- HACC
- HARDWARE_ERROR
- HA_CMD_INQUIRY
- HA_CMD_READ_BUFF
- HA_CMD_SELF_DIAG
- HA_CMD_WRITE_BUFF
- HDIO_REQ
- HD_CMD
- HD_COMMAND
- HD_CURRENT
- HD_DATA
- HD_DELAY
- HD_ERROR
- HD_HCYL
- HD_LCYL
- HD_NSECTOR
- HD_PRECOMP
- HD_SECTOR
- HD_STATUS
- HD_TIMER
- HD_TYPE
- HOST
- HOST_STACK_END_ADDR
- HOST_TEXT_START_ADDR
- HOUR
- HRST
- HUPCL
- HZ