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1. world x y lt z gt First a must be a variable name not a constant expression b must be a constant expression and must be a comparison operator see table below If the comparison is true then the block at x y z in world will be set to a redstone block ID 152 Otherwise it will be set to air ID O This allows for conditional branching another feature essential to the Redsparc For example var if foo bar world 1 2 3 would set the block at 1 2 3 in world to a redstone block if and only if the value of foo equaled the value of bar Otherwise it sets it to air Comparison Operators Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 11 Operator Function Equal to I Not equal to gt Greater than gt Greater than or equal to lt Less than lt Less than or equal to Redsparc Variable Assignment The Redsparc uses three different arrays of variables The reg array used for storing the register values AX BX and so on The ram array used for storing you guessed it the RAM values The io array used for for storing the values of the serial io ports The Registers Array reg The reg array stores the values of all the registers used by the Redsparc All registers in the Redsparc are 32 bits in size Each index of this array corresponds to a different register For a complete list of which registers corresp2. This is the classic guess the number game To run it type 1oad gtn and then press the execute button The programs works as follows 1 The program will generate a random number between 1 and 25 inclusive 2 The symbol will turn on indicating that the computer s ready for you to guess 3 Enter a guess using the Numpad 4 Your guess will be displayed on the numeric display 5 The up arrow will turn on if you are too low the down arrow will turn on if you re too high and the symbol will turn on if you ve guessed the number 6 If you didn t get the number guess again 7 If you got the number how many guesses it took you will be displayed on the numeric display Calculator This is a four function calculator It does addition subtraction multiplication and division To run it type 1oad calculator and then press the execute button The programs works as follows 1 You enter the first number on the Numpad 2 You enter an operation on the Gamepad o Afor addition o Bfor subtraction o Xfor multiplication o Y for division 3 You enter the second number on the Numpad 4 The numeric display will display the result Installing Programs You can also install additional programs for the Redsparc To view a list of additional programs for the Redsparc head over to http z5t1 com redsparc programs Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 7 Once you ve found a pro
3. N A Available for User Developed Hardware 27 N A Reserved for Future Use 59 N A Available for User Developed Hardware 28 N A Reserved for Future Use 60 N A Available for User Developed Hardware 29 N A Reserved for Future Use 61 N A Available for User Developed Hardware 30 N A Reserved for Future Use 62 N A Available for User Developed Hardware 31 N A Reserved for Future Use 63 N A Available for User Developed Hardware Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 21 Character Map 0 NULL 19 38 57 Space 1 0 20 J 39 Y 58 Carriage Return 2 1 21 K 40 59 Tab 3 2 22 L 41 60 Backspace 4 3 23 M 42 61 Escape 5 4 24 N 43 62 Control 6 5 25 O 44 S 63 Alt 7 6 26 P 45 64 F1 8 7 27 Q 46 i 65 F2 9 8 28 R 47 S 66 F3 10 9 29 S 48 67 FA 11 A SC T 49 68 ES 12 B 31 U 50 lt 13 C 32 V 51 gt 14 D 33 W 52 15 E 34 X 53 16 F 35 Y 54 17 G 36 Z 55 18 H 37 56 Gamepad Key Values O NULL 1 Back 2 Start 3Ok 4 Stop 5Up 6 Down 7 Left 8 Right 9A 10B 11X 12Y Redsparc Minecraft Computer http www zbt1 com redsparc
4. run any program make sure to press the hardware reset button Then type the following command in game load filename Where filename is the File Name of the program you want to run Once you have loaded a program press the execute button and the Redsparc will begin executing the program Remember to be patient if the program doesn t appear to be working at some point Often you will have to wait a few seconds before getting a response from the computer Note Before you run any program you should always make sure you have reset the computer first To do this press power off and then press hardware reset Using the Preinstalled Programs The Redsparc comes with some programs already installed for you to use They are as follows Program File Name Exponents Displays the exponents of a number exponents Guess the Number A simple guess the number game gtn Calculator A four function calculator program calculator Exponents This is a very simple program To run it type load exponents and then press the execute button The programs works as follows 1 The symbol turns on indicating that the program is ready for you to enter input Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 2 Input the starting number using the Numpad 3 The numeric display will display nt then n and so on until you press the power off button Guess the Number
5. second of the input devices It is used not only in games but generally for getting any input that is not numeric or text It has 12 buttons back start ok stop up down left right A B X and Y All you have to do with this device is press a button Keyboard The last of the input devices is the keyboard It is usually used for getting text input but is also sometimes used for other purposes It has a layout very similar to the layout used on real keyboards Simply step on the pressure plates for the key you wish to press Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 8 Numeric Display The numeric display is capable of displaying numbers between O and 99 999 inclusive Not much else to say here Symbol Display The symbol display consists of 6 different symbols v lt gt 2 and These symbols are used by programs to indicate their status or tell you some information other than a number GPU Screen The GPU or display screen is capable of displaying images text and just about anything else Variablez A Note for the not so Tech Savvy This section contains information for people that want to know all the nitty gritty details of how the Redsparc works If you are not one of those people you need not and probably should not read this section An Introduction to Variablez As mentioned earlier the Redsparc is by design heavily dependent on a custom Bukkit p
6. the value from serial port y into register x push ax Pushes register x onto the stack pop ax Pops register x from the stack call label Calls x saving the current instruction to the stack ret Returns from a call restoring the original instruction pointer jmp label Jumps to location x mov ax 4 copies a constant into register x mov ax bx copies the contents of register y into register x mov ax 32 copies the contents of RAM location y into register x mov ax bx copies the contents of the RAM location pointed to by register y to register x mov 32 4 copies a constant into RAM location x mov 32 ax copies the contents of register y into RAM location x mov 32 33 copies the contents of RAM location y into RAM location x mov ax bx copies the contents of register y to the RAM location pointed to by register x add ax bx adds the contents of registers x and y saving the result to register x Sub ax bx subtracts the contents of registers x and y saving the result to register x mul ax bx multiplies the contents of registers x and y saving the result to register x div ax bx divides the contents of registers x and y saving the result to register x mod ax bx modulus divides the contents of registers x and y saving the result to register x and ax bx ands the contents of registers x and y saving the result to register x or ax bx ors the contents of registers x and y saving the result to register x xor ax bx xors the cont
7. Available for User Developed Hardware 5 Out Symbol Display Right 37 N A Available for User Developed Hardware 6 Out Symbol Display 38 N A Available for User Developed Hardware 7 Out Symbol Display 39 N A Available for User Developed Hardware 8 In Random Number Generator 40 N A Available for User Developed Hardware 9 In Gamepad 41 N A Available for User Developed Hardware 10 In Keyboard 42 N A Available for User Developed Hardware 11 N A Reserved for Future Use 43 N A Available for User Developed Hardware 12 N A Reserved for Future Use 44 N A Awailable for User Developed Hardware 13 N A Reserved for Future Use 45 N A Available for User Developed Hardware 14 N A Reserved for Future Use 46 N A Available for User Developed Hardware 15 N A Reserved for Future Use 47 N A Available for User Developed Hardware 16 Out GPU Execute 48 N A Available for User Developed Hardware 17 Out GPU Command 49 N A Available for User Developed Hardware 18 Out GPU X1 50 N A Available for User Developed Hardware 19 Out GPU Y1 51 N A Available for User Developed Hardware 20 Out GPU X2 52 N A Available for User Developed Hardware 21 Out GPU Y2 53 N A Available for User Developed Hardware 22 Out GPU Color 54 N A Available for User Developed Hardware 239 Out GPU Working Buffer 55 N A Available for User Developed Hardware 24 Both GPU Register 56 N A Available for User Developed Hardware 25 In GPU Status 57 N A Available for User Developed Hardware 26 N A Reserved for Future Use 58
8. Color Code Color Color Code Color 0 White Light Gray 1 Orange Cyan 2 Magenta 10 3 Light Blue H 4 Yellow 12 5 Lime 13 6 Pink 14 Red 7 Gray 15 Black Buffers The Redsparc GPU also has multiple buffers Traditionally games use doubled buffer mode Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 15 when rendering images The Redsparc takes that a step further having 17 buffers numbered 0 16 The reason it has so many buffers is to allow software to create all the screens it needs at startup and then just swap them during execution since drawing can be a bit slow making the application seemingly run faster You are free to use buffers O 15 for whatever your heart desires however it is imperative that you do not modify buffer 16 Buffer 16 is used as the blank buffer and the GPU relies on it containing nothing other than black wool as it is used as part of the reset process However since buffer 16 is guaranteed to be blank you can use buffer 16 as the source buffer in the copy buffer command if you wish to clear another buffer Buffer O is the display buffer that the end user sees Use the copy command op code 1 to copy one buffer to another The equivalent of doubled buffer mode would be using buffer 1 as your working buffer and then copying buffer 1 to buffer O to push the image to the user Executing Commands GPU command execution works as follows the op code is written
9. PU The GPU uses the following serial ports 16 17 18 19 20 21 22 23 24 25 The GPU is by far the most complex of all the input output devices and probably deserves a manual of its own which clearly isn t happening The GPU also uses 10 serial ports which is more than every other output device combined Each of these ports serves a special purpose which is explained quite nicely by the following table Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual Serial Port Name Description 16 Execute You set this to 1 when the GPU should execute a command 17 Command The op code for the command the GPU should execute see GPU Op Codes under Reference Tables for a complete list of commands 18 X1 Stores the X1 coordinate 19 Y1 Stores the Y1 coordinate 20 X2 Stores the X2 coordinate 21 Y2 Stores the Y2 coordinate 22 Color Stores the current working color 23 Buffer Stores the current working buffer 24 Register Used as an extra argument for certain operations 25 Status Set to 1 if the GPU is busy otherwise set to O Colors The Redsparc GPU supports all 16 Minecraft wool colors For all operations where the GPU is drawing something it uses the color specified by serial port 22 To change the color simply write the appropriate color code to serial port 22 Wool Colors
10. REOSPAR Z User Manual Version 1 0 Alpha 2 zbt1 com redsparc Redsparc User Manual 2 Contents Setting NERA a cscs sie a Dans DD Cas Da ed 4 Download Ev 4 SE the SEAS 4 VV MALO CN C E E E E EE P 4 NES p qu 4 In etm ET 4 Connecting sta at 9 me Programs US St 9 R nning Pr ve 5 Using the Premstalled Prog rains emesa mem mt EGO 5 PYTTEN 5 Guess the NAS 6 GE FEL ASR CR RR RR RR RR RR RS RR RR RN RS 6 Installing Programs citem ae aaa ade aaja usado PES 6 Input amp cO tp t Ke 7 N mpad e 7 EG 7 LEE 7 lte ER 8 Symbol WTSI mr dues 8 GPS s H 8 Vrllsssarj 8 A Note for the not so Tech E 8 An Introduction to MEA 8 VE 8 og ut 9 Constant EP E 9 Incrementing and ee 9 Mathematical and Bitwise Operations s esreesnvrennvrsnvrennersnnsennrssnnrennsesnnsennessnnssnnsssnnsennsssnnsennessennne 10 ee E 10 Redsparc Variable S N EE 11 The Registers Array Ep m 11 The RAM Eeer 11 Th Top OP array EE 12 Interfacing with the Built in Hardware eva cecessiesesevevccrodecssseseneeasessnnns eta essammsn onmmsimmantmes 12 A N te for the not
11. c Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 18 GPU Op Codes Op Code Command Description 0 reset Resets the GPU 1 copy buffer Copies the working buffer to the buffer specified by GPU register IO port 24 2 set pixel Sets the pixel at X1 Y1 to the working color 3 fill Fills the area from X1 Y1 to X2 Y2 with the working color 4 border Sets the border for the area from X1 Y1 to X2 Y2 to the working color Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 19 Register Addresses Register Value Description AX 0x00 General Purpose BX 0x01 General Purpose CX 0x02 General Purpose DX 0x03 General Purpose SI 0x04 General Purpose DI 0x05 General Purpose SP 0x06 Stack Pointer BP 0x07 Base Pointer IP 0x10 Instruction Pointer I1 Ox11 Instruction Word 1 2 0x12 Instruction Word 2 I3 0x13 Instruction Word 3 MA 0x14 Memory Address FEQ 0x15 Equal Flag FNEQ 0x16 Not Equal Flag FG 0x17 Greater Than Flag FGE 0x18 Greater Than or Equal Flag FL 0x19 Less Than Flag FLE Ox1A Less Than
12. download to download the Redsparc Once you ve downloaded the zip file extract it The next step varies depending on what operating system you re using so follow the directions in the appropriate section for your system Starting the Server Windows You ve got it pretty easy 1 Double click start bat 2 When prompted click run promise this is not a virus but if you don t trust me you can look at it for yourself Right click on start bat and click edit Mac OS X 1 Open up a terminal 2 Navigate to the directory you unzipped the Redsparc files to using the cd command 3 Type start sh Note If typing start sh doesn t work you may first need to type chmod 775 start sh Linux If you use Ubuntu or any other distribution that uses Gnome then you can do the following 1 Double click start sh 2 When prompted click run in terminal If the above doesn t work or your distribution doesn t use Gnome do the following 1 Open up a terminal Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 5 2 Navigate to the directory you unzipped the Redsparc files to using the cd command 3 Type start sh Note If typing start sh doesn t work you may first need to type chmod 775 start sh Connecting Now your server is up running and waiting for you to connect Launch Minecraft and connect to server 127 0 0 1 to start using the Redsparc Running Programs Running a Program Before you
13. ents of registers x and y saving the result to register x inc ax increments register x dec ax decrements register x cmp ax bx Compares the contents or registers x and y setting all comparison flags je label Jumps to location x if the equal flag is set jne label Jumps to location x if the not equal flag is set jg label Jumps to location x if the greater than flag is set jge label Jumps to location x if the greater than or equal flag is set jl label Jumps to location x if the less than flag is set jle label Jumps to location x if the less than or equal flag is set cmp ax 4 Compares the contents or register x and constant y setting all comparison flags add ax 4 adds the contents of register x and constant y saving the result to register x sub ax 4 subtracts the contents of register x and constant y saving the result to register x mul ax 4 multiplies the contents of register x and constant y saving the result to register x divax 4 divides the contents of register x and constant y saving the result to register x mod ax 4 modulos the contents of register x and constant y saving the result to register x and ax 4 ands the contents of register x and constant y saving the result to register x orax 4 ors the contents of register x and constant y saving the result to register x xor ax 4 xors the contents of register x and constant y saving the result to register x Implemented Redsparc Redsparc Redsparc Redsparc Redsparc Redspar
14. gram you want to install download the binary version of it You have to copy the file you downloaded to the proper location Go to wherever you extracted the files for the Redsparc click on plugins and then click on Load You must copy the file you downloaded into this directory You can then run it in game by pressing the hardware reset button typing load filename and pressing the execute button Input amp Output Devices The Redsparc has three input devices the Numpad Gamepad and keyboard as well as three output devices the numeric display symbol display and GPU or screen This section documents how these devices work in general For documentation on their use for a specific program please see the documentation for that program Numpad The Numpad is used for inputting numeric values It may look complicated but it really isn t There are ten columns and five rows Each row represents a different digit of the number The top row is the 10 000s place row two is the 1 000s place and so on Each column is a different value for that digit Simply press the buttons as desired and then press the enter button For example to enter the number 62 574 do the following Press the 6 button on the top row Press the 2 button on the second row Press the 5 button on the third row Press the 7 button on the fourth row Press the 4 button on the bottom row p Hr uec uec Deo d Press the enter button Gamepad The Gamepad is the
15. lugin Variablez This plugin does what its name implies it allows you to store values in variables It functions very similarly to how scoreboards do but adds a couple of essential features While some may not appreciate this and some may even consider it cheating there is a very valid reason for this Making a computer in Minecraft using just vanilla content and no custom commands hasn t ever worked out too well There have been computers made this way but they are all extremely slow not one of them has a clock speed faster than 0 5 Hz and extremely limited with memory not to mention that it isn t feasible to make a Von Neumann computer this way So if you can just put any predrawn conclusions aside you may actually come to appreciate how much more powerful the Redsparc is because of this decision Setting Values All Variablez commands start with var followed by a subcommand In its most basic form it Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 9 works as follows var set variable value Sets a variable equal to a value where variable is the name of the variable and value is the value you want to set it to The variable name may consist of uppercase and lowercase letters numbers and underscores The value must be an integer between 2147483648 and 2147483647 or if you prefer any signed 32 bit integer So typing var set foo 42 would set variable foo equal to 42 Printi
16. n argument just takes a plain variable name you do not surround the variable name in braces You can however use braces for retrieving an index from an array So var set ram foo 66 would be perfectly valid Incrementing and Decrementing Variablez allows for simple incrementing and decrementing of variables Simply use var inc variable and var dec variable respectively Variable should not be a Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 10 constant expression i Mathematical and Bitwise Operations Variablez also lets you perform mathematical and bitwise operations The syntax is as follows var lt operation gt lt a gt lt b gt Where operation is a valid operation see table below a is a variable name not a constant expression and b is a constant expression This performs the operation on a and b storing the result in variable a Note For operations where the order of operands matters subtraction division and modulus a should be the first operand and b should be the second Valid Operations Operation Subcommand Addition var add Subtraction var sub Multiplication var mul Division var div Modulus var mod Bitwise AND var and Bitwise OR var or Bitwise XOR var xor If Statements Finally Variablez allows for comparison via the if subcommand It s a bit complicated and works as follows var if a lt gt b
17. nds Often programs take a few seconds to start Make sure you ve pressed the execute button Check the clock status lights Ensure that they are blinking If any one is not press the clock reset button 4 Press the hardware reset button load the program again and press execute If all else fails there could be a bug in the program you re trying to run Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 17 Op Codes All op codes for the Redsparc have two arguments x and y For commands that don t use x and or y they should be set to 0 Op Code Hex Syntax WNrRO WNrRO hit out x y out reg x y in reg x y push reg x pop reg x call x ret jmp x mov reg x y mov reg x reg y mov reg x ram y mov reg x ram reg y mov ram x y mov ram x reg y mov ram x ram y mov ram reg x reg y add reg x reg y sub reg x reg y mul reg x reg y div reg x reg y mod reg x reg y and reg x reg y or reg x regly xor reg x reg y inc reg x dec reg x cmp reg x reg y jex jnex jgx jgex jx jlex cmp reg x y add reg x y sub reg x y mul reg x y div reg x y mod reg x y and reg x y or reg x y xor reg x y Reference Tables Assembly Explanation hit Halts computer operation out 4 1 uses port 1 Writes x to serial port y out ax 1 Writes the value at register x to serial port y in ax 1 Reads
18. ng Values Printing a value isn t that different from setting it Simply type var print constant This prints the value specified as constant So typing var print 42 would in turn print 42 To print a variable we must use a constant expression Constant Expressions Many Variablez commands take a constant expression as one or more of the arguments These are not as complicated as they may seem A constant expression consists of a constant value So you could use 42 as the constant or any other value It is also possible however to use variables in constant expressions We simply put the variable name inside of This tells Variablez that we want to use the value of that variable not just the name So for example to print the value of the foo variable we would type var print foo This would cause 42 to be printed You can also prepend a constant to a variable as follows var print foo foo This would cause foo 42 to be printed instead of just 42 as in the previous example Finally you can nest braces This allows you in a sense to create arrays of values Say that we wanted to get the RAM value at index foo We would just simply type var print ram foo This would print RAM address 42 This is essential to the Redsparc as without this feature you would not be able to use registers as RAM indices Note You should only use a constant expression when an argument specifically says it takes a constant expression If a
19. ollowing serial port 9 When the user presses a button on the gamepad serial port 9 is set to the corresponding value When no button has been pressed serial port 9 is set to O For a list of which values correspond to which button see the Gamepad Key Values table under the Reference Tables Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 13 section Keyboard The keyboard uses the following serial port 10 When the user presses a key on the keyboard serial port 10 is set to the corresponding character value When no key has been pressed serial port 10 is set to O For a list of which values correspond to which characters see the Character Map table under the Reference Tables section Output Devices Numeric Display The numeric display uses the following serial port 1 The numeric display simply displays whatever value is in serial port 1 you need only change the value to change the display Note however that if the number is greater than 99 999 only the last 5 digits will be displayed Symbol Display The symbol display uses the following serial ports 2 3 4 5 6 7 Each of the symbol display serial ports controls a different symbol To turn a symbol on set the port to 1 To turn a symbol off set the port to O Port Name Symbol Up Arrow A Down Arrow Left Arrow Right Arrow Question Mark DIV IA lt NN OO BCIN Exclamation Point G
20. ond to which indices see the Register Address table under Reference Tables section Some of these registers are accessed directly when programming These registers are all the general purpose registers plus the SP and BP registers The general purpose registers serve no special purpose and can be used for anything The stack pointer SP register points to the bottom of the stack and is used during all stack related operations push pop call ret The base pointer BP register currently serves no special purpose but this behavior should not be relied upon when writing code as it is likely to change in future versions of the Redsparc The other registers should not ever be accessed directly when programming These registers are by the processor to store internal variables such as the address of the next operation and the comparison flags Accessing these registers directly will cause unexpected behavior and system instability The RAM Array ram The ram array stores the the RAM values This one is pretty simple It uses linear addressing with the first RAM value being ram 0 the second one being ram 1 and so on Each RAM value is 32 bits in size to correspond with the register size When the execute button is pressed the processor will start executing the instruction at ram 0 using ram 1 as x and ram 2 as y For details on how x and y are used see the Op Codes table under the Redsparc Minecraft Computer http www zbt1 com
21. or Equal Flag 1P 0x20 Instruction 1 Pointer DP 0x21 Instruction 2 Pointer I3P 0x22 Instruction 3 Pointer GPU Register Addresses Register Serial Port Purpose 16 Set to 1 when the GPU should execute a command GPU CMD 17 Stores the current command GPU X1 18 X1 coordinate GPU Y1 19 Y1 coordinate GPU X2 20 X2 coordinate GPU Y2 21 Y2 coordinate GPU CLR 22 Current working color GPU BUF 23 Current working buffer GPU REG 24 Extra register for user interface 25 Stores the GPU status 0 free 1 busy GPU 1 GPU Internal Register 1 Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 20 Serial Port Assignment Key e Blue ports already in use for built in hardware Yellow ports already in use for the GPU Green ports designated for use when developing your own hardware Grey ports reserved for future hardware Ports greater than 63 should not be used They have not been allocated yet and may be used for built in hardware in future versions Port Direction Use Port Direction Use 0 In Numpad Input 32 N A Available for User Developed Hardware 1 Out Numeric Display Output 33 N A Available for User Developed Hardware 2 Out Symbol Display Up 34 N A Available for User Developed Hardware 3 Out Symbol Display Down 35 N A Available for User Developed Hardware 4 Out Symbol Display Left 36 N A
22. redsparc Redsparc User Manual 12 Reference Tables section The Input Output array io The io array is used for storing serial port values It is this array that is used to interface with the hardware The first serial port is io 0 the second io 1 and so on Each port controls a different piece of hardware For information on which ports control what see the Serial Port Assignment table under the Reference Tables section Interfacing with the Built in Hardware A Note for the not so Tech Savvy This section contains information for people that want to know all the nitty gritty details of how the Redsparc works If you are not one of those people you need not and probably should not read this section Basic Hardware Input Output All hardware on the Redsparc is controlled by serial ports in the io array Interfacing with most hardware is as simple writing or reading values to or from serial ports This section will cover in detail how each IO device works To read values from a serial port use the in instruction Op code 3 To write values to a serial port use one of the out instructions Op codes 1 amp 2 Input Devices Numpad The numpad uses the following serial port 0 When the user presses enter on the numpad serial port O is set to the value the user entered which will be between O and 99 999 inclusive If there is no input serial port O will be set to 100 000 Gamepad The gamepad uses the f
23. so Tech SAVVY EE 12 Basic Hardware Input ERNEST OPE DER DES 12 Input DELS Jes eee 12 Eege 12 EE 12 f DO AE ini Ec RR 13 Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 3 EG IE I Pr TIN 13 N merne DISpIay or ie 13 Sb DP 13 REG 13 REC e 14 ln T coea 14 Fed mb Rec PT tl EES 15 Troubleshooting iecerei iiien RE EA EEE m mm 16 The GPU screen numeric display symbol display isn t working eese 16 I pressed execute but nothing s happening eere scene eene en enne tnnt nnns tnns eet tan sese eaae 16 Reference Le RET aa ad Lad C cens 17 CCS ea lcs 17 GPU OP TE 18 PEER EE 19 GPU Register SAGAN 19 Serial Port ASSIS INCI 225 E 20 CA CIE E EE 21 Gamepad ATI n 21 Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 4 Setting up the Redsparc Downloading the Files Before we can use the Redsparc we must set it up This is not done the same way you set up other custom maps The Redsparc actually runs on a Bukkit server It is by design dependent on custom Bukkit plugins to function So to use the Redsparc you must first setup a Bukkit server Don t worry this isn t as difficult as it sounds Head over to http z5t1 com redsparc
24. to serial port 17 and the rest of the arguments are written to their corresponding serial ports Once all of the arguments have been written set serial port 16 to 1 This will make the GPU actually execute the command It s also worth mentioning that all serial ports aside from port 25 retain their values across multiple operations This means that if the color is the same across 2 or more operations you need to write it to port 22 only once GPU Error amp Range Checking It is important to take note of the fact that the GPU has no error checking or range checking on the values passed to it This means that if you pass the GPU an X coordinate or a buffer that is outside of its bounds the GPU will actually proceed to modify blocks in other parts of the map This could potentially destroy the CPU or some other vital component of the computer so don t do that Redsparc Minecraft Computer http www zbt1 com redsparc Redsparc User Manual 16 Troubleshooting The GPU screen numeric display symbol display isn t working This can sometimes happen when you join the game or perform a hardware reset Check the clock status lights at the far left If either of them are not blinking press the clock reset button If this is not the problem try flying closer to the display I pressed execute but nothing s happening This can be caused by a wide variety of issues Do the following steps in order 1 2 3 Wait a few seco
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