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Diffstat (limited to 'opcodes/s12z-dis.c')
-rw-r--r--opcodes/s12z-dis.c57
1 files changed, 27 insertions, 30 deletions
diff --git a/opcodes/s12z-dis.c b/opcodes/s12z-dis.c
index 14176fb..5db0b43 100644
--- a/opcodes/s12z-dis.c
+++ b/opcodes/s12z-dis.c
@@ -282,36 +282,33 @@ opr_emit_disassembly (const struct operand *opr,
struct memory_operand *mo = (struct memory_operand *) opr;
(*info->fprintf_func) (info->stream, "%c", mo->indirect ? '[' : '(');
- if (mo->base_offset != 0)
- {
- (*info->fprintf_func) (info->stream, "%d", mo->base_offset);
- }
- else if (mo->n_regs > 0)
- {
- const char *fmt;
- switch (mo->mutation)
- {
- case OPND_RM_PRE_DEC:
- fmt = "-%s";
- break;
- case OPND_RM_PRE_INC:
- fmt = "+%s";
- break;
- case OPND_RM_POST_DEC:
- fmt = "%s-";
- break;
- case OPND_RM_POST_INC:
- fmt = "%s+";
- break;
- case OPND_RM_NONE:
- default:
- fmt = "%s";
- break;
- }
- (*info->fprintf_func) (info->stream, fmt,
- registers[mo->regs[0]].name);
- used_reg = 1;
- }
+ const char *fmt;
+ assert (mo->mutation == OPND_RM_NONE || mo->n_regs == 1);
+ switch (mo->mutation)
+ {
+ case OPND_RM_PRE_DEC:
+ fmt = "-%s";
+ break;
+ case OPND_RM_PRE_INC:
+ fmt = "+%s";
+ break;
+ case OPND_RM_POST_DEC:
+ fmt = "%s-";
+ break;
+ case OPND_RM_POST_INC:
+ fmt = "%s+";
+ break;
+ case OPND_RM_NONE:
+ default:
+ if (mo->n_regs < 2)
+ (*info->fprintf_func) (info->stream, (mo->n_regs == 0) ? "%d" : "%d,", mo->base_offset);
+ fmt = "%s";
+ break;
+ }
+ if (mo->n_regs > 0)
+ (*info->fprintf_func) (info->stream, fmt,
+ registers[mo->regs[0]].name);
+ used_reg = 1;
if (mo->n_regs > used_reg)
{