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Everything is working great in this build!  So I will be taking about a week break from this.
Well except single pixel drawing on GPU but more on that later.

I included a Hello World program and a screen clear test program running by default.
But I would love to see what programs people can come up with. So definitely fork this and make your own programs for it, and link them in the comments below!

Also I am working on adding more instructions for the cpu and the gpu, let me know what might be useful in the comments and definitely check my in progress updates below!

I am running into an issue with per pixel drawing giving a contention error which doesn't make sense as i have tested the chip. unless the rgb screen col and row pins are also outputs i don't get what is going on.

For now though i'm taking a break from that and working on implementing some more of the OPs.

Here is a list of instructions. I'll add descriptions soon.
Anything with a * before it is not implemented yet.
0 NOP [0]
1 JMP [1]
2 SETA [10]
3 SETB [11]
4 LDA [100]
5 LDB [101]
6 WRA [110]
7 WRB [111]

*8 IA [1000]
*9 IB [1001]
*10 DA [1010]
*11 DB [1011]
*12 SLA [1100]
*13 SLB [1101]
*14 SRA [1110]
*15 SRB [1111]

16 ADD [1 0000]
17 SUB [1 0001]
18 MUL [1 0010]
19 DIV [1 0011]

20 EQL [1 0100]
21 NEQL [1 0101]
22 GRT [1 0110]
23 LSS [1 0111]
24 GRQL [1 1000]
25 LEQL [1 1001]

26 SSP [1 1010]
27 PUSH [1 1011]
28 POP [1 1100]
29 LTS [1 1101]

*30 PROC [1 1110]
*31 EPROC [1 1111]

32 SAS [10 0000]

project.name
1 Stars     65 Views
User:

Custom 16 Bit CPU 34

Custom 16 Bit CPU 34

To change sample program, copy a eeprom from the programs tab, and replace the one near the start of the circuit in main with it

to start it, toggle on and off the CLR button down by the clock circuit in Main

Explanation of how someone got many clock cycles per clock update:https://circuitverse.org/users/4699/projects/circuitverse-delay-introduction

Also after about 2 days I successfully coded and implemented Coonways game of life in here in a 16x16 grid(so each grid takes 256 entries in the storage and theres 2 of them)


project.name
0 Stars     63 Views
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About the Combinox R1:

This is the third 16-bit CPU I have made. Its new name was inspired by the new combinational code. It is also my first computer to feature a graphics and base ten display. As a result of its brand new architecture, code, and clock it is much faster than my previous CPUs. 


Directions for use:

Choose the desired EEPROM program and insert it into the slot. First press the "RESET" button. Now press the "ON" button and enjoy your program.


Descriptions of programs:

blank: A blank EEPROM to be coded.

count up forever: Counts up by one until it reaches 65,535 then loops back to 0.

2+2: adds 2+2 and displays the output to the number display

transfer from keyboard to display: Displays the ascii value of whatever key is being entered on the keyboard.

random noise: Displays random noise on the screen.

Fibonacci: calculates the Fibonacci sequence 


Credits:

Sanderokian Stfetoneri - clock

Sanderokian Stfetoneri - 16 bit division