More (S)VGA horizontal blanking fixes and CPU CR0 bit 4 fixes.

2024-02-09 18:02:33 +01:00
parent 30e7a49558
commit 3f8952a558
8 changed files with 58 additions and 52 deletions
--- a/src/cpu/x86.c
+++ b/src/cpu/x86.c
@@ -270,6 +270,8 @@ reset_common(int hard)
        cr0 = 1 << 30;
    else
        cr0 = 0;
+    if (is386 && !is486 && (fpu_type == FPU_387))
+        cr0 |= 0x10;
    cpu_cache_int_enabled = 0;
    cpu_update_waitstates();
    cr4              = 0;