(no commit message)
[libreriscv.git] / simple_v_extension / opcodes.mdwn
index 851d63e893e416a776d96e102e0e53813f3470d8..efe05fbcf1a8a45f480efb6022bed298b00463e4 100644 (file)
@@ -1,26 +1,87 @@
-
-# RV32I    "RV32I Base Integer Instruction Set"
+# SimpleV Instruction Categorisation
+
+Based on information from Michael Clark's riscv-meta opcodes table
+(with thanks to Michael for creating it), this
+page categorises and identifies the type of parallelism that SimpleV
+indirectly adds on each RISC-V **standard** opcode.  These are note-form:
+see [[specification]] for full details.
+
+Note that the list is necessarily incomplete, as any custom or future
+extensions may also benefit from fitting one of the categories below.
+
+* **-** no change of behaviour takes place: operation remains
+  **completely scalar** as an **unmodified**, unaugmented standard RISC-V
+  opcode, even if it has registers.
+* **sv** - a standard contiguous (optionally predicated, optionally
+  indirected) multi-register operation where the predication register
+  to be used for the sequence of contiguous operations is taken from the
+  **destination** register's predication lookup entry.
+* **2v** - a standard contiguous (optionally twin-predicated, optionally
+  indirected) twin-register operation (distinct source and destination)
+  where either or both of source or destination may be redirected,
+  vectorised, or **independently** predicated.  This behaviour
+  covers the *entire* VMV, VSPLAT, VINSERT, VREDUCE, VSCATTER, VGATHER
+  paradigm.
+* **vld** - a standard contiguous (optionally twin-predicated, optionally
+  indirected) multi-register load operation where either or both of
+  destination register or load-from-address register may be redirected,
+  vectorised or **independently** predicated (LD.X style functionality).
+  (*Note: Vector "Unit Stride" and "Constant Stride" may be emulated by
+  pre-prepping a contiguous block of load-from-address registers with
+  the appropriate address offsets*)
+* **vst** - a matching multi-register store operation with orthogonal
+  functionality to  **vld**.
+* **VLU** - a "Unit Stride" variant of **vld** where instead of the
+  source-address register number being (optionally) incremented
+  (and redirected, and predicated) it is the **immediate offset**
+  that is incremented (by the element width of the **source** register)
+* **VSU** - a similarly "Unit Strided" variant of **vst**.
+* **VBR** - a standard branch operation (optionally predicated, optionally
+  indirected) multi-register operation where the (optional) predication for the
+  compare is taken from the destination register, and where (optionally)
+  if the results of the multi-comparison are to be recorded, the **source**
+  register's predication table entry is used as the means to specify
+  (in a bitfield format that is directly compatible for follow-up use as a
+  predicate) the register in which the comparison results are stored.
+  On completion of all compares, if the tests carried out succeeded
+  (de-predicated compares not being included in this assessment, evidently),
+  the branch operation is carried out.
+
+# RV32I/RV64I/RV128I    "RV32I/RV64I/RV128I Base Integer Instruction Set"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|lui      | rd imm20        | u     | rv32i rv64i rv128i | sv  |
 |auipc    | rd oimm20       | u+o  | rv32i rv64i rv128i | -  |
 |jal      | rd jimm20       | uj   | rv32i rv64i rv128i | -  |
 |jalr     | rd rs1 oimm12   | i+o  | rv32i rv64i rv128i | -  |
-|beq      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i |   |
-|bne      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i |   |
-|blt      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i |   |
-|bge      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i |   |
-|bltu     | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i |   |
-|bgeu     | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i |   |
-|lb       | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vls  |
-|lh       | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vls  |
-|lw       | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vls  |
-|lbu      | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vls  |
-|lhu      | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vls  |
-|sb       | rs1 rs2 simm12  | s    | rv32i rv64i rv128i | vls  |
-|sh       | rs1 rs2 simm12  | s    | rv32i rv64i rv128i | vls  |
-|sw       | rs1 rs2 simm12  | s    | rv32i rv64i rv128i | vls  |
+|fence    |                 | r·f | rv32i rv64i rv128i | -  |
+|fence.i  |                 | none | rv32i rv64i rv128i | -  |
+|         |                 |       |                   |  |
+|lui      | rd imm20        | u     | rv32i rv64i rv128i | sv  |
+|         |                 |       |                   |  |
+|beq      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i | VBR  |
+|bne      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i | VBR  |
+|blt      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i | VBR  |
+|bge      | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i | VBR  |
+|bltu     | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i | VBR  |
+|bgeu     | rs1 rs2 sbimm12 | sb   | rv32i rv64i rv128i | VBR  |
+|         |                 |       |                   |  |
+|lb       | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vld  |
+|lh       | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vld  |
+|lw       | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vld  |
+|lbu      | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vld  |
+|lhu      | rd rs1 oimm12   | i+l  | rv32i rv64i rv128i | vld  |
+|lwu      | rd rs1 oimm12   |  i+l        | rv64i rv128i | vld  |
+|ld       | rd rs1 oimm12   |  i+l        | rv64i rv128i | vld  |
+|ldu      | rd rs1 oimm12  |   i+l              | rv128i | vld  |
+|lq       | rd rs1 oimm12  |   i+l              | rv128i | vld  |
+|         |                 |       |                   |  |
+|sb       | rs1 rs2 simm12  | s    | rv32i rv64i rv128i | vst  |
+|sh       | rs1 rs2 simm12  | s    | rv32i rv64i rv128i | vst  |
+|sw       | rs1 rs2 simm12  | s    | rv32i rv64i rv128i | vst  |
+|sd       | rs1 rs2 simm12  |  s          | rv64i rv128i | vst  |
+|sq       | rs1 rs2 simm12 |   s                | rv128i | vst  |
+|         |                 |       |                   |  |
 |addi     | rd rs1 imm12    | i    | rv32i rv64i rv128i | sv  |
 |slti     | rd rs1 imm12    | i    | rv32i rv64i rv128i | sv  |
 |sltiu    | rd rs1 imm12    | i    | rv32i rv64i rv128i | sv  |
 |sra      | rd rs1 rs2      | r    | rv32i rv64i rv128i | sv  |
 |or       | rd rs1 rs2      | r    | rv32i rv64i rv128i | sv  |
 |and      | rd rs1 rs2      | r    | rv32i rv64i rv128i | sv  |
-|fence    |                 | r·f | rv32i rv64i rv128i | -  |
-|fence.i  |                 | none | rv32i rv64i rv128i | -  |
-
-# RV64I    "RV64I Base Integer Instruction Set (in addition to RV32I)"
-
-| (23..18) | (17..12) | (11..6) | (5...0) |  |
-| -------- | -------- | ------- | ------- |  |
-|lwu      | rd rs1 oimm12   |  i+l        | rv64i rv128i | vls  |
-|ld       | rd rs1 oimm12   |  i+l        | rv64i rv128i | vls  |
-|sd       | rs1 rs2 simm12  |  s          | rv64i rv128i | vls  |
-|slli     | rd rs1 shamt6   |  i·sh6             | rv64i |   |
-|srli     | rd rs1 shamt6   |  i·sh6             | rv64i |   |
-|srai     | rd rs1 shamt6   |  i·sh6             | rv64i |   |
-|addiw    | rd rs1 imm12    |  i          | rv64i rv128i |   |
-|slliw    | rd rs1 shamt5   |  i·sh5      | rv64i rv128i |   |
-|srliw    | rd rs1 shamt5   |  i·sh5      | rv64i rv128i |   |
-|sraiw    | rd rs1 shamt5   |  i·sh5      | rv64i rv128i |   |
-|addw     | rd rs1 rs2      |  r          | rv64i rv128i |   |
-|subw     | rd rs1 rs2      |  r          | rv64i rv128i |   |
-|sllw     | rd rs1 rs2      |  r          | rv64i rv128i |   |
-|srlw     | rd rs1 rs2      |  r          | rv64i rv128i |   |
-|sraw     | rd rs1 rs2      |  r          | rv64i rv128i |   |
-
-# RV128I   "RV128I Base Integer Instruction Set (in addition to RV64I)"
-
-| (23..18) | (17..12) | (11..6) | (5...0) |  |
-| -------- | -------- | ------- | ------- |  |
-|ldu      | rd rs1 oimm12  |   i+l              | rv128i | vls  |
-|lq       | rd rs1 oimm12  |   i+l              | rv128i | vls  |
-|sq       | rs1 rs2 simm12 |   s                | rv128i | vls  |
-|slli     | rd rs1 shamt7  |   i·sh7            | rv128i |   |
-|srli     | rd rs1 shamt7  |   i·sh7            | rv128i |   |
-|srai     | rd rs1 shamt7  |   i·sh7            | rv128i |   |
-|addid    | rd rs1 imm12   |   i                | rv128i |   |
-|sllid    | rd rs1 shamt6  |   i·sh6            | rv128i |   |
-|srlid    | rd rs1 shamt6  |   i·sh6            | rv128i |   |
-|sraid    | rd rs1 shamt6  |   i·sh6            | rv128i |   |
-|addd     | rd rs1 rs2     |   r                | rv128i |   |
-|subd     | rd rs1 rs2     |   r                | rv128i |   |
-|slld     | rd rs1 rs2     |   r                | rv128i |   |
-|srld     | rd rs1 rs2     |   r                | rv128i |   |
-|srad     | rd rs1 rs2     |   r                | rv128i |   |
+|slli     | rd rs1 shamt6   |  i·sh6             | rv64i | sv  |
+|srli     | rd rs1 shamt6   |  i·sh6             | rv64i | sv  |
+|srai     | rd rs1 shamt6   |  i·sh6             | rv64i | sv  |
+|addiw    | rd rs1 imm12    |  i          | rv64i rv128i | sv  |
+|slliw    | rd rs1 shamt5   |  i·sh5      | rv64i rv128i | sv  |
+|srliw    | rd rs1 shamt5   |  i·sh5      | rv64i rv128i | sv  |
+|sraiw    | rd rs1 shamt5   |  i·sh5      | rv64i rv128i | sv  |
+|addw     | rd rs1 rs2      |  r          | rv64i rv128i | sv  |
+|subw     | rd rs1 rs2      |  r          | rv64i rv128i | sv  |
+|sllw     | rd rs1 rs2      |  r          | rv64i rv128i | sv  |
+|srlw     | rd rs1 rs2      |  r          | rv64i rv128i | sv  |
+|sraw     | rd rs1 rs2      |  r          | rv64i rv128i | sv  |
+|slli     | rd rs1 shamt7  |   i·sh7            | rv128i | sv  |
+|srli     | rd rs1 shamt7  |   i·sh7            | rv128i | sv  |
+|srai     | rd rs1 shamt7  |   i·sh7            | rv128i | sv  |
+|addid    | rd rs1 imm12   |   i                | rv128i | sv  |
+|sllid    | rd rs1 shamt6  |   i·sh6            | rv128i | sv  |
+|srlid    | rd rs1 shamt6  |   i·sh6            | rv128i | sv  |
+|sraid    | rd rs1 shamt6  |   i·sh6            | rv128i | sv  |
+|addd     | rd rs1 rs2     |   r                | rv128i | sv  |
+|subd     | rd rs1 rs2     |   r                | rv128i | sv  |
+|slld     | rd rs1 rs2     |   r                | rv128i | sv  |
+|srld     | rd rs1 rs2     |   r                | rv128i | sv  |
+|srad     | rd rs1 rs2     |   r                | rv128i | sv  |
 
 # RV32M    "RV32M Standard Extension for Integer Multiply and Divide"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|mul      | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
-|mulh     | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
-|mulhsu   | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
-|mulhu    | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
-|div      | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
-|divu     | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
-|rem      | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
-|remu     | rd rs1 rs2   |     r    | rv32m rv64m rv128m |   |
+|mul      | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
+|mulh     | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
+|mulhsu   | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
+|mulhu    | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
+|div      | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
+|divu     | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
+|rem      | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
+|remu     | rd rs1 rs2   |     r    | rv32m rv64m rv128m | sv  |
 
 # RV64M    "RV64M Standard Extension for Integer Multiply and Divide (in addition to RV32M)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|mulw     | rd rs1 rs2   |     r          | rv64m rv128m |   |
-|divw     | rd rs1 rs2   |     r          | rv64m rv128m |   |
-|divuw    | rd rs1 rs2   |     r          | rv64m rv128m |   |
-|remw     | rd rs1 rs2   |     r          | rv64m rv128m |   |
-|remuw    | rd rs1 rs2   |     r          | rv64m rv128m |   |
+|mulw     | rd rs1 rs2   |     r          | rv64m rv128m | sv  |
+|divw     | rd rs1 rs2   |     r          | rv64m rv128m | sv  |
+|divuw    | rd rs1 rs2   |     r          | rv64m rv128m | sv  |
+|remw     | rd rs1 rs2   |     r          | rv64m rv128m | sv  |
+|remuw    | rd rs1 rs2   |     r          | rv64m rv128m | sv  |
 
 # RV128M   "RV128M Standard Extension for Integer Multiply and Divide (in addition to RV64M)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|muld     | rd rs1 rs2   |     r                | rv128m |   |
-|divd     | rd rs1 rs2   |     r                | rv128m |   |
-|divud    | rd rs1 rs2   |     r                | rv128m |   |
-|remd     | rd rs1 rs2   |     r                | rv128m |   |
-|remud    | rd rs1 rs2   |     r                | rv128m |   |
+|muld     | rd rs1 rs2   |     r                | rv128m | sv  |
+|divd     | rd rs1 rs2   |     r                | rv128m | sv  |
+|divud    | rd rs1 rs2   |     r                | rv128m | sv  |
+|remd     | rd rs1 rs2   |     r                | rv128m | sv  |
+|remud    | rd rs1 rs2   |     r                | rv128m | sv  |
 
 # RV32A    "RV32A Standard Extension for Atomic Instructions"
 
 | -------- | -------- | ------- | ------- |  |
 |lr.w     | rd rs1          | r·l | rv32a rv64a rv128a | -  |
 |sc.w     | rd rs1 rs2      | r·a | rv32a rv64a rv128a | -  |
-|amoswap.w| rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amoadd.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amoxor.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amoor.w  | rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amoand.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amomin.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amomax.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amominu.w| rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
-|amomaxu.w| rd rs1 rs2      | r·a | rv32a rv64a rv128a |   |
+|         |                 |       |                   |  |
+|amoswap.w| rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amoadd.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amoxor.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amoor.w  | rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amoand.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amomin.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amomax.w | rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amominu.w| rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
+|amomaxu.w| rd rs1 rs2      | r·a | rv32a rv64a rv128a | sv  |
 
 # RV64A    "RV64A Standard Extension for Atomic Instructions (in addition to RV32A)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|lr.d     | rd rs1          | r·l      | rv64a rv128a |   |
-|sc.d     | rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amoswap.d| rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amoadd.d | rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amoxor.d | rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amoor.d  | rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amoand.d | rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amomin.d | rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amomax.d | rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amominu.d| rd rs1 rs2      | r·a      | rv64a rv128a |   |
-|amomaxu.d| rd rs1 rs2      | r·a      | rv64a rv128a |   |
+|lr.d     | rd rs1          | r·l      | rv64a rv128a | - |
+|sc.d     | rd rs1 rs2      | r·a      | rv64a rv128a | - |
+|         |                 |       |                   |  |
+|amoswap.d| rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amoadd.d | rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amoxor.d | rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amoor.d  | rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amoand.d | rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amomin.d | rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amomax.d | rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amominu.d| rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
+|amomaxu.d| rd rs1 rs2      | r·a      | rv64a rv128a | sv  |
 
 # RV128A   "RV128A Standard Extension for Atomic Instructions (in addition to RV64A)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|lr.q     | rd rs1          | r·l | rv128a |   |
-|sc.q     | rd rs1 rs2      | r·a | rv128a |   |
-|amoswap.q| rd rs1 rs2      | r·a | rv128a |   |
-|amoadd.q | rd rs1 rs2      | r·a | rv128a |   |
-|amoxor.q | rd rs1 rs2      | r·a | rv128a |   |
-|amoor.q  | rd rs1 rs2      | r·a | rv128a |   |
-|amoand.q | rd rs1 rs2      | r·a | rv128a |   |
-|amomin.q | rd rs1 rs2      | r·a | rv128a |   |
-|amomax.q | rd rs1 rs2      | r·a | rv128a |   |
-|amominu.q| rd rs1 rs2      | r·a | rv128a |   |
-|amomaxu.q| rd rs1 rs2      | r·a | rv128a |   |
+|lr.q     | rd rs1          | r·l | rv128a | - |
+|sc.q     | rd rs1 rs2      | r·a | rv128a | - |
+|         |                 |       |                   |  |
+|amoswap.q| rd rs1 rs2      | r·a | rv128a | sv  |
+|amoadd.q | rd rs1 rs2      | r·a | rv128a | sv  |
+|amoxor.q | rd rs1 rs2      | r·a | rv128a | sv  |
+|amoor.q  | rd rs1 rs2      | r·a | rv128a | sv  |
+|amoand.q | rd rs1 rs2      | r·a | rv128a | sv  |
+|amomin.q | rd rs1 rs2      | r·a | rv128a | sv  |
+|amomax.q | rd rs1 rs2      | r·a | rv128a | sv  |
+|amominu.q| rd rs1 rs2      | r·a | rv128a | sv  |
+|amomaxu.q| rd rs1 rs2      | r·a | rv128a | sv  |
 
 # RV32S    "RV32S Standard Extension for Supervisor-level Instructions"
 
 |sfence.vm |         rs1             | r+sf    | rv32s rv64s rv128s | - |
 |sfence.vma| rs1 rs2                 | r+sfa   | rv32s rv64s rv128s | - |
 |wfi       |                         | none    | rv32s rv64s rv128s | - |
-|csrrw     | rd      rs1      csr12  | i·csr   | rv32s rv64s rv128s |   |
-|csrrs     | rd      rs1      csr12  | i·csr   | rv32s rv64s rv128s |   |
-|csrrc     | rd      rs1      csr12  | i·csr   | rv32s rv64s rv128s |   |
-|csrrwi    | rd      zimm     csr12  | i·csr+i | rv32s rv64s rv128s |   |
-|csrrsi    | rd      zimm     csr12  | i·csr+i | rv32s rv64s rv128s |   |
-|csrrci    | rd      zimm     csr12  | i·csr+i | rv32s rv64s rv128s |   |
+|         |                 |       |                   |  |
+|csrrw     | rd      rs1      csr12  | i·csr   | rv32s rv64s rv128s | ? |
+|csrrs     | rd      rs1      csr12  | i·csr   | rv32s rv64s rv128s | ? |
+|csrrc     | rd      rs1      csr12  | i·csr   | rv32s rv64s rv128s | ? |
+|csrrwi    | rd      zimm     csr12  | i·csr+i | rv32s rv64s rv128s | ? |
+|csrrsi    | rd      zimm     csr12  | i·csr+i | rv32s rv64s rv128s | ? |
+|csrrci    | rd      zimm     csr12  | i·csr+i | rv32s rv64s rv128s | ? |
 
 # RV32F    "RV32F Standard Extension for Single-Precision Floating-Point"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- | |
-|flw      | frd rs1           oimm12      | i+lf  | rv32f rv64f rv128f |   |
-|fsw      | rs1 frs2          simm12      | s+f   | rv32f rv64f rv128f |   |
-|fmadd.s  | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f |   |
-|fmsub.s  | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f |   |
-|fnmsub.s | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f |   |
-|fnmadd.s | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f |   |
-|fadd.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f |   |
-|fsub.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f |   |
-|fmul.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f |   |
-|fdiv.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f |   |
-|fsgnj.s  | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f |   |
-|fsgnjn.s | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f |   |
-|fsgnjx.s | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f |   |
-|fmin.s   | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f |   |
-|fmax.s   | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f |   |
-|fsqrt.s  | frd frs1                   rm | r·m+ff | rv32f rv64f rv128f |   |
-|fle.s    | rd frs1 frs2                  | r+rff | rv32f rv64f rv128f |   |
-|flt.s    | rd frs1 frs2                  | r+rff | rv32f rv64f rv128f |   |
-|feq.s    | rd frs1 frs2                  | r+rff | rv32f rv64f rv128f |   |
-|fcvt.w.s | rd frs1                    rm | r·m+rf | rv32f rv64f rv128f |   |
-|fcvt.wu.s| rd frs1                    rm | r·m+rf | rv32f rv64f rv128f |   |
-|fcvt.s.w | frd rs1                    rm | r·m+fr | rv32f rv64f rv128f |   |
-|fcvt.s.wu| frd rs1                    rm | r·m+fr | rv32f rv64f rv128f |   |
-|fmv.x.s  | rd frs1                       | r+rf  | rv32f rv64f rv128f |   |
-|fclass.s | rd frs1                       | r+rf  | rv32f rv64f rv128f |   |
-|fmv.s.x  | frd rs1                       | r+fr  | rv32f rv64f rv128f |   |
+|flw      | frd rs1           oimm12      | i+lf  | rv32f rv64f rv128f | vld  |
+|fsw      | rs1 frs2          simm12      | s+f   | rv32f rv64f rv128f | vld  |
+|         |                 |       |                   |  |
+|fmadd.s  | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f | sv  |
+|fmsub.s  | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f | sv  |
+|fnmsub.s | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f | sv  |
+|fnmadd.s | frd frs1 frs2 frs3         rm | r4·m  | rv32f rv64f rv128f | sv  |
+|fadd.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f | sv  |
+|fsub.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f | sv  |
+|fmul.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f | sv  |
+|fdiv.s   | frd frs1 frs2              rm | r·m+3f | rv32f rv64f rv128f | sv  |
+|fmin.s   | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f | sv  |
+|fmax.s   | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f | sv  |
+|fsqrt.s  | frd frs1                   rm | r·m+ff | rv32f rv64f rv128f | sv  |
+|fle.s    | rd frs1 frs2                  | r+rff | rv32f rv64f rv128f | sv  |
+|flt.s    | rd frs1 frs2                  | r+rff | rv32f rv64f rv128f | sv  |
+|feq.s    | rd frs1 frs2                  | r+rff | rv32f rv64f rv128f | sv  |
+|fclass.s | rd frs1                       | r+rf  | rv32f rv64f rv128f | sv  |
+|fsgnj.s  | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f | 2v  |
+|fsgnjn.s | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f | 2v  |
+|fsgnjx.s | frd frs1 frs2                 | r+3f  | rv32f rv64f rv128f | 2v  |
+|fcvt.w.s | rd frs1                    rm | r·m+rf | rv32f rv64f rv128f | 2v  |
+|fcvt.wu.s| rd frs1                    rm | r·m+rf | rv32f rv64f rv128f | 2v  |
+|fcvt.s.w | frd rs1                    rm | r·m+fr | rv32f rv64f rv128f | 2v  |
+|fcvt.s.wu| frd rs1                    rm | r·m+fr | rv32f rv64f rv128f | 2v  |
+|fmv.x.s  | rd frs1                       | r+rf  | rv32f rv64f rv128f | 2v  |
+|fmv.s.x  | frd rs1                       | r+fr  | rv32f rv64f rv128f | 2v  |
 
 # RV64F    "RV64F Standard Extension for Single-Precision Floating-Point (in addition to RV32F)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|fcvt.l.s | rd frs1  rm  |     r·m+rf      | rv64f rv128f |   |
-|fcvt.lu.s| rd frs1  rm  |     r·m+rf      | rv64f rv128f |   |
-|fcvt.s.l | frd rs1  rm  |     r·m+fr      | rv64f rv128f |   |
-|fcvt.s.lu| frd rs1  rm  |     r·m+fr      | rv64f rv128f |   |
+|fcvt.l.s | rd frs1  rm  |     r·m+rf      | rv64f rv128f | 2v  |
+|fcvt.lu.s| rd frs1  rm  |     r·m+rf      | rv64f rv128f | 2v  |
+|fcvt.s.l | frd rs1  rm  |     r·m+fr      | rv64f rv128f | 2v  |
+|fcvt.s.lu| frd rs1  rm  |     r·m+fr      | rv64f rv128f | 2v  |
 
 # RV32D    "RV32D Standard Extension for Double-Precision Floating-Point"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|fld      | frd rs1   oimm12      | i+lf  | rv32d rv64d rv128d |   |
-|fsd      | rs1 frs2  simm12      | s+f   | rv32d rv64d rv128d |   |
-|fmadd.d  | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d |   |
-|fmsub.d  | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d |   |
-|fnmsub.d | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d |   |
-|fnmadd.d | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d |   |
-|fadd.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d |   |
-|fsub.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d |   |
-|fmul.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d |   |
-|fdiv.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d |   |
-|fsgnj.d  | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d |   |
-|fsgnjn.d | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d |   |
-|fsgnjx.d | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d |   |
-|fmin.d   | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d |   |
-|fmax.d   | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d |   |
-|fcvt.s.d | frd frs1 rm           | r·m+ff | rv32d rv64d rv128d |   |
-|fcvt.d.s | frd frs1 rm           | r·m+ff | rv32d rv64d rv128d |   |
-|fsqrt.d  | frd frs1 rm           | r·m+ff | rv32d rv64d rv128d |   |
-|fle.d    | rd frs1 frs2          | r+rff | rv32d rv64d rv128d |   |
-|flt.d    | rd frs1 frs2          | r+rff | rv32d rv64d rv128d |   |
-|feq.d    | rd frs1 frs2          | r+rff | rv32d rv64d rv128d |   |
-|fcvt.w.d | rd frs1  rm           | r·m+rf | rv32d rv64d rv128d |   |
-|fcvt.wu.d| rd frs1  rm           | r·m+rf | rv32d rv64d rv128d |   |
-|fcvt.d.w | frd rs1  rm           | r·m+fr | rv32d rv64d rv128d |   |
-|fcvt.d.wu| frd rs1  rm           | r·m+fr | rv32d rv64d rv128d |   |
-|fclass.d | rd frs1               | r+rf  | rv32d rv64d rv128d |   |
+|fld      | frd rs1   oimm12      | i+lf  | rv32d rv64d rv128d | vld  |
+|fsd      | rs1 frs2  simm12      | s+f   | rv32d rv64d rv128d | vld  |
+|         |                 |       |                   |  |
+|fmadd.d  | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d | sv  |
+|fmsub.d  | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d | sv  |
+|fnmsub.d | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d | sv  |
+|fnmadd.d | frd frs1 frs2 frs3 rm | r4·m  | rv32d rv64d rv128d | sv  |
+|fadd.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d | sv  |
+|fsub.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d | sv  |
+|fmul.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d | sv  |
+|fdiv.d   | frd frs1 frs2      rm | r·m+3f | rv32d rv64d rv128d | sv  |
+|fmin.d   | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d | sv  |
+|fmax.d   | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d | sv  |
+|fsqrt.d  | frd frs1 rm           | r·m+ff | rv32d rv64d rv128d | sv  |
+|fle.d    | rd frs1 frs2          | r+rff | rv32d rv64d rv128d | sv  |
+|flt.d    | rd frs1 frs2          | r+rff | rv32d rv64d rv128d | sv  |
+|feq.d    | rd frs1 frs2          | r+rff | rv32d rv64d rv128d | sv  |
+|fclass.d | rd frs1               | r+rf  | rv32d rv64d rv128d | sv  |
+|         |                 |       |                   |  |
+|fsgnj.d  | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d | 2v  |
+|fsgnjn.d | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d | 2v  |
+|fsgnjx.d | frd frs1 frs2         | r+3f  | rv32d rv64d rv128d | 2v  |
+|fcvt.s.d | frd frs1 rm           | r·m+ff | rv32d rv64d rv128d | 2v  |
+|fcvt.d.s | frd frs1 rm           | r·m+ff | rv32d rv64d rv128d | 2v  |
+|fcvt.w.d | rd frs1  rm           | r·m+rf | rv32d rv64d rv128d | 2v  |
+|fcvt.wu.d| rd frs1  rm           | r·m+rf | rv32d rv64d rv128d | 2v  |
+|fcvt.d.w | frd rs1  rm           | r·m+fr | rv32d rv64d rv128d | 2v  |
+|fcvt.d.wu| frd rs1  rm           | r·m+fr | rv32d rv64d rv128d | 2v  |
 
 # RV64D    "RV64D Standard Extension for Double-Precision Floating-Point (in addition to RV32D)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|fcvt.l.d | rd frs1  rm      | r·m+rf      | rv64d rv128d |   |
-|fcvt.lu.d| rd frs1  rm      | r·m+rf      | rv64d rv128d |   |
-|fmv.x.d  | rd frs1          | r+rf        | rv64d rv128d |   |
-|fcvt.d.l | frd rs1  rm      | r·m+fr      | rv64d rv128d |   |
-|fcvt.d.lu| frd rs1  rm      | r·m+fr      | rv64d rv128d |   |
-|fmv.d.x  | frd rs1          | r+fr        | rv64d rv128d |   |
+|fcvt.l.d | rd frs1  rm      | r·m+rf      | rv64d rv128d | 2v  |
+|fcvt.lu.d| rd frs1  rm      | r·m+rf      | rv64d rv128d | 2v  |
+|fmv.x.d  | rd frs1          | r+rf        | rv64d rv128d | 2v  |
+|fcvt.d.l | frd rs1  rm      | r·m+fr      | rv64d rv128d | 2v  |
+|fcvt.d.lu| frd rs1  rm      | r·m+fr      | rv64d rv128d | 2v  |
+|fmv.d.x  | frd rs1          | r+fr        | rv64d rv128d | 2v  |
 
 # RV32Q    "RV32Q Standard Extension for Quad-Precision Floating-Point"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|flq      | frd rs1       oimm12  | i+lf   | rv32q rv64q rv128q |   |
-|fsq      | rs1 frs2      simm12  | s+f    | rv32q rv64q rv128q |   |
-|fmadd.q  | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q |   |
-|fmsub.q  | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q |   |
-|fnmsub.q | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q |   |
-|fnmadd.q | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q |   |
-|fadd.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q |   |
-|fsub.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q |   |
-|fmul.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q |   |
-|fdiv.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q |   |
-|fsgnj.q  | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q |   |
-|fsgnjn.q | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q |   |
-|fsgnjx.q | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q |   |
-|fmin.q   | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q |   |
-|fmax.q   | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q |   |
-|fcvt.s.q | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q |   |
-|fcvt.q.s | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q |   |
-|fcvt.d.q | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q |   |
-|fcvt.q.d | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q |   |
-|fsqrt.q  | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q |   |
-|fle.q    | rd frs1 frs2          | r+rff  | rv32q rv64q rv128q |   |
-|flt.q    | rd frs1 frs2          | r+rff  | rv32q rv64q rv128q |   |
-|feq.q    | rd frs1 frs2          | r+rff  | rv32q rv64q rv128q |   |
-|fcvt.w.q | rd frs1  rm           | r·m+rf | rv32q rv64q rv128q |   |
-|fcvt.wu.q| rd frs1  rm           | r·m+rf | rv32q rv64q rv128q |   |
-|fcvt.q.w | frd rs1  rm           | r·m+fr | rv32q rv64q rv128q |   |
-|fcvt.q.wu| frd rs1  rm           | r·m+fr | rv32q rv64q rv128q |   |
-|fclass.q | rd frs1               | r+rf   | rv32q rv64q rv128q |   |
+|flq      | frd rs1       oimm12  | i+lf   | rv32q rv64q rv128q | vld  |
+|         |                 |       |                   |  |
+|fsq      | rs1 frs2      simm12  | s+f    | rv32q rv64q rv128q | vst  |
+|         |                 |       |                   |  |
+|fmadd.q  | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q | sv  |
+|fmsub.q  | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q | sv  |
+|fnmsub.q | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q | sv  |
+|fnmadd.q | frd frs1 frs2 frs3 rm | r4·m   | rv32q rv64q rv128q | sv  |
+|fadd.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q | sv  |
+|fsub.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q | sv  |
+|fmul.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q | sv  |
+|fdiv.q   | frd frs1 frs2     rm  | r·m+3f | rv32q rv64q rv128q | sv  |
+|fmin.q   | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q | sv  |
+|fmax.q   | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q | sv  |
+|fsqrt.q  | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q | sv  |
+|fle.q    | rd frs1 frs2          | r+rff  | rv32q rv64q rv128q | sv  |
+|flt.q    | rd frs1 frs2          | r+rff  | rv32q rv64q rv128q | sv  |
+|feq.q    | rd frs1 frs2          | r+rff  | rv32q rv64q rv128q | sv  |
+|fclass.q | rd frs1               | r+rf   | rv32q rv64q rv128q | sv  |
+|         |                 |       |                   |  |
+|fsgnj.q  | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q | 2v  |
+|fsgnjn.q | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q | 2v  |
+|fsgnjx.q | frd frs1 frs2         | r+3f   | rv32q rv64q rv128q | 2v  |
+|fcvt.s.q | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q | 2v  |
+|fcvt.q.s | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q | 2v  |
+|fcvt.d.q | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q | 2v  |
+|fcvt.q.d | frd frs1 rm           | r·m+ff | rv32q rv64q rv128q | 2v  |
+|fcvt.w.q | rd frs1  rm           | r·m+rf | rv32q rv64q rv128q | 2v  |
+|fcvt.wu.q| rd frs1  rm           | r·m+rf | rv32q rv64q rv128q | 2v  |
+|fcvt.q.w | frd rs1  rm           | r·m+fr | rv32q rv64q rv128q | 2v  |
+|fcvt.q.wu| frd rs1  rm           | r·m+fr | rv32q rv64q rv128q | 2v  |
 
 # RV64Q    "RV64Q Standard Extension for Quad-Precision Floating-Point (in addition to RV32Q)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|fcvt.l.q | rd frs1  rm       | r·m+rf        | rv64q rv128q |   |
-|fcvt.lu.q| rd frs1  rm       | r·m+rf        | rv64q rv128q |   |
-|fcvt.q.l | frd rs1  rm       | r·m+fr        | rv64q rv128q |   |
-|fcvt.q.lu| frd rs1  rm       | r·m+fr        | rv64q rv128q |   |
+|fcvt.l.q | rd frs1  rm       | r·m+rf        | rv64q rv128q | 2v  |
+|fcvt.lu.q| rd frs1  rm       | r·m+rf        | rv64q rv128q | 2v  |
+|fcvt.q.l | frd rs1  rm       | r·m+fr        | rv64q rv128q | 2v  |
+|fcvt.q.lu| frd rs1  rm       | r·m+fr        | rv64q rv128q | 2v  |
 
 # RV128Q   "RV128Q Standard Extension for Quadruple-Precision Floating-Point (in addition to RV64Q)"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
-|fmv.x.q  | rd frs1  | r+rf          | rv64q rv128q |   |
-|fmv.q.x  | frd rs1  | r+fr          | rv64q rv128q |   |
+|fmv.x.q  | rd frs1  | r+rf          | rv64q rv128q | 2v  |
+|fmv.q.x  | frd rs1  | r+fr          | rv64q rv128q | 2v  |
 
-# RV32C    "RV32C Standard Extension for Compressed Instructions"
+# RV32C/RV64C/RV128C    "RV32C/RV64C/RV128C Standard Extension for Compressed Instructions"
 
 | (23..18) | (17..12) | (11..6) | (5...0) |  |
 | -------- | -------- | ------- | ------- |  |
 |c.addi4spn|crdq       cimm4spn  | ciw·4spn  | rv32c rv64c | - |
-|c.fld    | cfrdq crs1q   cimmd  | cl·ld+f   | rv32c rv64c | vls  |
-|c.lw     | crdq  crs1q   cimmw  | cl·lw     | rv32c rv64c | vls  |
-|c.flw    | cfrdq crs1q   cimmw  | cl·lw+f   | rv32c       | vls  |
-|c.fsd    | crs1q cfrs2q  cimmd  | cs·sd+f   | rv32c rv64c | vls  |
-|c.sw     | crs1q crs2q   cimmw  | cs·sw     | rv32c rv64c | vls  |
-|c.fsw    | crs1q cfrs2q  cimmw  | cs·sw+f   | rv32c       | vls  |
-|c.nop    |                      | ci·none   | rv32c rv64c |   |
-|c.addi   | crs1rd      cnzimmi  | ci        | rv32c rv64c |   |
+|c.nop    |                      | ci·none   | rv32c rv64c | - |
 |c.jal    |               cimmj  | cj·jal    | rv32c       | - |
-|c.li     | crs1rd        cimmi  | ci·li     | rv32c rv64c | sv  |
-|c.addi16sp|crs1rd     cimm16sp  | ci·16sp   | rv32c rv64c | TODO: special-case in spike-sv (disable SV mode) |
-|c.lui    | crd          cimmui  | ci·lui    | rv32c rv64c | sv |
-|c.srli   | crs1rdq     cimmsh5  | cb·sh5    | rv32c       |   |
-|c.srai   | crs1rdq     cimmsh5  | cb·sh5    | rv32c       |   |
-|c.andi   | crs1rdq     cnzimmi  | cb·imm    | rv32c rv64c |   |
-|c.sub    | crs1rdq crs2q        | cs        | rv32c rv64c |   |
-|c.xor    | crs1rdq crs2q        | cs        | rv32c rv64c |   |
-|c.or     | crs1rdq crs2q        | cs        | rv32c rv64c |   |
-|c.and    | crs1rdq crs2q        | cs        | rv32c rv64c |   |
-|c.subw   | crs1rdq crs2q        | cs        | rv32c rv64c |   |
-|c.addw   | crs1rdq crs2q        | cs        | rv32c rv64c |   |
 |c.j      |               cimmj  | cj        | rv32c rv64c | - |
-|c.beqz   | crs1q         cimmb  | cb        | rv32c rv64c |   |
-|c.bnez   | crs1q         cimmb  | cb        | rv32c rv64c |   |
-|c.slli   | crs1rd      cimmsh5  | ci·sh5    | rv32c       |   |
-|c.fldsp  | cfrd       cimmldsp  | ci·ldsp+f | rv32c rv64c | VU  |
-|c.lwsp   | crd        cimmlwsp  | ci·lwsp   | rv32c rv64c | VU  |
-|c.flwsp  | cfrd       cimmlwsp  | ci·lwsp+f | rv32c       | VU  |
 |c.jr     | crd0 crs1            | cr·jr     | rv32c rv64c | - |
-|c.mv     | crd crs2             | cr·mv     | rv32c rv64c | 2v  |
 |c.ebreak |                      | ci·none   | rv32c rv64c | - |
 |c.jalr   | crd0 crs1            | cr·jalr   | rv32c rv64c | - |
-|c.add    | crs1rd crs2          | cr        | rv32c rv64c |   |
-|c.fsdsp  | cfrs2      cimmsdsp  | css·sdsp+f | rv32c rv64c | VU  |
-|c.swsp   | crs2       cimmswsp  | css·swsp  | rv32c rv64c | VU  |
-|c.fswsp  | cfrs2      cimmswsp  | css·swsp+f | rv32c | VU  |
-
-# RV64C    "RV64C Standard Extension for Compressed Instructions (in addition to RV32C)"
-
-| (23..18) | (17..12) | (11..6) | (5...0) |  |
-| -------- | -------- | ------- | ------- |  |
-|c.ld     | crdq  crs1q   cimmd  | cl·ld           | rv64c | vls  |
-|c.sd     | crs1q crs2q   cimmd  | cs·sd           | rv64c | vls  |
-|c.addiw  | crs1rd        cimmi  | ci              | rv64c |   |
-|c.srli   | crs1rdq     cimmsh6  | cb·sh6          | rv64c |   |
-|c.srai   | crs1rdq     cimmsh6  | cb·sh6          | rv64c |   |
-|c.slli   | crs1rd      cimmsh6  | ci·sh6          | rv64c |   |
-|c.ldsp   | crd        cimmldsp  | ci·ldsp         | rv64c | VU  |
-|c.sdsp   | crs2       cimmsdsp  | css·sdsp        | rv64c | VU  |
-
-# RV128C   "RV128C Standard Extension for Compressed Instructions (in addition to RV64C)"
-
-| (23..18) | (17..12) | (11..6) | (5...0) |  |
-| -------- | -------- | ------- | ------- |  |
-|c.lq     | crdq crs1q    cimmq  | cl·lq           | rv128c | vls  |
-|c.sq     | crs1q crs2q   cimmq  | cs·sq           | rv128c | vls  |
-|c.lqsp   | crd        cimmlqsp  | ci·lqsp         | rv128c | VU  |
-|c.sqsp   | crs2       cimmsqsp  | css·sqsp        | rv128c | VU  |
+|         |                 |       |                   |  |
+|c.mv     | crd crs2             | cr·mv     | rv32c rv64c | 2v  |
+|         |                 |       |                   |  |
+|c.fld    | cfrdq crs1q   cimmd  | cl·ld+f   | rv32c rv64c | vld  |
+|c.lw     | crdq  crs1q   cimmw  | cl·lw     | rv32c rv64c | vld  |
+|c.flw    | cfrdq crs1q   cimmw  | cl·lw+f   | rv32c       | vld  |
+|c.ld     | crdq  crs1q   cimmd  | cl·ld           | rv64c | vld  |
+|c.lq     | crdq crs1q    cimmq  | cl·lq           | rv128c | vld  |
+|         |                 |       |                   |  |
+|c.fsd    | crs1q cfrs2q  cimmd  | cs·sd+f   | rv32c rv64c | vst  |
+|c.sw     | crs1q crs2q   cimmw  | cs·sw     | rv32c rv64c | vst  |
+|c.fsw    | crs1q cfrs2q  cimmw  | cs·sw+f   | rv32c       | vst  |
+|c.sd     | crs1q crs2q   cimmd  | cs·sd           | rv64c | vst  |
+|c.sq     | crs1q crs2q   cimmq  | cs·sq           | rv128c | vst  |
+|         |                 |       |                   |  |
+|c.addi16sp|crs1rd     cimm16sp  | ci·16sp   | rv32c rv64c | TODO: special-case in spike-sv (disable SV mode) |
+|c.addi   | crs1rd      cnzimmi  | ci        | rv32c rv64c | sv  |
+|c.li     | crs1rd        cimmi  | ci·li     | rv32c rv64c | sv  |
+|c.lui    | crd          cimmui  | ci·lui    | rv32c rv64c | sv |
+|c.srli   | crs1rdq     cimmsh5  | cb·sh5    | rv32c       | sv  |
+|c.srai   | crs1rdq     cimmsh5  | cb·sh5    | rv32c       | sv  |
+|c.slli   | crs1rd      cimmsh5  | ci·sh5    | rv32c       | sv  |
+|c.andi   | crs1rdq     cnzimmi  | cb·imm    | rv32c rv64c | sv  |
+|c.sub    | crs1rdq crs2q        | cs        | rv32c rv64c | sv  |
+|c.xor    | crs1rdq crs2q        | cs        | rv32c rv64c | sv  |
+|c.or     | crs1rdq crs2q        | cs        | rv32c rv64c | sv  |
+|c.and    | crs1rdq crs2q        | cs        | rv32c rv64c | sv  |
+|c.subw   | crs1rdq crs2q        | cs        | rv32c rv64c | sv  |
+|c.addw   | crs1rdq crs2q        | cs        | rv32c rv64c | sv  |
+|c.add    | crs1rd crs2          | cr        | rv32c rv64c | sv  |
+|c.addiw  | crs1rd        cimmi  | ci              | rv64c | sv  |
+|c.srli   | crs1rdq     cimmsh6  | cb·sh6          | rv64c | sv  |
+|c.srai   | crs1rdq     cimmsh6  | cb·sh6          | rv64c | sv  |
+|c.slli   | crs1rd      cimmsh6  | ci·sh6          | rv64c | sv  |
+|         |                 |       |                   |  |
+|c.beqz   | crs1q         cimmb  | cb        | rv32c rv64c | VBR  |
+|c.bnez   | crs1q         cimmb  | cb        | rv32c rv64c | VBR  |
+|         |                 |       |                   |  |
+|c.fldsp  | cfrd       cimmldsp  | ci·ldsp+f | rv32c rv64c | VLU  |
+|c.lwsp   | crd        cimmlwsp  | ci·lwsp   | rv32c rv64c | VLU  |
+|c.flwsp  | cfrd       cimmlwsp  | ci·lwsp+f | rv32c       | VLU  |
+|c.ldsp   | crd        cimmldsp  | ci·ldsp         | rv64c | VLU  |
+|c.lqsp   | crd        cimmlqsp  | ci·lqsp         | rv128c | VLU  |
+|         |                 |       |                   |  |
+|c.fsdsp  | cfrs2      cimmsdsp  | css·sdsp+f | rv32c rv64c | VSU  |
+|c.swsp   | crs2       cimmswsp  | css·swsp  | rv32c rv64c | VSU  |
+|c.fswsp  | cfrs2      cimmswsp  | css·swsp+f | rv32c      | VSU  |
+|c.sdsp   | crs2       cimmsdsp  | css·sdsp        | rv64c | VSU  |
+|c.sqsp   | crs2       cimmsqsp  | css·sqsp        | rv128c | VSU  |