- parse input routines improved
- empty input will repeat the last step command (eg. STEP FRAME)
- added CAPTURE command
- user input is copied to a script file. suitable for future
playback with the SCRIPT command
- added XAA command
o debugger
- renamed ui package to console package
- GUI instance now passed to NewDebugger, rather than created
internally
o regression
- begun refactor
- scripts now pass through input loop, allowing commands that
control the emulation (like RUN or STEP) to be effective
- reworked ONSTEP and ONHALT commands
- added STICK0 and STICK1 commands
o memory / pia
- improved RAM debugging output
- fixed duplicate detection
- fixed parsing of breakpoint values >16bit (I misread the
ParseInt() documentation)
o disassembly / commands
- GREP results now provide context
o gopher2600
- initscript now definable on the command line
o tia / playfield
- implemented "scoremode"
* I'd totally forgotten about this 2600 feature and was trying to
understand why the "28c3 intro" demo wasn't showing the atari logo
at the top of the screen. at the same time I had stumbled across
SvOlli's Revision 2013 lecture where he mentions it. lucky. I would
have spent a couple of hours probably, scratching my noggin.
- fixed bug that caused sprite position to be misrecorded
- caused by reckoning the effects of HMOVE from the reset position
rather than the current (possibly already adjusted) position
o debugger / colorterm
- implemented HOME/END keys for input loop
o monitor / sdltv staterecorder
- generalised colour assignment
- not perfect but more flexible
o debugger / breakpoints
- parsing of negative numbers now allowed
- UserRead() fixed such that inputting of certain characters (% and $)
is reflected correctly
o debugger
- improved commentary surrounding ctrl-c handling
o system monitor
- added monitor package to debugger
- this replaces the call to TV.MetaSignal in the TIA
- it is thought that this approach will be more flexible
- plus, it removes debugging specific code from the core emulation
o television
- renamed a few things so that they better describe new concepts
introduced with the system monitor package
- debugging colours can now be selected with a single keypress
- television scaling increase (=) and decrease (-)
- added hblank indicator when screen is unmasked
- metasignals overlay can now be toggled with the keyboard
- improved debugging output
- introduced meta-signals - can now show when HMOVE, RSYNC and WSYNC
are activated
- flipping between regular and debugging colors can now happen at
any time
- DISPLAY command only opens the display if it is called without
additional arguments.
- for example, calling "DISPLAY DEBUGCOLORS" does not cause the
display to appear.
- keyboard events now selectively handled by callback function, rather than the in the guiLoop
- benefits to this approach:
* more flexible - debugger can react differently to keyboard
events than, for example, the run mode frontend
* because the guiLoop is running in a different goroutine there
are limits to what it can do to the SDL window. using a
callback is the first step in synchronising the goroutines
- better duplication detection
- listing of breakpoints now prints target value in the targets
canonical format
o debugger
- fixed how debugger reacts to SDLTV right mouse button - not
duplicating breakpoints
o tia / video
- calculation of sprite pixel corrected
- reworked code for clarity
- moved TIA HMOVE into its own package to prevent circular imports
between the TIA tia and video packages.
o sdltv
- improved cursor display - the currently affected pixel is now
visible "through the cursor"
- debug colours (just the players for now)
- hmove type now uses a latch to keep track of when hmove event is
over, rather than the rather clumsy and prone to error method we
had previously. this goes someway to fixing a bug in the
emulation caused by late HMOVEs
o polycounter
- modified MachineInfo() output
- updated test routines to reflect changes to MachineInfo output
o debugger
- added DEBUGCOLORS toggle to DISPLAY command
- PLAYER command in verbose mode now prints player 0 and player 1
side by side for easier comparison
- similarly for MISSILE command
- verbose PLAYER output now includes commentary of the sprite size
setting
- similarly for MISSILE command
- corrected initialisation script error output
- removed tab completion time limit - can now cycle through options
until another key is pressed
o television
- improved screen size detection and stability routines
- this currently breaks the fix we had in place for Plaque Attack
but I think we can probably fix that some other way
- renamed some files in memory package
- removed unused functions / parameters
- corrected location of TIM*T registers
o cartridge
- implemented cartridge RAM
- now working (not withstanding other bugs)
* Crystal Castles
* Donkey Kong (Homebrew)
* Gauntlet (Homebrew)
- bank switching now occurs on write as well as read
- now working
* MsPacman
- removed TVState construct
- GetTVState now returns an interface{}
- after second thoughts TVState was too clumsy. debugging targets
can be constructed with the genericTarget struct
- the only thing we've lost for now, is automatic consistency of
labelling but I think that can be solved more elegantly
o debugger/targets
- parse targets now wraps GetTVState results in genericTarget struct
o panics
- all panics now follow the same pattern - no mixture of Sprinf()s
and Errorf()s
o disassembler
- parseMemory now reaches all areas of the ROM
- reworked disassembly routines so that it works better with
multi-bank cartridges.
- unfinished
o cpu
- reworked cpu testing routines
- NoSideEffects has been changed to NoFlowControl
* this means that memory is now written
* it is intended that NoFlowControl CPU instances be supplied with a
memory shim that can filter out write addresses as appropriate
* this was done so that we can see switching of cartridge banks
- added CARTRIDGE command
o cpu
- redid/clarified test for post-indexed-indirect addressing
o tia
- sketched in audio package
- altered video package and tia to make sure it fitted in correctly
- collisions registers are set only when they need to be altered and
not every video cycle - dramatic increase in performance
- futures now implemented with a linked list
* improves performance when number of pending futures is low
o sdltv
- improved frame limiter (not yet perfect)
o gopher2600
- run and fps modes correctly report error on failure
- without checking, I'm pretty sure this was removed in error in the recent past
- simplified run and stepping frontend to vcs hardware
- improved fps mode
o television
- removed extraneous members in headless class
- corrected setting of visible screen size
- fixed stability detection - increased number of required
consecutive frames to six.
- this fixes an issue with the homebrew donkey kong rom under
certain circumstances.
- recording of when vblank is turned off/on has been refined
- this fixes Custer's Revenge which turns vblank off mid-screen, and
then back on again.
o sdl tv
- no longer plots pixels if vblank is off within the play area
- unless masking is turned off
- fixed stability detection - once a stable number of scanlines has
been detected the emulation sticks with it. this prevents the play
window from being resized.
- Plaq Attack turns off vblank a scanline "late" sometimes - this
causes the image to bounce - this has now been fixed (note that the
bounce still occurs when the screen is unmasked; although this is
arguably the correct behaviour for that mode)
o cpu
- added "indexed zero page x" version of undocumented "lax"
instruction
- fixed issue with Keystone ROM while not breaking regression tests
- I don't believe for a moment that this is a perfect solution but it makes sense in the context of that ROM.
- added the concept of MachineInfoInternal - which is meant to be
provide deeper and probably inaccessible insight into the emulation
- added to accomodate new "TIA HMOVE" command
- retrofitted "TIA FUTURE" in the same way
- color terminal input loop now responds to gui events correctly
- fixed debugger/memory layer
- debugger/memory layer also now searches cartridge specific symbols
o television
- altered semantics of status requests (for clarity)
- added Reset() to television interface
- HeadlessTV implements Reset()
o regression testing
- now shows complete paths to cartridge file
- fixes confusion in regression output when cartridges with the same
name appear in different folders
o video/future
- rerolled future group Tick() function
- tidy up of command line parsing
o regression testing
- added regression package
- implemented simple database to facilitate regression tests
- uses DigestTV
- implemented a headless television that can save the last image to a file
o DigestTV
- implemented a headless television that updates a screen digest
every frame
o gopher2600
- added "regress" mode. uses digesttv and will be used as the basis
of a complete regression testing mode
- reverted motion clock timings from 480ff22670eb8898b0d15d5f884257232db584bf
- this visually breaks Keystone Kapers ROM again but this was
definitely not the right solution because the fix broke both Yar's
Revenge and the stress-test-cards.
* I really now need to implement automatic regression tests
o debugger
- implemented grepping of disassembly
- window is now resized according how and when VBLANK is
switched on and off
- implemented stability check to limit when window resizing occurs
- Dragster now works correctly
o television
- improved how out-of-spec television signals are handled
- added new request type SETVISIBILITYWHENSTABLE
- SETVISIBILITY request type now accepts optional second argument
for whether the screen should be updated when visiblity is true
(some code paths will deadlock otherwise)
- updated Signal() interface - now propagates errors correctly
o gopher2600
- run mode now uses SETVISIBILITYWHENSTABLE
- fixed onclose event
- close callback is now called
- this was inadvertently removed sometime between faaf21a99ea6bbe711d258b1785700f8c3f8a9fe
and a45d1fcdd0b198f04d9757cd27add880981e1e46
- improved (slightly) how out-of-spec displays are handled
o regsiter_test
- tweaked test functions
o futures
- fixed resolution of individual instances
