Service manual

The IPRs listed in Table 5–9 are explicitly accessible to software only by

the Move To Processor Register (MTPR) and Move From Processor Register

(MFPR) instructions, which require kernel mode privileges. (The vector

indirect registers are also accessed with MTPR and MFPR instructions.

These registers are described in the System Technical User’s Guide.)

From the console, EXAMINE/I and DEPOSIT/I commands read and write

the IPRs. EXAMINE/M and DEPOSIT/M commands provide access to

the vector indirect registers above hex address 400. EXAMINE/VE and

DEPOSIT/VE provide access to the vector data registers.

Other instructions, the Move To/From Vector Processor (MTVP/MFVP)

instructions, are used by software to access the Vector Length, Vector

Count, and Vector Mask control registers. From the console, these registers

are speciﬁed as VLR, VCR, and VMR after DEPOSIT and EXAMINE

commands, with no qualiﬁers.

For more information on accessing the vector module registers, see the VAX

6000 Series Vector Processor Owner’s Manual.

<REFERENCE>(XRV) Vector Processor 5–29