gcash / meep Goto Github PK
View Code? Open in Web Editor NEWMeep is a command line Bitcoin Cash script debugger
License: MIT License
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meep's Issues
OP_0 does not display 0 on the stack just an empty line
When encountering OP_0 the program just display an empty line instead of the expected '0'
script exceeds maximum signature density
A valid script using bitcoin-abc regtest only succeeds sometimes with meep debug mode.
If it doesn't succeed then this is the error: Fail :( script exceeds maximum signature density which is then followed by Fail :( past input scripts 3:0 3:xxxx when hit F4 again.
It seems the script execution will only result with Success!!! 1/10 attempts.
Using the latest meep release, here's the debug command I'm using:
meep debug -t \
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 \
-a 546 \
-i 0 \
-s a9141e14ddc4ec5c292de9a377e767f683e041447bcd87
Possible bug with OP_CHECKSIG
The following command fails in meep on the final OP_CHECKSIG:
meep debug --idx=0 --amt=10200 --pkscript=a9148baa7f7c897382d277f6eb8a61e2666358364b2387 --tx=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
However, this is indeed a valid transaction and is on the blockchain at https://explorer.bitcoin.com/bch/tx/dbe0a2baa0857606375775fde2a89a6abaac204246ef0ccc13b9a776d0e0b3d7
Darwin installation error
I tried to update my meep installation, but got this error. Possibly related: golang/go#51091
% go version
go version go1.18.2 darwin/amd64
% go install github.com/gcash/meep@latest
# golang.org/x/sys/unix
go/pkg/mod/golang.org/x/[email protected]/unix/syscall_darwin.1_13.go:29:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.1_13.go:27:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.1_13.go:40:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:28:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:43:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:59:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:75:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:90:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:105:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:121:3: //go:linkname must refer to declared function or variable
go/pkg/mod/golang.org/x/[email protected]/unix/zsyscall_darwin_amd64.go:121:3: too many errors
installation error "installing executables with 'go get' in module mode is depreciated"
installation error "installing executables with 'go get' in module mode is depreciated", apparently since the release of Go 1.17
meep fails on OP_DUP after OP_UTXOVALUE
It runs up until this OP code:
Then it fails:
Let me know what else you need to help me. Thanks.
"Fail :( script exceeds maximum signature density" error while debuging a confirmed tx
I've got the "Fail :( script exceeds maximum signature density" error message trying to debug the following tx e481e7179c7fb233bfa316482760987e40a643860d0f46abf0a0197819a6dfc8 in Bitcoin Cash mainnet
F-keys for stepping through stack not working on windows
I am having issues on windows using the git bash terminal. Meep runs fine but the commands F3 F4 and ESC don't work.
Because of this I can't step through the stack, it's possible that this is an issue for al windows users.
If there is any quickk fix I'd love to hear it!
Helper text to describe opcode behavior
It would be a nice feature to have to display some text, possibly upon pressing some F button for help, that describes the function of the next opcode to be executed and the stack transformation to be expected.
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