 1993/10/31 18:36:21 mycroft Exp $
*/
#include <sys/param.h>
@ -176,14 +176,14 @@ isa_defaultirq()
{
int i;
/* out of range vectors */
for (i = NRSVIDT; i < NIDT; i++)
setidt(i, &IDTVEC(wild), SDT_SYS386IGT, SEL_KPL);
/* icu vectors */
for (i = 0; i < ICU_LEN ; i++)
setidt(i + ICU_OFFSET, IDTVEC(intr)[i], SDT_SYS386IGT, SEL_KPL);
/* out of range vectors */
for (i += ICU_OFFSET; i < NIDT; i++)
setidt(i, &IDTVEC(wild), SDT_SYS386IGT, SEL_KPL);
/* initialize 8259's */
outb(IO_ICU1, 0x11); /* reset; program device, four bytes */
outb(IO_ICU1+1, ICU_OFFSET); /* starting at this vector index */