diff options
author | 2025-03-21 14:21:08 -0400 | |
---|---|---|
committer | 2025-03-21 14:21:08 -0400 | |
commit | e3997fb6b2caefaeba23cc6f3d3b67013ece87fb (patch) | |
tree | f62c31bd156c94b0d56fa88050c952898aae3115 /src/devices/cpu | |
parent | 5954767b0b4da0c43f7194c7def4c162fbc8ef78 (diff) |
Revert "i960: don't preserve sign bit when shifting integer left (#13507)"
This reverts commit 5954767b0b4da0c43f7194c7def4c162fbc8ef78.
This was merged way too hastily based on incomplete information.
Diffstat (limited to 'src/devices/cpu')
-rw-r--r-- | src/devices/cpu/i960/i960.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/devices/cpu/i960/i960.cpp b/src/devices/cpu/i960/i960.cpp index 40bda560f40..7d31ad031bf 100644 --- a/src/devices/cpu/i960/i960.cpp +++ b/src/devices/cpu/i960/i960.cpp @@ -1157,7 +1157,7 @@ void i960_cpu_device::execute_op(uint32_t opcode) m_icount--; t1 = get_1_ri(opcode); t2 = get_2_ri(opcode); - set_ri(opcode, t1 >= 32 ? 0 : ((int32_t)t2) << t1); + set_ri(opcode, (t2 & 0x80000000) | (t1 >= 32 ? 0 : (t2<<t1) & 0x7fffffff)); // sign is preserved break; default: |