Hybrid energy-efficient digital currency
Novacoin is a decentralized electronic cash system based on an open-source, peer-to-peer internet protocol. It works without a central server or trusted parties. Users hold the ECDSA private keys to their own money and transact directly with each other, with the help of the network to check for double-spending. They are also able to participate in the network protection using own money or computing power. A hybrid Proof-of-Work & Proof-of-Stake scheme is used to provide a protection against double-spend. The main project repository: https://github.com/novacoin-project/novacoin
The goal of the project is now to develop a user library called libpfm4 to help setup performance events for use with the perf_events Linux kernel interface. The development of the perfmon kernel subsystem, libpfm and pfmon has now stopped.
an object-oriented language with late binding
ELENA is a general-purpose, pure object-oriented language with late binding. It promotes more object-oriented program design, reusable and more standardized code. The package includes compiler, IDE, ELENA libraries and samples
A 448-bit Edwards curve
This is an implementation of elliptic curve cryptography using the Montgomery and Edwards curves Curve25519, Ed25519, Ed448-Goldilocks and Curve448, using the Decaf / Ristretto encoding.
an ethernet-based file system for DOS
EtherDFS is an 'installable filesystem' TSR for DOS. It maps a drive from a remote computer (typically Linux-based) to a local drive letter, using raw ethernet frames to communicate. For years, I was using LapLink to transfer files between my various "retro" computers. It works, yes, but it's also annoyingly slow and requires constant attention. One day I thought, "Wouldn't it be amazing if all my PCs could share a common network drive, similarly to how NFS operates in the *nix world?". This day EtherDFS was born. I clearly didn't invent anything - the concept has been around almost as long as the first IBM PC, and several commercial products addressed that need in the past. I am not aware, however, of any free and open-source solution.
SIMD macro assembler unified for ARM, MIPS, PPC and x86
UniSIMD assembler is a high-level C/C++ macro assembler framework unified across ARM, MIPS, Power and x86 architectures. It establishes a subset of both BASE and SIMD instruction sets with clearly defined common API, so that application logic can be written and maintained in one place without code replication. The assembler itself isn't a separate tool, but rather a collection of C/C++ header files, which applications need to include directly in order to use. At present, Intel SSE/SSE2/SSE4 and AVX/AVX2/AVX-512 (32/64-bit x86 ISAs), ARMv7 NEON/NEONv2, ARMv8 AArch32/AArch64 NEON (32/64-bit ARM ISAs), MIPS 32/64-bit r5/r6 MSA and Power 32/64-bit VMX/VSX (little/big-endian ISAs) are mostly implemented, although scalar improvements, horizontal reductions, wider SIMD vectors with zeroing/merging predicates in 3/4-operand instructions, are planned as extensions to current 2/3-operand SPMD-driven vertical SIMD ISA. See README file.
The goal of this project is to create a simple "forth" environment for cortex-M Целью данного проекта являеться создания простого окружения "FORTH" для микроконтроллеров ARM Cortex-M
Realtime raytracer using SIMD on ARM, MIPS, PPC and x86
QuadRay engine is a realtime raytracing project aimed at full SIMD utilization on ARM, MIPS, Power and x86 architectures. The efficient use of SIMD is achieved by processing four rays at a time to match SIMD register width (hence the name). The rendering core of the engine is written on a unified SIMD assembler allowing single assembler code to be compatible with different processor architectures, thus reducing the need to maintain multiple parallel versions. At present, Intel SSE/SSE2/SSE4 and AVX/AVX2/AVX-512 (32/64-bit x86 ISAs), ARMv7 NEON/NEONv2, ARMv8 AArch32/AArch64 NEON (32/64-bit ARM ISAs), MIPS 32/64-bit r5/r6 MSA and Power 32/64-bit VMX/VSX (little/big-endian ISAs) are mostly implemented, although scalar improvements, horizontal reductions, wider SIMD vectors with zeroing/merging predicates in 3/4-operand instructions, are planned as extensions to current 2/3-operand SPMD-driven vertical SIMD ISA. See README file.
FM synthesis file player
DRO Magic is a utility that reads files in the DRO version 1 format, and plays through them in DOS on the YM3812 sound chip that came with the Adlib and Soundblaster sound cards. It also works in Dosbox.
tiny DOS tool that computes BSD checksums of files
bsum is a tiny tool (256 bytes!) that computes the BSD checksum of any file. It requires only a few kilobytes of memory, and is fast even on an 8086-class PC. bsum supports files of any size (as long as your file system is able to handle them). The BSD checksum is displayed in hexadecimal format (ie. four alphanumeric characters, like "C2E1"). bsum is an excellent candidate for veryfing data integrity on systems that are very constrained in terms of disk space, memory or CPU power. Typically, bsum can be used to verify that files transferred by unreliable means arrived intact.
a tiny Wake-on-Lan utility for DOS
DWOL is a tiny tool that computes and sends "wake-on-lan" packets under 16-bit DOS. Wake-On-LAN (WOL) is an Ethernet standard that allows a computer to be turned on by a network message. The WOL technology has been designed by AMD back in 1995, and widely implemented inside many Ethernet chips and mainboards since then.