Uploaded July 2026 | Updated September 2026, 3 weeks ago
A compilation of all programs that MPU7 ran - but sped up to be palatable.
MPU7 was completed in January 2022 and it is the 11th redstone computer I have built in Minecraft.
Programs shown:
- 8 bit Fibonacci
- Hello World!
- Base 10 Fibonacci
- Fizzbuzz
- 16 bit fibonacci
- Insertion sort
- Rickroll
- Bad Apple
- Bubble Sort
- Line drawing with Bresenhams algorithm
- Collatz
- 8 bit calculating pi using BBP algorithm
- Pong
- Typing with keyboard
- Controllable Pixel
- 4 function calculator
- Line drawing using DDA algorithm
- 16 bit calculating pi using BBP algorithm
- 32 bit fibonacci
- 32 bit calculating pi using BBP algorithm
- Mandelbrot
- Fibonacci written in URCL
- URCL logo written in URCL
- Fizzbuzz written in URCL
- Collatz written in URCL by emm
- Recursive Fibonacci compiled from B code
- Ackermann compiled from B code
MPU7 is the first computer I built with:
- a full keyboard
- single display used for both text and pixel graphics
- no pistons
- 8 kB of extra ROM glued on
- letters and numbers displayed using pixels instead of segments
MPU7 Trivia:
- the pixels on MPU7s display are 1x1 blocks - this was an extremely expensive trick to do because it added an extra 100 ticks to the display
- the keyboard uses the new (at the time) target blocks and you throw snowballs at it to press the buttons
- MPU7 is faster at running Fibonacci than MPU8 due to having fewer hazards
- MPU7 is the first computer I built that doesn't have ".0" in its name
MPU7 Specs:
- No command blocks or pistons
- 2 Hz clock speed (5 ticks or 0.5 seconds per clock pulse)
- 5 stage waterfall pipeline (Fetch1 - Fetch2 - Decode - Execute - Writeback)
- 10 general purpose simulated dual read registers (with no read before write hazards because of the automatic forwarding)
- 8 bit word length
- 256 word instruction ROM x2
- 32 bit instruction length (that includes an 8 bit immediate value)
- VLIW architecture
- 32 bit hardware BCD converter
- 8 bit hardware multiplier
- 8 bit hardware divider
- 8 bit RNG
- 64x32 pixel display (1x1 pixels) which can be shifted upwards 8 pixels whenever needed
- 1 frame buffer
- Full qwerty keyboard with arrow keys and function keys for user input
- 128 bytes of main RAM
- 256 bytes of screen RAM
- Up to 128 I/O ports
- External 8 kiB paging ROM for storing large amounts of data
- 7 testable flags
- Full 7 bit character set (a custom one, so not ASCII) which uses 4x8 characters
- Can be started, stopped and reset from the UI
- Almost fully compatible with URCL
If you enjoyed this video, consider subscribing to ModPunchtree to see me push the limits of Redstone engineering!
------------------------------------------------------
Join my Patreon to get:
- Working version of IRIS
- All IRIS tools
- Code for all programs IRIS has ran
- Access to Discord channels where I discuss IRIS
- Support me pushing the limits of redstone!
patreon.com/modpunchtree
Alternatively become a channel member to get the same perks:
youtube.com/channel/UCEgmpeSCRvIhS4FX8C_Fgyg/join
Join my Discord:
discord.gg/GRdTe4myPZ
URCL Discord: (URCL is the programming language all IRIS programs were written in)
discord.gg/Nv8jzWg5j8
------------------------------------------------------
Music:
Mario Kart Super Circuit - Sky Garden
Mario Kart Super Circuit - Circuit Course
Mario Kart Super Circuit - Battle Course
#minecraft #redstone #computerscience #engineering #iris #mpu7 #mpu
A compilation of all programs that MPU7 ran - but sped up to be palatable.
MPU7 was completed in January 2022 and it is the 11th redstone computer I have built in Minecraft.
Programs shown:
- 8 bit Fibonacci
- Hello World!
- Base 10 Fibonacci
- Fizzbuzz
- 16 bit fibonacci
- Insertion sort
- Rickroll
- Bad Apple
- Bubble Sort
- Line drawing with Bresenhams algorithm
- Collatz
- 8 bit calculating pi using BBP algorithm
- Pong
- Typing with keyboard
- Controllable Pixel
- 4 function calculator
- Line drawing using DDA algorithm
- 16 bit calculating pi using BBP algorithm
- 32 bit fibonacci
- 32 bit calculating pi using BBP algorithm
- Mandelbrot
- Fibonacci written in URCL
- URCL logo written in URCL
- Fizzbuzz written in URCL
- Collatz written in URCL by emm
- Recursive Fibonacci compiled from B code
- Ackermann compiled from B code
MPU7 is the first computer I built with:
- a full keyboard
- single display used for both text and pixel graphics
- no pistons
- 8 kB of extra ROM glued on
- letters and numbers displayed using pixels instead of segments
MPU7 Trivia:
- the pixels on MPU7s display are 1x1 blocks - this was an extremely expensive trick to do because it added an extra 100 ticks to the display
- the keyboard uses the new (at the time) target blocks and you throw snowballs at it to press the buttons
- MPU7 is faster at running Fibonacci than MPU8 due to having fewer hazards
- MPU7 is the first computer I built that doesn't have ".0" in its name
MPU7 Specs:
- No command blocks or pistons
- 2 Hz clock speed (5 ticks or 0.5 seconds per clock pulse)
- 5 stage waterfall pipeline (Fetch1 - Fetch2 - Decode - Execute - Writeback)
- 10 general purpose simulated dual read registers (with no read before write hazards because of the automatic forwarding)
- 8 bit word length
- 256 word instruction ROM x2
- 32 bit instruction length (that includes an 8 bit immediate value)
- VLIW architecture
- 32 bit hardware BCD converter
- 8 bit hardware multiplier
- 8 bit hardware divider
- 8 bit RNG
- 64x32 pixel display (1x1 pixels) which can be shifted upwards 8 pixels whenever needed
- 1 frame buffer
- Full qwerty keyboard with arrow keys and function keys for user input
- 128 bytes of main RAM
- 256 bytes of screen RAM
- Up to 128 I/O ports
- External 8 kiB paging ROM for storing large amounts of data
- 7 testable flags
- Full 7 bit character set (a custom one, so not ASCII) which uses 4x8 characters
- Can be started, stopped and reset from the UI
- Almost fully compatible with URCL
If you enjoyed this video, consider subscribing to ModPunchtree to see me push the limits of Redstone engineering!
------------------------------------------------------
Join my Patreon to get:
- Working version of IRIS
- All IRIS tools
- Code for all programs IRIS has ran
- Access to Discord channels where I discuss IRIS
- Support me pushing the limits of redstone!
patreon.com/modpunchtree
Alternatively become a channel member to get the same perks:
youtube.com/channel/UCEgmpeSCRvIhS4FX8C_Fgyg/join
Join my Discord:
discord.gg/GRdTe4myPZ
URCL Discord: (URCL is the programming language all IRIS programs were written in)
discord.gg/Nv8jzWg5j8
------------------------------------------------------
Music:
Mario Kart Super Circuit - Sky Garden
Mario Kart Super Circuit - Circuit Course
Mario Kart Super Circuit - Battle Course
#minecraft #redstone #computerscience #engineering #iris #mpu7 #mpu
![MPU 7 - 32 bit BBP Pi [ 2 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/a0hSzy4FCJc/mqdefault.jpg "MPU 7 - 32 bit BBP Pi [ 2 Hz Minecraft Redstone CPU ]
The MPU 7 is my latest and fastest Minecraft Redstone CPU.
This video is at 64x speed and the carpet mod tick speed is set to 2 times speed.
Here the MPU 7 is calculating Pi using the BBP formula with 32 bit fixed point values. Then it converts this result into base 10 and prints it to the display.
The flashing horizontal line is the cursor. This just shows what area of the screen the MPU 7 is currently writing to.
This program took a total of 3755 cycles (31 minutes and 17.5 seconds) to run. This includes the time spend initialising the registers/ram and the time draw to the display.
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 7 Specs:
• No command blocks or pistons
• 2 Hz clock speed (5 ticks or 0.5 seconds per clock pulse)
• 5 stage waterfall pipeline (Fetch1 - Fetch2 - Decode - Execute - Writeback)
• 10 general purpose simulated dual read registers (with no read before write hazards because of the automatic forwarding)
• 8 bit word length
• 256 word instruction ROM x2
• 32 bit instruction length (that includes an 8 bit immediate value)
• VLIW architecture
• 32 bit hardware BCD converter
• 8 bit hardware multiplier
• 8 bit hardware divider
• 8 bit RNG
• 64x32 pixel display (1x1 pixels) which can be shifted upwards 8 pixels whenever needed
• 1 frame buffer
• Full qwerty keyboard with arrow keys and function keys for user input
• 128 bytes of main RAM
• 256 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data (Like Bad Apple!!)
• 7 testable flags
• Full 7 bit character set (a custom one, so not ASCII) which uses 4x8 characters
• Can be started, stopped and reset from the UI
• Almost fully compatible with URCL
MPU 7 ISA:
https://docs.google.com/spreadsheets/d/1fgXPalCBTGg-X3QGXmNagxAMHoiOW_9nbOgaJl7fFoY/edit?usp=sharing
MPU 7 World download is available in the URCL discord:
https://discord.gg/Nv8jzWg5j8
If you want to support me creating these videos, Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
![MPU 7 - 16 bit BBP Pi [ 2 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/ah7RDhjjFus/mqdefault.jpg "MPU 7 - 16 bit BBP Pi [ 2 Hz Minecraft Redstone CPU ]
The MPU 7 is my latest and fastest Minecraft Redstone CPU.
This video is at 16x speed and the carpet mod tick speed is set to 2 times speed.
Here the MPU 7 is calculating Pi using the BBP formula with 16 bit fixed point values. Then it converts this result into base 10 and prints it to the display.
The flashing horizontal line is the cursor. This just shows what area of the screen the MPU 7 is currently writing to.
This program took a total of 964 cycles (8 minutes and 2 seconds) to run. This includes the time spend initialising the registers/ram and the time draw to the display.
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 7 Specs:
• No command blocks or pistons
• 2 Hz clock speed (5 ticks or 0.5 seconds per clock pulse)
• 5 stage waterfall pipeline (Fetch1 - Fetch2 - Decode - Execute - Writeback)
• 10 general purpose simulated dual read registers (with no read before write hazards because of the automatic forwarding)
• 8 bit word length
• 256 word instruction ROM x2
• 32 bit instruction length (that includes an 8 bit immediate value)
• VLIW architecture
• 32 bit hardware BCD converter
• 8 bit hardware multiplier
• 8 bit hardware divider
• 8 bit RNG
• 64x32 pixel display (1x1 pixels) which can be shifted upwards 8 pixels whenever needed
• 1 frame buffer
• Full qwerty keyboard with arrow keys and function keys for user input
• 128 bytes of main RAM
• 256 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data (Like Bad Apple!!)
• 7 testable flags
• Full 7 bit character set (a custom one, so not ASCII) which uses 4x8 characters
• Can be started, stopped and reset from the UI
• Almost fully compatible with URCL
MPU 7 ISA:
https://docs.google.com/spreadsheets/d/1fgXPalCBTGg-X3QGXmNagxAMHoiOW_9nbOgaJl7fFoY/edit?usp=sharing
MPU 7 World download is available in the URCL discord:
https://discord.gg/Nv8jzWg5j8
If you want to support me creating these videos, Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
![MPU 7 Gradient Line Drawer [ 2 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/b5EMtdrnv-0/mqdefault.jpg "MPU 7 Gradient Line Drawer [ 2 Hz Minecraft Redstone CPU ]
The MPU 7 is my latest and fastest Minecraft Redstone CPU.
This video is at 16x speed and the carpet mod tick speed is set to 2 times speed.
Here the MPU 7 is drawing a triangle using a line drawing algorithm that calculates the gradient of the line as a fixed point value. Then the coordinates of the line are found by incrementing the x coordinate and adding the gradient to the y coordinate.
The flashing horizontal line is the cursor. This just shows what area of the screen the MPU 7 is currently writing to.
The coordinates of the triangle are:
(20, 2)
(5, 9)
(25, 14)
This program took a total of 3145 cycles (26 minutes and 12.5 seconds) to run. This includes the time spend initialising the registers/ram and the time draw to the display.
In theory this algorithm should be faster than Bresenhams but surprisingly it ended up being slightly slower. Im guessing that the difference is mostly due to the program being less optimised meaning if this program was rewritten it may end up being faster.
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 7 Specs:
• No command blocks or pistons
• 2 Hz clock speed (5 ticks or 0.5 seconds per clock pulse)
• 5 stage waterfall pipeline (Fetch1 - Fetch2 - Decode - Execute - Writeback)
• 10 general purpose simulated dual read registers (with no read before write hazards because of the automatic forwarding)
• 8 bit word length
• 256 word instruction ROM x2
• 32 bit instruction length (that includes an 8 bit immediate value)
• VLIW architecture
• 32 bit hardware BCD converter
• 8 bit hardware multiplier
• 8 bit hardware divider
• 8 bit RNG
• 64x32 pixel display (1x1 pixels) which can be shifted upwards 8 pixels whenever needed
• 1 frame buffer
• Full qwerty keyboard with arrow keys and function keys for user input
• 128 bytes of main RAM
• 256 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data (Like Bad Apple!!)
• 7 testable flags
• Full 7 bit character set (a custom one, so not ASCII) which uses 4x8 characters
• Can be started, stopped and reset from the UI
• Almost fully compatible with URCL
MPU 7 ISA:
https://docs.google.com/spreadsheets/d/1fgXPalCBTGg-X3QGXmNagxAMHoiOW_9nbOgaJl7fFoY/edit?usp=sharing
MPU 7 World download is available in the URCL discord:
https://discord.gg/Nv8jzWg5j8
If you want to support me creating these videos, Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
![MPU 7 - 4 Function Calculator [ 2 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/dPh7R_Q_9rI/mqdefault.jpg "MPU 7 - 4 Function Calculator [ 2 Hz Minecraft Redstone CPU ]
The MPU 7 is my latest and fastest Minecraft Redstone CPU.
Here the MPU 7 is allows the user to type in a number or an operator (+ - * /) followed by a number.
If a number is entered without an operator, then the accumulator is set to that number. Otherwise if an operator and number is given, it will perform that operator with that number on the value previously in the accumulator.
After each operation it prints out the resulting value to the display.
The program only supports integers from 0 to 99 - so no negative numbers or non-integers. The program could be rewritten to support these and add more than just 4 functions, but there would be almost no point.
The keyboard has a target block for each key and I throw a snowball at it to activate it. Annoyingly replay mod doesnt record the players hand, so you cannot see me holding and throwing snowballs at it in the video.
The video has been sped up to 2 times speed to make it less boring to watch and the tick rate has been sped up by carpet mod meaning it is running as fast as it can on my IRL computer.
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 7 Specs:
• No command blocks or pistons
• 2 Hz clock speed (5 ticks or 0.5 seconds per clock pulse)
• 5 stage waterfall pipeline (Fetch1 - Fetch2 - Decode - Execute - Writeback)
• 10 general purpose simulated dual read registers (with no read before write hazards because of the automatic forwarding)
• 8 bit word length
• 256 word instruction ROM x2
• 32 bit instruction length (that includes an 8 bit immediate value)
• VLIW architecture
• 32 bit hardware BCD converter
• 8 bit hardware multiplier
• 8 bit hardware divider
• 8 bit RNG
• 64x32 pixel display (1x1 pixels) which can be shifted upwards 8 pixels whenever needed
• 1 frame buffer
• Full qwerty keyboard with arrow keys and function keys for user input
• 128 bytes of main RAM
• 256 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data (Like Bad Apple!!)
• 7 testable flags
• Full 7 bit character set (a custom one, so not ASCII) which uses 4x8 characters
• Can be started, stopped and reset from the UI
• Almost fully compatible with URCL
MPU 7 ISA:
https://docs.google.com/spreadsheets/d/1fgXPalCBTGg-X3QGXmNagxAMHoiOW_9nbOgaJl7fFoY/edit?usp=sharing
MPU 7 World download is available in the URCL discord:
https://discord.gg/Nv8jzWg5j8
If you want to support me creating these videos, Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
