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/codegen/codegen_ops_x86-64.h
+++ b/src/codegen/codegen_ops_x86-64.h
@@ -1054,6 +1054,13 @@ MEM_LOAD_ADDR_EA_W_OFFSET(x86seg *seg, int offset)
    addbyte(0x83); /*ADD EAX, offset*/
    addbyte(0xc0);
    addbyte(offset);
+    if (!(op_32 & 0x200)) {
+        addbyte(0x25) /* AND EAX, ffffh */
+        addbyte(0xff);
+        addbyte(0xff);
+        addbyte(0x00);
+        addbyte(0x00);
+    }
    MEM_LOAD_ADDR_EA_W(seg);
 }
 static __inline void