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1988-07-22
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CHAPTER 9 RELEASE HISTORY AND FUTURE PLANS
Release History of D86
All releases include bug fixes.
V2.15 August 1986. Initial public release of the MSDOS version
of D86. The last previous version ran under the Xenix
operating system on the Altos series of computers.
Upgrades from that previous version included:
* easier command invocation syntax; default input files
* on-line help facility
* trapping program exit
* usage of IBM function keys
V2.16 August 1986. Slight upgrade. The only new feature is the
ability to make forward references in patch-memory mode.
V2.18 November 1986. Added the "O" command, to trap INT 33
calls.
V2.19 Test release in conjunction with A86 V2.90 test release
V2.22 April 1987. Release in conjunction with A86 V3.00. Added
support for new 286 and NEC-specific instructions. Added
"F" command, to find memory strings marked by the new
Shift-F7 command. Added recognition of IP register
specification. Added the floating point window. Added
disassembly of RET operand to jump instructions.
V2.23 June 1987. Added support for Sanyo 55x computers.
V2.24 June 1987. Added support for Tandy 2000 computers.
V3.09 August 1987. Major upgrade-- first product-quality
release. Added:
* support for EXE files, some support for BAT files
* second disassembly window
* extended memory display window
* floating point memory display types
* control keys for paging the memory display window
* status window
* backwards paging of disassembly
* Up-Arrow goes to previous instruction, not byte
* W command to write program and symbols to disk
9-2
* enhanced HOME key, and ctrl-E go-to-end key
* Ctrl-T set top-of-stack key
* fix for setup of FCB blocks in the program's PSP
* fix for stepping and G from INT, PUSHF, floating
instructions
* change of -V to +V, for A86 syntax compatibility
V3.10 September 1987. Trap INT 020 and INT 027.
V3.11 November 1987.
V3.12 February 1988. Interface with the new SYM file format of
A86. D86 will now correctly input all older versions of
SYM files as well.
V3.13 March 1988. Made memory management more flexible, so D86
requires less memory to run.
V3.14 March 1988.
V3.15 May 1988. Added data breakpoint for 386-based machines,
available to registered users only.
V3.17 June 1988. Added support for the Zenith Z-100.
V3.18 July 1988. Added MAPD86 tool for registered users only.
Future Plans
I'd like to thank all of you who have supported A86 and D86 so
far with your registrations. Your support has allowed me to
spend most of the past year improving my products, and I will
continue to work on them.
D86 is still a fair amount short of my ultimate vision for it. In
the coming year, I hope to add more debugger commands and
function keys. Some commands I have in mind are:
* save and play back keyboard scripts
* save and switch to/from the program's full screen
* expression arithmetic (and indirection) in all operands
* interrupt a running program from the keyboard
* conditional and multiple-count trapping
* do more kinds of memory searches
* gateway to DOS, with EXIT back to debugging session
9-3
I am eager to hear your ideas for what you'd like to see in terms
of expanded features. I will consider all requests.