From 0cf6eafda249fc99cee2df0fb57a5c5f38e92f93 Mon Sep 17 00:00:00 2001
From: Ilya Vinogradov <46860715+Holodome@users.noreply.github.com>
Date: Tue, 9 Dec 2025 16:48:18 +0300
Subject: [PATCH] [bug] Fixed FMOV encoding bug (AArch64)

---
 asmjit-testing/tests/asmjit_test_assembler_a64.cpp | 4 ++++
 asmjit/arm/a64assembler.cpp                        | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/asmjit-testing/tests/asmjit_test_assembler_a64.cpp b/asmjit-testing/tests/asmjit_test_assembler_a64.cpp
index 27112ce..15aa84f 100644
--- a/asmjit-testing/tests/asmjit_test_assembler_a64.cpp
+++ b/asmjit-testing/tests/asmjit_test_assembler_a64.cpp
@@ -1907,6 +1907,10 @@ static void ASMJIT_NOINLINE test_aarch64_assembler_simd(AssemblerTester<a64::Ass
   TEST_INSTRUCTION("01F4034F", fmov(v1.s4(), 0.5));
   TEST_INSTRUCTION("01F4004F", fmov(v1.s4(), 2.0));
   TEST_INSTRUCTION("01F4036F", fmov(v1.d2(), 0.5));
+  TEST_INSTRUCTION("00F4030F", fmov(v0.s2(), 0.5));
+  TEST_INSTRUCTION("00F4000F", fmov(v0.s2(), 2.0));
+  TEST_INSTRUCTION("00F4034F", fmov(v0.s4(), 0.5));
+  TEST_INSTRUCTION("00F4004F", fmov(v0.s4(), 2.0));
   TEST_INSTRUCTION("01F4006F", fmov(v1.d2(), 2.0));
   TEST_INSTRUCTION("4190C31F", fmsub(h1, h2, h3, h4));
   TEST_INSTRUCTION("4190031F", fmsub(s1, s2, s3, s4));
diff --git a/asmjit/arm/a64assembler.cpp b/asmjit/arm/a64assembler.cpp
index c4070a1..9d81b25 100644
--- a/asmjit/arm/a64assembler.cpp
+++ b/asmjit/arm/a64assembler.cpp
@@ -3580,7 +3580,7 @@ Case_BaseLdurStur:
             if (q > 1 || sz > 2)
               goto InvalidInstruction;
 
-            static const uint32_t sz_bits_table[3] = { B(11), B(0), B(29) };
+            static const uint32_t sz_bits_table[3] = { B(11), 0, B(29) };
             opcode.reset(0b00001111000000001111010000000000);
             opcode ^= sz_bits_table[sz];
             opcode.add_imm(q, 30);