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authorH. Peter Anvin <hpa@zytor.com>2016-05-25 12:06:29 -0700
committerH. Peter Anvin <hpa@zytor.com>2016-05-25 12:06:29 -0700
commite1f985c167495185c55c46e640f2607604597383 (patch)
tree3ddd11d12e6a3bf6e21c39d1342175d5488d8d39 /common
parent22538e2b6713d6e4e05fb82c6969320a519b4c93 (diff)
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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>
Diffstat (limited to 'common')
-rw-r--r--common/common.c93
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;
+ }
+}