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-
- ====================
- VIC-20 Emulator v1.1
- ====================
-
- This is the second release of my Vic-20 emulator. Lots of people wanted one ,
- including me, so here it is.
-
- vic20 -s<n> -f<n> -c<n> <image>
-
- -s<n> Sets the frame skip rate (1 up)
- -f<n> Sets the frames per IBM Clock tick (default = 3)
- -c<n> Sets the cycles per scan line
- -g<n> Set timer granularity (mask scan lines when VIA timers updated)
- (default = 15)
- -d Switch off double buffering
-
- <image> Name of an 8k/16k cartridge file. If none is provided it boots
- into BASIC.
-
- ESC quit
- F10 load image (.prg format must be *.prg)
- this image format begins with 2 bytes which are the load
- address.
- F11 load cartridge (8 or 16k,must be called *.crt)
- F12 reset
-
- Runstop ` (top left of keyboard)
- Commodore Large 0 key
- + use keypad
- ; use # key
- GBP use Alt key
- left shift now left shift !
- Delete use Alt-Gr (sorry !)
-
- You will need these in the current directory :-
-
- basic.rom kernel.rom chargen.rom
-
- These are the basic,kernel and character generator ROMS, which are available
- from all the VIC FTP sites.
-
- Games should be 8k or 16k cartridge images. The 8k images should load at A000.
- The 16k images are split into 2 parts 'xxx.60' and 'xxx.A0'. To run these,
- concatenate them together as copy /b xxx.60 + xxx.a0 xxx.crt
- At present it does not handle carts that split into 20/a0 parts (Donkey Kong)
-
- NOTE : All cartridges should be of type *.CRT or they will not be picked up
- by the selector.
-
-