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HISTORY.DOC
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Wolfware Assembler Revision History
This is a brief history of the changes that have been made to Wolfware
Assembler (WASM) since its initial release in February of 1986. In addition
to the below, erroneous instructions on how to patch up and fix certain bugs
in Version 1.0 were released in December of 1986. These instructions, if
encountered, should be avoided.
Version 1.0, February, 1986
Initial release.
Version 2.00, December, 1986
Major revision. New features include conditional assembly, macros,
parenthesis in expressions, DOS 2.0 support, and rewritten documentation
with index and bibliography. Major bugs fixed are unsigned divide
overflow and error closing include files. Upward incompatibilities are
operands must be separated by commas, only immediate data can be equated,
PROGRAM_SIZE is changed to $SIZE, and user defined symbols should not
start with $.
Version 2.01, February, 1987
New feature is relative ORG displacement. Other changes are FLAGALL- is
now default and larger programs can be assembled. Bugs fixed are error in
memory allocation that could result in insufficient memory error and the
spelling of "February" is corrected.
Version 2.02, March, 1987
New feature is segment override may be specifed as CS:, DS:, ES:, or SS:
(on the line before the instruction, same as DEBUG).
Version 2.03, March, 1987
Minor internal changes. New sample files.
Version 2.10, November, 1987
Support for 8087 instructions, $END constant implemented.
Version 2.11, March, 1988
Minor internal changes. Sample files updated.
Version 2.20, March, 1989
Support for 80186 and 80286 instructions.
Version 2.21, January, 1990
Minor internal changes to support error trapping from editors. Sample
files updated.
Version 2.22, September, 1990
Fixed "PUSH immed" instruction. Sample files updated.
Version 2.23, April, 1991
Removed end line number on macro list line.