1 files changed, 19 insertions, 0 deletions

diff --git a/dynasm/dasm_x86.lua b/dynasm/dasm_x86.lua
index 4c031e2c..c1d267a5 100644
--- a/dynasm/dasm_x86.lua
+++ b/dynasm/dasm_x86.lua
@@ -955,6 +955,7 @@ end
 --   "u"       Use VEX encoding, vvvv unused.
 --   "v"/"V"   Use VEX encoding, vvvv from 1st/2nd operand (the operand is
 --             removed from the list used by future characters).
+--   "w"       Use VEX encoding, vvvv from 3rd operand.
 --   "L"       Force VEX.L
 --
 -- All of the following characters force a flush of the opcode:
@@ -1677,6 +1678,24 @@ local map_op = {
   -- Intel ADX
   adcx_2 =      "rmqd:660F38F6rM",
   adox_2 =      "rmqd:F30F38F6rM",
+
+  -- BMI1
+  andn_3 =      "rrmqd:0F38VF2rM",
+  bextr_3 =     "rmrqd:0F38wF7rM",
+  blsi_2 =      "rmqd:0F38vF33m",
+  blsmsk_2 =    "rmqd:0F38vF32m",
+  blsr_2 =      "rmqd:0F38vF31m",
+  tzcnt_2 =     "rmqdw:F30FBCrM",
+
+  -- BMI2
+  bzhi_3 =      "rmrqd:0F38wF5rM",
+  mulx_3 =      "rrmqd:F20F38VF6rM",
+  pdep_3 =      "rrmqd:F20F38VF5rM",
+  pext_3 =      "rrmqd:F30F38VF5rM",
+  rorx_3 =      "rmSqd:F20F3AuF0rMS",
+  sarx_3 =      "rmrqd:F30F38wF7rM",
+  shrx_3 =      "rmrqd:F20F38wF7rM",
+  shlx_3 =      "rmrqd:660F38wF7rM",
 }
 
 ------------------------------------------------------------------------------