Return no mask when the TSS type is 286, closes #4177.

2024-02-19 19:09:35 +01:00
parent e3e30e7536
commit 733c26d04a
1 changed files with 3 additions and 0 deletions
--- a/src/cpu/386_common.c
+++ b/src/cpu/386_common.c
@@ -1605,6 +1605,9 @@ checkio(uint32_t port, int mask)
 {
    uint32_t t;

+    if (!(tr.access & 0x08))
+        return 0;
+
    cpl_override = 1;
    t            = readmemw(tr.base, 0x66);