Return to ovflon.c CVS log

Up to [XINU] / xinu / sys

Annotation of xinu/sys/ovflon.c, revision 1.1

1.1     ! root        1: /* ovflon.c -- ovflon */
        !             2: 
        !             3: #include <kernel.h>
        !             4: 
        !             5: /*------------------------------------------------------------------------
        !             6:  * ovflon -- turn on checking for integer overflow
        !             7:  *------------------------------------------------------------------------
        !             8:  */
        !             9: 
        !            10: SYSCALL ovflon()
        !            11: {
        !            12:        asm ("movpsl    r0");           /* return old psl value, set saved */
        !            13:        asm ("bisl2     $0x20, 4(fp)"); /* psl int overflow enable bit (on */
        !            14: }                                      /* stack frame). New psl popped by */
        !            15:                                        /* ret.                            */

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.