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Implement state saving and loading for CPU and Bus, add tests for various functionalities

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- Added `state.c` to handle saving and loading the state of the CPU and Bus.
- Implemented CRC32 checksum for data integrity verification during state operations.
- Enhanced `README.md` in tests/roms to document new test commands for decimal, interrupt, Apple I, and nestest.
- Created new test files: `run_apple1.c`, `run_decimal.c`, `run_interrupt.c`, `run_nestest.c`, and `run_vectors.c` to validate the new features.
- Updated `run_tests.c` to include tests for state saving/loading and other functionalities.
- Introduced `test_vectors.py` to facilitate downloading and running JSON test vectors for opcode verification.
This commit is contained in:
andwati
2026-07-20 13:55:48 +03:00
parent c6e1c5b3b5
commit 0dcd2ed687
29 changed files with 827 additions and 58 deletions
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Makefile
+83 -4
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@@ -8,15 +8,48 @@ CPPFLAGS += -DHAVE_SDL_UI $(SDL_CFLAGS)
LDLIBS += $(SDL_LIBS)
endif
CORE_SRC = src/addressing.c src/bus.c src/cpu.c src/loader.c src/memory.c src/opcode.c
CORE_SRC = src/addressing.c src/apple1.c src/bus.c src/cpu.c src/loader.c src/memory.c src/nes.c src/opcode.c src/state.c
APP_SRC = $(CORE_SRC) src/frontend.c src/main.c
APP_OBJ = $(APP_SRC:src/%.c=build/%.o)
TARGET = bin/mos6502
SDL_TARGET = bin/mos6502-sdl
.PHONY: all clean test test-rom test-functional fetch-roms debug sanitize snake check-deps FORCE
.PHONY: all clean test test-rom test-functional test-decimal test-interrupt test-apple1 test-nestest test-vectors fetch-roms debug sanitize snake check-deps FORCE
all: $(TARGET)
bin/apple1: $(CORE_SRC) src/apple1_main.c
@mkdir -p bin
$(CC) $(CPPFLAGS) $(CFLAGS) $(CORE_SRC) src/apple1_main.c -o $@
bin/debugger: $(CORE_SRC) src/debugger_main.c
@mkdir -p bin
$(CC) $(CPPFLAGS) $(CFLAGS) $(CORE_SRC) src/debugger_main.c -o $@
bin/nes: $(CORE_SRC) src/nes_main.c
@mkdir -p bin
$(CC) -Iinclude $(CFLAGS) $(SDL_CFLAGS) $(CORE_SRC) src/nes_main.c $(SDL_LIBS) -o $@
bin/run_apple1: $(CORE_SRC) tests/run_apple1.c
@mkdir -p bin
$(CC) $(CPPFLAGS) $(CFLAGS) $(CORE_SRC) tests/run_apple1.c -o $@
test-apple1: tests/roms/wozmon.bin bin/run_apple1
./bin/run_apple1 $<
bin/run_nestest: $(CORE_SRC) tests/run_nestest.c
@mkdir -p bin
$(CC) $(CPPFLAGS) $(CFLAGS) $(CORE_SRC) tests/run_nestest.c -o $@
test-nestest: tests/roms/nestest.nes tests/roms/nestest.log bin/run_nestest
./bin/run_nestest tests/roms/nestest.nes tests/roms/nestest.log
bin/run_vectors: $(CORE_SRC) tests/run_vectors.c
@mkdir -p bin
$(CC) $(CPPFLAGS) $(CFLAGS) $(CORE_SRC) tests/run_vectors.c -o $@
test-vectors: bin/run_vectors
python3 tools/test_vectors.py --download
$(TARGET): $(APP_OBJ)
@mkdir -p bin
$(CC) $(CFLAGS) $(APP_OBJ) $(LDLIBS) -o $@
@@ -51,13 +84,59 @@ tests/roms/6502_functional_test.bin:
curl -L --fail -o $@ https://raw.githubusercontent.com/Klaus2m5/6502_65C02_functional_tests/master/bin_files/6502_functional_test.bin
@echo "fa12bfc761e6f9057e4cc01a665a7b800ff01ae91f598af1e39a1201d01953fd $@" | sha256sum -c -
fetch-roms: tests/roms/6502_functional_test.bin
tests/roms/6502_decimal_test.bin:
@mkdir -p tests/roms
curl -L --fail -o $@ https://raw.githubusercontent.com/JetSetIlly/Gopher2600/master/hardware/cpu/tests/klaus2m5/decimal_mode/6502_decimal_test.bin
@echo "03798ab778456cc350044fdbe28b4078278648892712b994cdbdda09018674e7 $@" | sha256sum -c -
tests/roms/6502_interrupt_test.bin:
@mkdir -p tests/roms build/as65
curl -L --fail -o build/as65/as65.zip https://raw.githubusercontent.com/Klaus2m5/6502_65C02_functional_tests/master/as65_142.zip
unzip -oq build/as65/as65.zip -d build/as65
curl -L --fail -o build/as65/6502_interrupt_test.a65 https://raw.githubusercontent.com/Klaus2m5/6502_65C02_functional_tests/master/6502_interrupt_test.a65
chmod +x build/as65/as65
cd build/as65 && ./as65 -pmnu 6502_interrupt_test.a65
cp build/as65/6502_interrupt_test.bin $@
@echo "2657b5ce08bb59e2de69363c9174c4d0f7f475bcf2ce844eb20cccfbe4374c72 $@" | sha256sum -c -
tests/roms/wozmon.bin:
@mkdir -p tests/roms build/wozmon
curl -L --fail -o build/wozmon/wozmon.s https://raw.githubusercontent.com/jefftranter/6502/master/asm/wozmon/wozmon.s
ca65 build/wozmon/wozmon.s -o build/wozmon/wozmon.o
ld65 -C /usr/share/cc65/cfg/none.cfg -o $@ build/wozmon/wozmon.o
@echo "e5af0d1c4057bd8e0ef5cb069c208ff7cc0984a7dff53b12c5cf119de8cb5c25 $@" | sha256sum -c -
tests/roms/nestest.nes:
@mkdir -p tests/roms
curl -L --fail -o $@ http://www.qmtpro.com/~nes/misc/nestest.nes
@echo "f67d55fd6b3cf0bad1cc85f1df0d739c65b53e79cecb7fea8f77ec0eadab0004 $@" | sha256sum -c -
tests/roms/nestest.log:
@mkdir -p tests/roms
curl -L --fail -o $@ http://www.qmtpro.com/~nes/misc/nestest.log
@echo "627c8e180b1a924dfa705c5dc6958fad7ab75a62de556173caf880ccc1337540 $@" | sha256sum -c -
fetch-roms: tests/roms/6502_functional_test.bin tests/roms/6502_decimal_test.bin tests/roms/6502_interrupt_test.bin tests/roms/wozmon.bin tests/roms/nestest.nes tests/roms/nestest.log
test-functional: tests/roms/6502_functional_test.bin bin/run_suite
./bin/run_suite $< 0 0x400 0x3469 100000000
bin/run_decimal: $(CORE_SRC) tests/run_decimal.c
@mkdir -p bin
$(CC) $(CPPFLAGS) $(CFLAGS) $(CORE_SRC) tests/run_decimal.c -o $@
test-decimal: tests/roms/6502_decimal_test.bin bin/run_decimal
./bin/run_decimal $<
bin/run_interrupt: $(CORE_SRC) tests/run_interrupt.c
@mkdir -p bin
$(CC) $(CPPFLAGS) $(CFLAGS) $(CORE_SRC) tests/run_interrupt.c -o $@
test-interrupt: tests/roms/6502_interrupt_test.bin bin/run_interrupt
./bin/run_interrupt $<
debug: CFLAGS = -O0 -g3 -std=c11 -Wall -Wextra -Wpedantic -Werror
debug: clean all test
debug: clean all bin/debugger bin/apple1 bin/nes test
sanitize: CFLAGS = -O1 -g3 -std=c11 -Wall -Wextra -Wpedantic -fsanitize=address,undefined
sanitize: export ASAN_OPTIONS = detect_leaks=0