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spec: DMA memcpy accelerator - #931

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nicole-graus wants to merge 4 commits into
spec/mainfrom
spec/dma-memcpy
Open

spec: DMA memcpy accelerator#931
nicole-graus wants to merge 4 commits into
spec/mainfrom
spec/dma-memcpy

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@nicole-graus

@nicole-graus nicole-graus commented Aug 11, 2026

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Specifies the DMA memcpy table added by #874. It has one row per eight copied bytes (one on the tail), rows chained over a new DMA_NEXT bus, ECALL number -3. Adds the ADDNW template (ADD without wraparound) used for the address updates, and lists -3 in the ECALL overview.

One deliberate deviation from #874's Rust: 31 columns rather than 32, because the spec models timestamp as a Word, as every other chapter does.

@nicole-graus
nicole-graus changed the base branch from main to spec/main August 11, 2026 20:04
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