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Update from task a12066fc-94f2-4ff0-87de-4ecf96c6d079 - #5

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mathcode220-math wants to merge 4 commits into
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occp-hardware-integration-6d079
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Update from task a12066fc-94f2-4ff0-87de-4ecf96c6d079#5
mathcode220-math wants to merge 4 commits into
mainfrom
occp-hardware-integration-6d079

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This PR was created by qwen-chat coder for task a12066fc-94f2-4ff0-87de-4ecf96c6d079.

…ive documentation

Key features implemented:
- New Pocket-LLM hardware compiler with weight extraction, matrix tiling, and quantization capabilities
- Complete software bridge API with AXI4-Lite communication protocol and co-simulation mode
- Updated .gitignore with comprehensive file exclusion patterns for development environments

The compiler transforms high-level AI model weights into optimized binary format for OCCP silicon co-processor with automatic tiling and INT8 quantization support. The software bridge provides low-level MMIO access to hardware registers and manages SRAM buffer streaming for matrix operations. Both components include extensive documentation with API references, quick start guides, and integration examples.
…build system

- Modified .gitignore to streamline ignored file patterns and remove redundant entries
- Updated makefile to add POSIX C source definition and improve compiler flags
- Enhanced occp_bridge.c with proper POSIX compliance and improved initialization flow
- Updated occp_bridge.h to include necessary headers and add POSIX C source definition
- Added comprehensive test suite and simulation mode support for hardware abstraction

The changes improve code portability through POSIX compliance while maintaining the core functionality of the OCCP bridge for matrix operations. The build system now properly handles both shared library and test executable compilation targets.
- Fixed critical syntax error in sw/occp_bridge.c where #define_POSIX_C_SOURCE was missing space
- Replaced deprecated usleep(1) with nanosleep() for POSIX compliance and better timing precision
- Updated .gitignore to include common build artifacts and temporary files
- Recompiled test binary to reflect timing improvements and ensure proper functionality
The changes address the compiler warning issue and fix the syntax error while maintaining all existing functionality and improving system compatibility.
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