Comments on: DK source code link http://www.dadhacker.com/blog/?p=1047 Instant wisdom about any random thing I feel like. Sat, 21 Aug 2010 16:53:56 -0700 http://wordpress.org/?v=2.8.6 hourly 1 By: Zac http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-26698 Zac Sun, 14 Sep 2008 06:02:15 +0000 http://www.dadhacker.com/blog/?p=1047#comment-26698 This stuff is fascinating... what an awesome retrospective. Kinda makes you wonder what sort of shenanigans occur with the incredibly complex code that's being written nowadays. This stuff is fascinating… what an awesome retrospective. Kinda makes you wonder what sort of shenanigans occur with the incredibly complex code that’s being written nowadays.

]]> By: Awasu » ドンキーコング http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-26695 Awasu » ドンキーコング Sun, 14 Sep 2008 05:56:35 +0000 http://www.dadhacker.com/blog/?p=1047#comment-26695 [...] [1] If you want the source code, get it here. There’s also a funny 6502R instruction guide in the comments (well, it’s funny if you’re a 6502R programmer ). [...] [...] [1] If you want the source code, get it here. There’s also a funny 6502R instruction guide in the comments (well, it’s funny if you’re a 6502R programmer ). [...]

]]> By: xot http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-26281 xot Tue, 09 Sep 2008 21:16:06 +0000 http://www.dadhacker.com/blog/?p=1047#comment-26281 I'm very much enjoying looking over your source code. I love Atari 6502 and this is my favorite home version of Donkey Kong. I used to play this so much, thanks for all the joy it's brought me. I’m very much enjoying looking over your source code. I love Atari 6502 and this is my favorite home version of Donkey Kong. I used to play this so much, thanks for all the joy it’s brought me.

]]> By: landon http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-25278 landon Tue, 02 Sep 2008 13:48:43 +0000 http://www.dadhacker.com/blog/?p=1047#comment-25278 The code (sadly) is not the production code, but some snapshot made a short time before the official release. There's stuff missing (some copy protection, maybe some other things). But it's useful for a couple of reasons: (a) if you get it to build, you've got a fairly workable version of DK, and (b) it's a great window into how games were done in the early 80s. The code has more comments than most games, more than even the Coin-op games whose source code I saw (e.g., Tempest). The Atari version of the original Pac-Man had exactly *two* comments. I'm not kidding. The code (sadly) is not the production code, but some snapshot made a short time before the official release. There’s stuff missing (some copy protection, maybe some other things). But it’s useful for a couple of reasons: (a) if you get it to build, you’ve got a fairly workable version of DK, and (b) it’s a great window into how games were done in the early 80s.

The code has more comments than most games, more than even the Coin-op games whose source code I saw (e.g., Tempest). The Atari version of the original Pac-Man had exactly *two* comments. I’m not kidding.

]]> By: Jack http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-25245 Jack Tue, 02 Sep 2008 09:00:56 +0000 http://www.dadhacker.com/blog/?p=1047#comment-25245 Here's a guide to the 6502R (the "top-secret" RISC version of the 6502 which, unfortunately, was never released to the marketplace. Something about problems with quality control...): Mnemonic Instruction AAC Alter All Commands AAR Alter At Random ASM Alphabetize, Starting in Middle BBSL Break for Bob Shields Lunch (long break!) BBW Branch Both Ways BCIL Branch Creating Infinite Loop BDC Break Down and Cry BEW Branch Either Way BH Branch and Hang BICO Branch If Computer On BICOF Branch If Computer On Fire BO Byte Operator BOB Branch On Bug BOM Branch On Mood BOPO Branch On Power Off BTNI Branch To Nowhere Immediate CG Convert to Garbage CLR Clobber Register CLRI Clobber Register Immediately CMD Compare Meaningless Data CNC Close, No Cigar CRN Convert to Roman Numerals CSF Circular Shift Forever CSL Curse and Swear Loudly DBZ Divide By Zero DMPE Decide to Major in Phys. Ed. DNL Do Nothing Left DNR Do Nothing Right DO Divide and Overflow DP Destroy Program DSTM Don't Shoot The Messenger DTRT Do The Right Thing DTVFL Destroy Third Variable From Left DWIM Do What I Meant DWMNS Do What I Mean, Not what I Say EAO Execute in Any Order EDF Execute "DEAD" Forever EEOI Execute Every Other Instruction EIOC Execute Invalid Op-Code ELE Execute Loop Eternally ENF Emit Noxious Fumes EO Execute Operator EPI Execute Programmer Immediately EROM Erase Read-Only Memory FLI Flash Lights Impressively GFD Go Forth and Divide GFM Go Forth and Multiply GRE Generate Random Error HCF Hang and Catch Fire IAI Ignore All Instructions IBP Insert Bug and Proceed JSOW Jump to Subroutine On Whim LPA Lead Programmer Astray MMI Munch Memory Immediate PFEM Print False Error Message PMI Perform Magic Immediate (for Systems Programmers) RDS Read Sideways RLI Rotate Left Indefinitely ROC Randomize Op Codes RPM Read Programmer's Mind RR Randomize Result RWST Rewind and Stretch Tape SAS Sit And Spin SDDO Swap Disc Driver Out SLP Sharpen Light Pen SLVDBDL Shift Left Variable, Drop Bits, Dim Lights SMR Skip on Meaningless Result SRZ Subtract and Reset to Zero SSD Seek and Scratch Disc SSJ Select Stacker and Jam SSRA Scream and Shout and Run About STA Store Anywhere STM Shoot The Messenger STROM Store in Read-Only Memory TDB Transfer and Drop Bits UER Update and Erase Record ZAR Zero Any Register (I first received this in an email in the early 90s on my Compuserve account and have kept it through countless hardware upgrades simply because it's so funny. Sorry the list is so long, but I hope you find it as amusing as I have. ) Here’s a guide to the 6502R (the “top-secret” RISC version of the 6502 which, unfortunately, was never released to the marketplace. Something about problems with quality control…):

Mnemonic Instruction
AAC Alter All Commands
AAR Alter At Random
ASM Alphabetize, Starting in Middle
BBSL Break for Bob Shields Lunch (long break!)
BBW Branch Both Ways
BCIL Branch Creating Infinite Loop
BDC Break Down and Cry
BEW Branch Either Way
BH Branch and Hang
BICO Branch If Computer On
BICOF Branch If Computer On Fire
BO Byte Operator
BOB Branch On Bug
BOM Branch On Mood
BOPO Branch On Power Off
BTNI Branch To Nowhere Immediate
CG Convert to Garbage
CLR Clobber Register
CLRI Clobber Register Immediately
CMD Compare Meaningless Data
CNC Close, No Cigar
CRN Convert to Roman Numerals
CSF Circular Shift Forever
CSL Curse and Swear Loudly
DBZ Divide By Zero
DMPE Decide to Major in Phys. Ed.
DNL Do Nothing Left
DNR Do Nothing Right
DO Divide and Overflow
DP Destroy Program
DSTM Don’t Shoot The Messenger
DTRT Do The Right Thing
DTVFL Destroy Third Variable From Left
DWIM Do What I Meant
DWMNS Do What I Mean, Not what I Say
EAO Execute in Any Order
EDF Execute “DEAD” Forever
EEOI Execute Every Other Instruction
EIOC Execute Invalid Op-Code
ELE Execute Loop Eternally
ENF Emit Noxious Fumes
EO Execute Operator
EPI Execute Programmer Immediately
EROM Erase Read-Only Memory
FLI Flash Lights Impressively
GFD Go Forth and Divide
GFM Go Forth and Multiply
GRE Generate Random Error
HCF Hang and Catch Fire
IAI Ignore All Instructions
IBP Insert Bug and Proceed
JSOW Jump to Subroutine On Whim
LPA Lead Programmer Astray
MMI Munch Memory Immediate
PFEM Print False Error Message
PMI Perform Magic Immediate (for Systems Programmers)
RDS Read Sideways
RLI Rotate Left Indefinitely
ROC Randomize Op Codes
RPM Read Programmer’s Mind
RR Randomize Result
RWST Rewind and Stretch Tape
SAS Sit And Spin
SDDO Swap Disc Driver Out
SLP Sharpen Light Pen
SLVDBDL Shift Left Variable, Drop Bits, Dim Lights
SMR Skip on Meaningless Result
SRZ Subtract and Reset to Zero
SSD Seek and Scratch Disc
SSJ Select Stacker and Jam
SSRA Scream and Shout and Run About
STA Store Anywhere
STM Shoot The Messenger
STROM Store in Read-Only Memory
TDB Transfer and Drop Bits
UER Update and Erase Record
ZAR Zero Any Register

(I first received this in an email in the early 90s on my Compuserve account and have kept it through countless hardware upgrades simply because it’s so funny. Sorry the list is so long, but I hope you find it as amusing as I have. )

]]> By: Jack http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-25240 Jack Tue, 02 Sep 2008 08:34:56 +0000 http://www.dadhacker.com/blog/?p=1047#comment-25240 Amazing! I am speechless. Amazing! I am speechless.

]]> By: Justin Mason http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-25238 Justin Mason Tue, 02 Sep 2008 08:23:26 +0000 http://www.dadhacker.com/blog/?p=1047#comment-25238 You know, the fact that the _original developer_ of a game like that can appear on a forum thread to provide commentary is simply amazing. hooray for the internets! You know, the fact that the _original developer_ of a game like that can appear on a forum thread to provide commentary is simply amazing. hooray for the internets!

]]> By: Paul Huff http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-25120 Paul Huff Mon, 01 Sep 2008 15:43:12 +0000 http://www.dadhacker.com/blog/?p=1047#comment-25120 So... What is the licensing state of this stuff? I mean has atari pretty much public domained it? That in and of itself might make for a good blog post, Landon :) So… What is the licensing state of this stuff? I mean has atari pretty much public domained it? That in and of itself might make for a good blog post, Landon :)

]]> By: Anon http://www.dadhacker.com/blog/?p=1047&cpage=1#comment-24943 Anon Sun, 31 Aug 2008 14:19:56 +0000 http://www.dadhacker.com/blog/?p=1047#comment-24943 Went to AtariAge and tried to download the source code. Got told to register to do so. Registered and activated the account but even after I logged in I was told I don't have permission to download it. Can someone mirror it? Went to AtariAge and tried to download the source code. Got told to register to do so. Registered and activated the account but even after I logged in I was told I don’t have permission to download it. Can someone mirror it?

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