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- Short: C64 emulator, V2.4
- Uploader: cbauer@iphcip1.physik.uni-mainz.de (Christian Bauer)
- Author: cbauer@iphcip1.physik.uni-mainz.de (Christian Bauer)
- Type: misc/emu
- Version: 2.4
- Requires: AmigaOS 2.1, 68020
-
- 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
-