CMakeLists.txt

cmake_minimum_required(VERSION 3.19)
project(CPU6502)

set(CMAKE_CXX_STANDARD 20)

# Download and unpack googletest at configure time
configure_file(CMakeLists.txt.in googletest-download/CMakeLists.txt)
execute_process(COMMAND ${CMAKE_COMMAND} -G "${CMAKE_GENERATOR}" .
        RESULT_VARIABLE result
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download)
if (result)
    message(FATAL_ERROR "CMake step for googletest failed: ${result}")
endif ()
execute_process(COMMAND ${CMAKE_COMMAND} --build .
        RESULT_VARIABLE result
        WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/googletest-download)
if (result)
    message(FATAL_ERROR "Build step for googletest failed: ${result}")
endif ()

# Prevent overriding the parent project's compiler/linker
# settings on Windows
set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)

# Add googletest directly to our build. This defines
# the gtest and gtest_main targets.
add_subdirectory(${CMAKE_CURRENT_BINARY_DIR}/googletest-src
        ${CMAKE_CURRENT_BINARY_DIR}/googletest-build
        EXCLUDE_FROM_ALL)

# The gtest/gtest_main targets carry header search path
# dependencies automatically when using CMake 2.8.11 or
# later. Otherwise we have to add them here ourselves.
if (CMAKE_VERSION VERSION_LESS 2.8.11)
    include_directories("${gtest_SOURCE_DIR}/include")
endif ()


add_library(CPU6502_lib lib/Memory.cpp lib/Memory.h lib/Types.h lib/CPU.cpp lib/CPU.h lib/Instructions/JumpToSubroutine.cpp lib/Instructions/JumpToSubroutine.h lib/InstructionInterface.h)
target_include_directories(CPU6502_lib PUBLIC "${PROJECT_SOURCE_DIR}/lib/")

set(TEST_SOURCES
        "tests/main.cpp"
        "tests/ResetMemoryTests.cpp" tests/SimpleLoadAndJumpTests.cpp tests/LDATests.cpp tests/MemoryTests.cpp tests/SimpleInstructionsTests.cpp)

source_group("tests" FILES ${TEST_SOURCES})

add_executable(M6502Test ${TEST_SOURCES})
add_dependencies(M6502Test CPU6502_lib)
target_link_libraries(M6502Test gtest_main)
target_link_libraries(M6502Test CPU6502_lib)