mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-12-23 23:25:22 +00:00
69c3e645b6
* changed vm commands to match more of the standard * fixed Uint16 jmp bug in VM * moved test to vm + fixed numnotequal bug * fixed broken tests * moved compiler tests to vm tests * added basic for support + inc and dec stmts * bumped version |
||
|---|---|---|
| .. | ||
| cli | ||
| compiler | ||
| smartcontract | ||
| test | ||
| context.go | ||
| interop.go | ||
| opcode.go | ||
| opcode_string.go | ||
| opcode_test.go | ||
| output.go | ||
| README.md | ||
| script_builder.go | ||
| script_builder_test.go | ||
| stack.go | ||
| stack_item.go | ||
| stack_test.go | ||
| state.go | ||
| syscall.go | ||
| vm.go | ||
NEO-GO-VM
A cross platform virtual machine implementation for avm compatible programs.
Installation
With neo-go
Install dependencies.
neo-go uses dep as its dependency manager. After installing deps you can run:
make deps
Build the neo-go cli:
make build
Start the virtual machine:
./bin/neo-go vm
_ ____________ __________ _ ____ ___
/ | / / ____/ __ \ / ____/ __ \ | | / / |/ /
/ |/ / __/ / / / /_____/ / __/ / / /____| | / / /|_/ /
/ /| / /___/ /_/ /_____/ /_/ / /_/ /_____/ |/ / / / /
/_/ |_/_____/\____/ \____/\____/ |___/_/ /_/
NEO-GO-VM >
Standalone
More information about standalone installation coming soon.
Usage
_ ____________ __________ _ ____ ___
/ | / / ____/ __ \ / ____/ __ \ | | / / |/ /
/ |/ / __/ / / / /_____/ / __/ / / /____| | / / /|_/ /
/ /| / /___/ /_/ /_____/ /_/ / /_/ /_____/ |/ / / / /
/_/ |_/_____/\____/ \____/\____/ |___/_/ /_/
NEO-GO-VM > help
COMMAND USAGE
step step (n) instruction in the program (> step 10)
ops show the opcodes of the current loaded program
ip show the current instruction
estack show evaluation stack details
astack show alt stack details
istack show invocation stack details
run execute the current loaded script
cont continue execution of the current loaded script
help show available commands
exit exit the VM prompt
break place a breakpoint (> break 1)
load load a script into the VM (> load /path/to/script.avm)
Loading in your script
To load a script into the VM:
NEO-GO-VM > load ../contract.avm
READY
Run the script:
NEO-GO-VM > run
[
{
"value": 1,
"type": "BigInteger"
}
]
Debugging
The neo-go-vm provides a debugger to inspect your program in-depth.
Step 4 instructions.
NEO-GO-VM > step 4
at breakpoint 4 (Opush4)
Using just step will execute 1 instruction at a time.
NEO-GO-VM > step
instruction pointer at 5 (Odup)
To place breakpoints:
NEO-GO-VM > break 10
breakpoint added at instruction 10
NEO-GO-VM > resume
at breakpoint 10 (Osetitem)
Inspecting the stack:
NEO-GO-VM > stack
[
{
"value": [
null,
null,
null,
null,
null,
null,
null
],
"type": "Array"
},
{
"value": 4,
"type": "BigInteger"
}
]
And a lot more features coming next weeks..