p-memo

A pinocchio-based Memo program.

Overview

A re-implementation of SPL Memo program using pinocchio inspired by Cavey's ASMEMO program.

There are three "version" included:

1. same output as SPL Memo (branch main)

   Program PMemo11111111111111111111111111111111111111 invoke [1]
   Program log: Signed by 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM
   Program log: Memo (len 60): "why does spl memo use 36000 cus to print len 60 msg of ascii"
   Program PMemo11111111111111111111111111111111111111 consumed 2320 of 1400000 compute units
   Program PMemo11111111111111111111111111111111111111 success
   

2. same information as SPL Memo, but different formatting (branch syscall)

   Program PMemo11111111111111111111111111111111111111 invoke [1]
   Program log: Signed by:
   Program log: 1111111QLbz7JHiBTspS962RLKV8GndWFwiEaqKM
   Program log: Memo (len 60): "why does spl memo use 36000 cus to print len 60 msg of ascii"
   Program PMemo11111111111111111111111111111111111111 consumed 641 of 1400000 compute units
   Program PMemo11111111111111111111111111111111111111 success
   

3. logs the memo message only, same as ASMEMO (branch asmemo)

   Program PMemo11111111111111111111111111111111111111 invoke [1]
   Program log: why does spl memo use 36000 cus to print len 60 msg of ascii
   Program PMemo11111111111111111111111111111111111111 consumed 125 of 1400000 compute units
   Program PMemo11111111111111111111111111111111111111 success
   

4. no program output (branch minimal)

   Program PMemo11111111111111111111111111111111111111 invoke [1]
   Program PMemo11111111111111111111111111111111111111 consumed 22 of 1400000 compute units
   Program PMemo11111111111111111111111111111111111111 success
   

Features

Program size: 1280 bytes

CU comsumption:

# signers	p-memo (minimal)	p-memo (asmemo)	p-memo (syscall)	p-memo	SPL Memo
0	4	108	415	419	2022
1	21	123	641	1813	13668
2	36	136	756	3198	25267

Note

Using Solana CLI v2.2.13.

Building

To build the programs from the root directory of the repository:

cargo build-sbf

Testing

To run the tests:

cargo test-sbf

License

The code is licensed under the Apache License Version 2.0