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Diffstat (limited to 'disas/s390.c')
-rw-r--r--disas/s390.c16
1 files changed, 6 insertions, 10 deletions
diff --git a/disas/s390.c b/disas/s390.c
index 1f167d2eaa..6393860239 100644
--- a/disas/s390.c
+++ b/disas/s390.c
@@ -207,18 +207,14 @@ static int opc_index[256];
static void
init_disasm (struct disassemble_info *info)
{
- const struct s390_opcode *opcode;
- const struct s390_opcode *opcode_end;
+ int i;
memset (opc_index, 0, sizeof (opc_index));
- opcode_end = s390_opcodes + s390_num_opcodes;
- for (opcode = s390_opcodes; opcode < opcode_end; opcode++)
- {
- opc_index[(int) opcode->opcode[0]] = opcode - s390_opcodes;
- while ((opcode < opcode_end) &&
- (opcode[1].opcode[0] == opcode->opcode[0]))
- opcode++;
- }
+
+ /* Reverse order, such that each opc_index ends up pointing to the
+ first matching entry instead of the last. */
+ for (i = s390_num_opcodes; i--; )
+ opc_index[s390_opcodes[i].opcode[0]] = i;
#ifdef QEMU_DISABLE
switch (info->mach)