Wells AT, DataExpert 386WB, Genoa Unknown 486, Gigabyte GA-486L, Alaris Cougar, and updates to CMakeLists.txt and chipset.h. to finally include opti391.c and opti499.c.

src/mem/mem.c

@@ -2968,10 +2968,9 @@ umc_smram_recalc(uint32_t start, int set)
 }
 
 void
-mem_remap_top(int kb)
+mem_remap_top_ex(int kb, uint32_t start)
 {
     uint32_t   c;
-    uint32_t   start = (mem_size >= 1024) ? mem_size : 1024;
     int        offset;
     int        size = mem_size - 640;
     int        set        = 1;
@@ -3097,6 +3096,12 @@ mem_remap_top(int kb)
     flushmmucache();
 }
 
+void
+mem_remap_top(int kb)
+{
+    mem_remap_top_ex(kb, (mem_size >= 1024) ? mem_size : 1024);
+}
+
 void
 mem_reset_page_blocks(void)
 {