Short: C64 emulator, V2.4 Author: cbauer@iphcip1.physik.uni-mainz.de (Christian Bauer) Uploader: polluks+aminet sdf lonestar org (Stefan Haubenthal) Type: misc/emu Version: 2.4 Requires: 68020 Architecture: m68k-amigaos >= 2.1 URL: http://frodo.cebix.net Frodo is a multitasking freeware C64 emulator for the Amiga and DraCo. OS2.1 and a 68020 (or better) are required, as well as copies of the original C64 ROMs, which are not included. This emulator focuses on the exact reproduction of special graphical effects possible on the 64, and has therefore relatively high system requirements. Using a 68060-50 and a CyberVision card gives about 140-160% of the original C64 speed in standard text mode in the emulation's most precise mode and about 700% in its fastest mode. Using a line-based VIC model, Frodo is capable of running most games and demos correctly, even those with FLI, FLD, DYCP, open top/bottom borders, multiplexed sprites etc. A single-cycle version of the emulator, "Frodo SC", is included that runs even those programs that fail on the line-based emulation. A graphics card (any one whose modes are selectable with a screenmode requester will do) is strongly recommended for faster display as the emulator's routines have been designed for a chunky display memory. The "Graffiti" video card is also supported. Some small demo programs and the full source code in C and assembly language are included in the archive. Changes from V2.3: - The C64 Basic and kernal ROMs are now included in the archive - FreeScreenBuffer() was called even under OS 2.x - Corrected idle state display - The last line of Y expanded sprites wasn't drawn - Writing to $d011/$d012 can trigger raster IRQs - Support for Graffiti video card - Corrected translation of 0xc1..0xda characters in conv_from_64() - 1541 emulation ignores drive numbers when opening the directory and allows wildcards for selective directory reading - Reading from a write-only SID register returns the last byte written to the SID - D2 and D3 were swapped in the SID card schematics - Corrected ISB, RRA, SHX and SHY instructions - Frodo SC: CIA timer one-shot mode didn't stop the timers - Frodo SC: Corrected timing of CIA timers (starting/stopping/loading) - Frodo SC: Fixed bug in BackECM - Frodo SC: More undocumented opcodes implemented - Czech catalog files