https://github.com/donpdonp/bitcoin-wasm

The bitcoin script interpreter (cpp) compiled to webassembly.
https://github.com/donpdonp/bitcoin-wasm

bitcoin webassembly

Last synced: about 2 months ago
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The bitcoin script interpreter (cpp) compiled to webassembly.

• Host: GitHub
• URL: https://github.com/donpdonp/bitcoin-wasm
• Owner: donpdonp
• License: cc0-1.0
• Created: 2018-02-26T04:54:22.000Z (almost 7 years ago)
• Default Branch: master
• Last Pushed: 2022-08-26T18:12:46.000Z (over 2 years ago)
• Last Synced: 2024-08-03T18:15:14.196Z (5 months ago)
• Topics: bitcoin, webassembly
• Language: C
• Homepage: http://donpdonp.github.io/bitcoin-wasm/
• Size: 8.6 MB
• Stars: 11
• Watchers: 2
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• AwesomeInterpreter - bitcoin-wasm

README

        
Build the script/interpreter part of the bitcoin code base for webasm.

## status

2018-Mar-13 All opcode are supported except OP_CHECKSIG (openssl/ecdsa libs are not ported to webasm yet)

## build

```bash

bitcoin-wasm $ make

building for dogecoin 1.10.0

emcc -s 'EXPORTED_FUNCTIONS...

-rw-rw-r-- 1 donp donp 636982 Mar  5 14:13 build/bridge.wasm

```

## run in node

The run.js file loads a script containing 1, 2, OP_ADD operation. This pushes

two values to the stack, then runs OP_ADD. The resulting stack is the result

of the ADD.

```bash

bitcoin-wasm $ make node

cd build; node ../run.js

loading bridge.wasm

compiling script: [ '1', '2', 'OP_ADD' ]

stringCompile 3 opcode strings 

#0 1 (0x1) number

#1 2 (0x2) number

#2 93 OP_ADD opcode

script opcount: 3 hex: 0101010293

input script compiled to:  1 2 OP_ADD

scriptRun #0 begin

scriptRun GOOD

stacktoChar memcopy row 0 len 1

script SUCCESS

Uint8Array [ 3 ]

```

## run in a browser

bridge.js is loaded as any other .js file in an html script tag. it will expect

bridge.wasm to exist at the same path.