Jump to content
Jet Set Willy & Manic Miner Community

Spider

Moderator
  • Posts

    5,166
  • Joined

  • Last visited

Files posted by Spider

  1. Manic Miner - Highscore Challenge

    We are pleased to introduce a fun variant of Manic Miner, a 'High Score Challenge' The object is very simple, just obtain the maximum possible score for a cavern! The idea was inspired from a topic on the WOS forum a while ago.
     
    Upon loading, you will be presented with a menu list of the standard caverns, simply press A to T to select one. This will then become the starting (and only) cavern to play. The caverns are completely unaltered from the standard game, as are the scoring counts.
     
    Upon completion of a cavern once all the air has been removed, the game will purposely freeze. At this point you can make a note of your score. To restart the cavern at this point simply press BREAK (Caps+Shift)
     
    The game is provided as both a conventional .tap tape file as well as a .z80 snapshot image.
     
    Please feel free to tell us your best scores and we will update the rankings below!
     
    Please note the following very minor changes were necessary to the game engine itself to facilitate:
    There are infinite lives provided
    A loss of life will cause both the cavern to be reset as normal as well as the score
    The "Teleporter" (603179) function is disabled
    There is no demo mode as such, as there is nothing really to 'demo'
    As noted above, once a cavern is complete the game will freeze until BREAK is pressed
    If you wish to change the cavern it will be necessary to either reload the snapshot or do a POKE 34274 , x , with x being 0 to 19 for the cavern choice.
     
    Enjoy! 😄
     
    The order in which players who achieved the same score are mentioned shows who achieved this score first.
     
    Central Cavern
    :1st: - 1724 - Pgyuri, jetsetdanny & crem's algorithm
    :2nd: - 1722 - Woody
    :3rd: - 1721 - crunchy_frog & geoff
     
    The Cold Room
    :1st: - 1975 - Pgyuri, JianYang,  crem's algorithm & jetsetdanny
    :2nd: - 1965 - Woody
    :3rd: - 1953 - Spider
     
    The Menagerie
    :1st: - 1904 - crem's algorithm & jetsetdanny
    :2nd: - 1903 - Pgyuri
    :3rd: - 1900 - JianYang
     
    Abandoned Uranium Workings
    :1st: - 1854 - Pgyuri, jetsetdanny & crem's algorithm
    :2nd: - 1852 - crunchy_frog
    :3rd: - 1851 - JianYang
     
    Eugene's Lair
    :1st: - 1748 - Pgyuri, jetsetdanny, crem's algorithm & JianYang
    :2nd: - 1559 - Spider
    :3rd: - 1195 - crem
     
    Processing Plant
    :1st: - 1821 - jetsetdanny & crem's algorithm
    :2nd:  - 1820 - Pgyuri
    :3rd: - 1814 - JianYang
     
    The Vat
    :1st: - 1825 - jetsetdanny, mzx, JianYang & crem's algorithm
    :2nd: - 1824 - crunchy_frog
    :3rd: - 1684 - Spider
     
    Miner Willy meets the Kong Beast
    :1st: - 4047 - jetsetdanny, Pgyuri & crem's algorithm
    :2nd: - 4042 - JianYang
    :3rd: - 3927 - crunchy_frog
     
    Wacky Amoebatrons
    :1st: - 1376 - crem's algorithm & jetsetdanny
    :2nd: - 1345 - Pgyuri
    :3rd: - 1335 - JianYang
     
    The Endorian Forest
    :1st: - 1841 - DigitalDuck
    :2nd: - 1840 - crem's algorithm & jetsetdanny
    :3rd: - 1834 - Pgyuri
     
    Attack of the Mutant Telephones
    :1st: - 1749 - crem's algorithm & jetsetdanny
    :2nd: - 1720 - Pgyuri
    :3rd: - 1719 - mzx
     
    Return of the Alien Kong Beast
    :1st: - 4276 - jetsetdanny & crem's algorithm
    :2nd: - 4275 - Pgyuri
    :3rd: - 4244 - JianYang
     
    Ore Refinery
    :1st: - 1866 - jetsetdanny, JianYang & crem's algorithm
    :2nd: - 1722 - crunchy_frog
    :3rd: - 1650 - mzx
     
    Skylab Landing Bay
    :1st: - 1808 - jetsetdanny & crem's algorithm
    :2nd: - 1806 - JianYang
    :3rd: - 1790 - Pgyuri
     
    The Bank
    :1st: - 1709 - Pgyuri, JianYang, jetsetdanny & crem's algorithm
    :2nd: - 1679 - mzx
    :3rd: - 1668 - Spider
     
    The Sixteenth Cavern
    :1st: - 1830 - jetsetdanny, JianYang & crem's algorithm
    :2nd: - 1814 - Pgyuri
    :3rd: - 1510 - Spider
     
    The Warehouse
    :1st: - 1951 - crem's algorithm, IRF & jetsetdanny
    :2nd: - 1909 - JianYang
    :3rd: - 1907 - crunchy_frog 
     
    Amoebatron's Revenge
    :1st: - 1314 - Pgyuri, jetsetdanny & crem's algorithm
    :2nd: - 1228 - JianYang
    :3rd: - 1174 - Spider
     
    Solar Power Generator
    :1st: - 1137 - crem's algorithm & jetsetdanny
    :2nd: - 0862 - JianYang
    :3rd: - 0821 - crunchy_frog
     
    The Final Barrier
    :1st: - 1776 - Pgyuri, jetsetdanny & crem's algorithm
    :2nd: - 1774 - JianYang
    :3rd: - 1767 - Spider

    144 downloads

    Updated

  2. Manic Miner - Primo

    A port of Manic Miner for the Primo computer.
    The game very closely follows the original Spectrum version albeit in monochrome, all caverns are present and it looks and plays very closely to the original in general.
    The code appears to be based on the Bug-Byte version and the original authors attribution remains intact too.
    The two game files are inside a .zip for convenience. They are identical aside from their format, being a .ptp and a .pri file respectively.
     
    Thank you to @pgyuri for bringing this variant to our attention. 🙂
     

    22 downloads

    Submitted

  3. Manic Miner - The Big Bonus Edition

    Manic Miner - The Big Bonus Edition
     
    This is a very simple modification of Manic Miner to provide a higher score compared to a standard version. In addition to this, a few small minor (miner?) changes were also made to improve the game a fraction. Care was taken in what changes were made to avoid an insane score value being obtainable.
    The 'score changes' performed were as follows:
     
    1. Item Collection: Changed to 1,000 points per item from its default of 100.
    2. Air Bonus: Changed to 10 from its default of 1 per air unit remaining upon cavern completion.
    3. Kong Bonus: Changed to 1,000 from its default of 100 per block the Kong Beast falls.
    4. Extra life: Changed to award an extra life at 100,000 points instead of its default of 10,000 points. This was necessary to prevent an excess of extra lives being awarded!
     
    ***********************************************
    Update December 2019 by Ian Rushforth
     
    A Cheat Mode has been added, which is activated by the BASIC loader if the player presses '$' during loading. i.e. the 'SYMBOL SHIFT' and '4' keys simultaneously. The game then enters 'Mega Bonus' mode, allowing the player to accrue even higher scores than in the 'standard' Big Bonus Edition! (Each of the four 'score changes' listed in bullet points 1-4 above are scaled up by an extra factor of 10.)
     
    The 'High Score/Score' row, which is printed at the bottom of the screen during play, is rearranged for the Mega Bonus Edition to allow for higher scores to be accommodated - it is now quite possible to reach a score of a million points!
     
    A 'bug/flaw/imperfection' in the original 'Manic Miner' has been addressed - it used to be the case that if you exceeded the previous High Score during a game, then the High Score was updated 'behind the scenes' at the beginning of execution of the 'Game Over' routine, but the new High Score could not be viewed on the screen until the next game had begun. In this version, once you attain a new High Score during a game, then as soon as that game ends the new High Score is printed onto the 'Game Over' screen just as the 'Boot of Doom' begins to descend!
     
    Finally, a couple of visual glitches from the original game were fixed. More technical details can be found in the 'Readme' .txt file which accompanies the game.
     
    ***********************************************

    172 downloads

    Updated

  4. Manic Miner - Two Chance Challenge

    A small variation on the original.
    Two lives are provided per cavern.
    How far can you honestly get without rollbacks or any cheating ? 🙂
     
    Note 1 : Although there is a small piece of patch code in the loader to try to ensure the main loader works in later Spectrum models, it may be best to load in 48K mode on these machines.
    Note 2 : There is a very simple 'anti tamper' check present but rather than punish the player, it will simply remove the detected cheat.
     
    Otherwise, enjoy.

    63 downloads

    Submitted

  5. Manic Miner (Amstrad)

    Manic Miner for the Amstrad CPC range of machines.
     
    Both disk (.dsk) and tape (.cdt) versions are present as well as the original Software Projects release and the Amsoft Re-Release
     
    The scrolling message reads as follows:
     

    Note in particular the original Software Projects release only tends to function properly on the 464 machine! It is recommended to use the Amsoft branded Re-Release if playing on this machine. On an emulator simply switch to use a 6128 instead. Manual pokes are available to rectify this if its a concern on a real machine however but the game code is practically identical between the original and the Re-Release, the only 'real' change is the loading screen itself.
     
    The game plays just as well as the original Spectrum version and with the exception of the last cavern it is near identical to that version too. Why the last cavern is different remains a mystery as on the BBC Micro version as well the last cavern (and a few others) are different too.

    134 downloads

    Updated

  6. Manic Miner (Amstrad) Cheat versions

    Manic Miner for the Amstrad CPC range of machines, these versions offer built in cheats to make game play a little bit easier.
     
    If you are after for original unaltered files please look here instead.
     
    Two disk (.dsk) versions are provided, both are compatible with the 464,664 and 6128. One is the original Software Projects branded and the other is the re-released Amsoft branded. Apart from the loading screen and very small wording variations in the cheat options selection they are practically identical.
     
    The range of optional cheats is identical, selectable during loading:
     
    Infinite lives: Yes/No
    Infinite air: Yes/No
    Immunity to moving enemies: Yes/No
    Level skip: Yes/No
    Starting Level: 1-20
     
    It should be noted that the 'immunity' cheat does not provide any protection against fire cells! The level skip is activated during game play by pressing the ESC key and simply moves you forward one cavern.
     
    Enjoy!

    55 downloads

    Submitted

  7. Manic Miner (C64)

    Manic Miner for the Commodore64, written by Chris Lancaster & Kris Lancaster.
     
    This is an original release minus any copy protection. Both disk and tape (.D64 and .T64) images are provided.
     
    The game itself very closely mimics the Spectrum version, more so than the Amstrad version and plays very well and quite faithfully to the original.
     
    Joystick (in P2) or keyboard to control:
     
    Q,E,T,U,O = Left
    W,R,Y,I,P = Right
    Shift or Space = Jump

    103 downloads

    Submitted

  8. Manic Miner (C64) Cheat

    Manic Miner for the Commodore64, written by Chris Lancaster & Kris Lancaster.
     
    Note this version has in built cheats, which were applied to the file by "Jack Alien". If you are looking for an original, unaltered version please see here instead.
     
    The file contains both a standard CBM tape image and a pr file (.t64 and .prg)
     
    Upon loading the following options are offered:
     
    Infinite Lives: Y/N
    Unlimited Air: Y/N
    No Collision: Y/N
    Starting Level:
    Level Skip:
     
    It should be noted the no collision cheat does not offer any protection against fire cells.
     
    Control keys are:
     
    Joystick (in P2) or keyboard:
     
    Q,E,T,U,O = Left
    W,R,Y,I,P = Right
    Shift or Space = Jump
     
    A = Pause
    S = Resume
    L = Music on
    K = Music off
    R/S = Restart level
     
    Enjoy!

    25 downloads

    Updated

  9. Manic Miner (C64) Construction Set

    Manic Miner 'Construction Set' for the Commodore C64, by Tim of LCS.
     
    This provides a level editor, It does offer options to save or load sets of screens to disk as well as play the game upon finishing editing.
     
    If you were looking for Manic Miner in general for the C64, please see here for an original or here for a cheat version.
     
    The supplied disk image (.D64) appears to contain the standard level set and is playable as you would expect. There are no cheats built into the game core code.
     
    Unfortunately there are no instructions apart from what are provided 'in game' as such although it appears to be completely keyboard controlled for the editor part. The 'main' keys are:
     
    F1 Next screen
    F3 Previous screen
    F5 Return to menu
    F7 Edit mode

    11 downloads

    Updated

  10. Manic Miner (C64/C128)

    Disk image (.dsk) of Manic Miner for the C64/C128
     
    The .zip also includes a .prg (tape file?) image too.

    19 downloads

    Updated

  11. Manic Miner (Cheat Versions) BBC Micro

    Manic Miner for the BBC Micro. The conversion was written by D.J.Coathupe.
     
    Two completely distinct versions are provided as separate disc (.ssd) images. Both versions feature a bypass to the inbuilt keypad/keylock protection. Simply enter any code or just press Return a few times to have it accepted.
     
    1. Filename "Manic Miner Invulnerability" .
     
    As the name suggests this provides near immunity during play. This does not provide infinite air, merely immunity to moving and static enemies as well as long falls.
     
    Notes: Although the game will not immediately end when the air supply runs out, it will soon crash thereafter if MinerWilly does not complete the cavern within a timely fashion once the air is exhausted. It is also quite possible to stand on fire cells. Some small care must be taken to not jump out of the top of the cavern which again can result in a crash.
     
    Both of the above small compromises needed during gameplay are very acceptable within this scope.
     
    2. Filename "Manic Miner Level Skip" .
     
    Notes: This version does not offer any extra lives, air supply or immunity! It simply allows you to choose the starting level. This in itself is a great boon if you wish to practise a cavern as the BBC version does not contain the ZX equivalent of a '6031769' teleporter routine. The game itself must be reloaded from disc if it is wished to change the level as the patch is applied before the game code is executed.

    59 downloads

    Updated

  12. Manic Miner (Dragon)

    Manic Miner for the Dragon 32/64 range of machines.
     
    Two tape files (.cas format) are included, the one badged as a 'Re-Release' is more compatible with other variants such as the Cole-Co.
     
    The first release retains the keypad protection, the code card is included. The 'Re-Release' does not have this.
     
    Cursor Left / Right = Left / Right
    Shift or Space = Jump
     
    P = Pause. Any other key while paused to resume
     
    S = Sound On
    Q = Sound Off
     
    The Dragon version includes two extra screens not seen in other versions, these are "The Dragon Users Bonus" and "The End"
     
    Similar to the Dragon version of JSW, there is a built in cheat mode...
     
     
     

    56 downloads

    Updated

  13. Manic Miner (Sam Coupe)

    Manic Miner for the MGT Sam Coup

    233 downloads

    Updated

  14. Manic Miner (Spectrum)

    Manic Miner for the Sinclair Spectrum.
     
    The download includes the following 'officially released' versions:
    [*]Bug Byte Ltd - The original first release [*]Software Projects - The 'later' original release [*]Ventamatic - Spanish language re-release [*]M.A.D - Mastertronic Added Dimension (Mastertronic

    162 downloads

    Updated

  15. Manic Miner (Spectrum) Cheat Versions

    These are simply pre-built cheat versions of the Spectrum releases of Manic Miner. For original releases please see here
     
    The download offers not one but two choices of cheating and these are additionally available in both the more common Bug Byte version as well as the Software Projects version too. The game loading Basic has been preserved to as near original as possible but the code block itself is compressed to reduce loading time.
     
    In summary the cheat choices are:
     
    1. Infinite lives, fall any height and infinite air
    2. Infinite lives, fall any height, infinite air, harmless guardians and harmless fire cells (full immunity in effect)
     
    As indicated above both of these variants are available in BB and SP formats, making a total choice of four tape files which are clearly marked as to which is which.
     
    Regarding the loader and code compression:
     
    I purposely ensured that the decompresser code returns to Basic after running rather than executing the game code immediately. This makes it very easy to alter or save the game code if required for further editing or suchlike.
     
    To do this simply "STOP" the Basic at line 20 for the Software Projects version and line 40 for the Bug Byte version. At this stage you can then "SAVE" the game code as usual 32768,32768 for loading into an editor or whatever you wish.
     
    Note that the call to 33280 is calling the decompression code, so if you are adding any pokes to the loader itself, do not add them before this has ran, simply add your pokes in the usual place ie: just before the USR 33792 statement.
     
    Enjoy.

    458 downloads

    Submitted

  16. Manic Miner (Tatung Einstein Version)

    Disk image of Manic Miner for the Tatung Einstein
     
    This includes the 'keypad' similar to the Acorn/BBC version of Manic Miner.
     
    The scrolling message reads:

    18 downloads

    Updated

  17. Manic Miner / JSW 1 / JSW2 Combi (BBC Micro)

    A compilation disc for the BBC Micro combining:
     
    Manic Miner
    Jetset Willy
    Jetset Willy 2 (both the 'cut down' and the 'full disc' versions)
     
    Note that none of these have any cheats applied, I've merely combined four disc images from the stardot archive, renamed a couple of files (to avoid conflicts) and created a simple selection menu to build this compilation.
     
    I hope you will enjoy it. :)

    48 downloads

    Updated

  18. Manic Miner Amiga

    Manic Miner for the Commodore Amiga
     
    The submission contains two variants as they tend to work on different hardware configurations.
     
    They are both (unfortunately) not quite untouched original versions however the 'trainers' can be ignored if required. The 'Mayhem' variant seems slightly more compatible with differing hardware configurations.
     
    I recommend the following initial configuration on an emulator for best results: OCS or ECS (Full) chipset , 512KB Chip Ram , 512KB Slow Ram , 0 Z2 Fast Ram , Extra chipset either 'Generic' or 'A500'

    39 downloads

    Submitted

  19. Manic Miner BBC Micro

    Manic Miner for the BBC Micro. The conversion was written by D.J.Coathupe.

    The caverns mostly mirror other versions with a few exceptions:

    1. There is no 'Solar Power Generator' instead there is a 'Meteor Showers' cavern. This is just as difficult as Skylabs, if not more so.

    2. The Final Barrier is also completely different in its layout too.

    The download includes the disc version, a tape version and the keypad code sheet too. This is required for the tape version. The disc version also features instructions during load too, these are not present on the original tape version mainly I suspect for a reduction in loading time.

    45 downloads

    Updated

  20. Manic Miner C16

    Manic Miner for the Commodore C16, published by Software Projects in 1986.
     
    The game feels, looks and plays very well indeed. The game layout closely follows the Amstrad and Spectrum versions. Unfortunately I do not have any information on the author of this version.
     
    Both a tape and disk (.tap and .prg) are provided, although the 'game code' is the same with them, merely the media format is different.
     
    It is quite remarkable it fitted into the limited space available on this machine. There have been some compromises to do this however, the ones I have noted are:
     
    1. There is no title screen as such, the game immediately starts upon loading and restarts upon life loss
    2. There is very little sound. No in game tune and little effects
    3. No animated lives counter, it is a simple "Lives: x" line
    4. Some guardian shapes are recycled and used again and some types present in other versions are not used in this variant
    5. Guardians lack much colour they are typically white
    6. No extra lives are given upon reaching a certain score. Other versions this is typically one extra life per 10K points
    7. The air supply is quite slow to drain generally. I do not think there is any differential between rooms on the initial 'starting supply' of air
    8. In 'Solar Power Generator' the beam does not appear to decrease the air supply or if it does it happens very slowly
    9. In the 'Alien Toilet' caverns that were 'Kong Beast' caverns, the switches are present but have no effect and the 'wall' is always open
     
    Some rooms have been renamed too:
     
    "Miner Willy meets the Kong Beast" is now "Miner Willy and the Toilet"
    "Wacky Amoebatron's" is now "Wacky Triangles"
    "Attack of the Mutant Telephones" is now "Spinning Thingy's"
    "Return of the Alien Kong Beast" is now "Return of the Alien Toilet"
    "Skylab Landing Bay" is now "Penguin Sick Bay"
    "Amoebatron's Revenge" is now "Logo's Revenge"
     

    Controls are joystick in P2 or the following keys:
     
    Q,E,T,U = Left
    W,R,Y,I = Right
    Shift/Space = Jump
     
    K = Pause
    J = Resume
     
    Enjoy! :)

    56 downloads

    Submitted

  21. Manic Miner Electron 2021

    This is the Acorn Electron version of Manic Miner, written by "0xC0DE" and built from Toby Lobster's greatly updated Manic Miner for the BBC Micro ( you can find that here )
    To quote the coder of this version, " 0xC0DE "
     
    The files attached here are two .zips:
    One containing four game files and two readme files, the original GitHub readme.md and a shortened plain text .txt of the same. Inside this zip are also the game files themselves, consisting of two tape .uef and two disc .ssd images, one for emulators and one for real machines.
    The other .zip file contains the screenshots used here, for convenience.
    The game controls are:
    Z = Left
    X = Right
    RETURN = Jump
    DELETE/COPY = Pause / Un-pause
    Q/S = Music off / Music on
    ESCAPE = End game
     
    Attributions:
    Original (ZX) game by Matthew Smith
    Initial BBC Micro release by D.J.Coathupe
    Updated 2021 BBC Micro release by Tony Lobster
    This Electron version presented here by 0xC0DE

    51 downloads

    Updated

  22. Manic Miner Oric Atmos

    Manic Miner for the Oric Atmos. Possibly *might* be compatible with the Oric 1 (if it has a memory/rom addon)
     
    There are actually two versions of this present generally on the Internet. One is credited to Matt Smith (this is the one in French with the bugs) and the other also mentions his name (and mentions

    105 downloads

    Updated

  23. Manic Miner PC

    Manic Miner for the IBM PC range of machines by Andy Noble.
     
    The download contains three versions as follows plus a small bonus too. All versions are complete and unmodified in any way (hence a .zip for each inside the main .zip) , they also include their original unmodified readme file, a requirement for distribution.
     
    0.75 , This is one of the earliest ones available, it also includes some of the Blitz Basic source code too. Please note this version needs a 32bit operating system, it will not function on a 64bit machine.
     
    0.79 , This is a slightly later version with a few bug-fixed applied. The good news is this will run on a 32bit or 64bit machine without any real issue as such.
     
    1.51 , A later version, again this is like 0.75 and requires a 32bit Operating System to function.
     
    The screenshots were taken using a 64bit OS using version 0.79. To play the 32bit versions you will either need a 32bit Operating System or perhaps an alternative solution:
     
    1. DosBox would work quite well
    2. If you are using WIndows7 Pro or Ultimate you will be able to obtain XP-Mode as a download from Microsoft. This is more or less a complete VM using 32bit XP and would be ideal
    3. Another alternative would be to use something like VirtualBox or VirtualPC but with these you would have to supply your own OS such as XP / 2K / 98 / possibly MS-Dos
     
    The bonus is the source data as well as some of the graphics and sound effects. Although these are present in one of the versions above, it seemed prudent to also split them out into a separate file for convenience too.
     
    Given the speed of modern computers, running the game on "slow" or "boring" speed is ideal. On the main title page press F1 to get to the options page.



    281 downloads

    Submitted

  24. Manic Miner Updated

    We are pleased to release a mildly updated Spectrum version of Manic Miner.
     
    1. The new loading screen I put together here has been used.
     
    2. The code was again assembled using a 'real' speedlock loader for both its intended use (on a real machine) and for tape loading fanatics too. This is not intended as any form of 'protection' it is simply to cut down loading time from approx 3m15s to 2m30s. :) Only the game code is loaded rather than an emulator 'built' one as that would load all the memory which is not needed.
     
    3. The game code was based on the Software Projects release rather than the more common Bug-Byte one, the reason for this was simply as the Software Projects release was later so it made more sense to base it on the 'last' code as such.
     
    4. The 'typewriter' cheat was removed. The Software Projects version was "typewriter" instead of "6031769"
     
    5. To make the game a bit more initially friendly, Willy starts with seven lives instead of three however:
     
    6. There is no bonus life awarded every 10,000 points any more.
     
    7. Minor detail: The scrolling message was slowed down a fraction so its more readable.
     
    8. Minor detail: The scrolling message was altered very slightly to correct a few concerns:
     
     


     

    In essence the changes are to capitalisation, spacing and the 'forgotten' pause keys.
     
    Enjoy. :)
     
    Note: Load in 48K mode

    99 downloads

    Updated

  25. Manic Miner ZX81

    This is the third party ZX81 version of Manic Miner, written in 1984. It is a standard ".p" ZX81 tape file.
     
    It is not (given the limited memory available) identical to other platforms, however there are eleven of the familiar caverns present although its a fantastic achievement and credit to the author for being able to do this at all.
     
    You do start with five lives instead of three however but the game is quite difficult so that is a very sensible compromise.
     
    The game language is Czechoslovakian
     
    A third party review of it can be found here (external link)
     
    The scrolling message reads:

    366 downloads

    Submitted

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.