diff options
Diffstat (limited to 'src/biosvar.h')
| -rw-r--r-- | src/biosvar.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/biosvar.h b/src/biosvar.h index bbb196a..e49a10a 100644 --- a/src/biosvar.h +++ b/src/biosvar.h @@ -132,6 +132,9 @@ struct bios_data_area_s { #define FMS_DOUBLE_STEPPING (1<<5) #define FMS_DATA_RATE_MASK (0xc0) +// Limit of BDA timer_counter field +#define TICKS_PER_DAY 1573040 + // Accessor functions #define GET_BDA(var) \ GET_FARVAR(SEG_BDA, ((struct bios_data_area_s *)0)->var) |