Testing

CPU testing

The below listed ROMs are used to check if current CPU implementation is valid or not:

• http://www.qmtpro.com/~nes/misc/nestest.nes
  • passes all official opcode tests
  • Docs: http://www.qmtpro.com/~nes/misc/nestest.txt
• http://blargg.8bitalley.com/nes-tests/instr_test-v4.zip
  • Only official opcodes are supported.
  • Tested on single bank ROMs.
  • Stack overflow / underflow are treated as errors (comment out assert expressions in CPU6502::push() / CPU6502::pop() to pass "11-stack.nes")

PPU testing

PPU works somehow...