Return to reset.c CVS log

Up to [Power 6/32 Unix Tahoe 4.2BSD] / cci / usr / src / lib / libc / tahoe / compat-4.1

Annotation of cci/usr/src/lib/libc/tahoe/compat-4.1/reset.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * @(#)reset.s 4.2 (Berkeley) 7/5/83
        !             3:  * C library -- reset, setexit
        !             4:  *
        !             5:  *     reset(x)
        !             6:  * will generate a "return" from
        !             7:  * the last call to
        !             8:  *     setexit()
        !             9:  * by restoring r2 - r12, fp
        !            10:  * and doing a return.
        !            11:  * The returned value is x; on the original
        !            12:  * call the returned value is 0.
        !            13:  *
        !            14:  * useful for going back to the main loop
        !            15:  * after a horrible error in a lowlevel
        !            16:  * routine.
        !            17:  */
        !            18: #include "DEFS.h"
        !            19: 
        !            20: ENTRY(setexit)
        !            21:        movab   setsav,r0
        !            22:        storer  $0x1ffc, (r0)
        !            23:        movl    (fp),44(r0)             # fp
        !            24:        moval   4(fp),48(r0)            # sp
        !            25:        movl    -8(fp),52(r0)           # pc
        !            26:        clrl    r0
        !            27:        ret
        !            28: 
        !            29: ENTRY(reset)
        !            30:        movl    4(fp),r0        # returned value
        !            31:        movab   setsav,r1
        !            32:        loadr   $0x1ffc,(r1)
        !            33:        movl    44(r1),fp
        !            34:        movl    48(r1),sp
        !            35:        jmp     *52(r1)
        !            36: 
        !            37:        .data
        !            38: setsav:        .space  14*4

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