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Blitzen 0.3 =========== By Peter Gordon (pete()petergordon.org.uk) Blitzen is a blitter emulator for OS4. It attempts to impliment enough of the functionality of the classic Amiga blitter to make a few more old programs run on OS4 systems without the classic chipset (IE AmigaOne). The following is currently emulated: - Ascending and descending copy operations with shift - Descending mode fill operations with shift - Line mode (not tested) - End of DMA interrupt for apps using SetIntVector() - The 68k "WaitBlit" function is patched to wait for the emulated blitter What is not emulated: - Ascending mode fill operations (the hardware reference says they don't work properly, and I don't currently know what happens if you try it on the real hardware). - End of DMA interrupt for apps abusing the 68k VBR You can run blitzen at any time, and quit it with Ctrl-C. |
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