projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| b5d17f4d | 1 | /* savax.h 4.3 82/07/15 */ |
| 7eae043e BJ |
2 | |
| 3 | /* | |
| 4 | * Standalone definitions peculiar to vaxen | |
| 5 | * The mba devices in the standalone system are addressed as | |
| 6 | * xx(unit,section) | |
| 7 | * where unit is | |
| 8 | * 8*mbanum+drive | |
| 9 | * The mbadrv macro gives the address of the device registers | |
| 10 | * for the specified unit; the mbamba macro gives the address of the | |
| 11 | * mba registers themselves. | |
| 12 | * | |
| 13 | * The uba devices are also addressed by giving, as unit, | |
| 14 | * 8*ubanum+drive | |
| 15 | * The ubamem macro converts a specified unibus address (ala pdp-11) | |
| 16 | * into a unibus memory address space address. | |
| 17 | */ | |
| 18 | ||
| 19 | int cpu; /* see <sys/cpu.h> */ | |
| 20 | ||
| 21 | #define MAXNMBA 4 | |
| 22 | struct mba_regs **mbaddr; | |
| 23 | int mbaact; | |
| 24 | caddr_t *umaddr; | |
| 25 | struct uba_regs **ubaddr; | |
| 26 | ||
| 27 | #define UNITTOMBA(unit) ((unit)>>3) | |
| 28 | #define UNITTODRIVE(unit) ((unit)&07) | |
| 29 | ||
| 30 | #define mbamba(unit) (mbaddr[UNITTOMBA(unit)]) | |
| 31 | #define mbadrv(unit) (&mbamba(unit)->mba_drv[UNITTODRIVE(unit)]) | |
| 32 | ||
| 33 | #define UNITTOUBA(unit) ((unit)>>3) | |
| 34 | #define ubauba(unit) (ubaddr[UNITTOUBA(unit)]) | |
| b5d17f4d | 35 | #define ubamem(unit, off) ((umaddr[UNITTOUBA(unit)]+ubdevreg(off))) |