From 7117e80702d70ac635e50a05deb85f672bd3a464 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Mon, 21 Apr 2008 22:44:55 -0400
Subject: [PATCH] Initial support for YMM (AVX) registers

Add support for ymm0..15 registers, and the "ymmreg" qualifier.
No support yet for "yword" or "dy".
---
 nasm.h   | 5 ++++-
 regs.dat | 3 +++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/nasm.h b/nasm.h
index 2591b1ce..0f8d51fc 100644
--- a/nasm.h
+++ b/nasm.h
@@ -440,8 +440,9 @@ enum {
  * 24: FPUREG
  * 25: RM_MMX (MMXREG)
  * 26: RM_XMM (XMMREG)
+ * 27: RM_YMM (YMMREG)
  *
- * Bits 27, 31 are currently unallocated.
+ * Bit 31 is currently unallocated.
  *
  * 30: SAME_AS
  * Special flag only used in instruction patterns; means this operand
@@ -496,6 +497,8 @@ typedef uint32_t opflags_t;
 #define RM_XMM		0x04008000U   /* XMM (SSE) operand */
 #define XMMREG		0x04009000U   /* XMM (SSE) register */
 #define XMM0		0x04019000U   /* XMM register zero */
+#define RM_YMM		0x08008000U   /* YMM (AVX) operand */
+#define YMMREG		0x08009000U   /* YMM (AVX) register */
 #define REG_CDT		0x00101004U   /* CRn, DRn and TRn */
 #define REG_CREG	0x00111004U   /* CRn */
 #define REG_DREG	0x00121004U   /* DRn */
diff --git a/regs.dat b/regs.dat
index 7f347a20..47329034 100644
--- a/regs.dat
+++ b/regs.dat
@@ -80,3 +80,6 @@ mm0-7	MMXREG		mmxreg		0
 # SSE registers
 xmm0	XMM0		xmmreg		0
 xmm1-15	XMMREG		xmmreg		1
+
+# AVX registers
+ymm0-15	YMMREG		ymmreg		0