Unify memory size detection.

Figure out memory size once at startup and save in a variable.
Change all run-time locations to use that variable instead of
    re-detecting memory size.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/biosvar.h b/src/biosvar.h
index 8f694e4b..0c68a2e0 100644
--- a/src/biosvar.h
+++ b/src/biosvar.h
@@ -257,6 +257,9 @@ struct extended_bios_data_area_s {
     // 0x5d
     u8 other2[0xC4];
 
+    // Physical memory available.
+    u32 ram_size;
+
     // ATA Driver data
     struct ata_s   ata;