dasm_x86.lua: Add support for RDTSCP instruction

This is a very useful instruction for self-benchmarking programs that want to read the CPU timestamp counter efficiently. See Intel whitepaper for details: http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/ia-32-ia-64-benchmark-code-execution-paper.pdf
snabbco · Feb 8, 2017 · 3e4c447 · 3e4c447
1 parent bd4ec1c
commit 3e4c447
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/dasm_x86.lua b/src/dasm_x86.lua
@@ -1230,6 +1230,7 @@ local map_op = {
   shrd_3 =	"mriqdw:0FACRmU|mrC/qq:0FADRm|mrC/dd:|mrC/ww:",
 
   rdtsc_0 =	"0F31", -- P1+
+  rdtscp_0 =    "0F01F9",-- P6+
   rdpmc_0 =	"0F33", -- P6+
   cpuid_0 =	"0FA2", -- P1+