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Foundry-5 is a free browser puzzle game that teaches you real RISC-V (RV32I) assembly

language — not a toy or pseudo-code, the actual 32-bit instruction set. You play by

writing bare-metal firmware to bring a dead automated factory back online, one system at

a time.

Each puzzle hands you a small machine — an LED, a sensor, a frame buffer, a motor — and

asks you to make it work by writing assembly. Your code runs on a built-in RISC-V CPU

emulator with a live view of every register, every byte of memory, and every instruction

as it executes. Watch the machine think, step by step.

What you'll learn

- Registers and how data moves through a CPU

- Memory: loads, stores, addressing, and buffers

- Loops, branches, and control flow in assembly

- The calling convention — functions, the stack, recursion

- Bit manipulation: masks, flags, packing and unpacking

- SIMD / vector instructions and real codec kernels

- How computer architecture actually fits together at the lowest level

More information<br>Updated 2 days agoPublished 8 days agoStatusReleasedPlatformsHTML5RatingRated 5.0 out of 5 stars

(1 total ratings)<br>AuthoratticarunGenreEducational, Puzzle, SimulationTagsassembly, coding, computer-science, learning, programming, Retro, risc-vAverage sessionAbout a half-hourLanguagesEnglishAI DisclosureAI Assisted, Code, Graphics, Sounds, Text

Download<br>DownloadRISCV2.zip 7.4 MB

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