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6 votes
3 answers
1k views

Does the 8080 always handle unaligned access correctly?

The 8080 is referred to as an 8-bit CPU because it has an 8-bit data bus, but there are a number of cases where it must perform 16-bit memory access, for example when reading or writing a 16-bit ...
rwallace's user avatar
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24 votes
2 answers
3k views

Details of video memory access arbitration in Space Invaders

I am working on an FPGA implementation of the original Space Invaders arcade machine and I'd like to implement access arbitration between the CPU and the video system. I can imagine several ways of ...
Cactus's user avatar
  • 2,810