Reorganize the source code into subdirectories

Make the source code easier to understand and keep track of by
organizing it into subdirectories depending on the function.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/common/common.c b/common/common.c
new file mode 100644
index 00000000..9c91f910
--- /dev/null
+++ b/common/common.c
@@ -0,0 +1,93 @@
+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 1996-2016 The NASM Authors - All Rights Reserved
+ *   See the file AUTHORS included with the NASM distribution for
+ *   the specific copyright holders.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following
+ *   conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *     
+ *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ *     CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ *     INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *     MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ *     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ *     CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *     NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ *     HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *     CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ *     OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ *     EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * ----------------------------------------------------------------------- */
+
+/*
+ * common.c - code common to nasm and ndisasm
+ */
+
+#include "compiler.h"
+#include "nasm.h"
+#include "nasmlib.h"
+#include "insns.h"
+
+/*
+ * The current bit size of the CPU
+ */
+int globalbits = 0;
+/*
+ * Common list of prefix names; ideally should be auto-generated
+ * from tokens.dat
+ */
+const char *prefix_name(int token)
+{
+    static const char *prefix_names[] = {
+        "a16", "a32", "a64", "asp", "lock", "o16", "o32", "o64", "osp",
+        "rep", "repe", "repne", "repnz", "repz", "times", "wait",
+        "xacquire", "xrelease", "bnd"
+    };
+    unsigned int prefix = token-PREFIX_ENUM_START;
+
+    if (prefix >= ARRAY_SIZE(prefix_names))
+	return NULL;
+
+    return prefix_names[prefix];
+}
+
+/*
+ * initialized data bytes length from opcode
+ */
+int idata_bytes(int opcode)
+{
+    switch (opcode) {
+    case I_DB:
+        return 1;
+    case I_DW:
+        return 2;
+    case I_DD:
+        return 4;
+    case I_DQ:
+        return 8;
+    case I_DT:
+        return 10;
+    case I_DO:
+        return 16;
+    case I_DY:
+        return 32;
+    case I_DZ:
+        return 64;
+    case I_none:
+        return -1;
+    default:
+        return 0;
+    }
+}