Changes
/* Memory layout */
ESC 1 - enable status line
ESC 2 - set language
ESC 3 - set screen mode?
ESC A - cursor up
ESC B - cursor down
PCW and Spectrum support viewports. This is not supported on CPC. CPC assumes a single viewport covering the entire screen and it is moved up/down using software when using insert line or delete current, but moved up using hardware otherwise.
==== ESC 2 - set language ====
ESC 2 <language>
<language> is 0 based. The value is anded with 7. Internally this will transfer language specific character graphics into the font for display.
==== ESC 3 - set display mode ====
Set the display mode:
ESC 3 <mode number>
<mode number> is 0 based. The value is anded with 3.
e.g. to set mode 0:
ESC,3,0
==== ESC b - set foreground ====
Set the foreground (pen 1) colour:
ESC b <colour>
Colour is 0 based with 32 added. It is a 2 bits per pixel %00rrggbb colour.
==== ESC c - set background ====
Set the background (pen 0 and border) colour:
ESC c <colour>
Colour is 0 based with 32 added. It is a 2 bits per pixel %00rrggbb colour.
Set the cursor position:
ESC Y <y> <x>
Coordinates are relative to top-left and are 0 based with 32 added.
e.g. for x,y of 2,10:
ESC,'Y',10+32,2+32
=== Memory layout ===
* 1st 64KB has Amstrad's XBIOS (callable using 'userf'), CCP, BDOS, BIOS, screen and firmware. Screen is at &4000-&7fff. Firmware is used. AMSDOS is not used.
* 2nd 64KB has the TPA and the shared code.
=== Extra memory ===
