https://github.com/nathsou/cocovm

Tiny register-based VM https://nathsou.github.io/CocoVM/
https://github.com/nathsou/cocovm

Last synced: about 2 months ago
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Tiny register-based VM https://nathsou.github.io/CocoVM/

• Host: GitHub
• URL: https://github.com/nathsou/cocovm
• Owner: nathsou
• Created: 2016-11-02T22:15:20.000Z (about 8 years ago)
• Default Branch: master
• Last Pushed: 2016-12-24T09:58:14.000Z (about 8 years ago)
• Last Synced: 2024-10-11T20:42:55.331Z (3 months ago)
• Language: TypeScript
• Homepage:
• Size: 1.12 MB
• Stars: 2
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# CocoVM

Coco is a small and flexible CPU emulator, you can choose the number of registers, the amount of RAM and the architecture (4bits, 8bits, 128bits...)

###Example

```asm

;fibonacci sequence

;prints fib(15)

MOV @4, #15 

;init data

MOV %0, #1

MOV %1, #1

MOV %2, #0

MOV %3, #2

JMP main

main:

INC %3

MOV %2, %0

ADD %0, %1

MOV %1, %2

CMP %3, @4

JNE main

OUT %0

HLT

           

```

##Addressing modes

Coco supports 3 addressing modes:

###register address (%)

to access the content of the nth register

```asm

MOV %0, %n

```

The 0th register ("%0") can be seen as the accumulator.

###RAM address (@)

to access the nth byte in RAM

```asm

MOV %0, @n

```

###immediate (#)

to use a numerical directly 

```asm

MOV %0, #1789

```