21/01/2011: Another update and other changes in the management of the keyboard. I had to give it much thought and theme, but in the end I managed to get the key May do the same function for the PC and the Spectrum. So we return to a previous situation, where does control joystick fire button and Alt continues to yours, making Symbol Shift. By the way I added functionality to other keys, namely: ESC Break ago, ie Caps Shift + space. The key with a ´No´ does Extended Mode, the ´character´ does function Edit (Caps + 1) and the character ´"´puts the cursor in Graphics Mode. The other symbols you can type all, although some of them require the editor is in Extended Mode. In the Spanish keyboard the characters {and [not be entered directly by having a different treatment at low level, since they are dead keys code.
On the other hand I have corrected a few things. Now you can load ROMs in the Interface II with less than 16KB in size, in fact, you can load ROMs with sizes between 1 byte and 16KB. That loads the Test Sinclair has only 8KB ROM. The other fix allows loading some fairly problematic TZX loading routines very sensitive, such as MASK and Basil the Great Mouse Detective.