Replace jpg image with svg one.

[libreriscv.git] / rv_major_opcode_1010011.mdwn

diff --git a/rv_major_opcode_1010011.mdwn b/rv_major_opcode_1010011.mdwn
index 5a5cb4fcbf3d5e399d6dca23c132b0f5ba5cbfaf..6383cf0c48f21b9b91aecbffef51b4da553e6847 100644 (file)
--- a/rv_major_opcode_1010011.mdwn
+++ b/rv_major_opcode_1010011.mdwn
@@ -1,3 +1,5 @@
+**OBSOLETE**, superceded by [[openpower/transcendentals]]
+
 # Summary FP Opcodes
 
 This page aids and assists in the development of FP proposals,
@@ -16,6 +18,7 @@ Publicly-known FP proposals:
 * Ztrig\* - see [[ztrans_proposal]]: Trigonometriics
   (FSIN, FCOS, FTAN, arc-variants, hypotenuse-variants)
 * Extension of formats to cover FP16 (RISC-V ISA Manual Table 11.3 "fmt field")
+ <https://groups.google.com/a/groups.riscv.org/d/msg/isa-dev/8knne5BtlvM>
 * HI-half FP MV - <https://github.com/riscv/riscv-isa-manual/pull/301>
   <https://groups.google.com/a/groups.riscv.org/forum/m/#!topic/isa-dev/kXgfFqgBv-c>
 * (Add new entries here: Zextname - Description and URL)
@@ -63,8 +66,8 @@ funct5  | SDHQ    | rs2    | rs1  | funct3 | rd    | opcode  | name           |
 01110   | xx      | rs2    | rs1  | rm     | rd    | 1010011 | **FATAN2PI.xx**|
 01111   | xx      | rs2    | rs1  | rm     | rd    | 1010011 | **FPOW.xx**    |
 10000   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | **FROOTN.xx**  |
-10001   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | ?              |
-10010   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | ?              |
+10001   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | **FPOWN.xx**   |
+10010   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | **FPOWR.xx**   |
 10011   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | ?              |
 10100   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | tb=10100       |
 10101   | xx      | rs2    | rs1  | yyy    | rd    | 1010011 | ?              |
@@ -262,13 +265,15 @@ Proposed for ZftransAdv - FPOW: "FP rs1 to the power of rs2"
 Proposed for ZftransAdv - FPROOTN: "FP rs1 to the power of (1/rs2)".
 rs1 is FP, rs2 is **integer**.
 
-## funct5 = 10000 - unused
+## funct5 = 10000 - **FPOWN**
 
-Brownfield encodings available.
+Proposed for ZftransAdv - FPOW: "FP rs1 to the power of rs2"
+rs1 is FP, rs2 is **integer**.
 
-## funct5 = 10001 - unused
+## funct5 = 10001 - **FPOW**
 
-Brownfield encodings available.
+Proposed for ZftransAdv - FPOWN: "FP rs1 to the power of rs2, rs1 +ve"
+rs1 and rs2 are FP, rs1 must be +ve.  Equivalent to "exp(rs2 * log(rs1))"
 
 ## funct5 = 10010 - unused