HL.CASD

48-bit HL. **Group:** Atomic  |  Ch 14   AMO — Atomic Memory Operations  |  **Length:** 48  |  **Decode:** —

Assembly Syntax

• hl.casd<.{aq, rl, f, aqrl, aqf, rlf, aqrlf}> [SrcL], SrcR, SrcD, ->{t, u, Rd}

Encoding

Bitfield encoding diagram. MSB is on the left, LSB on the right.

Description

[48-bit HL.] Atomic memory read-modify-write operation.

Pseudocode (informative)

// Execute HL.CASD as defined by the Atomic semantics.

Encoding Notes

No additional encoding notes.

Full Catalog Forms

Assembly	Length	Decode
hl.casd<.{aq, rl, f, aqrl, aqf, rlf, aqrlf}> [SrcL], SrcR, SrcD, ->{t, u, Rd}	48	—

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