diff --git a/ps2xRecomp/src/lib/code_generator.cpp b/ps2xRecomp/src/lib/code_generator.cpp
index f831895..272e45d 100644
--- a/ps2xRecomp/src/lib/code_generator.cpp
+++ b/ps2xRecomp/src/lib/code_generator.cpp
@@ -1842,19 +1842,19 @@ namespace ps2recomp
             case COP1_S_RSQRT:
                 return fmt::format("ctx->f[{}] = 1.0f / sqrtf(ctx->f[{}]);", fd, fs);
             case COP1_S_ADDA:
-                return fmt::format("ctx->f[31] = FPU_ADD_S(ctx->f[{}], ctx->f[{}]);", fs, ft);
+                return fmt::format("FPU_SET_ACC(ctx, FPU_ADD_S(ctx->f[{}], ctx->f[{}]));", fs, ft);
             case COP1_S_SUBA:
-                return fmt::format("ctx->f[31] = FPU_SUB_S(ctx->f[{}], ctx->f[{}]);", fs, ft);
+                return fmt::format("FPU_SET_ACC(ctx, FPU_SUB_S(ctx->f[{}], ctx->f[{}]));", fs, ft);
             case COP1_S_MULA:
-                return fmt::format("ctx->f[31] = FPU_MUL_S(ctx->f[{}], ctx->f[{}]);", fs, ft);
+                return fmt::format("FPU_SET_ACC(ctx, FPU_MUL_S(ctx->f[{}], ctx->f[{}]));", fs, ft);
             case COP1_S_MADD:
-                return fmt::format("ctx->f[{}] = FPU_ADD_S(ctx->f[31], FPU_MUL_S(ctx->f[{}], ctx->f[{}]));", fd, fs, ft);
+                return fmt::format("ctx->f[{}] = FPU_ADD_S(ctx->f_acc, FPU_MUL_S(ctx->f[{}], ctx->f[{}]));", fd, fs, ft);
             case COP1_S_MSUB:
-                return fmt::format("ctx->f[{}] = FPU_SUB_S(ctx->f[31], FPU_MUL_S(ctx->f[{}], ctx->f[{}]));", fd, fs, ft);
+                return fmt::format("ctx->f[{}] = FPU_SUB_S(ctx->f_acc, FPU_MUL_S(ctx->f[{}], ctx->f[{}]));", fd, fs, ft);
             case COP1_S_MADDA:
-                return fmt::format("ctx->f[31] = FPU_ADD_S(ctx->f[31], FPU_MUL_S(ctx->f[{}], ctx->f[{}]));", fs, ft);
+                return fmt::format("FPU_SET_ACC(ctx, FPU_ADD_S(ctx->f_acc, FPU_MUL_S(ctx->f[{}], ctx->f[{}])));", fs, ft);
             case COP1_S_MSUBA:
-                return fmt::format("ctx->f[31] = FPU_SUB_S(ctx->f[31], FPU_MUL_S(ctx->f[{}], ctx->f[{}]));", fs, ft);
+                return fmt::format("FPU_SET_ACC(ctx, FPU_SUB_S(ctx->f_acc, FPU_MUL_S(ctx->f[{}], ctx->f[{}])));", fs, ft);
             case COP1_S_MAX:
                 return fmt::format("ctx->f[{}] = std::max(ctx->f[{}], ctx->f[{}]);", fd, fs, ft);
             case COP1_S_MIN:
diff --git a/ps2xRuntime/include/ps2_runtime.h b/ps2xRuntime/include/ps2_runtime.h
index a64c5f6..6113745 100644
--- a/ps2xRuntime/include/ps2_runtime.h
+++ b/ps2xRuntime/include/ps2_runtime.h
@@ -128,6 +128,7 @@ struct alignas(16) R5900Context
 
     // FPU registers (COP1)
     float f[32];
+    float f_acc; // FPU accumulator
     uint32_t fcr31; // Control/status register
 
     R5900Context()
diff --git a/ps2xRuntime/include/ps2_runtime_macros.h b/ps2xRuntime/include/ps2_runtime_macros.h
index 27c6683..6413333 100644
--- a/ps2xRuntime/include/ps2_runtime_macros.h
+++ b/ps2xRuntime/include/ps2_runtime_macros.h
@@ -550,6 +550,7 @@ inline __m128i ps2_u64_to_epi64_pair(uint64_t value)
 #define PS2_PMFHL_SH(hi, lo) _mm_shufflehi_epi16(_mm_shufflelo_epi16(_mm_packs_epi32(ps2_u64_to_epi64_pair(lo), ps2_u64_to_epi64_pair(hi)), _MM_SHUFFLE(3, 1, 2, 0)), _MM_SHUFFLE(3, 1, 2, 0))
 
 // FPU (COP1) operations
+#define FPU_SET_ACC(ctx, res) (ctx->f_acc = res)
 #define FPU_ADD_S(a, b) ((float)(a) + (float)(b))
 #define FPU_SUB_S(a, b) ((float)(a) - (float)(b))
 #define FPU_MUL_S(a, b) ((float)(a) * (float)(b))