Specifications
The active slot is displayed on four (4) LEDs on targets that support this feature.
A 5
th
switch controls the auto-start for images in locations 2-15. You can think of this switch as
inserting / removing the cartridge from your Coco. Technically however, it's more akin to placing
sticky-tape over the CART# pin, as the ROM image is still accessible by the Coco.
See the reference section for your target harwdare for more details.
PS/2 Keyboard
The PS/2 keyboard emulates the Coco keyboard as far as possible.
However, due to key mapping differences between the Coco and modern-day PC's, there are some
rather annoying differences that are actually quite difficult (if not impossible) to re-map in a
hardware emulation.
The following table details the mappings that are incompatible:
Coco PS/2
@ `
<CLEAR> <HOME>
: '
<BREAK> <INS>
<LEFT> <LEFT> or <BS>
<SHIFT> <LSHIFT> or <RSHIFT>
@ `
" @
& ^
' &
( *
) (
= _
+ :
* "
There are also a number of special keys assigned to the PS/2 keyboard:
PS/2 Key Function
<CTRL><ESC> Platform reset
<F3> CPU reset
<F10> VDG debug display
<F11> Joystick #1 button
<F12> Joystick #2 button
<KEYPAD+> Volume up