clock year fix for sparc (Blue Swirl)

diff --git a/hw/m48t59.c b/hw/m48t59.c
index 81e64e44183f36385770170aea3f49a35c7e67d6..daa1c524db6fb7f5bc37905be9dd35c86a2320c1 100644 (file)
--- a/hw/m48t59.c
+++ b/hw/m48t59.c
@@ -332,7 +332,10 @@ void m48t59_write (m48t59_t *NVRAM, uint32_t addr, uint32_t val)
        tmp = fromBCD(val);
        if (tmp >= 0 && tmp <= 99) {
            get_time(NVRAM, &tm);
-           tm.tm_year = fromBCD(val);
+            if (NVRAM->type == 8)
+                tm.tm_year = fromBCD(val) + 68; // Base year is 1968
+            else
+                tm.tm_year = fromBCD(val);
            set_time(NVRAM, &tm);
        }
         break;
@@ -421,7 +424,10 @@ uint32_t m48t59_read (m48t59_t *NVRAM, uint32_t addr)
     case 0x1FFF:
         /* year */
         get_time(NVRAM, &tm);
-        retval = toBCD(tm.tm_year);
+        if (NVRAM->type == 8) 
+            retval = toBCD(tm.tm_year - 68); // Base year is 1968
+        else
+            retval = toBCD(tm.tm_year);
         break;
     default:
         /* Check lock registers state */