Disassembler: select table based on VEX prefixes

We can use the new VEX prefixes to select into a large table of new
opcode spaces.  Since the table is (currently) sparse, add logic so we
don't end up producing tons of empty tables for no good reason.

This is also necessary since VEX is likely to reuse opcode bytes that
would appear as prefixes at some point, which would cause conflicts
with the regular tables.

1 files changed, 1 insertions, 0 deletions

diff --git a/insns.h b/insns.h
index 4f954a53..114b1cae 100644
--- a/insns.h
+++ b/insns.h
@@ -32,6 +32,7 @@ struct disasm_index {
 /* Tables for the assembler and disassembler, respectively */
 extern const struct itemplate * const nasm_instructions[];
 extern const struct disasm_index itable[256];
+extern const struct disasm_index * const itable_VEX[32][8];
 
 /* Common table for the byte codes */
 extern const uint8_t nasm_bytecodes[];