The 68000 at 7 MHz just wasn't fast enough to emulate the 6502 at acceptable speed. 64 emulation was much more difficult. Download sixtyforce and try it yourselfI wanted to get a Mac emulator, but was never able to get the ROMs at a decent price. Nearly every part of a Nintendo 64 has been painstakingly recreated entirely out of software to pull off such an amazing feat. It does this by dynamically translating the code that a Nintendo 64 uses into something your Mac understands. Sixtyforce is an emulator that runs Nintendo 64 games.Default is enable extended keyboard keys in C128/CPM modes only.The C128 Direction keys are mapped to PC cursor keys, and CRSR U/D and CRSR L/R mapped to PC NUMPAD / and * when Extended Keyboard keys enabled.UNLESS otherwise stated assume updates apply to Version 2 of Z64K only 4 October ALT+Q = Toggle capture mouse (C128 & C64)The following keymappings override the values in the keyboard configuration editor for the C128For emulated NUMPAD Joystick Num Lock needs to be OFF.There is an option to enable/disable extra c128 keys via settings=>setup=>Extended Keyboard keys in the latest downloadable version of the emulator. ALT+DELETE = Copy screen text to clipboard ALT+2 = Toggle 2nd display ON/OFF (C128 only) Added 57600 baud rate option for userport rs232 to support Retroterm V0.13 Allow Userport modem to send and receive data at same time Fixed debugging with monitor for C128 Z80 cpu memory locations $1800-$3fff Note to self: Must find some decent icons for the single stepping icons. Single steps instruction but treats subroutines as a single instruction. Added Machine Monitor next (n) command.
Commodore 64 Emulator Code That ASetting of Z80 registers using machine monitor is now functional Applied some improvements to ZX Spectrum snow effect as discussed at Playing Robotics on ZX UNO+ - Spectrum Computing Forums More improvements to ZX spectrum snow effect Option to disable userport rs232 modem emulation. Improved internal modem Hayes command set. Default internal modem with echo off, verbose on, and quiet on. Htst.prg flickers display like real hardware refresh DRAM in 2 Mhz mode reads valid data. Disclaimer: not thoroughly tested but is much better than the default English mapping when using a German Keyboard. Included a default keyboard mapping for German keyboards thanks to Tokra. Fixed broken fast 1581 serial caused by recent changes to support UP9600 Psx emulator mac snow leopardMinor adjustment to value read for VIC $9004 register when in NTSC mode depending on cycle Data transfers much more reliable with UP9600 and standard userport drivers. Userport rs232 modem synchronisation greatly improved. Fixed bug with command line option -limitcycles that caused it not to trigger with TestBench scripts. Allow ZX spectrum to be default application on startup Huge improvement with sending valid data! Improvements to Userport RS232. Fixes VICE bug#582 and Freespin still works! Update to VIA port latching. Drive sends pulse from byte ready signalto trigger latching. Adobe ip to block for macUpdated default VDC palette to c128-vdc-deekay.vpl as suggested by Deekay in the readme of the Colour Spectrum demo. Enabled Internal Palette selector available in settings. His-protection test passes. Adjusted disk SYNC detection. Added undocumented drive machine monitor commands motor and trackMotor - turn motor on/off , without arguments prints status of drive motorTrack - move rw head in/out 1 half track, without arguments prints current track Freespin demo doesn't crash anymore. Freespin display a lot more stable (when it actually runs). Improved sync detection. C128 support of drive GPU required for Freespin demo When screen turn blacks reattach the same disk image to start the demo. Freespin support is still a work in progress.To play the Freespin demo, after the drive code has loaded, select Drive GPU from Machine settings=> Model panel. Displays graphical effects correctly (when it works) warning: sometimes crashes the drive where the entire emulator needs to be closed and restarted. Some improvements to userport rs232 emulation. Note: Not reliable and does not play sounds yet.
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