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Text File | 1993-05-20 | 23.0 KB | 399 lines

PACIFIC WAR AIRCRAFT HEX-EDITING DATA 5-20-93 PURPOSE: The information provided enables users to change aircraft data using DOS Debug. Suggestions are also provided on how to create new aircraft and impliment their production. WARNING: Make backup copies of all files being altered. Use of this infor- mation is at your own risk. I assume no responsibility for modifications which you make to your files. SSI neither supports nor appreciates hex-editing of their program files, so don't ask them for help. LOCATION OF DATA: Aircraft data is found in the following files: SAVE?. OBC41. OBC42. OBSOL. OBPHIL. and OBMARI. ADDRESSES OF DATA: A/C NAME D ADDRESSES-> U A M R V A A A N C B I U A R I L T R E N L A L A C P Y O V N O N I B O O START OF P L E O A G T L S O AIRCRAFT E E R N D E Y E T L NAME F2A C145 C1A9 C20D C271 C2D5 C339 C39D C401 C466-7 BBDA F4F C146 C1AA C20E C272 C2D6 C33A C39E C402 C468-9 BBE8 F2M C147 C1AB C20F C273 C2D7 C33B C39F C403 C46A-B BBF6 F4U C148 C1AC C210 C274 C2D8 C33C C3A0 C404 C46C-D BC04 F6F C149 C1AD C211 C275 C2D9 C33D C3A1 C405 C46E-F BC12 GLADTR C14A C1AE C212 C276 C2DA C33E C3A2 C406 C470-1 BC20 FULMAR C14B C1AF C213 C277 C2DB C33F C3A3 C407 C472-3 BC2E SEAFIR C14C C1B0 C214 C278 C2DC C340 C3A4 C408 C474-5 BC3A SB2U C14D C1B1 C215 C279 C2DD C341 C3A5 C409 C476-7 BC4A SBD C14E C1B2 C216 C27A C2DE C342 C3A6 C40A C478-9 BC58 SB2C C14F C1B3 C217 C27B C2DF C343 C3A7 C40B C47A-B BC66 TBD C150 C1B4 C218 C27C C2E0 C344 C3A8 C40C C47C-D BC74 TBF C151 C1B5 C219 C27D C2E1 C345 C3A9 C40D C47E-F BC84 TBM C152 C1B6 C21A C27E C2E2 C346 C3AA C40E C480-1 BC90 SWDFSH C153 C1B7 C21B C27F C2E3 C347 C3AB C40F C482-3 BC9E ALBCRE C154 C1B8 C21C C280 C2E4 C348 C3AC C410 C484-5 BCAC BRRCDA C155 C1B9 C21D C281 C2E5 C349 C3AD C411 C486-7 BCBA FIRFLY C156 C1BA C21E C282 C2E6 C34A C3AE C412 C488-9 BCC8 P-36 C157 C1BB C21F C283 C2E7 C34B C3AF C413 C48A-B BCD6 P-39 C158 C1BC C220 C284 C2E8 C34C C3B0 C414 C48C-D BCE4 P-40 C159 C1BD C221 C285 C2E9 C34D C3B1 C415 C48E-F BCF4 P-38F C15A C1BE C222 C286 C2EA C34E C3B2 C416 C490-1 BD00 P-38J C15B C1BF C223 C287 C2EB C34F C3B3 C417 C492-3 BD0E P-47 C15C C1C0 C224 C288 C2EC C350 C3B4 C418 C494-5 BD1C P-51 C15D C1C1 C225 C289 C2ED C351 C3B5 C419 C496-7 BD2A * * * * * * * * * * * CA-3 C15F C1C3 C227 C28B C2EF C353 C3B7 C41B C49A-B BD46 CA-12 C160 C1C4 C228 C28C C2F0 C354 C3B8 C41C C49C-D BD54 HURRI C161 C1C5 C229 C28D C2F1 C355 C3B9 C41D C49E-F BD62 SPIT C162 C1C6 C22A C28E C2F2 C356 C3BA C41E C4A0-1 BD70 BEAFTR C163 C1C7 C22B C28F C2F3 C357 C3BB C41F C4A2-3 BD7E BLNHM C164 C1C8 C22C C290 C2F4 C358 C3BC C420 C4A4-5 BD8C BEFORT C165 C1C9 C22D C291 C2F5 C359 C3BD C421 C4A6-7 BD9A WIMPEY C166 C1CA C22E C292 C2F6 C35A C3BE C422 C4A8-9 BDA8 VLDBST C167 C1CB C22F C293 C2F7 C35B C3BF C423 C4AA-B BDB6 VNGNCE C168 C1CC C230 C294 C2F8 C35C C3C0 C424 C4AC-D BDC4 B-18 C169 C1CD C231 C295 C2F9 C35D C3C1 C425 C4AE-F BDD2 A-20 C16A C1CE C232 C296 C2FA C35E C3C2 C426 C4B0-1 BDE0 A-26 C16B C1CF C233 C297 C2FB C35F C3C3 C427 C4B2-3 BDEE B-25 C16C C1D0 C234 C298 C2FC C360 C3C4 C428 C4B4-5 BDFC B-26 C16D C1D1 C235 C299 C2FD C361 C3C5 C429 C4B6-7 BE0A B-17 C16E C1D2 C236 C29A C2FE C362 C3C6 C42A C4B8-9 BE18 B-24 C16F C1D3 C237 C29B C2FF C363 C3C7 C42B C4BA-B BE26 B-29 C170 C1D4 C238 C29C C300 C364 C3C8 C42C C4BC-D BE34 SDRLND C171 C1D5 C239 C29D C301 C365 C3C9 C42D C4BE-F BE42 HUDSON C172 C1D6 C23A C29E C302 C366 C3CA C42E C4C0-1 BE50 PBY C173 C1D7 C23B C29F C303 C367 C3CB C42F C4C2-3 BE5E C-47 C174 C1D8 C23C C2A0 C304 C368 C3CC C430 C4C4-5 BE6C DH-84 C175 C1D9 C23D C2A1 C305 C369 C3CD C431 C4C6-7 BE7A BLN IF C176 C1DA C23E C2A2 C306 C36A C3CE C432 C4C8-9 BE88 MOSQTO C177 C1DB C23F C2A3 C307 C36B C3CF C433 C4CA-B BE96 P-61 C178 C1DC C240 C2A4 C308 C36C C3D0 C434 C4CC-D BEA4 MARTIN C179 C1DD C241 C2A5 C309 C36D C3D1 C435 C4CE-F BEB2 * * * * * * * * * * * A5M C181 C1E5 C249 C2AD C311 C375 C3D9 C43D C4DE-F BF22 A6M2 C182 C1E6 C24A C2AE C312 C376 C3DA C43E C4E0-1 BF30 A6M5 C183 C1E7 C24B C2AF C313 C377 C3DB C43F C4E2-3 BF3E A6M8 C184 C1E8 C24C C2B0 C314 C378 C3DC C440 C4E4-5 BF4C D3A C185 C1E9 C24D C2B1 C315 C379 C3DD C441 C4E6-7 BF5A D4Y C186 C1EA C24E C2B2 C316 C37A C3DE C442 C4E8-9 BF68 B5N C187 C1EB C24F C2B3 C317 C37B C3DF C443 C4EA-B BF76 B6N C188 C1EC C250 C2B4 C318 C37C C3E0 C444 C4EC-D BF84 B7A C189 C1ED C251 C2B5 C319 C37D C3E1 C445 C4EE-F BF92 KI27 C18A C1EE C252 C2B6 C31A C37E C3E2 C446 C4F0-1 BFA0 KI43I C18B C1EF C253 C2B7 C31B C37F C3E3 C447 C4F2-3 BFAE KI44 C18C C1F0 C254 C2B8 C31C C380 C3E4 C448 C4F4-5 BFBC KI61 C18D C1F1 C255 C2B9 C31D C381 C3E5 C449 C4F6-7 BFCA KI84 C18E C1F2 C256 C2BA C31E C382 C3E6 C44A C4F8-9 BFD8 NIK2 C18F C1F3 C257 C2BB C31F C383 C3E7 C44B C4FA-B BFE6 J2M C190 C1F4 C258 C2BC C320 C384 C3E8 C44C C4FC-D BFF4 KI45 C191 C1F5 C259 C2BD C321 C385 C3E9 C44D C4FE-F C002 J1N1 C192 C1F6 C25A C2BE C322 C386 C3EA C44E C500-1 C010 KI102 C193 C1F7 C25B C2BF C323 C387 C3EB C44F C502-3 C01E KI43II C194 C1F8 C25C C2C0 C324 C388 C3EC C450 C504-5 C02C KI32 C195 C1F9 C25D C2C1 C325 C389 C3ED C451 C506-7 C03A KI51 C196 C1FA C25E C2C2 C326 C38A C3EE C452 C508-9 C048 KI48 C197 C1FB C25F C2C3 C327 C38B C3EF C453 C50A-B C056 KI21 C198 C1FC C260 C2C4 C328 C38C C3F0 C454 C50C-D C064 KI49 C199 C1FD C261 C2C5 C329 C38D C3F1 C455 C50E-F C072 KI67 C19A C1FE C262 C2C6 C32A C38E C3F2 C456 C510-1 C080 G3M C19B C1FF C263 C2C7 C32B C38F C3F3 C457 C512-3 C08E G4M C19C C200 C264 C2C8 C32C C390 C3F4 C458 C514-5 C09C P1Y C19D C201 C265 C2C9 C32D C391 C3F5 C459 C516-7 C0AA * * * * * * * * * * * KI46 C1A2 C206 C26A C2CE C332 C396 C3FA C45E C520-1 C0F0 H6K C1A3 C207 C26B C2CF C333 C397 C3FB C45F C522-3 C0FE H8K C1A4 C208 C26C C2D0 C334 C398 C3FC C460 C524-5 C10C KI54 C1A5 C209 C26D C2D1 C335 C399 C3FD C461 C526-7 C11A KI57 C1A6 C210 C26E C2D2 C336 C39A C3FE C462 C528-9 C128 DEFINITION OF DATA: ROLE: (IN HEX) 00 FIGHTER 01 FIGHTER-BOMBER 02 DIVE-BOMBER PLUG THESE VALUES INTO LISTED 03 TORPEDO-BOMBER ADDRESS TO CHANGE A/C ROLES 04 TACTICAL BOMBER 05 HEAVY BOMBER 06 TRANSPORT 07 PATROL MANUEVER CANNON LOAD CONVERT DESIRED VALUE INTO HEX AND PLUG IT INTO RANGE CORRESPONDING ADDRESS DURABILITY COST AVAILABILITY: VALUES IN THESE LOCATIONS (AFTER BEING CONVERTED TO DECIMAL) ARE THE NUMBER OF WEEKS FROM JANUARY 1, 1942 BEFORE THE AIRCRAFT IS AVAILABLE FOR PRODUCTION. EXAMPLE: P-51 AVAILABILTY ADDRESS C3B5 HAS A VALUE OF 84 WHICH IS 130 DECIMAL. 130 WEEKS DIVIDED BY 52 = 2 YEARS 26 WEEKS FROM JAN '42 MAKES THE P-51 AVAILABLE IN JUNE '44. A VALUE OF 00 INDICATES A/C IS AVAILABLE IN DECEMBER '41. POOL: INDICATES NUMBER OF AIRCRAFT REPLACEMENTS AVAILABLE. ANNOTATION INDICATES TWO ADDRESSES IN HIGH BIT - LOW BIT FORMAT ie IN OBC41. THE F2A STARTS WITH 200 AIRCRAFT IN RESERVE. ADDRESS C466 AND C467 READ C8 00 RESPECTIVILY. REVERSE THE ORDER AND PUT TOGETHER TO READ 00C8 OR 200. HOW TO EDIT USING DEBUG: 1. I do not recommend editing the order of battle files, so if you want to edit data, start the scenario you want to play with the BOTH HUMAN option and saveA (or whatever save letter you want). Perform desired editing and start saved gamed playing whatever side you want. For the following examples I assume you have utilised saveA. 2. Ensure DEBUG is in the currently path or copy DEBUG.EXE directly into your Pacific War directory. 3. Go into your Pacific War directory and type debug saveA <return> at the > prompt. You'll get a new prompt ( - ) confirming you are in DEBUG. 4. Determine the address of the data you wish to change from the table above and type e followed by the address at the - prompt and <return>. The address and the current byte value will be displayed. (looks like XXXX:yyyy zz. where XXXX can be ignored, yyyy is the address, and zz. is the hex value at that address) Type in the new byte value you want following the period (.) and <return>. 5. At the - prompt, type w <return> to save the new value to your saveA file. 6. Type quit and <return> to get out of debug. 7. See your DOS manual for a more detailed explanation of the use of DEBUG. EXAMPLE: You want to decrease the range of the G4M Betty from 9 to 6 so that units so equipped will only attack targets within range of escorting A6M2 Zero fighters (which have a range of 6). The table shows that the byte controlling the G4M range is C32C. The editing process could look like this: c:>path=c:\dos <return> c:>cd\PACWAR <return> c:PACWAR> c:PACWAR>debug savea <return> (start debug) -e c32c <return> (tells debug to edit HEX c32c) 0A82:C32C 09. (type 06, the new range, following the 09. so the whole line will look like: 0A82:C32C 09.06 and <return>) -w <return> (tells debug to saves edit to disk) WRITING XXXX BYTES (this is displayed as debug writes the new data to disk) -quit <return> (if you want to get out of debug) c:PACWAR> (debug returns you to your PW directory) Clear as mud, eh? Note that multiple edit (e) commands can be performed before saving (w). And of course all values must be in hex. CREATING NEW AIRCRAFT A limited number of new aircraft types can be created by editing not only the performance data but also by editing the existing aircraft name into a new aircraft name and by coverting existing factories to this new type. The reason the number is limited is because the process requires using existing aircraft "space" in the data array. Using the"space" eliminates the existing aircraft, so one must be sure that no aircraft data and name being edited are currently in use. If they are, they will become the new aircraft. Example: You want to bring the F8F Bearcat into production. If you edit the FM2 Wildcat data to that of the F8F, all FM2 units instantly become F8F's. This is further complicated by the program's automatic upgrading of air units and factories. If you choose to use the F2A Buffalo "space" for the F8F, the program will automatically "upgrade" the factories and the air units to F4F Wildcats. Of course, if you are using ALT-N with version 1.x10 or 1.1 you don't have to contend with this. On the other hand, it means you have to have human control of the other sides factories, too. The way around this is only to use what I call dead-end aircraft types for conversion. These are the aircraft factories and types which the program will not upgrade. There are plenty to use for the Allies. The Japanese are much more limited. These are most of the dead-end aircraft types I have found and would consider using: ALLIED JAPANESE Blenheim IF Ki-43 II B18 J1N1 Martin 139 Ki-51 *Indicates can be used Ca-12 Ki-57 for carrier-based a/c Vildebeast B6N*~ FM2* A6M5*~ ~Indicates dependent on Barracuda* Ki-61~ factory location Firefly* Seafire* Spitfire Of course, high performance late-war aircraft which are the end product of continued factory upgrade (P-38J, P-47, P-51, Ki-84, Ki-102, B7A, etc) could be used, but implimentation would be unrealistic because of their being in use. IMPORTANT: only existing carrier-based aircraft can be used to make new carrier planes. Whether a plane can be carrier-based seems to be controlled by its position in the Data Array. Note the first 18 Allied a/c types and the first 9 Japanese aircraft types are CV-based. Also note that I haven't figured out how to change the plane symbology yet. Thus if you make a new fighter using a bomber's space in the array the game symbology will look like the bomber you replaced (remember the a/c role is what controls how a unit acts) PROCESS SUMMARY: 1. Determine which dead-end plane you are going to edit over. Make sure none are currently assigned to existing air units and no factories are producing them. New CV based A/C must use CV type dead-end palnes. 2. Calculate performance data of the new a/c and convert to hex. 3. Edit over the existing a/c's name with the new a/c's name. 4. Zero out the old a/c's pool (no cheating by coverting old into new) 5. Edit the new planes data over the old data. (if you want to put a/c into immediate production, set availability value to 00) 6. Go back into the game and convert existing factories to the new type, wait for the tool-up delay, and when production starts and the pool builds, convert existing units to the new type. OVERWRITING OLD AIRCRAFT NAMES: This is real easy if you are using a hex-editor like Norton DISKEDIT (just use the FIND command), but can be done with a little effort using DEBUG. To the right of the the POOL address in the a/c data, I have listed the 1st byte of the aircraft's name. Start debug normally for the file you are altering and at the - prompt type d XXXX <return> where XXXX is the listed 1st name byte address. You will see a dump of the file showing the hex values and the ascii symbology you can read to the right. Determine each old name letters' hex address, covert the new names letters to hex and use the "e" command to edit the file as described above. Example: Edit FM2 Wildcat to F8F Bearcat c:pacwar>debug savea <return> -d BBF6 <return> (the following will be displayed: XXXX:BBF0 46 4d - 32 20 57 69 6c 64 63 61 cat.".FM2 Wildca XXXX:BC00 74 00 fc 16 46 34 55 20 - 43 6f 72 73 61 69 72 00 t.".F4U Corsair. use the 'e' command to edit each individual byte of "FM2 Wildcat" After enter the the first replacement value, use <space bar> instead of <return> and DEBUG will move you to the next byte to edit. What you will end up with will look like this: -e BBF6 <return> XXXX:BBF6 46.46 4d.38 32.46 20.20 57.42 69.65 6c.61 64.72 63.63 61.61 XXXX:BBc0 74.74 <return> Be sure to save with "w". Use the dump "d" to see the results: -d bbf6 XXXX:BBf0 46 38 - 46 20 42 65 61 72 63 61 cat.".F8F Bearca XXXX:BC00 74 00 FC 16 46 34 55 20 - 43 6F 72 73 61 69 72 00 t.".F4U Corsair. This example was easy because the name lengths are the same. If the name you put in is shorter, you have to add filler. The first filler after the a/c name is 00. The filler prior to the next name is 16 (hex). For in-between, work backwords from the 16, filling back up to the 00 with whatever is needed. What is used for "what is needed?" The longest filler I spotted was following Hudson 00 15 a4 0f f9 fc 16. Note the 00 and the 16. And of course, the name use cannot be longer than 14 characters, in which case no filler would be needed. Also note that spaces between word in the name are always 20 (Hex) After doing the name, the role, manuever, cannon, load, etc is easy - just edit the addresses in the table for the FM2. How 'hot' you decide to make the planes is up to you. My rationale for making changes to the aircraft data array was to make the wargame more historical and to give the player more latitude regarding actual a/c use and to add new planes for extended wars. For example: ROLE - The Ki-32 and Ki-51 were designed to be operated from forward airfields in support of Army operations. As TAC-BOMBERS they are limited to level 4 fields -scarce in China. So change their role to 02 (dive-bomber) and they can operate out of the small fields. Think that aircraft losses are unreal- istically high? Change all fighters (00) to fighter-bombers (01) and cut out that extra post-escort fighter sweep. Think that the Beaufighter should have been used as a night-fighter like it was in Europe? Change it to a fighter and put on night ops. MANUEVERABILITY - This is an area of great subjectivity, but I feel many planes are over or under-rated. For example, the KI-84 was as fast as a P-51 and more manueverable, I rate it 24. All the A6m and Ki-43 types are too close to the better-late war aircraft, so I lower them 1. The F4U is almost as fast as a P-47 and definately more manueverable, so rate it a 23 also. I could go on, but you see my rational. CANNON - Upgrade the Ki-44 and Ki-61 to 12 in September 1943 to show actual improvements in armanents. Drop the P-39 to 8 to show that the 37mm didn't work. Drop the the P-51 to 8 during 1944 to represent the P-51B actually used. LOAD - The Ki-44 wasn't designed to carry bombs: load=00. Tired of Zero's attacking TF's only to get blasted by AA while strafing, sling a 250 kg bomb (load=06) onto give them a reason for dying. RANGE - A real problem in PACWAR. Tired of G4M's getting mauled by U.S. CAP because they attack without escort? Reduce their range to 4-6, depending on the primary escort fighter range. I know, then you cannot attack shipping at Guadalcanal from Rabaul like was historically done. It's a compromise until Gary changes the .EXE file (if he does). Likewise, maybe the B-25 should have a range of 6 so it can attack shipping at Rabaul from Dobodura (Buna) like what happened in October 1943. And it is frustrating not to have a CAP only command to stop wasteful offensive operations, chopping the range of certain planes to 1 can simulate it. Enable the Japanese to use their superior CV a/c range by cutting the SBD range to 02 (and it really couldn't carry a 1000 lb bomb even that far!). DURABILITY - Really inaccurate to have the in-line engined P-51 be rated at 33 while the heavier and radial-engined F6F and F4U at rated at 26 and 27. Drop the P-51 to 28 and increase the F6F and F4U to 30 and 31. The Spitfire should also be dropped to 24 and many of the late-war Japanese planes should be raised by 4-6 points depending on one's interpretations. AVAILABILITY - Test some what-if's about better planning by the Japanese. COST - Help make a shortage of Allied aircraft like there really was. It's hard to imagine General Kenney begging for planes based on this game. Doubling allied aircraft costs works about right, but does seem rather harsh. Compromise: Increase P-38's to 6, all other allied a/c by 1. These are just a few of the changes I feel make the game more realistic. And adding the F7F, F8F, AD-1, P-80, J7W, Kikka, and the Nakajima G10n1 Fugaku (6 engine heavy bomber designed to bomb the U.S. from Japan) is a lot of fun and more realistic in the 1945-1948 time frame. Let me know of any corrections or new information. I am assembling more information which allows editing ALL information in PACWAR - even the stuff PWREPORT doesn't allow one to edit. My goal is to produce a 1930's war scenario. If anyone is interested or has any suggestions, please let me know. If anyone would like me to edit a save file for them, I'm willing to help. (yeah, I'll make the Shinano and her sister Kii available in 1942 and put 100 points of oil resources in Kyushu so you don't have that nagging oil shortage problem, and CV-based Kikkas, but no I haven't got any Japanese A-bombs, <g>) Nicholas Bell 72162,1667