11 lines
505 B
Plaintext
11 lines
505 B
Plaintext
BLT
|
|
|
|
/BLT/ , /bl@t/ , /belt/ , n.,vt. Synonym for blit. This is the original form
|
|
of blit and the ancestor of bitblt. It referred to any large bit-field copy
|
|
or move operation (one resource-intensive memory-shuffling operation done on
|
|
pre-paged versions of ITS, WAITS, and TOPS-10 was sardonically referred to
|
|
as The Big BLT ). The jargon usage has outlasted the PDP-10 BLock Transfer
|
|
instruction from which BLT derives; nowadays, the assembler mnemonic BLT
|
|
almost always means Branch if Less Than zero.
|
|
|