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craigjb.com
| | domipheus.com
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| | This is part of a series of posts detailing the steps and learning undertaken to design and implement a CPU in VHDL. Previous parts are available here, and I'd recommend they are read before continuing. Memory Operations We already have a small RAM which holds our instruction stream, but our TPU ISA defines memory read and write instructions, and we should get those instructions working. It's the last major functional implementation we need to complete. The fetch stage is simply a memory read with the PC...
| | jborza.com
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| | Continuing with the implementation of CHIP-8 in Verilog, I wanted to continue with the CPU module and get it to actually execute some instructions, so we'll build an instruction decoder, CPU states and a register file. As described in the previous part , we would like to: fetch instruction (2 bytes) from the memory into an 16-bit opcode register decode the instruction execute the instruction Other articles in the series:
| | akorotkov.github.io
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| | www.jmeiners.com
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| [AI summary] The provided text outlines the development of an LC-3 virtual machine (VM) in C, including the implementation of various instructions, memory operations, and input/output handling. It also discusses an advanced C++ approach using templates and bitwise flags to reduce code duplication and improve efficiency. The text covers topics like instruction decoding, memory addressing, flag handling, and platform-specific input buffering. Additionally, it references contributions from the community and mentions GitHub tags for organizing implementations in different languages.