Fix MMX_ENTER() exceptions.

2025-05-05 05:59:20 +02:00
parent ebb52490c3
commit 1e81473d34
1 changed files with 2 additions and 2 deletions
--- a/src/cpu/x86_ops_mmx.h
+++ b/src/cpu/x86_ops_mmx.h
@@ -22,12 +22,12 @@
    }

 #define MMX_ENTER()                          \
-    if (!cpu_has_feature(CPU_FEATURE_MMX)) { \
+    if (!cpu_has_feature(CPU_FEATURE_MMX) || (cr0 & 0x4)) { \
        cpu_state.pc = cpu_state.oldpc;      \
        x86illegal();                        \
        return 1;                            \
    }                                        \
-    if (cr0 & 0xc) {                         \
+    if (cr0 & 0x8) {                         \
        x86_int(7);                          \
        return 1;                            \
    }                                        \