AMSTRAD CPC464 - Page 187

window. Fills affected cells with the current
Paper Ink.
&13 19 * DC3
Clear from start of window to, and
including, the current character position.
Fills affected cells with the current Paper
Ink.
&14 20 * DC4
Clear from, and including, the current
character position to the end of window.
Fills affected cells with the current Paper
Ink.
&15 21 NAK
Turn off text screen. The screen will not
react to anything sent to it until after an
ACK (&06 6) is sent.
&16 22 SYN 0..1
Parameter MOD 2. Transparent option.0
disables, 1 enables
&17 23 ETB 0..3
Parameter MOD 4
1 Sets Normal Graphics Ink Mode
2 “ XOR ” ” ”
3 ” AND ” ” ”
4 ” OR “ “ “
&18 24 CAN
Exchange Pen and Paper Inks.
&19 25 EM
0..255
0..255
0..255
0..255
0..255
0..255
0..255
0..255
0..255
Set Matrix for User Definable Character.
Equivalent to a SYMBOL command. Takes
nine parameters. The first parameter
specifies which character’s matrix to set.
The next eight specify the matrix. The most
significant bit of the first byte corresponds
to the top left hand pixel of the character
cell, the least significant bit of the last byte
corresponds to the bottom right hand pixel
of the character cell.
&1A 26 SUB
1..80
1..80
1..25
1..25
Set Window. Equivalent to a WINDOW
command. The first-two parameters specify
the left and right hand edges of the window
the smaller value is taken as the left edge,
the larger the right. The second two
parameters specify the top and bottom
edges of the window - the smaller value is
taken as the top edge, the larger the bottom
edge.
Value Name Parameter Meaning
&1B 27 ESC No effect. Ignored.
&1C 28 FS 0..15
0..31
0..31
Set Ink to a pair of colours.
Equivalent to an Ink command. The first
parameter (MOD 16) specifies the Ink, the