;redcode-94nop
;name Sputnik
;author John Metcalf
;strategy qscan -> paper with satellite
;assert CORESIZE==8000

        org    qscan 

        step   equ 3416 
        dist   equ 1234 
        bpos   equ satel+4-dist+1 

sputnik spl    1,        <1000    ; 4 parallel processes 
        spl    1,        <2000 

        mov    <boot,    {boot 
boot    jmp    bpos,     paper+4 

paper   spl    step 
        mov    >paper,   }paper 
        mov    <launch,  {launch 
launch  djn.f  step+dist,{dist 

satel   spl    #100,     <2 
        mov.i  #1,       <1 
        djn    satel,    #1000 

        for    59 
        dat    0,        0 
        rof 

        qfac   equ 369 
        qdec   equ 3730 ; qdec = (1+qfac^-1) mod 8000 

        qa     equ (qfac*(qtab0-1-qptr)+1) 
        qb     equ (qfac*(qtab0-qptr)+1) 
        qc     equ (qfac*(qtab1-1-qptr)+1) 
        qd     equ (qfac*(qtab1-qptr)+1) 
        qe     equ (qfac*(qtab1+1-qptr)+1) 
        qf     equ (qfac*(qtab2-qptr)+1) 

        qtime  equ 18 
        qstep  equ -7 
        qgap   equ 87 

qdecode mul.b  *q1,          qptr 
q0      sne    <qtab0,       @qptr 
q1      add.b  qtab1,        qptr 
q2      mov    qtab2,        @qptr 
qptr    mov    qtab2,        *qdec 
        add    #qstep,       qptr 
        djn    q2,           #qtime 
        jmp    sputnik,      qc 
qtab1   dat    4000,         qd 
        dat    4000,         qe 

qscan   sne    qptr+qdec*qe, qptr+qdec*qe+qe 
        seq    <qtab1+1,     qptr+qdec*(qe-1)+qe-1 
        jmp    qdecode,      }q1 
        sne    qptr+qdec*qb, qptr+qdec*qb+qd 
        seq    <qtab0,       qptr+qdec*(qb-1)+qd 
        jmp    qdecode,      {qdecode 
        sne    qptr+qdec*qa, qptr+qdec*qa+qd 
        seq    <qtab0-1,     qptr+qdec*(qa-1)+qd 
        djn.a  qdecode,      {qdecode 
        sne    qptr+qdec*qf, qptr+qdec*qf+qd 
        seq    <qtab2,       qptr+qdec*(qf-1)+qd 
        jmp    qdecode,      }qdecode 
        sne    qptr+qdec*qc, qptr+qdec*qc+qc 
        seq    <qtab1-1,     qptr+qdec*(qc-1)+qc-1 
        jmp    qdecode,      {q1 
        sne    qptr+qdec*qd, qptr+qdec*qd+qd 
        seq    <qtab1,       qptr+qdec*(qd-1)+qd-1 
        jmp    qdecode,      qa 
qtab0   jmp    sputnik,      qb 
qtab2   dat    qgap,         qf