|RVV (18) |~190 (19) |~25000 (30) |Scalable (20) |yes |yes |no |yes |yes (21) |no |yes |no |no |no |
|Aurora SX(22) |~200 (23) |unknown (31) |Scalable (24) |yes |yes |no |yes |no |no |no |no |no |no |
-* (1): plus EXT001 24-bit prefixing. See [[sv/svp64]]
+* (1): plus EXT001 24-bit prefixing using 25% of EXT001 space. See [[sv/svp64]]
* (2): A 2-Dimensional Scalable Vector ISA **specifically designed for the Power ISA** with both Horizontal-First and Vertical-First Modes. See [[sv/vector_isa_comparison]]
* (3): on specific operations. See [[opcode_regs_deduped]] for full list. Key: 2P - Twin Predication, 1P - Single-Predicate
* (4): SVP64 provides a Vector concept on top of the **Scalar** GPR, FPR and CR Fields, extended to 128 entries.