Changes for PC-Dragon v2.02

Changes from v2.01 to v2.02 are as follows:

• Fixed bug causing the DAA instruction to behave unreliably.
• Fixed disassembly of indexed modes "5,r", "6,r" and "11,r".
• Fixed bugs preventing the use of relative pathnames as filenames.
• Fixed bug which caused snapshots containing memory only (ROM cartridges) to corrupt the 6809.
• Fixed bug which prevented DGN files from loading correctly if specified on the command line complete with an extension.
• Changed the default string assigned to the key combination Alt-F4.
• Maximised the emulators acceptance of "/" as an alternative to "\".
• Added support for multiple page prefixes to 6809 engine, debugger and disassembler.
• Added support for V1.4 snapshots with zero length (CoCo2 V1.5 format).
• Added an FIRQ trigger when snapshots starting at $C000 are loaded.
• Changed the help information displayed by DC.EXE (no functional changes).
• Enhanced WHATIS.EXE to recognise many additional file types.
• Repackaged PC-Dragon as two "freeware" ZIP files.
• Made various updates and corrections to documentation.

Changes for PC-Dragon v2.01

Changes from v2.00 to v2.01 are as follows:

• Fixed ugly bug which caused the keyboard to hang after debugger functions B, O, X and V if 'Real Mode' keyboard emulation was selected.
• Fixed bug causing disassembly of CWAI instruction to display "CWAICC".
• Fixed bug causing relative speed measurement to be wrong after IRQ rate adjusted using options menu.
• Fixed refresh bugs after debugger memory edit and fill functions.
• Changed v1.4 snapshot SB volume from 1 to 0, and SB type from 255 to 3.
• Added feature which enables use of Dragon 32 snapshots with Dragon 64 ROM.
• Added facility for specifying snapshot portability. Introduced filetype D96 for this purpose, and v2.01 of snapshot extensions.
• Can now use DOWN cursor key to scroll disassembly screen.

Bugs List

Known outstanding bugs are as follows:

• SEX instruction may not set condition codes correctly.
• Mouse pointer is not handled correctly during mode changes.
• Keys Ctrl-F1 to Ctrl-F4 corrupt 6809 memory address $24E.
• Possible memory corruption with Novell LANs.
• Emulator is sometimes subject to long pauses under Windows NT (cause unknown).
• Various documentation errors (including a rogue page break in pcdragon.ps).

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