add cuda

rin/miner/gpu/RinHash-cuda/build-cuda.bat

@@ -0,0 +1,104 @@
+@echo off
+REM RinHash CUDA Build Script
+REM This script attempts to build the CUDA implementation of RinHash
+
+echo ======================================
+echo   RinHash CUDA Miner Build Script
+echo ======================================
+
+REM Check if NVCC is available
+where nvcc >nul 2>nul
+if errorlevel 1 (
+    echo ERROR: NVCC not found in PATH
+    echo Please install CUDA Toolkit
+    goto :error
+)
+
+echo NVCC found: 
+nvcc --version
+echo.
+
+REM Try to find Visual Studio
+set "VS2019_PATH=C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Auxiliary\Build\vcvars64.bat"
+set "VS2022_PATH=C:\Program Files\Microsoft Visual Studio\2022\Community\VC\Auxiliary\Build\vcvars64.bat"
+
+if exist "%VS2022_PATH%" (
+    echo Using Visual Studio 2022...
+    call "%VS2022_PATH%"
+    goto :compile
+)
+
+if exist "%VS2019_PATH%" (
+    echo Using Visual Studio 2019 Build Tools...
+    call "%VS2019_PATH%"
+    goto :compile
+)
+
+echo ERROR: No Visual Studio installation found
+echo.
+echo SOLUTION 1: Install Visual Studio Community 2022 (free)
+echo   - Download from: https://visualstudio.microsoft.com/downloads/
+echo   - Make sure to include "Desktop development with C++" workload
+echo   - Include Windows 10/11 SDK
+echo.
+echo SOLUTION 2: Install Visual Studio Build Tools 2022
+echo   - Download from: https://visualstudio.microsoft.com/downloads/#build-tools-for-visual-studio-2022
+echo   - Include C++ build tools and Windows SDK
+echo.
+goto :error
+
+:compile
+echo.
+echo Building RinHash CUDA miner...
+echo.
+
+REM Compile with NVCC
+nvcc -O3 -arch=sm_50 ^
+     -gencode arch=compute_50,code=sm_50 ^
+     -gencode arch=compute_52,code=sm_52 ^
+     -gencode arch=compute_60,code=sm_60 ^
+     -gencode arch=compute_61,code=sm_61 ^
+     -gencode arch=compute_70,code=sm_70 ^
+     -gencode arch=compute_75,code=sm_75 ^
+     -gencode arch=compute_80,code=sm_80 ^
+     -gencode arch=compute_86,code=sm_86 ^
+     -I. rinhash.cu sha3-256.cu ^
+     -o rinhash-cuda-miner.exe ^
+     -lcuda -lcudart
+
+if errorlevel 1 (
+    echo.
+    echo BUILD FAILED!
+    echo.
+    echo Common issues:
+    echo 1. Missing Windows SDK - install via Visual Studio Installer
+    echo 2. Incompatible Visual Studio version
+    echo 3. Missing CUDA runtime libraries
+    echo.
+    goto :error
+)
+
+echo.
+echo ======================================
+echo   BUILD SUCCESSFUL!
+echo ======================================
+echo.
+echo Executable created: rinhash-cuda-miner.exe
+echo.
+echo To test the miner:
+echo   rinhash-cuda-miner.exe --help
+echo.
+goto :end
+
+:error
+echo.
+echo ======================================
+echo   BUILD FAILED!
+echo ======================================
+echo.
+pause
+exit /b 1
+
+:end
+echo Build completed successfully!
+pause