diff --git a/gen/gen_code.cpp b/gen/gen_code.cpp
index 68cb6b7..4251448 100644
--- a/gen/gen_code.cpp
+++ b/gen/gen_code.cpp
@@ -1739,7 +1739,7 @@ void put()
 		};
 		for (size_t i = 0; i < NUM_OF_ARRAY(tbl); i++) {
 			const Tbl& p = tbl[i];
-			printf("void %s(const Reg& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, %s, 0x%x); }\n", p.name, type2String(p.type).c_str(), p.code);
+			printf("void %s(const Reg32e& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, %s, 0x%x); }\n", p.name, type2String(p.type).c_str(), p.code);
 		}
 	}
 	// gpr(reg, r/m, reg)
@@ -1749,7 +1749,7 @@ void put()
 			uint64_t type;
 			uint8_t code;
 		} tbl[] = {
-			{ "bextr", T_0F38, 0xF7 },
+			{ "bextr", T_0F38 | T_VEX | T_NF, 0xF7 },
 			{ "bzhi", T_0F38, 0xF5 },
 			{ "sarx", T_0F38 | T_F3, 0xF7 },
 			{ "shlx", T_0F38 | T_66, 0xF7 },
diff --git a/xbyak/xbyak.h b/xbyak/xbyak.h
index ef69afd..16fe01e 100644
--- a/xbyak/xbyak.h
+++ b/xbyak/xbyak.h
@@ -853,6 +853,7 @@ struct Fpu : public Reg {
 
 struct Reg32e : public Reg {
 	explicit XBYAK_CONSTEXPR Reg32e(int idx, int bit) : Reg(idx, Operand::REG, bit) {}
+	Reg32e operator|(const ApxFlagNF&) const { Reg32e r(*this); r.setNF(); return r; }
 };
 struct Reg32 : public Reg32e {
 	explicit XBYAK_CONSTEXPR Reg32(int idx = 0) : Reg32e(idx, 32) {}
diff --git a/xbyak/xbyak_mnemonic.h b/xbyak/xbyak_mnemonic.h
index c125ab0..3c082ef 100644
--- a/xbyak/xbyak_mnemonic.h
+++ b/xbyak/xbyak_mnemonic.h
@@ -29,14 +29,14 @@ void and_(const Operand& op, uint32_t imm) { opOI(op, imm, 0x20, 4); }
 void and_(const Operand& op1, const Operand& op2) { opRO_MR(op1, op2, 0x20); }
 void and_(const Reg& d, const Operand& op, uint32_t imm) { opROI(d, op, imm, T_NF|T_CODE1_IF1, 4); }
 void and_(const Reg& d, const Operand& op1, const Operand& op2) { opROO(d, op1, op2, T_NF|T_CODE1_IF1, 0x20); }
-void andn(const Reg& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_0F38|T_NF, 0xf2); }
+void andn(const Reg32e& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_0F38|T_NF, 0xf2); }
 void andnpd(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F | T_66, 0x55, isXMM_XMMorMEM); }
 void andnps(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F, 0x55, isXMM_XMMorMEM); }
 void andpd(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F | T_66, 0x54, isXMM_XMMorMEM); }
 void andps(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F, 0x54, isXMM_XMMorMEM); }
 void aor(const Address& addr, const Reg32e &reg) { opMR(addr, reg, T_0F38 | T_F2, 0x0FC); }
 void axor(const Address& addr, const Reg32e &reg) { opMR(addr, reg, T_0F38 | T_F3, 0x0FC); }
-void bextr(const Reg32e& r1, const Operand& op, const Reg32e& r2) { opRRO(r1, r2, op, T_0F38, 0xf7); }
+void bextr(const Reg32e& r1, const Operand& op, const Reg32e& r2) { opRRO(r1, r2, op, T_VEX|T_0F38|T_NF, 0xf7); }
 void blendpd(const Xmm& xmm, const Operand& op, int imm) { opSSE(xmm, op, T_66 | T_0F3A, 0x0D, isXMM_XMMorMEM, static_cast<uint8_t>(imm)); }
 void blendps(const Xmm& xmm, const Operand& op, int imm) { opSSE(xmm, op, T_66 | T_0F3A, 0x0C, isXMM_XMMorMEM, static_cast<uint8_t>(imm)); }
 void blendvpd(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_66|T_0F38, 0x15, isXMM_XMMorMEM, NONE); }
@@ -560,7 +560,7 @@ void mulpd(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F | T_66, 0x59
 void mulps(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F, 0x59, isXMM_XMMorMEM); }
 void mulsd(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F | T_F2, 0x59, isXMM_XMMorMEM); }
 void mulss(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_0F | T_F3, 0x59, isXMM_XMMorMEM); }
-void mulx(const Reg& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_F2|T_0F38, 0xf6); }
+void mulx(const Reg32e& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_F2|T_0F38, 0xf6); }
 void mwait() { db(0x0F); db(0x01); db(0xC9); }
 void mwaitx() { db(0x0F); db(0x01); db(0xFB); }
 void neg(const Operand& op) { opRext(op, 0, 3, 0, 0xF6); }
@@ -616,8 +616,8 @@ void pcmpgtq(const Xmm& xmm, const Operand& op) { opSSE(xmm, op, T_66 | T_0F38,
 void pcmpgtw(const Mmx& mmx, const Operand& op) { opMMX(mmx, op, 0x65); }
 void pcmpistri(const Xmm& xmm, const Operand& op, uint8_t imm) { opSSE(xmm, op, T_66|T_0F3A, 0x63, isXMM_XMMorMEM, imm); }
 void pcmpistrm(const Xmm& xmm, const Operand& op, uint8_t imm) { opSSE(xmm, op, T_66|T_0F3A, 0x62, isXMM_XMMorMEM, imm); }
-void pdep(const Reg& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_F2|T_0F38, 0xf5); }
-void pext(const Reg& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_F3|T_0F38, 0xf5); }
+void pdep(const Reg32e& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_F2|T_0F38, 0xf5); }
+void pext(const Reg32e& r1, const Reg32e& r2, const Operand& op) { opRRO(r1, r2, op, T_VEX|T_F3|T_0F38, 0xf5); }
 void pextrb(const Operand& op, const Xmm& xmm, uint8_t imm) { opExt(op, xmm, 0x14, imm); }
 void pextrd(const Operand& op, const Xmm& xmm, uint8_t imm) { opExt(op, xmm, 0x16, imm); }
 void pextrw(const Operand& op, const Mmx& xmm, uint8_t imm) { opExt(op, xmm, 0x15, imm, true); }