x87: Fix Final Reality discolored screen for interpreter

Author: Cacodemon345

src/cpu/x87_ops.h

@@ -113,12 +113,33 @@ typedef union {
 static __inline void
 x87_push(double i)
 {
+#ifdef X87_INLINE_ASM
+    unsigned char buffer[10];
+#else
+    x87_conv_t test;
+#endif
 #ifdef USE_NEW_DYNAREC
     cpu_state.TOP--;
 #else
     cpu_state.TOP                    = (cpu_state.TOP - 1) & 7;
 #endif
     cpu_state.ST[cpu_state.TOP & 7] = i;
+
+#ifdef X87_INLINE_ASM
+    __asm volatile(""
+        :
+        :
+        : "memory");
+
+    __asm volatile("fldl %1\n"
+                    "fstpt %0\n" : "=m"(buffer) : "m"(i));
+
+    cpu_state.MM[cpu_state.TOP & 7].q = (*(uint64_t*)buffer);
+#else
+    x87_to80(i, &test);
+    cpu_state.MM[cpu_state.TOP & 7].q = test.eind.ll;
+#endif
+
 #ifdef USE_NEW_DYNAREC
     cpu_state.tag[cpu_state.TOP & 7] = TAG_VALID;
 #else
@@ -129,6 +150,11 @@ x87_push(double i)
 static __inline void
 x87_push_u64(uint64_t i)
 {
+#ifdef X87_INLINE_ASM
+    unsigned char buffer[10];
+#else
+    x87_conv_t test;
+#endif
     union {
         double   d;
         uint64_t ll;
@@ -142,6 +168,21 @@ x87_push_u64(uint64_t i)
     cpu_state.TOP                    = (cpu_state.TOP - 1) & 7;
 #endif
     cpu_state.ST[cpu_state.TOP & 7] = td.d;
+
+#ifdef X87_INLINE_ASM
+    __asm volatile(""
+        :
+        :
+        : "memory");
+
+    __asm volatile("fldl %1\n"
+                    "fstpt %0\n" : "=m"(buffer) : "m"(td.d));
+
+    cpu_state.MM[cpu_state.TOP & 7].q = (*(uint64_t*)buffer);
+#else
+    x87_to80(td.d, &test);
+    cpu_state.MM[cpu_state.TOP & 7].q = test.eind.ll;
+#endif
 #ifdef USE_NEW_DYNAREC
     cpu_state.tag[cpu_state.TOP & 7] = TAG_VALID;
 #else