Boebert@HI-MULTICS.ARPA (12/21/84)
Does there exist a document (underground or otherwise) which describes the internal form of .REL files? Thanx, Earl (Boebert -at HI-Multics)
andrew@orca.UUCP (Andrew Klossner) (12/23/84)
"Does there exist a document (underground or otherwise) which
describes the internal form of .REL files?"
Look in the MACRO-80 manual, in the chapter which describes the loader.
-- Andrew Klossner (decvax!tektronix!orca!andrew) [UUCP]
(orca!andrew.tektronix@csnet-relay) [ARPA]mpackard@uok.UUCP (01/01/85)
[] This is the format for .REL files: These files are bit-streams rather than byte-streams. ---------------------------------------------------------------------- | 1 | XX | XXXX | XX XXXXXXXXXXXXXXXX | XXX+CHARACTERS OF SYMBOL NAME| ---------------------------------------------------------------------- ^ ^ ^ ^ ^ | | | | | Always 1 | | | | | A Field B Field | | Chars are 8 Bit ASCII 00 - special link (see below) 01 - program relative 10 - data relative 11 - common relative | | Control Field: The following special link items have a B field only 0 - Entry Symbol (name for search) 1 - Select COMMON block 2 - Program name 3 - Request library search 4 - Reserved The following special link items have both an A field and B field 5 - Define COMMON size 6 - Chain external (A is head of address chain, B is name of external 7 - Define entry point (A is address B is name) 8 - External offset. Used for JMP and CALL to externals The following special link items have an A field only 9 - External + offset. The A value will be added to the two bytes starting at the current location counter immediately before execution. 10 - Define the size of the Data area. (A is the size) 11 - Set the loading location counter to A 12 - Chain address. A is the head of chain, replace all entries in chain with current location counter. The last entry in the chain has an address field of absolute zero. 13 - Define program size 14 - End of program (forces to byte boundary) The following special link item has neither an A nor a B field 15 - End File
cem@intelca.UUCP (Chuck McManis) (01/02/85)
Yes, a description exists, it is not so underground as you might expect. It
is in an appendix of the MicroSoft Utilities Manual. Not wishing to get into
any copyright flak I suggest you get a copy of this manual from MicroSoft or
Intel Literature (408) 987-8080 (Order Number 121797-001, don't know the price)
--Chuck
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