LDS/LES/LFS/LGS/LSS: Fix segment wraparounds in 16-bit address mode.

2025-04-07 06:03:19 +02:00
parent 018ff46253
commit 3b5966eb46
15 changed files with 105 additions and 31 deletions
--- a/src/cpu/x86_ops_ret.h
+++ b/src/cpu/x86_ops_ret.h
@@ -15,7 +15,7 @@
        op_loadcs(readmemw(ss, ESP + 2));             \
    } else {                                          \
        cpu_state.pc = readmemw(ss, SP);              \
-        op_loadcs(readmemw(ss, SP + 2));              \
+        op_loadcs(readmemw(ss, (SP + 2) & 0xffff));   \
    }                                                 \
    if (cpu_state.abrt)                               \
        return 1;                                     \