![3D Rotating Cube !! [ MPU 8 | 3.3 Hz Minecraft Redstone CPU ] @ModPunchtree](https://i.ytimg.com/vi/epuTvLgKYbE/maxresdefault.jpg)
Uploaded July 2022 | Updated September 2026, 2 weeks ago
The MPU 8 is my latest and fastest Minecraft Redstone CPU.
Here the MPU 8 is rendering a 3D cube and rotating it.
The matrix multiplications for calculating the rotation and rasterisation of the cube are all being calculated each frame by the CPU.
This is NOT a video and it does NOT use precalculated points - the positions of the points are ALL calculated on the CPU.
For trigonometry i simplified it a lot by assuming that Sin(x) = x and Cos(x) = 1 where x is a small angle, this gives an approximation that is good enough for a couple minutes.
In this program the cube becomes more distorted as time progresses due to the rounding errors building up from the division operations as well as the trigonometry assumption.
(this is why the cube looks quite twisted and stretched towards the end)
This video been sped up 8x and the tick speed has been set to 800 times speed (so a total speed up of 6400x).
Join the URCL (Universal Reduced Computer Language) discord:
discord.gg/Nv8jzWg5j8
MPU 8 Specs:
• No command blocks or pistons
• 3.3 Hz clock speed (3 ticks or 0.3 seconds per clock pulse)
• 9 stage waterfall pipeline
• 12 general purpose simulated dual read registers (with automatic forwarding at 6 ticks)
• 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
• 64x64 pixel display 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
• 512 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data
• 13 testable flags
• 8 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 8 ISA:
docs.google.com/spreadsheets/d/1KRoZNu5ic36-vcP-6llN8L27ZvLxW5ILiaOX5gcoAC4/edit?usp=sharing
If you want to support me creating these videos, my Patreon is:
patreon.com/modpunchtree
or my PayPal link is:
paypal.me/modpunchtree
The MPU 8 is my latest and fastest Minecraft Redstone CPU.
Here the MPU 8 is rendering a 3D cube and rotating it.
The matrix multiplications for calculating the rotation and rasterisation of the cube are all being calculated each frame by the CPU.
This is NOT a video and it does NOT use precalculated points - the positions of the points are ALL calculated on the CPU.
For trigonometry i simplified it a lot by assuming that Sin(x) = x and Cos(x) = 1 where x is a small angle, this gives an approximation that is good enough for a couple minutes.
In this program the cube becomes more distorted as time progresses due to the rounding errors building up from the division operations as well as the trigonometry assumption.
(this is why the cube looks quite twisted and stretched towards the end)
This video been sped up 8x and the tick speed has been set to 800 times speed (so a total speed up of 6400x).
Join the URCL (Universal Reduced Computer Language) discord:
discord.gg/Nv8jzWg5j8
MPU 8 Specs:
• No command blocks or pistons
• 3.3 Hz clock speed (3 ticks or 0.3 seconds per clock pulse)
• 9 stage waterfall pipeline
• 12 general purpose simulated dual read registers (with automatic forwarding at 6 ticks)
• 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
• 64x64 pixel display 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
• 512 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data
• 13 testable flags
• 8 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 8 ISA:
docs.google.com/spreadsheets/d/1KRoZNu5ic36-vcP-6llN8L27ZvLxW5ILiaOX5gcoAC4/edit?usp=sharing
If you want to support me creating these videos, my Patreon is:
patreon.com/modpunchtree
or my PayPal link is:
paypal.me/modpunchtree
![3D Rotating Cube !! [ MPU 8 | 3.3 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/epuTvLgKYbE/mqdefault.jpg "3D Rotating Cube !! [ MPU 8 | 3.3 Hz Minecraft Redstone CPU ]
The MPU 8 is my latest and fastest Minecraft Redstone CPU.
Here the MPU 8 is rendering a 3D cube and rotating it.
The matrix multiplications for calculating the rotation and rasterisation of the cube are all being calculated each frame by the CPU.
This is NOT a video and it does NOT use precalculated points - the positions of the points are ALL calculated on the CPU.
For trigonometry i simplified it a lot by assuming that Sin(x) = x and Cos(x) = 1 where x is a small angle, this gives an approximation that is good enough for a couple minutes.
In this program the cube becomes more distorted as time progresses due to the rounding errors building up from the division operations as well as the trigonometry assumption.
(this is why the cube looks quite twisted and stretched towards the end)
This video been sped up 8x and the tick speed has been set to 800 times speed (so a total speed up of 6400x).
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 8 Specs:
• No command blocks or pistons
• 3.3 Hz clock speed (3 ticks or 0.3 seconds per clock pulse)
• 9 stage waterfall pipeline
• 12 general purpose simulated dual read registers (with automatic forwarding at 6 ticks)
• 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
• 64x64 pixel display 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
• 512 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data
• 13 testable flags
• 8 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 8 ISA:
https://docs.google.com/spreadsheets/d/1KRoZNu5ic36-vcP-6llN8L27ZvLxW5ILiaOX5gcoAC4/edit?usp=sharing
If you want to support me creating these videos, my Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
![MPU 8 Fizzbuzz [ 3.3 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/g0mmNctz7w4/mqdefault.jpg "MPU 8 Fizzbuzz [ 3.3 Hz Minecraft Redstone CPU ]
The MPU 8 is my latest and fastest Minecraft Redstone CPU.
Here the MPU 8 is running a FizzBuzz program.
Where for each value:
if the value is divisible by 3 it prints Fizz,
else if the value is divisible by 5 it prints Buzz,
else if its divisible by both 3 and 5 it prints FizzBuzz,
else it prints the value itself in base 10.
This video has been sped up 2 times and the tick speed has been set to 10 times speed. (so a net speed up of 20 times)
This program took 732 cycles to run (12 minutes and 12 seconds at default Minecraft speed).
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 8 Specs:
• No command blocks or pistons
• 3.3 Hz clock speed (3 ticks or 0.3 seconds per clock pulse)
• 9 stage waterfall pipeline
• 12 general purpose simulated dual read registers (with automatic forwarding at 6 ticks)
• 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
• 64x64 pixel display 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
• 512 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data
• 13 testable flags
• 8 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 8 ISA:
https://docs.google.com/spreadsheets/d/1KRoZNu5ic36-vcP-6llN8L27ZvLxW5ILiaOX5gcoAC4/edit?usp=sharing
If you want to support me creating these videos, my Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
![MPU 7 - 16 bit Fibonacci [ 2 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/hEcQe8sO6x4/mqdefault.jpg "MPU 7 - 16 bit Fibonacci [ 2 Hz Minecraft Redstone CPU ]
The MPU 7 is my latest and fastest Minecraft redstone CPU.
To get the Fibonacci sequence, you simply add the previous 2 numbers together to calculate the next number - starting with 0 and 1.
The MPU 7 can calculate the next 16 bit number every 2 clock cycles (10 ticks or 1 second), if you ignoring converting the values to BCD and printing them to the display.
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
• 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, my PayPal link is: https://paypal.me/modpunchtree")
![MPU 7 Insertion Sort [ 2 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/j2AYIA4qBdg/mqdefault.jpg "MPU 7 Insertion Sort [ 2 Hz Minecraft Redstone CPU ]
The MPU 7 is my latest and fastest Minecraft redstone CPU.
In this video the MPU 7 sorts a reversed array of 10 numbers using insertion sort.
Insertion sort is a simple type of sorting algorithm which requires a lot of reading an writing to the RAM. Since the RAM read speed is quite slow on the MPU 7, this algorithm runs quite slowly as the CPU spends a lot of time stalling for RAM reads.
This video is at 1x speed and does not use any tick speed up from carpet mod. So the speed shown here includes a small amount of lag but should be close to 20 ticks per second.
The screen delay and RAM delay is especially noticeable at the beginning and end of the video when it prints out the array of 10 numbers to the screen which takes a long time.
On paper (i.e. without lag) it takes:
• roughly 67 cycles to print the initial list (1 min 7 secs)
• roughly 456 cycles to perform the insertion sort (3 mins 48 seconds)
• roughly 67 cycles to print the final list (1 min 7 secs)
Note that these timings do not account for the time before the program counter starts changing or the time after the program counter stops changing or the bussing delay between the displays and the control logic inside the CPU.
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
• 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, my PayPal link is: https://paypal.me/modpunchtree")
![3D Rotating Pyramid [ MPU 8 | 3.3 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/kXYh_NLgy6o/mqdefault.jpg "3D Rotating Pyramid [ MPU 8 | 3.3 Hz Minecraft Redstone CPU ]
The MPU 8 is my latest and fastest Minecraft Redstone CPU.
Here the MPU 8 is rendering a 3D square based pyramid and rotating it.
This is using the exact same 3d renderer program as the one used for the 3D rotating cube. I have made this to show that it can render any small 3D shape fairly easily.
The matrix multiplications for calculating the rotation and rasterisation of the cube are all being calculated each frame by the CPU.
This is NOT a video and it does NOT use precalculated points - the positions of the points are ALL calculated on the CPU.
For trigonometry i simplified it a lot by assuming that Sin(x) = x and Cos(x) = 1 where x is a small angle, this gives an approximation that is good enough for a couple minutes.
In this program the pyramid becomes more distorted as time progresses due to the rounding errors building up from the division operations as well as the trigonometry assumption.
(this is why the pyramid looks quite twisted and stretched towards the end)
This video been sped up 8x and the tick speed has been set to 800 times speed (so a total speed up of 6400x).
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 8 Specs:
• No command blocks or pistons
• 3.3 Hz clock speed (3 ticks or 0.3 seconds per clock pulse)
• 9 stage waterfall pipeline
• 12 general purpose simulated dual read registers (with automatic forwarding at 6 ticks)
• 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
• 64x64 pixel display 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
• 512 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data
• 13 testable flags
• 8 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 8 ISA:
https://docs.google.com/spreadsheets/d/1KRoZNu5ic36-vcP-6llN8L27ZvLxW5ILiaOX5gcoAC4/edit?usp=sharing
If you want to support me creating these videos, my Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
![MPU 8 BCD Fibonacci [ 3.3 Hz Minecraft Redstone CPU ]](https://i.ytimg.com/vi/kfDJQwEhs6Q/mqdefault.jpg "MPU 8 BCD Fibonacci [ 3.3 Hz Minecraft Redstone CPU ]
The MPU 8 is my latest and fastest Minecraft Redstone CPU.
Here the MPU 8 is running a simple 8 bit Fibonacci program and for each value - it converts them to base 10 and prints them to the screen. When it the value overflows 8 bits - the program stops.
This video has been sped up 4 times and the tick speed has not been changed.
Join the URCL (Universal Reduced Computer Language) discord:
https://discord.gg/Nv8jzWg5j8
MPU 8 Specs:
• No command blocks or pistons
• 3.3 Hz clock speed (3 ticks or 0.3 seconds per clock pulse)
• 9 stage waterfall pipeline
• 12 general purpose simulated dual read registers (with automatic forwarding at 6 ticks)
• 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
• 64x64 pixel display 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
• 512 bytes of screen RAM
• Up to 128 I/O ports
• External 8 kiB paging ROM for storing large amounts of data
• 13 testable flags
• 8 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 8 ISA:
https://docs.google.com/spreadsheets/d/1KRoZNu5ic36-vcP-6llN8L27ZvLxW5ILiaOX5gcoAC4/edit?usp=sharing
If you want to support me creating these videos, my Patreon is:
https://www.patreon.com/modpunchtree
or my PayPal link is:
https://paypal.me/modpunchtree")
