nosplit: Generate index-only EA only when a multiplier is used.

[nosplit eax] has been encoded as [eax*1+0] since 0.98.34.
But this seems like unexpected behavior.
So only when a register is multiplied, that will be treated
as an index. ([nosplit eax*1] -> [eax*1+0])
Document is updated accordingly.

Signed-off-by: Jin Kyu Song <jin.kyu.song@intel.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/assemble.c b/assemble.c
index fbd7caf..eeab9bb 100644
--- a/assemble.c
+++ b/assemble.c
@@ -2635,9 +2635,10 @@ static enum ea_type process_ea(operand *input, ea *output, int bits,
                         bt = it, bx = ix, s--;
                     }
                     if (it == -1 && (bt & 7) != REG_NUM_ESP &&
-                        (eaflags & EAF_TIMESTWO)) {
+                        (eaflags & EAF_TIMESTWO) &&
+                        (hb == b && ht == EAH_NOTBASE)) {
                         /*
-                         * convert [NOSPLIT EAX]
+                         * convert [NOSPLIT EAX*1]
                          * to sib format with 0x0 displacement - [EAX*1+0].
                          */
                         it = bt, ix = bx, bt = -1, bx = 0, s = 1;