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- Type 5 Utility Is Here!
-
- Dream On Associates has recently announced the Type 5
- Utility.
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- A natural extension of Type 3 and Type 4 programs, Type 5
- programs are "hyper relocatable", fitting themselves in between
- Type 1, 3 and 4 resident code (which may now therefore be
- considered obsolete).
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- Type 5's load into fragmented RAM by scanning the resident
- code to determine free memory. A Type 5 file uses TSA "damage
- control" code (see below) to compute the CRC of its loaded
- fragments and if it is found to be damaged (by program loads
- following the original invocation) an attempt is made to reload
- into the current environment (after removal of the damaged code).
- If this fails, TSA (Top Secret Algorithm) reallocates resident
- code to make room for the new request. Eventually, of course,
- TSA decides which Type 5 has to go and loads the new Type 5 into
- the released RAM.
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- DRL (Dream On Relocatable) files may be generated with DOA's
- Public Domain Hyper Virtual Assembler. TSA.ZRL, TSA.Z80
- assembled as a Type 4 program, must be loaded first.
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- With Type 5, all Type 1-4 code (save TSA.ZRL) may now be
- considered obsolete.
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- For further information, contact DOA directly.
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- Dream On Associates
- 545A 14th Street
- Ogden, UT 84408
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