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- CHAPTER 15 RELEASE HISTORY OF A86
-
- Virtually all releases of A86 include bug fixes. If I don't say
- anything about a release, then it was essentially only bug fixes.
-
- V2.10 June 1986. Initial public release of the MSDOS version of
- A86. The last previous version ran under the Xenix
- operating system on the Altos series of computers. For
- this "public offering", I cleaned up the invocation
- syntax, upgraded the error-reporting facility, and started
- adding compatbility features.
-
- V2.11 June 1986. Added RADIX command.
-
- V2.13 July 1986. Reduced memory requirements.
-
- V2.15 August 1986. Implemented COMMENT directive for
- compatibility; added floating point instruction set and DQ
- and DT directives.
-
- V2.16 August 1986. Made internal changes to accommodate forward
- referencing in D86's patch-memory mode.
-
- V2.18 November 1986.
-
- V2.90 March 1987. Test release for .OBJ support.
-
- V3.00 April 1987. Major upgrade. Added added support for
- linkable .OBJ files, long constants and floating-point
- constants, A86LIB library tool and A86LIB support,
- ability to forward-reference variables, 286
- protected-mode and NEC-specific instructions, options not
- to insert errors in source, long forward JMP for local
- labels, and default decimal, "=" equate compatibility
- feature, double-quoted strings, and parentheses no longer
- required for most DUP right operands.
-
- V3.01 April 1987. Added "S" suppress-symtab and "C"
- case-sensitivity switches
-
- V3.05 June 1987. Added recognition of SEGMENT AT in non-OBJ
- mode, and ignore END directive in non-OBJ mode
-
- V3.07 July 1987. Added features necessary for Turbo C support
- (+c, +f, +F switches; ignore DGROUP:). Generalized the
- environment variable to include macro files. Added the
- ampersand feature. Made = compatible with MASM.
-
- V3.09 August 1987. Legalized MOV segreg,immediate. Duplicated
- MASM functionality for case-sensitive mode (A86's +C
- switch).
-
- V3.10 September 1987. Added a printed version of the manual.
- Added +c switch, reinstating case sensitivity during
- assembly, but this time without sensitivity in built-in
- symbols.
- 15-2
-
- V3.11 November 1987. Added the SEG operator for compatibility
- with Turbo C, and made it possible to define relocatable
- segments called CODE, DATA, or STACK, for compatibility
- with Turbo Pascal.
-
- V3.12 February 1988. Changed the format of SYM files, so that
- they are much smaller yet hold more information. Allowed
- an arbitrary expression to appear in a conditional
- assembly (#IF) directive. Added macro features: #V value
- operator, #S size operator, #N number operator, #EX exit
- directive, string comparison of operands, and large
- operand numbers (up to 255).
-
- V3.13 March 1988. Made memory management more flexible, to
- allow A86 to run with less available memory.
-
- V3.15 May 1988. Allowed up-arrow in place of equals-sign in
- invocation equates. Allowed MOV mem,mem and XCHG of a
- variety of new forms, generating sequences of instructions
- to implement the unavailable forms.
-
- V3.17 June 1988.
-
- V3.18 July 1988. For compatibility: allowed OFFSET segname, and
- implicitly converted a constant with a segment override
- into a memory type.
-
- V3.19 August 1988.
-
- V3.20 July 1989. Made internal redesign of handling of size-
- override operators (B, W, D, F, etc.) so they are handled
- more consistently. Outlawed first DATA SEGMENT without a
- starting ORG statement, forcing an explicit ORG 0 for
- future compatibility.
-
- V3.21 August 1989.
-
- V3.22 January 1990. Added support for additional coprocessors:
- the 80387 and the IIT-2C87. Made numerous minor changes
- to enhance MASM-compatibility.
-
- V3.70 January 1994. Test release for INCLUDE support, forward
- ORGs, default ORG for DATA SEGMENT to the end of the
- program, listing files, macros in A86LIB, K numeric base,
- the DEF and REF operators, numeric operands to MOVx and
- STOSx, enforcement of processor-specific instructions,
- forward references in complicated expressions, and symbols
- beginning with a period.
-
- V4.00 December 1994. "Official" public release with all the new
- features mentioned in V3.70 above. Added COMPAT.8 file to
- implement some MASM directives as A86 macros.
-
- V4.01 March 1995.
-
- V4.02 September 1995.
-
-