Printer strobe is connected to 8255 port C bit 4. The strobe is negated by the hardware.
Printer busy is connected to 8255 port B bit 6.
== Aleste Gate Array (aka Patasonic's Multiport) ==
3. Aleste "Gate Array" is similar in functionality to the Gate-Array in the CPC/Plus.
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=== Gate Array Register 0 ===
5. Pen index:
|3..0||Pen index
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=== Gate Array Register 1 ===
6. The number is converted by IC D62.
* When MAPPER is not set, the number is equivalent to the CPC's Gate-Array colour value, but this is looked up in IC D62 and converted into a 2-bit per element R,G,B for the aleste video hardware.
=== Gate Array Register 2 ===
7.
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=== Gate Array Register 3 ===
?
== Upper ROM Bank ==
9. The number is looked up in D62 and converted into another number which is the 16K page index in the Aleste's internal 64k ROM.
== Ext Port ==
10.