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Emulation:
- Machine:
- Support for MegaST & MegaSTE machines added
(this also replaces the Real Time Clock / RTC option, since this chip
is only available on the Mega machines)
- The general purpose registers of the TT SCU are now correctly emulated
(this fixes the problem with AHDI not finding any partitions during boot)
- HD:
- Fix: Disable GEMDOS opcodes after GEMDOS drive is disabled
- Fix: GEMDOS HD can now be initialized multiple times,
e.g. when running EmuTOS RAM image from a normal TOS
- Fix: WORD access to IDE data register at 0xf00002
- Fix: '*.*' pattern with GEMDOS HD should match also files
without extension
- Video:
- Full rewrite of the GLUE state machine, including support for the
4 wakeup states in STF mode, as well as more accurate video timings
(hbl, timer b, top/bottom and left/right removal, mixing 50/60/71 Hz
lines)
- Correctly shows the last 8 pixels for STE 224 byte overscan
- Fix: reading video counter $FF8205/07/09 after modifying it
while display is ON
- Fix: location of the video counter's restart when screen runs at 60 Hz
- TT: sync ST & TT color registers immediately on write, handle
palette bank setting correctly, fix duochrome colors
- Falcon: handle byte access special case for ST color registers
- Falcon: border color support also in HiColor
- better hbl/timer b interrupts when CPU runs at 16/32 MHz
- Sound:
- Special cases for STE DMA sound when start address = end address
- Increase STE DMA volume when compared to the YM2149 volume
- Greatly improve Falcon DMA sound
- CPU:
- use WinUAE CPU for STF/STE mode too, not just Falcon (old CPU core
is considered deprecated)
- improved IACK and simultaneous interrupts
- access IO regs on 2 cycle boundaries when possible
- More accurate 68060 mode (instructions from previous CPU versions
removed in 68060 aren't accepted/emulated anymore)
- Misc bus error / IO mem register handling fixes for TT & Falcon
(e.g. add TT DIP switch register handler)
- Blitter:
- Better bus arbitration when blitter is started
- Don't cause bus error when accessing regions causing CPU bus error
- Fixes to DSP addressing
- Floppy:
- Fix the value of the WPT bit when inserting/ejecting a write protected
floppy
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Emulation:
- IDE improvements:
- Support for second drive (IDE slave)
- WIN_FORMAT command (allows HD Driver to format IDE drives)
- GEMDOS HDD emulation:
- Minor fixes to Fseek(), Fopen(), Fdatime() (e.g. Pure debugger works)
- On TOS v4 Fread() size arg is unsigned, on earlier TOS its signed
(bad code can use -1L to read whole file instead getting fail on TOS4)
- Prevent DTA and read/write functions accessing invalid memory areas
- Programs can now change read-only files to be writable
- Falcon sound emulation:
- Microphone (jack) emulation in Falcon mode (requires portaudio library)
- SSI direct sound entrance ("Audio Fun Machine" and winrec are working)
- DMA sound recording
- Crossbar handshake mode transfers
- Max VDI rez increased to TT-hi size (1280x960)
- 68020+FPU changed to 68EC030+FPU (no MMU 030) for Falcon and TT modes
(Some Falcon programs didn't work with 020)
- Video emulation on STF/STE:
- correctly shift the screen 4 pixels to the left when left border is removed
- add support for STE's 224 bytes overscan line without stabilizer
- when reading $ff8205/07/09 on STE, take into account the value
of horizontal scrolling/prefetch and linewidth
- when writing to $ff8205/07/09 on STE, correctly handle the case
where the write is made while display in ON
- LMC1992 emulation / STE sound filtering
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Changes:
- Again some code cleanup and bug fixes.
- The configuration file layout has changed a little bit: You might have to
check your settings in the GUI and to save the new configuration again.
- Window/fullscreen mode is now correctly initialized from the configuration
file.
- Added --window command line option to force a start in window mode.
- Added alert boxes to show warnings, errors and information messages.
- PC mouse pointer is now better in sync with the ST mouse pointer.
- It's now possible to load an alternative cartridge image file.
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- A lot of internal code cleanup and bug fixes.
- Added a dialog for creating new blank floppy disk images.
- The source code has been optimized for better emulation speed.
- Added RS232 emulation (still very experimental and not very well tested! It
seems not to work reliable yet. Help for debugging is very appreciated!).
- Some bugs in the 68000 emulation have been fixed.
- The emulator now checks for double bus errors and stops the emulation if
necessary (instead of crashing the emulator).
- Timer-D is now patched correctly again.
- The old font has been replaced by two new fonts so that the GUI now looks
better in high resolutions.
- The fonts are now linked into the executable.
- Added support for DIM floppy disk images.
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