From: Cyrill Gorcunov <gorcunov@gmail.com>
Date: Sat, 15 Sep 2012 15:58:36 +0000 (+0400)
Subject: opflags: Introduce opflags generating macros
X-Git-Tag: nasm-2.10.06~11
X-Git-Url: https://repo.or.cz/w/nasm.git/commitdiff_plain/220ac6544c857f37be9b54f44e6805494493136c

opflags: Introduce opflags generating macros

This patch introduces two macros

 - OP_GENMASK, to generate masks in opflags
 - OP_GENBIT, to generate bit at specified position

we will use them with extended 64 bits opflags.

Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
---

diff --git a/opflags.h b/opflags.h
index d3da5b38..904a53a2 100644
--- a/opflags.h
+++ b/opflags.h
@@ -134,6 +134,10 @@
 
 typedef uint64_t opflags_t;
 
+#define OP_GENMASK(bits, shift)         (((UINT64_C(1) << (bits)) - 1) << (shift))
+#define OP_GENBIT(bit, shift)           (UINT64_C(1) << ((shift) + (bit)))
+
+
 /* Size, and other attributes, of the operand */
 #define BITS8           UINT64_C(0x00000001)
 #define BITS16          UINT64_C(0x00000002)