• [88] Permafrost

    From John Metcalf@21:1/5 to All on Mon Jan 15 12:07:17 2024
    Here's the code for my latest '88 warrior - a pair of papers, one with a
    vortex imp launcher, the other with a Gymnosperm Trickery style clear.
    It originally had an anti-imp clear (SPL 0,<2 / MOV 0,<1 / DJN -2,#XXX)
    but GT seems more effective.

    ;redcode
    ;name Permafrost
    ;author John Metcalf
    ;strategy paper/imp + paper/resin
    ;assert CORESIZE==8000

    ; qscan - 36 scans in 48 instructions

    qfirst equ (qp2+2*qstep)
    qdist equ qfirst+130
    qstep equ 260

    qi equ 7
    qr equ 7

    qbomb dat <qi/2-qi*qr, <qi*qr-qi/2

    qa equ qstep*16
    qb equ qstep*5+2
    qc equ qstep*10
    qd equ qstep*2
    qe equ qstep*1

    qscan cmp qdist+qc, qfirst+qc
    jmp qfast, <qa
    cmp qdist+qe+qd, qfirst+qe+qd
    qp1 jmp <qfast, <qc
    qp2 cmp qdist, qfirst
    qp3 jmp qskip, <qe

    cmp qdist+qb, qfirst+qb
    q1 djn qfast, #qp1

    cmp qdist+qd+qc, qfirst+qd+qc
    jmp qslow, <qfirst+qd+qc+4
    cmp qdist+qd+qb, qfirst+qd+qb
    x1 jmp qslow, <q1
    cmp qdist+qc+qc, qfirst+qc+qc
    q2 djn qslow, #qp2
    cmp qdist+qd, qfirst+qd
    jmp qslow, <qfast
    cmp qdist+qa, qfirst+qa
    jmp q1, <q1

    cmp qdist+qa+qd, qfirst+qa+qd
    jmp x1, <q1
    cmp qdist+qc+qb, qfirst+qc+qb
    jmp q2, <q1
    cmp qdist+qe+qd+qc,qfirst+qe+qd+qc
    jmp qslower, <qfirst+qe+qd+qc+4
    cmp qdist+qe+qd+qb,qfirst+qe+qd+qb
    jmp qslower, <q1
    cmp qdist+qe+qc+qc,qfirst+qe+qc+qc
    jmp qslower, <q2
    cmp qdist+qd+qd+qc,qfirst+qd+qd+qc
    q3 djn qslower, #qp3
    cmp qdist+qe+qc, qfirst+qe+qc
    jmp <qfast, <q2
    cmp qdist+qd+qd, qfirst+qd+qd
    jmp <qfast, <q3
    cmp qdist+qd+qd+qb,qfirst+qd+qd+qb
    slt <q3, <q1

    jmz warr, qdist+qe+qd+qc+10

    qslower add @q3, @qslow
    qslow add @q2, qkil
    qfast add @q1, @qslow

    qskip cmp <qdist+qstep+50, @qkil
    jmp qloop, <1234

    add #qdist-qfirst, qkil
    qloop mov qbomb, @qkil
    qkil mov <qfirst+qstep+50, <qfirst
    sub #qi, @qloop
    djn qloop, #qr+2

    warr spl 1, <2000
    spl 1, <3000
    spl 1, <4000
    mov <resin+4, <rboot
    mov <resin+4, <iboot
    iboot spl @0, idist
    rboot jmp @0, rdist

    idist equ 6692 ; 1000
    rdist equ 5188 ; 635
    pstepa equ 848 ; 4533
    pstepb equ 1389 ; 6007
    pstepc equ 1833 ; 5278
    pstepd equ 4050 ; 7467
    dpos equ 2180 ; 7875
    rpos equ 7452 ; 3524
    istep equ 2667
    proc equ 8

    ; paper with vortex launch similar to Evil Spirit

    mov <proc, <papera
    papera spl @0, pstepa
    mov <proc, <paperb
    paperb spl @0, pstepb
    spl 0, <-125
    add #istep, launch
    launch jmp @0, imp-istep*proc
    imp mov 0, istep

    ; paper with resin (Gymnosperm Trickery style clear)

    mov <proc, <paperc
    paperc spl @0, pstepc
    mov <proc, <paperd
    paperd spl @0, pstepd
    resin spl 0, <resin+dpos
    mov 1, <1
    mov <0, <rpos
    djn resin, <resin+dpos

    end qscan

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    * Origin: fsxNet Usenet Gateway (21:1/5)