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authorMichael Smith <mikesmiffy128@gmail.com>2022-07-16 16:37:25 +0100
committerMichael Smith <mikesmiffy128@gmail.com>2022-07-23 19:02:10 +0100
commit8c8680ad112f3ad1360aa5547392119ed4de6581 (patch)
tree66e4a6f650693dedf20246d083492153724aae10 /src/x86util.h
parent5b801b6934bf8361af4cee7556351a7fd43150fa (diff)
Add keybind lookup code
Also centralise NEXT_INSN macro, into its own header at least for now.
Diffstat (limited to 'src/x86util.h')
-rw-r--r--src/x86util.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/x86util.h b/src/x86util.h
new file mode 100644
index 0000000..0ae89ae
--- /dev/null
+++ b/src/x86util.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright © 2022 Michael Smith <mikesmiffy128@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+ * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+ * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+ * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef INC_X86UTIL_H
+#define INC_X86UTIL_H
+
+#include <stdbool.h>
+
+#include "errmsg.h"
+#include "x86.h"
+
+// XXX: don't know where else to put this, or how else to design this, so this
+// is very much a plonk-it-here-for-now scenario.
+
+#define NEXT_INSN(p, tgt) do { \
+ int _len = x86_len(p); \
+ if (_len == -1) { \
+ errmsg_errorx("unknown or invalid instruction looking for %s", tgt); \
+ return false; \
+ } \
+ (p) += _len; \
+} while (0)
+
+#endif