Cray CRAY-1 - Page 117

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034ijk
035ijk
03fijk
037ijk
Block transfer (Ai) words from memory starting at
address (Ao) to B registers starting at register jk.
Block transfer (Ai) words from B registers starting
at register jk to memory starting at address (Ao)
Block transfer (Ai) words from memory starting at
address (Ao) to T registers starting at register jk
Block transfer (Ai) words from T registers starting
at register jk to memory starting at address (Ao)
These instructions perform block transfers between memory and B or T
registers.
In all of the instructions, the amount of data transferred is specified
by the lower seven bits of (Ai). See special cases for details.
The first register involved in the transfer is specified by jk. Successive
transfers involve successive B or T registers until B77 or T77 is reached.
Since processing of the re9isters is circular, Boo will be processed
after B77 and Too will be processed after T77 if the count in (Ai) is
not exhausted.
The first memory location referenced by the transfer instruction is
specified by (Ao). The Ao register contents are not altered by
execution of the instruction. Memory references are incremented by one
for successive transfers.
For transfers of B registers to memory, each 24-bit value is right adj~9ted
in the word; the upper 40 bits are zeroed. When transferring from memory
to B registers, only the low order 24 bits are transmitted; the upper 40
bits are ignored.
2240004
4-31
E