Before changing the core disassembler, we take care of minor code clarity
issues and improve readability.
Since xlen variable is not (and should not) used outside riscv-dis.c,
this commit makes this variable static.
opcodes/ChangeLog:
* riscv-dis.c (xlen): Make this variable static.
#include <ctype.h>
/* Current XLEN for the disassembler. */
-unsigned xlen = 0;
+static unsigned xlen = 0;
/* Default ISA specification version (constant as of now). */
static enum riscv_spec_class default_isa_spec = ISA_SPEC_CLASS_DRAFT - 1;