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Merge pull request #25 from ved-rivos/1215
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remove reference to Zaamo
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ved-rivos authored Dec 18, 2023
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9 changes: 3 additions & 6 deletions zabha.adoc
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[[chapter2]]
== Byte and Halfword Atomic Memory Operations (Zabha)

Zabha extends Zaamo and Zacas cite:[zacas] standard extensions by adding _byte_
(`width=0`) and _halfword_ (`width=1`) support in `width` field for atomic
memory operation instructions.

Zabha provides `AMO[ADD|AND|OR|XOR|SWAP|MIN[U]|MAX[U]].[B|H]`. If Zacas is also
implemented, Zabha further provides `AMOCAS.[B|H]`.
Zabha extension provides the `AMO[ADD|AND|OR|XOR|SWAP|MIN[U]|MAX[U]].[B|H]`
instructions. If Zacas cite:[zacas] extension is also implemented, Zabha
further provides the `AMOCAS.[B|H]` instructions.

[wavedrom, ,svg]
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