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author Vas Crabb <vas@vastheman.com>2021-06-12 03:00:21 +1000
committer Vas Crabb <cuavas@users.noreply.github.com>2021-06-13 09:38:01 +1000
commit73d97b7dc492871d3dcf4ee919fc443dd2308dec (patch)
treec394cccb9d6514a5b8e69f054d5d27ecc50a5d58 /src/devices/cpu/uml.cpp
parent27b93b23486533747d9ba185ff54da860223a463 (diff)
Added helpers for 64-bit count leading zeroes/ones.
Diffstat (limited to 'src/devices/cpu/uml.cpp')
-rw-r--r--src/devices/cpu/uml.cpp9
1 files changed, 2 insertions, 7 deletions
diff --git a/src/devices/cpu/uml.cpp b/src/devices/cpu/uml.cpp
index 8b0c7023f58..6a81d63400e 100644
--- a/src/devices/cpu/uml.cpp
+++ b/src/devices/cpu/uml.cpp
@@ -631,14 +631,9 @@ void uml::instruction::simplify()
if (m_param[1].is_immediate())
{
if (m_size == 4)
- convert_to_mov_immediate(count_leading_zeros(m_param[1].immediate()));
+ convert_to_mov_immediate(count_leading_zeros_32(m_param[1].immediate()));
else if (m_size == 8)
- {
- if ((m_param[1].immediate() >> 32) == 0)
- convert_to_mov_immediate(32 + count_leading_zeros(m_param[1].immediate()));
- else
- convert_to_mov_immediate(count_leading_zeros(m_param[1].immediate() >> 32));
- }
+ convert_to_mov_immediate(count_leading_zeros_64(m_param[1].immediate()));
}
break;