From news-rocq.inria.fr!univ-lyon1.fr!jussieu.fr!math.ohio-state.edu!usc!elroy.jpl.nasa.gov!jlayland Tue May 10 13:12:02 1994
Article: 772 of rec.games.corewar
Path: news-rocq.inria.fr!univ-lyon1.fr!jussieu.fr!math.ohio-state.edu!usc!elroy.jpl.nasa.gov!jlayland
From: jlayland@kilroy.jpl.nasa.gov (James Layland)
Newsgroups: rec.games.corewar
Subject: ivscan6
Date: 9 May 1994 21:09:05 GMT
Organization: Jet Propulsion Laboratory, Pasadena, CA  USA
Lines: 215
Message-ID: <2qm8ph$1jc@elroy.jpl.nasa.gov>
NNTP-Posting-Host: 128.149.63.2

After Michael's posting on Pyramid promised the end of the domination
of the Big Hill by imps, I thought I would hasten the end along a 
little.  ivscan6 is now in first place on the Big Hill by about 20 points.
It uses a Leprechaun-style bomber/scanner.  If the scanner finds something,
it erases the A- and B-fields and compares it to 1) empty core, and 
2) MOV #0, 0.  Case 1 has probably found an increment or decrement, and
continues the bomb/scan.  Case 2 has found a '94 style imp, and 
initiates a spiral stun, followed by a core clear. All other cases are
assumed to be fangs (which is a good guess with the current makeup of 
the big hill) and the program launches an anti-vamp paper.  The bomb/scan
makes ivscan6 competitive with scanning programs, and the anti-imp/vamp
have a field day with the current strategies on the big hill.  The
program is small enough to avoid quick-scans in Demand/Pyramid.  The
only program that soundly defeats ivscan6 is a pure stone (which loses
to everything else except scanners).

Like my last high-flying program (FlyPaper) from a year ago, ivscan6 is
far too dependent on the current makeup of the hill to have much longevity,
but it's fun for now.

Note to EBS tournament participants: there are a couple lines changed
from my round 3 entry.  The line labeled "kill" in my tournament entry
is gone from the start of the bombing loop (where it bombed DAT statements)
and has moved to the start of the anti-vamp (where it may actually bomb
an enemy program).

Here is a current list of scores, followed by redcode.


ivscan6 wins: 64
Demand-55440 wins: 25	(vamp w/ quick-scan)
Ties: 11
 
ivscan6 wins: 48
Pyramid v2.0 wins: 25	(vamp w/ quick-scan)
Ties: 27
 
ivscan6 wins: 74
Request-55440 wins: 14	(vamp)
Ties: 12
 
ivscan6 wins: 60
Variation G-1 wins: 23	(stone/spiral)
Ties: 17
 
ivscan6 wins: 49
Squint wins: 44		(b-scanning vamp)
Ties: 7
 
ivscan6 wins: 38
Vanity IIx wins: 50	(S-J bombing b-scanner)
Ties: 12
 
ivscan6 wins: 51
Scanalyzer wins: 43	(b-scanning vamp)
Ties: 6
 
ivscan6 wins: 66
Splash 1 wins: 19	(stone/spiral)
Ties: 15
 
ivscan6 wins: 45
Rave B4.1 wins: 48	(carpet bombing cmp-scan)
Ties: 7
 
ivscan6 wins: 45
Sissy wins: 35		(hybrid stone/spiral/b-scanning vamp)
Ties: 20
 
ivscan6 wins: 77
Lucky 13 wins: 13	(stone/spiral)
Ties: 10
 
ivscan6 wins: 64
Sauron v3.4 wins: 20	(stone/spiral)
Ties: 16
 
ivscan6 wins: 72
Der Zweite Blitzkrieg - 94x wins: 14	(stone/spiral)
Ties: 14
 
ivscan6 wins: 61
BigImps wins: 14	(stone/spiral)
Ties: 25
 
ivscan6 wins: 18
Lump wins: 70		(stone)
Ties: 12
 
ivscan6 wins: 80
Virus wins: 18		(vamp)
Ties: 2
 
ivscan6 wins: 17
Deck of Many Things wins: 1	(paper/stone/etc.)
Ties: 82
 
ivscan6 wins: 68
Tail of the Twister wins: 9	(stone/spiral)
Ties: 23
 
ivscan6 wins: 42
Imperfection v2.4 wins: 21	(stone/spiral)
Ties: 37
 
ivscan6 wins: 28
Ties: 38
 
Your overall score: 177.190476
 
ivscan6 has been pushed off the ICWS '94 Experimental (Big) hill.
The current ICWS '94 Experimental (Big) hill:
 #  %W/ %L/ %T                      Name               Author   Score     Age
 1  52/ 27/ 21                   ivscan6            J.Layland     177       1
 2  47/ 37/ 16              Demand-55440 M. Constant & B. Tho     157      23
 3  47/ 38/ 15              Pyramid v2.0     Michael Constant     156       7
 

Sorry for that bit of self-congratulation, but how often will I have
a warrior that beats all but 3 of the programs on the hill?
 

;redcode-94x
;name ivscan6
;author J.Layland

;kill ivscan6
;strategy EBS Tournament round 3 entry
;strategy Leprechaun-style bomb/scan
;strategy Scanner tries to identify imps/vamps and run special-purpose
;strategy    anti-imp/vamp modules.
 
;macro

 	org	loop  

step	equ	13 

scan	equ	27725	; If I bomb myself, I'm probably dead anyway
			

impsize	mov.i	<loc, #0
stun	mov	split, @loc
	add	impsize, loc
	djn	stun,	#1000 
 
split	spl	#0,	<-59	 
	mov	gate, <-50
	jmp	-1, <-61


for 30
	dat 0,0
rof

gate	dat 	<-60, <-61
imp	mov.i 	#0, 0

for 30
	dat 0,0
rof	
 

gate	dat 	<-60, <-61
imp	mov.i 	#0, 0

for 30
	dat 0,0
rof	
 
;bombing routine

;kill	mov	b1, @loc
loop	add	#step, target
 	mov	b1, @target
target 	jmz.f	loop, @224

; scan routine
		; if target contains "x" we want to look at target+x+scan
loc 	equ 	target+scan

	mov	target, loc
		; target+scan points at target+scan+x
;xx break
	sub	@loc,	@loc
	sne	@loc, core	; ignore incs/decs
	jmp	loop	; kill	
	sne	@loc,	imp
	jmp	impsize
	jmp	launch		; assume it's a fang

	dat 0,0
	dat 0,0
core	dat 0,0

for 40
	dat 0,0
rof

launch	mov	b1, @loc
	spl	1		; anti-vamp paper
	spl	1
	spl	1
	
paper	mov 	#8, 0			 
copy	mov 	<-1, <ptr	; make copy		 
ptr	spl 	@0, 6301	;start new copy  
	sub 	@avamp,<avamp	; subtract pointers going backwards
avamp	mov 	b1,>100	; now bomb forward to kill jump	
	mov 	b1,>avamp	
        jmz 	paper, paper
b1	dat	<34117, <scan	; might take out an imp if I'm (very) lucky
-- 
James Layland
jlayland@grissom.jpl.nasa.gov