From 5c01fbabac658d7d567efdff333a10bb2be5ca09 Mon Sep 17 00:00:00 2001
From: ptitSeb <sebastien.chev@gmail.com>
Date: Sun, 11 Feb 2024 11:31:31 +0100
Subject: [INTERPRETER] Improved FXAM handling

---
 src/emu/x87emu_private.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/emu/x87emu_private.h b/src/emu/x87emu_private.h
index 6b62fe48..ae977133 100644
--- a/src/emu/x87emu_private.h
+++ b/src/emu/x87emu_private.h
@@ -128,7 +128,7 @@ static inline double fpu_round(x64emu_t* emu, double d) {
 
 static inline void fpu_fxam(x64emu_t* emu) {
     emu->sw.f.F87_C1 = (ST0.ud[1]&0x80000000)?1:0;
-    if(emu->fpu_stack<=0) {
+    if((emu->fpu_stack<=0) || (emu->p_regs[(emu->top)&7].tag == 0b11)) {
         //Empty
         emu->sw.f.F87_C3 = 1;
         emu->sw.f.F87_C2 = 0;
-- 
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