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Article: 8348 of rec.games.corewar
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From: mooredav@cps.msu.edu (David Matthew Moore)
Newsgroups: rec.games.corewar
Subject: Re: ARRGHH!! My warrior won't work!
Date: 17 Feb 1998 17:10:03 GMT
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Margaret Yeager (GNRB30E@prodigy.com) wrote:
>Help! I wrote a warrior that I think might work well but it is supposedly
>to big by about 100 commands. Here is the code:
>;redcode-94
>;name DAT Murderer
>;author Josh Yeager
>;assert 1
>;strategy It initializes and then sweeps about 98% of the core with JMP 0,
>0
>;strategy bombs then it splits into 5 bombers and an imp-gate. The
>bombers
>;strategy immediately start DAT 0,0 bombing.
[code deleted]
>Can you figure out why pMARS says that it is more than 100 commands
>longer than it's supposed to? I made sure that 100 was maximum commands.
>Please don't use my code.


Here is the main culprit:

count   for    MAXLENGTH        mov count+6,count+3000
rof

The preprocessor will expand this into 100 instructions (or whatever else
MAXLENGTH is set to!)

Frankly, your code is nowhere near working. I've included a version below
which implements the strategy that you've outlined. It's not designed
to be a competitive warrior but at least it compiles and runs.

I would recommend that you check out some of the tutorials that are
out there, in addition to the FAQ.

BTW, I wouldn't worry too much about others using your code, even after you
do get something working. I can only vaguely remember one accusation of
code-stealing which happened over 5 years ago. I think most of the people
in rec.games.corewar really want to write their own original code;
cheating is just not in the good nature of this group.


;redcode-94
;name The DAT Murderer's Trial
;author Anonymous
;assert 1
;strategy It initializes and then sweeps about 98% of the core with JMP 0, 0
;strategy bombs then it splits into 5 bombers and an imp-gate. The bombers 
;strategy immediately start DAT 0,0 bombing. 

org start  ; specify execution start

step equ 98  ; for the preprocessor only

jptr    dat 0, 0

jbomb   jmp 0, 0

start   mov jbomb, < jptr
        djn    -1, # (CORESIZE*98)/100  ; calculated by the preprocessor

    i for 5
        spl bomber&i, 0
    rof
        jmp impgate, 0

gate    dat 0,0  ; this will be changed every cycle after bombers are killed

    for 4
        dat 0,0
    rof

impgate jmp 0, > gate  ; this will be the only survivor of bombing

        dat 0,0
datbomb dat 0,0

i for 5
    bomber&i  mov datbomb, step+1
              add #step, -1
	      jmp -2, 0
rof

end