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vm: switch from .avm to .nef

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This commit is contained in:
Anna Shaleva 2020-06-25 10:36:21 +03:00
parent c7746da023
commit b387deaa05
3 changed files with 18 additions and 13 deletions
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8
docs/vm.md
View file

@ -1,6 +1,6 @@
# NEO-GO-VM
A cross platform virtual machine implementation for `avm` compatible programs.
A cross platform virtual machine implementation for `NEF` compatible programs.
# Installation
@ -46,7 +46,7 @@ Commands:
help display help
ip Show current instruction
istack Show invocation stack contents
loadavm Load an avm script into the VM
loadnef Load an avm script in NEF format into the VM
loadgo Compile and load a Go file into the VM
loadhex Load a hex-encoded script string into the VM
ops Dump opcodes of the current loaded program
@ -70,10 +70,10 @@ Usage: step [<n>]
## Loading in your script
To load an avm script into the VM:
To load an avm script in NEF format into the VM:
```
NEO-GO-VM > loadavm ../contract.avm
NEO-GO-VM > loadnef ../contract.nef
READY: loaded 36 instructions
```

12
pkg/vm/cli/cli.go
View file

@ -67,12 +67,12 @@ var commands = []*ishell.Cmd{
Func: handleXStack,
},
{
Name: "loadavm",
Help: "Load an avm script into the VM",
LongHelp: `Usage: loadavm <file>
Name: "loadnef",
Help: "Load a NEF-consistent script into the VM",
LongHelp: `Usage: loadnef <file>
<file> is mandatory parameter, example:
> load /path/to/script.avm`,
Func: handleLoadAVM,
> load /path/to/script.nef`,
Func: handleLoadNEF,
},
{
Name: "loadbase64",
@ -241,7 +241,7 @@ func handleXStack(c *ishell.Context) {
c.Println(v.Stack(c.Cmd.Name))
}
func handleLoadAVM(c *ishell.Context) {
func handleLoadNEF(c *ishell.Context) {
v := getVMFromContext(c)
if len(c.Args) < 1 {
c.Err(errors.New("missing parameter <file>"))

11
pkg/vm/vm.go
View file

@ -14,6 +14,7 @@ import (
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
@ -86,7 +87,7 @@ type VM struct {
keys map[string]*keys.PublicKey
}
// New returns a new VM object ready to load .avm bytecode scripts.
// New returns a new VM object ready to load AVM bytecode scripts.
func New() *VM {
return NewWithTrigger(trigger.System)
}
@ -235,13 +236,17 @@ func (v *VM) AddBreakPointRel(n int) {
v.AddBreakPoint(ctx.ip + n)
}
// LoadFile loads a program from the given path, ready to execute it.
// LoadFile loads a program in NEF format from the given path, ready to execute it.
func (v *VM) LoadFile(path string) error {
b, err := ioutil.ReadFile(path)
if err != nil {
return err
}
v.Load(b)
f, err := nef.FileFromBytes(b)
if err != nil {
return err
}
v.Load(f.Script)
return nil
}