Changeset 66056 in vbox

Timestamp:

Mar 10, 2017 9:00:46 PM (8 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

113922

Message:

x86.h: X86_MODRM_MAKE()

File:

• trunk/include/iprt/x86.h (modified) (1 diff)

trunk/include/iprt/x86.h

@@ -4098 +4098 @@
 AssertCompile((X86_MODRM_REG_MASK >> X86_MODRM_REG_SHIFT) == X86_MODRM_REG_SMASK);
 AssertCompile((X86_MODRM_MOD_MASK >> X86_MODRM_MOD_SHIFT) == X86_MODRM_MOD_SMASK);
+/** @def X86_MODRM_MAKE
+ * @param   a_Mod       The mod value (0..3).
+ * @param   a_Reg       The register value (0..7).
+ * @param   a_RegMem    The register or memory value (0..7). */
+# define X86_MODRM_MAKE(a_Mod, a_Reg, a_RegMem) (((a_Mod) << X86_MODRM_MOD_SHIFT) | ((a_Reg) << X86_MODRM_REG_SHIFT) | (a_RegMem))
 #endif
 /** @} */