From 936ff0ff76dca60fba3bb255d3ce573bdeda0322 Mon Sep 17 00:00:00 2001
From: MITSUNARI Shigeo <herumi@nifty.com>
Date: Wed, 22 May 2013 23:06:49 +0900
Subject: [PATCH] add rdrand

---
 gen/gen_code.cpp | 1 -
 test/make_nm.cpp | 5 +++++
 xbyak/xbyak.h    | 1 +
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gen/gen_code.cpp b/gen/gen_code.cpp
index 7007ad1..a8c3940 100644
--- a/gen/gen_code.cpp
+++ b/gen/gen_code.cpp
@@ -1583,5 +1583,4 @@ void put()
 int main()
 {
 	put();
-	return 0;
 }
diff --git a/test/make_nm.cpp b/test/make_nm.cpp
index 0f91460..c36216f 100644
--- a/test/make_nm.cpp
+++ b/test/make_nm.cpp
@@ -1893,6 +1893,10 @@ public:
 #endif
 		}
 	}
+	void putRdrand()
+	{
+		put("rdrand", REG16 | REG32e);
+	}
 	void put()
 	{
 #ifdef USE_AVX
@@ -1901,6 +1905,7 @@ public:
 		putGprR_R_RM();
 		putGprR_RM_R();
 		putGprR_RM();
+		putRdrand();
 #else
 		putAVX1();
 		putAVX2();
diff --git a/xbyak/xbyak.h b/xbyak/xbyak.h
index 3e573c2..a401e72 100644
--- a/xbyak/xbyak.h
+++ b/xbyak/xbyak.h
@@ -1689,6 +1689,7 @@ public:
 		db(0xF2);
 		opModRM(reg, op, op.isREG(), op.isMEM(), 0x0F, 0x38, 0xF0 | (op.isBit(8) ? 0 : 1));
 	}
+	void rdrand(const Reg& r) { if (r.isBit(8)) throw ERR_BAD_SIZE_OF_REGISTER; opModR(Reg(6, Operand::REG, r.getBit()), r, 0x0f, 0xc7); }
 	enum { NONE = 256 };
 	CodeGenerator(size_t maxSize = DEFAULT_MAX_CODE_SIZE, void *userPtr = 0, Allocator *allocator = 0)
 		: CodeArray(maxSize, userPtr, allocator)