Return to tmtoggle.s CVS log

Up to [CSRG BSD Unix] / 41BSD / 4.0.upgrade / sys / mdec

Annotation of 41BSD/4.0.upgrade/sys/mdec/tmtoggle.s, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Prototype toggle in bootstrap code for tm type tapes.
                      3:  * If on anything but a 780 with the drive on uba0
                      4:  * this will have to be repaired by patching uba and umem.
                      5:  */
                      6: begin:
                      7:        movl    uba,r1
                      8:        movl    $0x80200000,0x800(r1)
                      9:        clrl    0x804(r1)
                     10:        movl    umem,r2
                     11:        bisl2   $0172520,r2
                     12:        mnegw   $512,4(r2)
                     13:        clrw    6(r2)
                     14:        movw    $03,2(r2)
                     15:        halt
                     16:        .align  2
                     17: uba:   .long   0x20006000
                     18: umem:  .long   0x2013e000

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