Add rx/mars algorithm: RandomX on Bitcoin-style 80-byte headers#3803
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Add rx/mars algorithm: RandomX on Bitcoin-style 80-byte headers#3803novalis78 wants to merge 2 commits into
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Marscoin uses a Bitcoin-derived consensus with an 80-byte block header (version + prev_hash + merkle_root + timestamp + bits + nonce) where the nonce sits at offset 76. This differs from CryptoNote-family coins which use variable-length blobs with the nonce at offset 39. This change adds a new algorithm variant RX_MARS that uses the same reference RandomX configuration as rx/0 but tells Job::nonceOffset() to return 76 instead of 39. Changes: - src/base/crypto/Algorithm.h: declare RX_MARS = 0x7215126d + kRX_MARS - src/base/crypto/Algorithm.cpp: register rx/mars name, aliases (randomx/mars, rx/marscoin), and include in RandomX order list - src/base/net/stratum/Job.cpp: return 76 from nonceOffset() for RX_MARS No changes to RandomX core, VM, or OpenCL backends. The RxAlgo default path (RandomX_MoneroConfig) is used. Usage: ./xmrig -a rx/mars -o stratum+tcp://pool:port -u WORKER -p x
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Updates the mining instructions to: - Explain why stock xmrig doesn't work (nonce offset mismatch) - Link to our fork at marscoin/xmrig branch marscoin-rx - Link to upstream PR xmrig/xmrig#3803 - Provide git clone + cmake + make build instructions - Update run command to use -a rx/mars Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Builds xmrig on Linux x86_64, macOS (ARM + Intel), and Windows x64 when a version tag is pushed. Publishes as a GitHub Release with SHA-256 checksums for each archive. Triggers on tag push (v*) or manual workflow dispatch. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Marscoin uses a Bitcoin-derived consensus with an 80-byte block header (version + prev_hash + merkle_root + timestamp + bits + nonce) where the nonce sits at offset 76. This differs from CryptoNote-family coins which use variable-length blobs with the nonce at offset 39.
This change adds a new algorithm variant RX_MARS that uses the same reference RandomX configuration as rx/0 but tells Job::nonceOffset() to return 76 instead of 39.
Changes:
No changes to RandomX core, VM, or OpenCL backends. The RxAlgo default path (RandomX_MoneroConfig) is used.
Usage: ./xmrig -a rx/mars -o stratum+tcp://pool:port -u WORKER -p x