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feat(cpu): retain Thumb instruction pipeline halfwords

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0xrsydn 2026-10-06 04:10:20 +07:00
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docs/hardware/bios.md
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@ -134,7 +134,7 @@ Missing BIOS images remain unmapped. The unused-memory ARM open-bus snapshot is
The Thumb rule follows documented BIOS bus lanes and a source comparison with NanoBoyAdvance.
See [Thumb BIOS prefetch research](../research/thumb-bios-prefetch.md) for evidence, emulator differences, and test scope.
This BIOS readback model remains separate from the CPU's ARM instruction buffer.
This BIOS readback model remains separate from the CPU's ARM/Thumb instruction buffer.
It does not model exact refill, BIOS data-access, or DMA bus history.
The boundary diagnostic policy and precise bus timing remain hardware-unverified.
Original regressions cover synthetic images, boot, exception returns, access widths, alignment, modes, and diagnostics.