4.10.x bugs fixed. Fully cycle-accurate unexpanded Amiga 500 emulation.

WinUAE 4.9.x/4.10.x bugs fixed

• AGA-only sprite buffer overflow that can cause random side-effects.
• CIA synchronize clock drift fixed.
• Many GDI mode bugs fixed.
• Integer scaling works correctly in Overscan+ and higher modes.
• “Remove interlace artifacts” was unreliable and caused graphics corruption in accurate modes.
• SCSI CD command READ TOC, format type 0 returned invalid data.
• Serial port and inter-process serial port was unreliable in accurate modes.
• VHPOSW/VPOSW mid-screen vertical and horizontal changes are now more accurately emulated. Smooth Copper / Up front demo specific hack is (finally!) not needed anymore and was removed.
• Multiple chipset emulation (bitplanes, sprites, blitter) bug fixes.

Older bugs fixed

• A600 non-expanded Quickstart incorrectly had RTC enabled.
• D3D11 mode scanlines/masks are not affected by scaling anymore.
• Fixed possible crash in floppy emulation and when exiting GUI.
• Inserting supported non-Amiga formatted disk image (for example PC DOS formatted disk image) in standard Amiga 3.5″ DD drive was rejected, drive compatibility check didn’t accept standard 3.5″ DD drive. Image was accepted if drive was 3.5″ HD drive.
• Mounting executable as HD floppy image created broken disk structure if file was larger than 1329664 bytes.
• Notification icon -> Floppy drives: DF1, DF2 and DF3 selected image from DF0:
• On the fly switch from AGA to OCS/ECS and then back didn’t always restore original AGA background color.
• Picasso IV flash ROM emulation support.
• Prometheus PCI bridge PCI config space byte wide access endian swap fix.
• ROM rescan in ini mode didn’t clear previously detected ROMs.
• uaegfx and hardware emulated RTG board and emulation window smaller than RTG resolution: part of right or bottom of display was clipped.

New features/updates: UI

• Added new KS ROMs to ROM scanner.
• Added Disable keyboard and Disable game controllers when mouse not captured options to Pri & Extensions panel.
• Added custom data path configuration to Paths panel. Data path = default path where config files, logs, statefiles etc are loaded and saved.
• Bring GUI window on top if emulation window gets left mouse button double click or F12 (or configured GUI key) key press and GUI is open. Close GUI if ESC is pressed when GUI is open and emulation window has focus.
• FloppyBridge write protection status in GUI is now mirroring real drive floppy protection status.
• Hardware info panel shows complete memory map when emulation has been started.

New features/updates: emulation

• 1.5M Chip RAM size is now supported in all configurations. (Except if JIT is enabled)
• Added screen rotation support, to fully support Fast Draw Showdown (American Laser games) game that had 90 degree rotated display. D3D 9 and D3D 11 modes only.
• ECS Denise superhires sprite accurate color selection emulation (“scrambled” odd/even palette access).
• Keyboard reset handling changed, now system is kept in reset as long as keys are kept pressed.
• Programmed native display mode support improved, automatic aspect ratio correction improved.
• RTG hardware sprite (mouse cursor) is now properly clipped when near edges of screen.
• “Reset warp mode” implemented. Start emulation in warp mode, automatically switches off when running program or KS ROM shows something on screen.
• Serial port now have separate options to enable/disable handshake/status pin emulation (RTS/CTS/DTR/DTE/CD) and Ring Indicator.
• uaegfx RTG P96Prefs support.
• Striker Manager and Multi-Player Soccer Manager dongle emulation.
• Statefile complete blitter state save/restore is now fully supported in cycle-accurate modes. Previously blitter was force-finished before saving state.
• Ultra extreme overscan mode now includes blanking regions, HV sync and Composite sync regions drawn using grid pattern.

Possible Breaking change: default keyboard layout changed

• Key left of backspace (key that does not exist in PC keyboards) is now mapped to F11 and key between zero and above key is now mapped to key in same physical location as key in Amiga keyboard. Input panel has checkbox that swaps these two keys.
• Key above shift and left of enter is now mapped to same physical location as key in Amiga keyboard.
• Strange German-only keymap special #-key mapping removed.

And more!

WinUAE 4.10.0 bugs fixed

• Chipset emulation updates and bug fixes.
• Interlace filter mode saved invalid config in certain situations, causing crash when loaded. Also added validation to config loader that detects similar config errors.
• GDI mode RTG hardware cursor leaved garbage when it was in top/left corner of screen and it was not fully disabled when Amiga was reset.
• Serial port Ring Indicator signal fixed. If both printer and serial port was enabled, printer status was invalid.

Older bugs fixed

• Input device’s Input panel custom configuration was lost if config was loaded and saved when custom configured input device was not connected.
• Game Ports panel custom input configuration was not automatically remapped to original input device if order or number of input devices changed.
• Game Ports panel “Default” game controller type didn’t fully switch to CD32 pad mode when CD32 hardware was configured.
• FM801 PCI sound card didn’t work in Voodoo 3 + Mediator configuration.
• PCI bridgeboard crash when accessing non-existing board’s IO/RAM space.
• Exclusive fullscreen Direct 3D 11 mode + Fullscreen GUI Misc panel option ticked and entering GUI: GUI window was not positioned correctly.
• Video recording after loading statefile recorded one empty and one corrupted frame when recording was started.

New features/updates

• Added continuous screenshot mode to GUI. When ticked, screenshot is taken automatically every frame.
• Disabled move left/right joystick autoswitching mode. It was too easy to do it accidentally. Only buttons are supported.
• Clear Harddrives panel list when loading hardware-only config.
• Taking screenshot when DF0: is enabled but empty and CD drive is enabled but not empty: select CD image name. (Previously CD was ignored)

Major update

• 68000 based unexpanded (with optional Slow or Fast RAM expansion) configurations are now 100% cycle-accurate.
• Big thanks to ross for writing test programs that required perfect cycle accuracy. Lots of expected and unexpected hardware features found and implemented.

Featute updates that got delayed but will be implemented in 5.0

• OCS and ECS Denise mid screen resolution changes are not pixel perfect, correct chip model specific bit pattern is not emulated yet. AGA is pixel perfect.
• Not all blitter line draw width != 2 (invalid line draw configuration, normally not used) conditions are 100% accurate.
• Disk status/interrupt timing is not fully confirmed yet.

New hardware emulation features and update

• 68000 emulation is finally fully cycle accurate, last missing part, interrupt level change detection timing, is now cycle accurate.
• Custom chipset interrupt timing is now cycle accurate.
• CIA emulation is now fully cycle accurate. Timers were accurate previously but now also interrupt timing, TOD counting, CPU/E-clock sync, and more, including undocumented side-effects are cycle accurate.
• Serial port internal timing, interrupt timing, including SERDATR status bits are now cycle accurate (I used serial port interrupts as a timer in my cputester real 68000 interrupt timing tests)
• Audio interrupt timing is now cycle accurate (Was almost fully accurate previously).
• Blitter timing is now cycle accurate (previously startup behavior and interrupt timing was not fully accurate).
• Blitter line mode with invalid settings (for example width not 2, octant and line direction mismatch etc) is now almost accurately emulated. Some conditions are not fully correct.
• Copper is now cycle accurate, previously some special cases were not handled correctly.
• More undocumented chipset features implemented.
• A1000 Denise bug emulated: sprites end horizontally 1 lores pixel later than bitplane horizontal window end. Currently enabled when A1000 Agnus is selected.
• OCS/ECS vs AGA EHB on/off mid screen change different behavior emulated.
• Emulated chipset mode display is blanked if programmed mode is active but has invalid configuration (for example too short or too long sync pulses or missing syncs, genlock sync enabled without genlock, etc).
• Optional display mode change resync black screen delay.
• Programmed custom chipset modes again use also blanking timing to position the display in addition to vsync and hsync (Most real world SVGA monitors do the same).
• Max allowed programmed mode non-interlaced vertical line count is now 800 (increased from 592), special 700+ line programmed modes are possible and compatible with real SVGA monitors.
• Refresh cycles conflicting with bitplane DMA is now accurately emulated, including all display and audio related glitches it can cause.
• Optional Chip RAM and Slow RAM power up pattern emulation, enabled by default.
• Color palette is now filled with pseudo-random contents at power up (was all black previously).
• Monitor type selection. Composite sync or H/V sync. ECS Agnus/AGA programmed display modes can generate different C-Sync and H/V sync signals.

New other features and updates

• RTG (uaegfx) Picasso96 v3.0+ mixed mode screen draggging is enabled by default.
• RTG (uaegfx) blitter emulation now supports previously unsupported less common blitter operations.
• RTG (uaegfx and emulated boards) automatic integer scaling support.
• On the fly FloppyBridge drive change to normal or back now triggers automatic disk change condition.
• Harddrive panel Full drive/RDB mode is now normal checbox. Hopefully it is less confusing than button that didn’t look like a button.
• Larger default GUI size and slightly larger font if Windows desktop is large enough (at least 1600*1024).
• CD audio is now always mixed with Paula audio. Separate CD audio output support removed.
• Some American Laser Games didn’t have ROM descrambling support, also added missing ROM variants.
• Added American Laser Games Quickstart support.
• Added NVRAM path to Paths panel. Arcade/CD32/CDTV hardware NVRAM files default to this path.
• Keyboard reset change, reset state is kept until at least one key is released.
• CTRL+C in console log/debug window does not anymore close WinUAE. CTRL+C in newer Windows versions can be used as a Copy operation.
• Changed CTRL+F12 fullscreen/windowed switch: If already switched from full-window to window. Next CTRL+F12 will return back to full-window, not fullscreen.
• Optional interlace mode filter profile added.
• DirectDraw mode was replaced with GDI mode. GDI mode does not support exclusive fullscreen but supports basic scaling modes and uaegfx hardware cursor that DirectDraw mode did not support.
• Palette mode screenshot support. If enabled and screen has <= 256 colors, palette mode screenshot is created. It also attempts to preserve first 32 color entries if possible. RTC is automatically enabled if chipset extra= and system has fast ram, slow ram or chip ram expansion.
• Save MSM6242B RTC model control registers to RTC file if they are modified. Previously only RF5C01A (Used in big box Amigas) control registers (and NVRAM) was saved.
• If Quickstart ROM based Arcade hardware config (Arcadia or ALG) is selected, NVRAM file name is automatically set to ROM name. Genlock video file path is also set if ALG ROM is selected. Config files are not affected.
• ROM file list sorting changed, added grouping, sort by group priority first (KS ROMs, extended KS ROMs, freezer ROMs etc..), then alphabetically.
• Sometimes old graphics was temporarily visible in RTG modes if RTG had visible black borders (depends on scaling mode) and screen was switched and new screen had larger size/resolution.
• Added “Slow” flag to RAM panel. If set, selected memory bank has Chip RAM timing but is not Chip RAM capable. Advanced chipset panel “C00000 is Fast RAM” removed, it is not needed anymore.

4.9.x bugs fixed

• Sprite to playfield and playfield to playfield collisions were unreliable.
• RTG (uaegfx) overlay was not drawn. 32-bit Windows only.
• Magic mouse mode without virtual mouse driver installed: mouse position was incorrect in RTG modes and it also ignored scaling modes.
• If hardware emulated RTG board VRAM was immediately (no gap in address space) after any RAM/ROM region and JIT direct was enabled: first 4096 bytes (host CPU page size) of VRAM was not fully JIT direct compatible and any direct read or write to first 4096 bytes would not access VRAM correctly, causing unexpected graphics glitches.
• Quickstart panel floppy bootblock check used current track of drive (not track 0). Broken when FloppyBridge support was added.
• Hires resolution and hires BPLCON1 bit set (or shres and shres BPLCON1 bit): single pixel horizontal offset may have appeared in right side of screen. AGA and non-subpixel mode only.
• CD32/CDTV Quickstart mode “remembered” previous DF0: setting and didn’t disable it by default (even if Quickstart panel showed it as disabled).
• CD32/CDTV Quickstart panel DF0: was not possible to select/enable.
• Z2 RAM configuration was unreliable.

Older bugs fixed

• CHD CD image CD audio timing fix.
• Direct3D11 with custom shaders leaked memory.
• Directory filesystem softlinks fixed.
• 68060 without FPU or disabled FPU and executing FPU instruction that uses -(An) or (An)+ addressing mode: D7 was modified when exception stack frame was created.
• Reading from non-existing custom register always returned 0xFFFF instead of data that previous cycle’s possible DMA access transferred.
• Higher 68000/010 integer clock multipliers (4x+) in CE mode: chipset access timing was not accurate.
• Second 1M extended ROM bank is now internally split to two 512k banks. Non-aligned bank start and size caused problems in some configs.
• Hardware emulated RTG boards that have physically swapped red and blue output (Spectrum, Piccolo, Piccolo SD64) had wrong colors in 24/32-bit modes.
• Piccolo Z3 and Piccolo SD64 Z3 had wrong autoconfig board logical size (which crashed the driver).
• CD audio was not resumed if WinUAE was unminimized and minimize was configured to pause emulation.

Debugging related updates and fixes

• Ultra extreme overscan mode. Shows complete full raster including blanking regions. Horizontal and vertical blanking disabled. COLOR0 changes are always visible.
• DMA debugger shows CIA accesses (including cycles lost due to E-Clock sync) and Chip RAM RAS/CAS addressing values.
• DMA debugger shows CPU memory access type (instruction fetch or data access). Interrupt level and interrupt level change detection are included.
• DMA debugger shows CPU opcodes in basic form (“NOP”, “MOVE” etc), vertically. Which can look a bit weird…
• Added CPU STOP state information to DMA debugger (| = STOP idle cycle, + = STOP idle cycle and higher IPL detected = STOP ending soon)
• Visual DMA debugger shows conflicting cycles as blinking red pixels.
• Horizontal and vertical position are now included in debugger history output (H/HH)
• Added OR, AND and XOR operators to debugger calculator (|, &, ^).
• sp command parsed attached sprites incorrectly.
• It was not possible to enter debugger anymore if CPU was stuck in stopped state after entering and exiting the debugger once.
• Tracing STOP instruction now works differently, each single step executes one internal STOP “round”.
• Memwatch break point that crossed 64k “bank” didn’t map last 64k “bank” if it was only partially needed.
• Self modifying code (smc) debugger feature now clears detected modifications if 68020+ instruction cache is flushed.
• DMA debugger (both console and visual) better support for variable/toggling horizontal and vertical line counts.

Detailed change log in winuaechangelog.txt

WinUAE 4.9.1 (02.02.2022) released.

4.9.0 bugs fixed

• JIT indirect was unstable.
• JIT enabled + emulated (not uaegfx) RTG board corruption was possible in certain situations.
• Direct 3D 11 mode shader buffer leak.
• x86 AT bridgeboard (A2286 and A2386SX) boot crash.
• PCem RTG board 15 and 16-bit lores modes didn’t horizontally double correctly.
• Remove interlace artifact option added 1 scanline offset to bitplanes and sprites.
• Custom chipset and programmed display mode updates and fixes.

Older bugs fixed

• Mouse would start moving erratically if emulator has been running continuously more than 10 hours.
• Integer scaling only worked correctly if horizontal (lores, hires, superhires) and vertical resolution (non-doubled, doubled) matched.Filtered lores had wrong colors if host graphics mode was 16-bit.
• NTSC mode and software switch to PAL: display was incorrectly vertically stretched.
• Software YUV based filters had bad colors (32-bit only)
• Paula configured for 4us (GCR) mode but normal 2us MFM disk in drive: disk index reporting was unreliable.

Updates

• Programmed display mode improvements (positioning, blanking etc)
• uaegfx Picasso96 overlay now works correctly with screen dragging.

New features

• It is now possible to type (almost) normally in warp mode. Keyboard key (if non-qualifier key) presses are released immediately in warp mode.
• Epson printer emulation does not anymore print each page as a separate document.
• Added IDE scsi.device disable hack. Makes booting noticeably quicker on OS39 and newer KS versions if mainboard IDE is not needed.
• PCem Cirrus Logic SVGA emulation planar support enabled. Picasso96 supports 4bit/16 color planar mode.
• “Default” filter and integer scale filters now automatically double horizontal or vertically if horizontal and vertical resolutions are different (for example lores + vertical doubling)